@article{HenkenOosterhuisOehlschlaegeretal.2012,
  author    = {Henken, F. E. and Oosterhuis, K. and {\"O}hlschl{\"a}ger, Peter and Bosch, L. and Hooijberg, E. and Haanen, J. B. A. G. and Steenbergen, R. D. M.},
  title     = {Preclinical safety evaluation of DNA vaccines encoding modified HPV16 E6 and E7},
  series = {Vaccine},
  volume    = {30},
  journal   = {Vaccine},
  number    = {28},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0264-410X},
  doi       = {10.1016/j.vaccine.2012.04.013},
  pages     = {4259 -- 4266},
  year      = {2012},
  abstract  = {Persistent infection with high-risk human papillomaviruses (hrHPV) can result in the formation of anogenital cancers. As hrHPV proteins E6 and E7 are required for cancer initiation and maintenance, they are ideal targets for immunotherapeutic interventions. Previously, we have described the development of DNA vaccines for the induction of HPV16 E6 and E7 specific T cell immunity. These vaccines consist of 'gene-shuffled' (SH) versions of HPV16 E6 and E7 that were fused to Tetanus Toxin Fragment C domain 1 (TTFC) and were named TTFC-E6SH and TTFC-E7SH. Gene-shuffling was performed to avoid the risk of inducing malignant transformation at the vaccination site. Here, we describe the preclinical safety evaluation of these candidate vaccines by analysis of their transforming capacity in vitro using established murine fibroblasts (NIH 3T3 cells) and primary human foreskin keratinocytes (HFKs). We demonstrate that neither ectopic expression of TTFC-E6SH and TTFC-E7SH alone or in combination enabled NIH 3T3 cells to form colonies in soft agar. In contrast, expression of HPV16 E6WT and E7WT alone or in combination resulted in effective transformation. Similarly, retroviral transduction of HFKs from three independent donors with both TTFC-E6SH and TTFC-E7SH alone or in combination did not show any signs of immortalization. In contrast, the combined expression of E6WT and E7WT induced immortalization in HFKs from all donors. Based on these results we consider it justified to proceed to clinical evaluation of DNA vaccines encoding TTFC-E6SH and TTFC-E7SH in patients with HPV16 associated (pre)malignancies.},
  language  = {en}
}
@article{ImmelGruetzkeSpaeteetal.2012,
  author    = {Immel, Timo and Gr{\"u}tzke, Martin and Sp{\"a}te, Anne-Katrin and Groth, Ulrich and {\"O}hlschl{\"a}ger, Peter and Huhn, Thomas},
  title     = {Synthesis and X-ray structure analysis of a heptacoordinate titanium(IV)-bis-chelate with enhanced in vivo antitumor efficacy},
  series = {Chemical Communications},
  volume    = {48},
  journal   = {Chemical Communications},
  number    = {46},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1364-548X},
  doi       = {10.1039/C2CC31624B},
  pages     = {5790 -- 5792},
  year      = {2012},
  abstract  = {Chelate stabilization of a titanium(IV)-salan alkoxide by ligand exchange with 2,6-pyridinedicarboxylic acid (dipic) resulted in heptacoordinate complex 3 which is not redox-active, stable on silica gel and has increased aqueous stability. 3 is highly toxic in HeLa S3 and Hep G2 and has enhanced antitumor efficacy in a mouse cervical-cancer model.},
  language  = {en}
}
@article{PaulssenKongArciszewskietal.2012,
  author    = {Paulßen, Elisabeth and Kong, Shushu and Arciszewski, Pawel and Wielbalck, Swantje and Abram, Ulrich},
  title     = {Aryl and NHC Compounds of Technetium and Rhenium},
  series = {Journal of the American Chemical Society},
  volume    = {134},
  journal   = {Journal of the American Chemical Society},
  number    = {22},
  publisher = {ACS Publications},
  address   = {Washington, DC},
  issn      = {1520-5126},
  doi       = {10.1021/ja3033718},
  pages     = {9118 -- 9121},
  year      = {2012},
  abstract  = {Air- and water-stable phenyl complexes with nitridotechnetium(V) cores can be prepared by straightforward procedures. [TcNPh2(PPh3)2] is formed by the reaction of [TcNCl2(PPh3)2] with PhLi. The analogous N-heterocyclic carbene (NHC) compound [TcNPh2(HLPh)2], where HLPh is 1,3,4-triphenyl-1,2,4-triazol-5-ylidene, is available from (NBu4)[TcNCl4] and HLPh or its methoxo-protected form. The latter compound allows the comparison of different Tc-C bonds within one compound. Surprisingly, the Tc chemistry with such NHCs does not resemble that of corresponding Re complexes, where CH activation and orthometalation dominate.},
  language  = {en}
}
@article{PaulssenNgyugenKahlckeetal.2012,
  author    = {Paulßen, Elisabeth and Ngyugen, Hung Huy and Kahlcke, Nils and Deflon, Victor M. and Abram, Ulrich},
  title     = {Tricarbonyltechnetium(I) and -rhenium(I) complexes with N′-thiocarbamoylpicolylbenzamidines},
  series = {Polyhedron},
  volume    = {40},
  journal   = {Polyhedron},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0277-5387},
  doi       = {10.1016/j.poly.2012.04.008},
  pages     = {153 -- 158},
  year      = {2012},
  abstract  = {N,N-Dialkylamino(thiocarbonyl)-N′-picolylbenzamidines react with (NEt4)2[M(CO)3X3] (M = Re, X = Br; M = Tc, X = Cl) under formation of neutral [M(CO)3L] complexes in high yields. The monoanionic NNS ligands bind in a facial coordination mode and can readily be modified at the (CS)NR1R2 moiety. The complexes [99Tc(CO)3(LPyMor)] and [Re(CO)3(L)] (L = LPyMor, LPyEt) were characterized by X-ray diffraction. Reactions of [99mTc(CO)3(H2O)3]+ with the N′-thiocarbamoylpicolylbenzamidines give the corresponding 99mTc complexes. The ester group in HLPyCOOEt allows linkage between biomolecules and the metal core.},
  language  = {en}
}
@article{ScheerBalimaneHaywardetal.2012,
  author    = {Scheer, Nico and Balimane, Praveen and Hayward, Michael D. and Buechel, Sandra and Kauselmann, Gunther and Wolf, C. Roland},
  title     = {Generation and Characterization of a Novel Multidrug Resistance Protein 2 Humanized Mouse Line},
  series = {Drug Metabolism and Disposition},
  volume    = {40},
  journal   = {Drug Metabolism and Disposition},
  number    = {11},
  publisher = {ASPET},
  address   = {Bethesda, Md.},
  issn      = {1521-0111},
  doi       = {10.1124/dmd.112.047605},
  pages     = {2212 -- 2218},
  year      = {2012},
  abstract  = {The multidrug resistance protein (MRP) 2 is predominantly expressed in liver, intestine, and kidney, where it plays an important role in the excretion of a range of drugs and their metabolites or endogenous compounds into bile, feces, and urine. Mrp knockout [Mrp2(-/-)] mice have been used recently to study the role of MRP2 in drug disposition. Here, we describe the first generation and initial characterization of a mouse line humanized for MRP2 (huMRP2), which is nulled for the mouse Mrp2 gene and expresses the human transporter in the organs and cell types where MRP2 is normally expressed. Analysis of the mRNA expression for selected cytochrome P450 and transporter genes revealed no major changes in huMRP2 mice compared with wild-type controls. We show that human MRP2 is able to compensate functionally for the loss of the mouse transporter as demonstrated by comparable bilirubin levels in the humanized mice and wild-type controls, in contrast to the hyperbilirubinemia phenotype that is observed in MRP2(-/-) mice. The huMRP2 mouse provides a model to study the role of the human transporter in drug disposition and in assessing the in vivo consequences of inhibiting this transporter by compounds interacting with human MRP2.},
  language  = {en}
}
@article{ScheerKapelyukhRodeetal.2012,
  author    = {Scheer, Nico and Kapelyukh, Yury and Rode, Anja and Buechel, Sandra and Wolf, C. Roland},
  title     = {Generation and characterization of novel cytochrome P450 Cyp2c gene cluster knockout and CYP2C9 humanized mouse lines},
  series = {Molecular Pharmacology},
  volume    = {82},
  journal   = {Molecular Pharmacology},
  number    = {6},
  publisher = {ASPET},
  address   = {Bethesda, Md.},
  issn      = {1521-0111},
  doi       = {10.1124/mol.112.080036},
  pages     = {1022 -- 1029},
  year      = {2012},
  abstract  = {Compared with rodents and many other animal species, the human cytochrome P450 (P450) Cyp2c gene cluster varies significantly in the multiplicity of functional genes and in the substrate specificity of its enzymes. As a consequence, the use of wild-type animal models to predict the role of human CYP2C enzymes in drug metabolism and drug-drug interactions is limited. Within the human CYP2C cluster CYP2C9 is of particular importance, because it is one of the most abundant P450 enzymes in human liver, and it is involved in the metabolism of a wide variety of important drugs and environmental chemicals. To investigate the in vivo functions of cytochrome P450 Cyp2c genes and to establish a model for studying the functions of CYP2C9 in vivo, we have generated a mouse model with a deletion of the murine Cyp2c gene cluster and a corresponding humanized model expressing CYP2C9 specifically in the liver. Despite the high number of functional genes in the mouse Cyp2c cluster and the reported roles of some of these proteins in different biological processes, mice deleted for Cyp2c genes were viable and fertile but showed certain phenotypic alterations in the liver. The expression of CYP2C9 in the liver also resulted in viable animals active in the metabolism and disposition of a number of CYP2C9 substrates. These mouse lines provide a powerful tool for studying the role of Cyp2c genes and of CYP2C9 in particular in drug disposition and as a factor in drug-drug interaction.},
  language  = {en}
}
@article{LempiaeinenCouttetBolognanietal.2012,
  author    = {Lempi{\"a}inen, Harri and Couttet, Philippe and Bolognani, Federico and M{\"u}ller, Arne and Dubost, Val{\´e}rie and Luisier, Rapha{\"e}lle and Rio-Espinola, Alberto del and Vitry, Veronique and Unterberger, Elif B. and Thomson, John P. and Treindl, Fridolin and Metzger, Ute and Wrzodek, Clemens and Hahne, Florian and Zollinger, Tulipan and Brasa, Sarah and Kalteis, Magdalena and Marcellin, Magali and Giudicelli, Fanny and Braeuning, Albert and Morawiec, Laurent and Zamurovic, Natasa and L{\"a}ngle, Ulrich and Scheer, Nico and Sch{\"u}beler, Dirk and Goodman, Jay and Chibout, Salah-Dine and Marlowe, Jennifer and Theil, Dietlinde and Heard, David J. and Grenet, Olivier and Zell, Andreas and Templin, Markus F. and Meehan, Richard R. and Wolf, Roland C. and Elcombe, Clifford R. and Schwarz, Michael and Moulin, Pierre and Terranova, R{\´e}mi and Moggs, Jonathan G.},
  title     = {Identification of Dlk1-Dio3 imprinted gene cluster non-coding RNAs as novel candidate biomarkers for liver tumor promotion},
  series = {Toxicological Sciences},
  volume    = {131},
  journal   = {Toxicological Sciences},
  number    = {2},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {1094-2025},
  doi       = {10.1093/toxsci/kfs303},
  pages     = {375 -- 386},
  year      = {2012},
  abstract  = {The molecular events during nongenotoxic carcinogenesis and their temporal order are poorly understood but thought to include long-lasting perturbations of gene expression. Here, we have investigated the temporal sequence of molecular and pathological perturbations at early stages of phenobarbital (PB) mediated liver tumor promotion in vivo. Molecular profiling (mRNA, microRNA [miRNA], DNA methylation, and proteins) of mouse liver during 13 weeks of PB treatment revealed progressive increases in hepatic expression of long noncoding RNAs and miRNAs originating from the Dlk1-Dio3 imprinted gene cluster, a locus that has recently been associated with stem cell pluripotency in mice and various neoplasms in humans. PB induction of the Dlk1-Dio3 cluster noncoding RNA (ncRNA) Meg3 was localized to glutamine synthetase-positive hypertrophic perivenous hepatocytes, sug- gesting a role for β-catenin signaling in the dysregulation of Dlk1-Dio3 ncRNAs. The carcinogenic relevance of Dlk1-Dio3 locus ncRNA induction was further supported by in vivo genetic dependence on constitutive androstane receptor and β-catenin pathways. Our data identify Dlk1-Dio3 ncRNAs as novel candidate early biomarkers for mouse liver tumor promotion and provide new opportunities for assessing the carcinogenic potential of novel compounds.},
  language  = {en}
}
@article{ScheerKapelyukhMcEwanetal.2012,
  author    = {Scheer, Nico and Kapelyukh, Yury and McEwan, Jillian and Beuger, Vincent and Stanley, Lesley A. and Rode, Anja and Wolf, C. Roland},
  title     = {Modeling Human Cytochrome P450 2D6 Metabolism and Drug-drug Interaction by a Novel Panel of Knockout and Humanized Mouse Lines},
  series = {Molecular Pharmacology},
  volume    = {81},
  journal   = {Molecular Pharmacology},
  number    = {1},
  publisher = {ASPET},
  address   = {Bethesda, Md.},
  issn      = {1521-0111},
  doi       = {10.1124/mol.111.075192},
  pages     = {63 -- 72},
  year      = {2012},
  abstract  = {The highly polymorphic human cytochrome P450 2D6 enzyme is involved in the metabolism of up to 25\% of all marketed drugs and accounts for significant individual differences in response to CYP2D6 substrates. Because of the differences in the multiplicity and substrate specificity of CYP2D family members among species, it is difficult to predict pathways of human CYP2D6-dependent drug metabolism on the basis of animal studies. To create animal models that reflect the human situation more closely and that allow an in vivo assessment of the consequences of differential CYP2D6 drug metabolism, we have developed a novel straightforward approach to delete the entire murine Cyp2d gene cluster and replace it with allelic variants of human CYP2D6. By using this approach, we have generated mouse lines expressing the two frequent human protein isoforms CYP2D6.1 and CYP2D6.2 and an as yet undescribed variant of this enzyme, as well as a Cyp2d cluster knockout mouse. We demonstrate that the various transgenic mouse lines cover a wide spectrum of different human CYP2D6 metabolizer phenotypes. The novel humanization strategy described here provides a robust approach for the expression of different CYP2D6 allelic variants in transgenic mice and thus can help to evaluate potential CYP2D6-dependent interindividual differences in drug response in the context of personalized medicine.},
  language  = {en}
}
@article{SchiffelsPinkenburgScheldenetal.2013,
  author    = {Schiffels, Johannes and Pinkenburg, Olaf and Schelden, Maximilian and Aboulnaga, El-Hussiny A. A. and Baumann, Marcus and Selmer, Thorsten},
  title     = {An innovative cloning platform enables large-scale production and maturation of an oxygen-tolerant [NiFe]-hydrogenase from cupriavidus necator in Escherichia coli},
  series = {PLOS one. 2013},
  journal   = {PLOS one. 2013},
  publisher = {Public Library of Science},
  address   = {San Francisco, California},
  issn      = {1932-6203},
  doi       = {10.1371/journal.pone.0068812},
  year      = {2013},
  language  = {en}
}
@article{AbulnagaPinkenburgSchiffelsetal.2013,
  author    = {Abulnaga, El-Hussiny and Pinkenburg, Olaf and Schiffels, Johannes and E-Refai, Ahmed and Buckel, Wolfgang and Selmer, Thorsten},
  title     = {Effect of an Oxygen-Tolerant Bifurcating Butyryl Coenzyme A Dehydrogenase/Electron-Transferring Flavoprotein Complex from Clostridium difficile on Butyrate Production in Escherichia coli},
  series = {Journal of bacteriology},
  volume    = {195},
  journal   = {Journal of bacteriology},
  number    = {16},
  issn      = {1098-5530 [E-Journal]},
  pages     = {3704 -- 3713},
  year      = {2013},
  language  = {en}
}
@article{ScheeleOertelBongaertsetal.2013,
  author    = {Scheele, Sandra and Oertel, Dan and Bongaerts, Johannes and Evers, Stefan and Hellmuth, Hendrik and Maurer, Karl-Heinz and Bott, Michael and Freudl, Roland},
  title     = {Secretory production of an FAD cofactor-containing cytosolic enzyme (sorbitol-xylitol oxidase from Streptomyces coelicolor) using the twin-arginine translocation (Tat) pathway of Corynebacterium glutamicum},
  series = {Microbial biotechnology},
  journal   = {Microbial biotechnology},
  publisher = {Wiley-Blackwell},
  address   = {Oxford},
  issn      = {1751-7915},
  pages     = {202 -- 206},
  year      = {2013},
  language  = {en}
}
@article{WilmingBegemannKuhneetal.2013,
  author    = {Wilming, Anja and Begemann, Jens and Kuhne, Stefan and Regestein, Lars and Bongaerts, Johannes and Evers, Stefan and Maurer, Karl-Heinz and B{\"u}chs, Jochen},
  title     = {Metabolic studies of γ-polyglutamic acid production in Bacillus licheniformis by small-scale continuous cultivations},
  series = {Biochemical engineering journal},
  volume    = {Vol. 73},
  journal   = {Biochemical engineering journal},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-295X (E-Journal); 1369-703X (Print)},
  pages     = {29 -- 37},
  year      = {2013},
  language  = {en}
}
@article{VoigtSchroeterJuergenetal.2013,
  author    = {Voigt, Birgit and Schroeter, Rebecca and J{\"u}rgen, Britta and Albrecht, Dirk and Evers, Stefan and Bongaerts, Johannes and Maurer, Karl-Heinz and Schweder, Thomas and Hecker, Michael},
  title     = {The response of Bacillus licheniformis to heat and ethanol stress and the role of the SigB regulon},
  series = {Proteomics},
  volume    = {Vol. 13},
  journal   = {Proteomics},
  number    = {Iss. 14},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1615-9861 (E-Journal); 1615-9853 (Print)},
  pages     = {2140 -- 2146},
  year      = {2013},
  language  = {en}
}
@article{RachingerBauchStrittmatteretal.2013,
  author    = {Rachinger, Michael and Bauch, Melanie and Strittmatter, Axel and Bongaerts, Johannes and Evers, Stefan and Maurer, Karl-Heinz and Daniel, Rolf and Liebl, Wolfgang and Liesegang, Heiko and Ehrenreich, Armin},
  title     = {Size unlimited markerless deletions by a transconjugative plasmid-system in Bacillus licheniformis},
  series = {Journal of biotechnology},
  volume    = {Vol. 164},
  journal   = {Journal of biotechnology},
  number    = {Iss. 4},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  pages     = {365 -- 369},
  year      = {2013},
  language  = {en}
}
@article{WiegandDietrichHerteletal.2013,
  author    = {Wiegand, Sandra and Dietrich, Sascha and Hertel, Robert and Bongaerts, Johannes and Evers, Stefan and Volland, Sonja and Daniel, Rolf and Liesegang, Heiko},
  title     = {RNA-Seq of Bacillus licheniformis: active regulatory RNA features expressed within a productive fermentation},
  series = {BMC genomics},
  volume    = {Vol. 14},
  journal   = {BMC genomics},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {1471-2164},
  pages     = {667},
  year      = {2013},
  language  = {en}
}
@article{DuttaHartkopfFroederWitteetal.2013,
  author    = {Dutta, Suryendu and Hartkopf-Fr{\"o}der, Christoph and Witte, Karin and Brocke, Rainer and Mann, Ulrich},
  title     = {Molecular characterization of fossil palynomorphs by transmission micro-FTIR spectroscopy: implications for hydrocarbon source evaluation},
  series = {International journal of coal geology},
  volume    = {Vol. 115},
  journal   = {International journal of coal geology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-7840 (E-Journal); 0166-5162 (Print)},
  pages     = {13 -- 23},
  year      = {2013},
  language  = {en}
}
@inproceedings{TakenagaHerreraWerneretal.2013,
  author    = {Takenaga, Shoko and Herrera, Cony F. and Werner, Frederik and Biselli, Manfred and Schnitzler, Thomas and Sch{\"o}ning, Michael Josef and {\"O}hlschl{\"a}ger, Peter and Wagner, Torsten},
  title     = {Detection of the metabolic activity of cells by differential measurements based on a single light-addressable potentiometric sensor chip},
  series = {11. Dresdner Sensor-Symposium : 9.-11.12.2013},
  booktitle = {11. Dresdner Sensor-Symposium : 9.-11.12.2013},
  organization    = {Dresdner Sensor-Symposium <11, 2013>},
  isbn      = {978-3-9813484-5-3},
  pages     = {63 -- 67},
  year      = {2013},
  language  = {en}
}
@article{MartinezJakobTuetal.2013,
  author    = {Martinez, Ronny and Jakob, Felix and Tu, Ran and Siegert, Petra and Maurer, Karl-Heinz and Schwaneberg, Ulrich},
  title     = {Increasing activity and thermal resistance of Bacillus gibsonii alkaline protease (BgAP) by directed evolution},
  series = {Biotechnology and bioengineering},
  volume    = {Vol. 110},
  journal   = {Biotechnology and bioengineering},
  number    = {Iss. 3},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1097-0290 (E-Journal); 0006-3592 (Print); 0368-1467 (Print)},
  pages     = {711 -- 720},
  year      = {2013},
  language  = {en}
}
@article{JakobMartinezMandaweetal.2013,
  author    = {Jakob, Felix and Martinez, Ronny and Mandawe, John and Hellmuth, Hendrik and Siegert, Petra and Maurer, Karl-Heinz and Schwaneberg, Ulrich},
  title     = {Surface charge engineering of a Bacillus gibsonii subtilisin protease},
  series = {Applied microbiology and biotechnology},
  volume    = {Vol. 97},
  journal   = {Applied microbiology and biotechnology},
  number    = {Iss. 15},
  publisher = {Springer},
  address   = {Berlin},
  issn      = {1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print)},
  pages     = {6793 -- 6802},
  year      = {2013},
  language  = {en}
}
@article{ScheerSnaithWolfetal.2013,
  author    = {Scheer, Nico and Snaith, Mike and Wolf, C. Roland and Seibler, Jost},
  title     = {Generation and utility of genetically humanized mouse models},
  series = {Drug Discovery Today},
  volume    = {Vol 18},
  journal   = {Drug Discovery Today},
  number    = {23-24},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1359-6446},
  doi       = {10.1016/j.drudis.2013.07.007},
  pages     = {1200 -- 1211},
  year      = {2013},
  language  = {en}
}
@article{BouwmanGuldenHeijdenetal.2013,
  author    = {Bouwman, Peter and Gulden, Hanneke van der and Heijden, Ingrid van der and Drost, Rinske and Klijn, Christiaan N. and Prasetyanti, Pramudita and Pieterse, Mark and Wientjens, Ellen and Seibler, Jost and Hogervorst, Frank B. L. and Jonkers, Jos},
  title     = {A High-Throughput Functional Complementation Assay for Classification of BRCA1 Missense Variants},
  series = {Cancer Discovery},
  journal   = {Cancer Discovery},
  number    = {3},
  issn      = {2159-8290},
  doi       = {10.1158/2159-8290.CD-13-0094},
  pages     = {1142 -- 1152},
  year      = {2013},
  language  = {en}
}
@article{MichalakNacerddinePietersenetal.2013,
  author    = {Michalak, Ewa Malgorzata and Nacerddine, Karim and Pietersen, Alexandra and Beuger, Vincent and Pawlitzky, Inka and Cornelissen-Steijger, Paulien and Wientjens, Ellen and Tanger, Ellen and Seibler, Jost and Lohuizen, Maarten van and Jonkers, Jos},
  title     = {Polycomb group gene Ezh2 regulates mammary gland morphogenesis and maintains the luminal progenitor pool},
  series = {Stem Cells},
  volume    = {Vol 31},
  journal   = {Stem Cells},
  number    = {9},
  publisher = {Oxford University Press},
  address   = {Oxford},
  issn      = {1549-4918},
  doi       = {10.1002/stem.1437},
  pages     = {1910 -- 1920},
  year      = {2013},
  language  = {en}
}
@article{GebeshuberKornauthDongetal.2013,
  author    = {Gebeshuber, Christoph A. and Kornauth, Christoph and Dong, Lihua and Sierig, Ralph and Seibler, Jost and Reiss, Martina and Tauber, Stefanie and Bilban, Martin and Wang, Shijun and Kain, Renate and B{\"o}hmig, Georg A. and Moeller, Marcus J. and Gr{\"o}ne, Hermann-Josef and Englert, Christoph and Martinez, Javier and Kerjaschki, Dontscho},
  title     = {Focal segmental glomerulosclerosis is induced by microRNA-193a and its downregulation of WT1},
  series = {Nature Medicine},
  volume    = {19},
  journal   = {Nature Medicine},
  number    = {4},
  issn      = {1078-8956},
  doi       = {10.1038/nm.3142},
  pages     = {481 -- 487},
  year      = {2013},
  language  = {en}
}
@article{KornfeldBaitzelKoenneretal.2013,
  author    = {Kornfeld, Jan-Wilhelm and Baitzel, Catherina and K{\"o}nner, A. Christine and Nicholls, Hayley T. and Vogt, Merly C. and Herrmanns, Karolin and Scheja, Ludger and Haumaitre, C{\´e}cile and Wolf, Anna M. and Knippschild, Uwe and Seibler, Jost and Cereghini, Silvia and Heeren, Joerg and Stoffel, Markus and Br{\"u}ning, Jens C.},
  title     = {Obesity-induced overexpression of miR-802 impairs glucose metabolism through silencing of Hnf1b},
  series = {Nature},
  volume    = {494},
  journal   = {Nature},
  number    = {7435},
  publisher = {Springer Nature},
  address   = {Cham},
  isbn      = {0028-0836},
  doi       = {10.1038/nature11793},
  pages     = {111 -- 115},
  year      = {2013},
  language  = {en}
}
@article{WiegandVoigtAlbrechtetal.2013,
  author    = {Wiegand, Sandra and Voigt, Birgit and Albrecht, Dirk and Bongaerts, Johannes and Evers, Stefan and Hecker, Michael and Daniel, Rolf and Liesegang, Heiko},
  title     = {Fermentation stage-dependent adaptations of Bacillus licheniformis during enzyme production},
  series = {Microbial Cell Factories},
  volume    = {12},
  journal   = {Microbial Cell Factories},
  publisher = {Biomed Central},
  address   = {London},
  issn      = {1475-2859},
  doi       = {10.1186/1475-2859-12-120},
  pages     = {120},
  year      = {2013},
  language  = {en}
}
@article{ThielTippkoetterSucketal.2013,
  author    = {Thiel, Alexander and Tippk{\"o}tter, Nils and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland},
  title     = {New zeolite adsorbents for downstream processing of polyphenols from renewable resources},
  series = {Engineering in Life Sciences},
  volume    = {13},
  journal   = {Engineering in Life Sciences},
  number    = {3},
  publisher = {Wiley},
  address   = {Weinheim},
  doi       = {10.1002/elsc.201200188},
  pages     = {239 -- 246},
  year      = {2013},
  abstract  = {Commercial materials with polyvinylpolypyrrolidone and polymeric amberlites (XAD7HP, XAD16) are commonly used for the adsorptive downstream processing of polyphenols from renewable resources. In this study, beta-zeolite-based adsorbent systems were examined, and their properties were compared to organic resins. Batch adsorption experiments were conducted with synthetic solutions of major polyphenols. Adsorption isotherms and desorption characteristics of individual adsorbent were determined based on these results. Maximum adsorption capacities were calculated using the Langmuir model. For example, the zeolites had capacities up to 203.2 mg/g for ferulic acid. To extend these results to a complex system, additional experiments were performed on rapeseed meal and wheat seed extracts as representative renewable resources. HPLC analysis showed that with 7.5\% w/v, which is regarded as the optimum amount of zeolites, zeolites A and B could bind 100\% of the major polyphenols as well as release polyphenols at high yields. Additionally, regeneration experiments were performed with isopropyl alcohol at 99°C to evaluate how zeolites regenerate under mild conditions. The results showed only a negligible loss of adsorption capacity and no loss of desorption capacity. In summary, it was concluded that beta-zeolites were promising adsorbents for developing new processes to isolate polyphenols from renewable resources.},
  language  = {en}
}
@article{TippkoetterAlKaidyWollnyetal.2013,
  author    = {Tippk{\"o}tter, Nils and Al-Kaidy, Huschyar and Wollny, Steffen and Ulber, Roland},
  title     = {Functionalized magnetizable particles for downstream processing in single-use systems},
  series = {Chemie Ingenieur Technik},
  volume    = {85},
  journal   = {Chemie Ingenieur Technik},
  number    = {1-2: Special Issue: Single-Use Technology},
  publisher = {Wiley},
  address   = {Weinheim},
  doi       = {10.1002/cite.201200130},
  pages     = {76 -- 86},
  year      = {2013},
  abstract  = {Biotechnological downstream processing is usually an elaborate procedure, requiring a multitude of unit operations to isolate the target component. Besides the disadvantageous space-time yield, the risks of cross-contaminations and product loss grow fast with the complexity of the isolation procedure. A significant reduction of unit operations can be achieved by application of magnetic particles, especially if these are functionalized with affinity ligands. As magnetic susceptible materials are highly uncommon in biotechnological processes, target binding and selective separation of such particles from fermentation or reactions broths can be done in a single step. Since the magnetizable particles can be produced from iron salts and low priced polymers, a single-use implementation of these systems is highly conceivable. In this article, the principles of magnetizable particles, their synthesis and functionalization are explained. Furthermore, applications in the area of reaction engineering, microfluidics and downstream processing are discussed focusing on established single-use technologies and development potential.},
  language  = {en}
}
@misc{AlKaidyTippkoetterUlber2013,
  author    = {Al-Kaidy, Huschyar and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {A system and a method for the implementation of chemical, biological or physical reactions [Europ{\"a}ische Patentanmeldung]},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {Den Hague},
  pages     = {16 Seiten},
  year      = {2013},
  abstract  = {The invention relates to a system for the implementation of chemical, biological or physical reactions, consisting of - one or more magnetic micro-reactors, each comprising a shell made of hydrophobic magnetic nanoparticles encapsulating an aqueous core, - a plane platform comprising a surface to receive the micro-reactors, - a source that generates a magnetic field above or underneath the platform for manipulating the one or more hydrophobic magnetic micro-reactors, or for moving them along the surface of the platform from one position to another position, characterized in that the aqueous core of the one or more magnetic micro-reactors contains a reaction solution or buffer, and wherein the magnetic field generated by the source correlates to a defined position on the surface of the platform.},
  language  = {en}
}
@misc{StadtmuellerTippkoetterUlber2013,
  author    = {Stadtm{\"u}ller, Ralf and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {A method for production of single-stranded nucleic acids [Europ{\"a}ische Patentanmeldung]},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {Den Hague},
  pages     = {14 Seiten},
  year      = {2013},
  language  = {en}
}
@article{PellegriniHowellShepherdetal.2013,
  author    = {Pellegrini, Paul A. and Howell, Nicholas R. and Shepherd, Rachael K. and Lengkeek, Nigel A. and Paulßen, Elisabeth and Katsifis, Andrew G. and Greguric, Ivan},
  title     = {Synthesis and Radiolabelling of DOTA-Linked Glutamine Analogues with 67,68Ga as Markers for Increased Glutamine Metabolism in Tumour Cells},
  series = {Molecules},
  volume    = {18},
  journal   = {Molecules},
  number    = {6},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {1420-3049},
  doi       = {10.3390/molecules18067160},
  pages     = {7160 -- 7178},
  year      = {2013},
  language  = {en}
}
@article{PaulssenLeLengkeeketal.2013,
  author    = {Paulßen, Elisabeth and Le, Van So and Lengkeek, Nigel and Pellegrini, Paul and Jackson, Tim and Greguric, Ivan and Weiner, Ron},
  title     = {Influence of Metal Ions on the 68Ga-labeling of DOTATATE},
  series = {Applied Radiation and Isotopes},
  volume    = {82},
  journal   = {Applied Radiation and Isotopes},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9800},
  doi       = {10.1016/j.apradiso.2013.08.010},
  pages     = {232 -- 238},
  year      = {2013},
  language  = {en}
}
@article{ScheerWolf2013,
  author    = {Scheer, Nico and Wolf, C. Roland},
  title     = {Xenobiotic receptor humanized mice and their utility},
  series = {Drug Metabolism Reviews},
  journal   = {Drug Metabolism Reviews},
  number    = {1},
  publisher = {Taylor \& Francis},
  address   = {London},
  issn      = {1097-9883},
  doi       = {10.3109/03602532.2012.738687},
  pages     = {110 -- 121},
  year      = {2013},
  language  = {en}
}
@article{HuckSchiffelsHerreraetal.2013,
  author    = {Huck, Christina and Schiffels, Johannes and Herrera, Cony N. and Schelden, Maximilian and Selmer, Thorsten and Poghossian, Arshak and Baumann, Marcus and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Metabolic responses of Escherichia coli upon glucose pulses captured by a capacitive field-effect sensor},
  series = {Physica Status Solidi (A)},
  volume    = {210},
  journal   = {Physica Status Solidi (A)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0031-8965},
  doi       = {10.1002/pssa.201200900},
  pages     = {926 -- 931},
  year      = {2013},
  abstract  = {Living cells are complex biological systems transforming metabolites taken up from the surrounding medium. Monitoring the responses of such cells to certain substrate concentrations is a challenging task and offers possibilities to gain insight into the vitality of a community influenced by the growth environment. Cell-based sensors represent a promising platform for monitoring the metabolic activity and thus, the "welfare" of relevant organisms. In the present study, metabolic responses of the model bacterium Escherichia coli in suspension, layered onto a capacitive field-effect structure, were examined to pulses of glucose in the concentration range between 0.05 and 2 mM. It was found that acidification of the surrounding medium takes place immediately after glucose addition and follows Michaelis-Menten kinetic behavior as a function of the glucose concentration. In future, the presented setup can, therefore, be used to study substrate specificities on the enzymatic level and may as well be used to perform investigations of more complex metabolic responses. Conclusions and perspectives highlighting this system are discussed.},
  language  = {en}
}
@article{BaeckerRakowskiPoghossianetal.2013,
  author    = {B{\"a}cker, Matthias and Rakowski, D. and Poghossian, Arshak and Biselli, Manfred and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {Chip-based amperometric enzyme sensor system for monitoring of bioprocesses by flow-injection analysis},
  series = {Journal of Biotechnology},
  volume    = {163},
  journal   = {Journal of Biotechnology},
  number    = {4},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0168-1656},
  doi       = {10.1016/j.jbiotec.2012.03.014},
  pages     = {371 -- 376},
  year      = {2013},
  abstract  = {A microfluidic chip integrating amperometric enzyme sensors for the detection of glucose, glutamate and glutamine in cell-culture fermentation processes has been developed. The enzymes glucose oxidase, glutamate oxidase and glutaminase were immobilized by means of cross-linking with glutaraldehyde on platinum thin-film electrodes integrated within a microfluidic channel. The biosensor chip was coupled to a flow-injection analysis system for electrochemical characterization of the sensors. The sensors have been characterized in terms of sensitivity, linear working range and detection limit. The sensitivity evaluated from the respective peak areas was 1.47, 3.68 and 0.28 μAs/mM for the glucose, glutamate and glutamine sensor, respectively. The calibration curves were linear up to a concentration of 20 mM glucose and glutamine and up to 10 mM for glutamate. The lower detection limit amounted to be 0.05 mM for the glucose and glutamate sensor, respectively, and 0.1 mM for the glutamine sensor. Experiments in cell-culture medium have demonstrated a good correlation between the glutamate, glutamine and glucose concentrations measured with the chip-based biosensors in a differential-mode and the commercially available instrumentation. The obtained results demonstrate the feasibility of the realized microfluidic biosensor chip for monitoring of bioprocesses.},
  language  = {en}
}
@article{WincklerKruegerSchnitzleretal.2014,
  author    = {Winckler, Silvia and Krueger, Rolf and Schnitzler, Thomas and Zang, Werner and Fischer, Rainer and Biselli, Manfred},
  title     = {A sensitive monitoring system for mammalian cell cultivation processes: a PAT approach},
  series = {Bioprocess and biosystems engineering},
  volume    = {37},
  journal   = {Bioprocess and biosystems engineering},
  number    = {5},
  publisher = {Springer},
  address   = {Berlin, Heidelberg},
  issn      = {1615-7591 (Print) 1615-7605 (Online)},
  doi       = {10.1007/s00449-013-1062-8},
  pages     = {901 -- 912},
  year      = {2014},
  abstract  = {Biopharmaceuticals such as antibodies are produced in cultivated mammalian cells, which must be monitored to comply with good manufacturing practice. We, therefore, developed a fully automated system comprising a specific exhaust gas analyzer, inline analytics and a corresponding algorithm to precisely determine the oxygen uptake rate, carbon dioxide evolution rate, carbon dioxide transfer rate, transfer quotient and respiratory quotient without interrupting the ongoing cultivation, in order to assess its reproducibility. The system was verified using chemical simulation experiments and was able to measure the respiratory activity of hybridoma cells and DG44 cells (derived from Chinese hamster ovary cells) with satisfactory results at a minimum viable cell density of ~2.0 × 10⁵ cells ml⁻¹. The system was suitable for both batch and fed-batch cultivations in bubble-aerated and membrane-aerated reactors, with and without the control of pH and dissolved oxygen.},
  language  = {en}
}
@article{HeinzeMangPeteretal.2014,
  author    = {Heinze, Daniel and Mang, Thomas and Peter, Karin and M{\"o}ller, Martin and Weichold, Oliver},
  title     = {Synthesis of low molecular weight poly(vinyl acetate) and its application as plasticizer},
  series = {Journal of applied polymer science},
  volume    = {131},
  journal   = {Journal of applied polymer science},
  number    = {9},
  publisher = {Wiley},
  address   = {New York},
  issn      = {1097-4628 (E-Journal); 0021-8995 (Print)},
  doi       = {10.1002/app.40226},
  pages     = {Article No. 40226},
  year      = {2014},
  abstract  = {Poly(vinyl acetate), PVAc, with a degree of polymerization Xn = 10 was prepared by chain-transfer radical polymerization using carbon tetrachloride and used as oligomeric plasticizer for commercial PVAc. However, the chlorinated chain ends cause a low thermal stability requiring mild Cl/H substitution. The product exhibits high thermal stability and excellent melt-compounding properties. Blends of oligomeric and commercial PVAc show single glass transition temperatures which decrease with higher oligomer content and exhibit small negative deviations from Fox' linear additivity rule. This indicates plasticization and miscibility being mainly due to entropic effects. Injection-moulded thick specimens show ductile behaviour at oligomer contents >10 wt \%, while sheets with a thickness of 0.2-0.5 mm appear flexible already at 7.5 wt \%. The oxygen permeability coefficients are an order of magnitude lower than those of low-density polyethylene. Due to the sum of their properties, the plasticized sheets present a promising alternative in the preparation of barrier materials.},
  language  = {en}
}
@article{WangDruckenmuellerElbersetal.2014,
  author    = {Wang, Ren-Qi and Druckenm{\"u}ller, Katharina and Elbers, Gereon and Guenther, Klaus and Crou{\´e}, Jean-Philippe},
  title     = {Analysis of aquatic-phase natural organic matter by optimized LDI-MS method},
  series = {Journal of mass spectrometry},
  volume    = {49},
  journal   = {Journal of mass spectrometry},
  number    = {2},
  publisher = {Wiley},
  address   = {Bognor Regis},
  issn      = {1096-9888},
  doi       = {10.1002/jms.3321},
  pages     = {154 -- 160},
  year      = {2014},
  abstract  = {The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200-1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200-15 000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates. Copyright © 2014 John Wiley \& Sons, Ltd.},
  language  = {en}
}
@article{HeineHerrmannSelmeretal.2014,
  author    = {Heine, A. and Herrmann, G. and Selmer, Thorsten and Terwesten, F. and Buckel, W. and Reuter, K.},
  title     = {High resolution crystal structure of clostridium propionicum β-Alanyl-CoA:Ammonia Lyase, a new member of the "Hot Dog Fold" protein superfamily},
  series = {Proteins},
  volume    = {82},
  journal   = {Proteins},
  number    = {9},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1097-0134 (E-Journal); 0887-3585 (Print)},
  doi       = {10.1002/prot.24557},
  pages     = {2041 -- 2053},
  year      = {2014},
  abstract  = {Clostridium propionicum is the only organism known to ferment β-alanine, a constituent of coenzyme A (CoA) and the phosphopantetheinyl prosthetic group of holo-acyl carrier protein. The first step in the fermentation is a CoA-transfer to β-alanine. Subsequently, the resulting β-alanyl-CoA is deaminated by the enzyme β-alanyl-CoA:ammonia lyase (Acl) to reversibly form ammonia and acrylyl-CoA. We have determined the crystal structure of Acl in its apo-form at a resolution of 0.97 {\AA} as well as in complex with CoA at a resolution of 1.59 {\AA}. The structures reveal that the enyzme belongs to a superfamily of proteins exhibiting a so called "hot dog fold" which is characterized by a five-stranded antiparallel β-sheet with a long α-helix packed against it. The functional unit of all "hot dog fold" proteins is a homodimer containing two equivalent substrate binding sites which are established by the dimer interface. In the case of Acl, three functional dimers combine to a homohexamer strongly resembling the homohexamer formed by YciA-like acyl-CoA thioesterases. Here, we propose an enzymatic mechanism based on the crystal structure of the Acl·CoA complex and molecular docking. Proteins 2014; 82:2041-2053. © 2014 Wiley Periodicals, Inc.},
  language  = {en}
}
@article{TakenagaBiselliSchnitzleretal.2014,
  author    = {Takenaga, Shoko and Biselli, Manfred and Schnitzler, Thomas and {\"O}hlschl{\"a}ger, Peter and Wagner, Torsten and Sch{\"o}ning, Michael Josef},
  title     = {Toward multi-analyte bioarray sensors: LAPS-based on-chip determination of a Michaelis-Menten-like kinetics for cell culturing},
  series = {Physica status solidi A : Applications and materials science},
  volume    = {211},
  journal   = {Physica status solidi A : Applications and materials science},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1521-396X (E); 1862-6319 (E-Journal); 0031-8965 (Print); 1862-6300 (Print)},
  doi       = {10.1002/pssa.201330464},
  pages     = {1410 -- 1415},
  year      = {2014},
  abstract  = {The metabolic activity of Chinese hamster ovary (CHO) cells was observed using a light-addressable potentiometric sensor (LAPS). The dependency toward different glucose concentrations (17-200 mM) follows a Michaelis-Menten kinetics trajectory with Kₘ = 32.8 mM, and the obtained Kₘ value in this experiment was compared with that found in literature. In addition, the pH shift induced by glucose metabolism of tumor cells transfected with the HPV-16 genome (C3 cells) was successfully observed. These results indicate the possibility to determine the tumor cells metabolism with a LAPS-based measurement device.},
  language  = {en}
}
@article{WhiteheadOehlschlaegerAlmajhdietal.2014,
  author    = {Whitehead, Mark and {\"O}hlschl{\"a}ger, Peter and Almajhdi, Fahad N. and Alloza, Leonor and Marz{\´a}bal, Pablo and Meyers, Ann E. and Hitzeroth, Inga I. and Rybicki, Edward P.},
  title     = {Human papillomavirus (HPV) type 16 E7 protein bodies cause tumour regression in mice},
  series = {BMC cancer},
  journal   = {BMC cancer},
  number    = {14:367},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {1471-2407},
  doi       = {10.1186/1471-2407-14-367},
  pages     = {1 -- 15},
  year      = {2014},
  language  = {en}
}
@article{KueppersSteffenHellmuthetal.2014,
  author    = {K{\"u}ppers, Tobias and Steffen, Victoria and Hellmuth, Hendrik and O'Connell, Timothy and Bongaerts, Johannes and Maurer, Karl-Heinz and Wiechert, Wolfgang},
  title     = {Developing a new production host from a blueprint: Bacillus pumilus as an industrial enzyme producer},
  series = {Microbial cell factories},
  volume    = {13},
  journal   = {Microbial cell factories},
  publisher = {BioMed Central},
  address   = {London},
  issn      = {1475-2859 (E-Journal)},
  doi       = {10.1186/1475-2859-13-46},
  pages     = {Article No. 46},
  year      = {2014},
  language  = {en}
}
@article{GuoMiyamotoWagneretal.2014,
  author    = {Guo, Yuanyuan and Miyamoto, Ko-ichiro and Wagner, Torsten and Sch{\"o}ning, Michael Josef and Yoshinobu, Tatsuo},
  title     = {Theoretical study and simulation of light-addressable potentiometric sensors},
  series = {Physica status solidi (A) : applications and materials},
  volume    = {211},
  journal   = {Physica status solidi (A) : applications and materials},
  number    = {6},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0031-8965},
  doi       = {10.1002/pssa.201330354},
  pages     = {1467 -- 1472},
  year      = {2014},
  abstract  = {The light-addressable potentiometric sensor (LAPS) is a semiconductor-based potentiometric sensor using a light probe with an ability of detecting the concentration of biochemical species in a spatially resolved manner. As an important biomedical sensor, research has been conducted to improve its performance, for instance, to realize high-speed measurement. In this work, the idea of facilitating the device-level simulation, instead of using an equivalent-circuit model, is presented for detailed analysis and optimization of the performance of the LAPS. Both carrier distribution and photocurrent response have been simulated to provide new insight into both amplitude-mode and phase-mode operations of the LAPS. Various device parameters can be examined to effectively design and optimize the LAPS structures and setups for enhanced performance.},
  language  = {en}
}
@article{RatkeMilowLisinskietal.2014,
  author    = {Ratke, Lorenz and Milow, Barbara and Lisinski, Susanne and Hoepfner, Sandra},
  title     = {On an effect of fine ceramic particles on the structure of aerogels},
  series = {Microgravity science and technology},
  volume    = {26},
  journal   = {Microgravity science and technology},
  publisher = {Springer Nature},
  address   = {Heidelberg},
  issn      = {0938-0108 ; 1875-0494},
  doi       = {10.1007/s12217-014-9380-2},
  pages     = {103 -- 110},
  year      = {2014},
  language  = {en}
}
@article{HandtkeVollandMethlingetal.2014,
  author    = {Handtke, Stefan and Volland, Sonja and Methling, Karen and Albrecht, Dirk and Becher, D{\"o}rte and Nehls, Jenny and Bongaerts, Johannes and Maurer, Karl-Heinz and Lalk, Michael and Liesegang, Heiko and Voigt, Birgit and Daniel, Rolf and Hecker, Michael},
  title     = {Cell physiology of the biotechnological relevant bacterium Bacillus pumilus - An omics-based approach},
  series = {Journal of Biotechnology},
  journal   = {Journal of Biotechnology},
  number    = {192(A)},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1873-4863 (E-Journal); 0168-1656 (Print)},
  doi       = {10.1016/j.jbiotec.2014.08.028},
  pages     = {204 -- 214},
  year      = {2014},
  abstract  = {Members of the species Bacillus pumilus get more and more in focus of the biotechnological industry as potential new production strains. Based on exoproteome analysis, B. pumilus strain Jo2, possessing a high secretion capability, was chosen for an omics-based investigation. The proteome and metabolome of B. pumilus cells growing either in minimal or complex medium was analyzed. In total, 1542 proteins were identified in growing B. pumilus cells, among them 1182 cytosolic proteins, 297 membrane and lipoproteins and 63 secreted proteins. This accounts for about 43\% of the 3616 proteins encoded in the B. pumilus Jo2 genome sequence. By using GC-MS, IP-LC/MS and H NMR methods numerous metabolites were analyzed and assigned to reconstructed metabolic pathways. In the genome sequence a functional secretion system including the components of the Sec- and Tat-secretion machinery was found. Analysis of the exoproteome revealed secretion of about 70 proteins with predicted secretion signals. In addition, selected production-relevant genome features such as restriction modification systems and NRPS clusters of B. pumilus Jo2 are discussed.},
  language  = {en}
}
@article{NachtrodtTietschMostaccietal.2014,
  author    = {Nachtrodt, Frederik and Tietsch, Wolfgang and Mostacci, Domiziano and Scherer, Ulrich W.},
  title     = {Set-up and first operation of a plasma oven for treatment of low level radioactive wastes},
  series = {Nuclear technology and radiation protection},
  volume    = {29},
  journal   = {Nuclear technology and radiation protection},
  number    = {Suppl.},
  publisher = {VINČA Institute of Nuclear Sciences},
  address   = {Belgrad},
  issn      = {1451-3994},
  doi       = {10.2298/NTRP140SS47N},
  pages     = {47 -- 51},
  year      = {2014},
  language  = {en}
}
@article{RaueWambachGloeggleretal.2014,
  author    = {Raue, Markus and Wambach, M. and Gl{\"o}ggler, S. and Grefen, Dana and Kaufmann, R. and Abetz, C. and Georgopanos, P. and Handge, U. A. and Mang, Thomas and Bl{\"u}mich, B. and Abetz, V.},
  title     = {Investigation of historical hard rubber ornaments of Charles Goodyear},
  series = {Macromolecular chemistry and physics},
  volume    = {Vol. 215},
  journal   = {Macromolecular chemistry and physics},
  number    = {No. 3},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1022-1352},
  pages     = {245 -- 254},
  year      = {2014},
  language  = {en}
}
@article{PasteurTippkoetterKampeisetal.2014,
  author    = {Pasteur, Aline and Tippk{\"o}tter, Nils and Kampeis, Percy and Ulber, Roland},
  title     = {Optimization of high gradient magnetic separation filter units for the purification of fermentation products},
  series = {IEEE TRANSACTIONS ON MAGNETICS},
  volume    = {50},
  journal   = {IEEE TRANSACTIONS ON MAGNETICS},
  number    = {10},
  publisher = {IEEE},
  address   = {New York, NY},
  issn      = {0018-9464},
  doi       = {10.1109/TMAG.2014.2325535},
  pages     = {Artikel 5000607},
  year      = {2014},
  abstract  = {High gradient magnetic separation (HGMS) has been established since the early 1970s. A more recent application of these systems is the use in bioprocesses. To integrate the HGMS in a fermentation process, it is necessary to optimize the separation matrix with regard to the magnetic separation characteristics and permeability of the non-magnetizable components of the fermentation broth. As part of the work presented here, a combined fluidic and magnetic force finite element model simulation was created using the software COMSOL Multiphysics and compared with separation experiments. Finally, as optimal lattice orientation of the separation matrix, a transversal rhombohedral arrangement was defined. The high suitability of the new filter matrix has been verified by separation experiments.},
  language  = {en}
}
@article{TippkoetterWollnySucketal.2014,
  author    = {Tippk{\"o}tter, Nils and Wollny, Steffen and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland},
  title     = {Recycling of spent oil bleaching earth as source of glycerol for the anaerobic production of acetone, butanol, and ethanol with Clostridium diolis and lipolytic Clostridium lundense},
  series = {Engineering in Life Sciences},
  volume    = {14},
  journal   = {Engineering in Life Sciences},
  number    = {4},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1618-2863},
  doi       = {10.1002/elsc.201300113},
  pages     = {425 -- 432},
  year      = {2014},
  abstract  = {A major part of edible oil is subjected to bleaching procedures, primarily with minerals applied as adsorbers. Their recycling is currently done either by regaining the oil via organic solvent extraction or by using the spent bleaching earth (SBE) as additive for animal feed, etc. As a new method, the reutilization of the by-product SBE for the microbiologic formation of acetone, butanol, and ethanol (ABE) is presented as proof-of-concept. The SBE was taken from a palm oil cleaning process. The recycling concept is based on the application of lipolytic clostridia strains. Due to considerably long fermentation times, co-fermentation with Candida rugosa and enzymatic hydrolyses of the bound oil with a subsequent clostridia fermentation are shown as alternative routes. Anaerobic fermentations under comparison of different clostridia strains were performed with glycerol media, enzymatically hydrolyzed palm oil and SBE. Solutes, side product compositions and productivities were quantified via HPLC. A successful production of ABE solutes from SBE has been done with a yield of 0.15 g butanol per gram of bound glycerol. Thus, the biotechnological recycling of the waste stream is possible in principle. Inhibition of the substrate suspension has been observed. A chromatographic ion-exchange of substrates increased the biomass concentration.},
  language  = {en}
}
@article{TippkoetterDuweWiesenetal.2014,
  author    = {Tippk{\"o}tter, Nils and Duwe, Anna-Maria and Wiesen, Sebastian and Sieker, Tim and Ulber, Roland},
  title     = {Enzymatic hydrolysis of beech wood lignocellulose at high solid contents and its utilization as substrate for the production of biobutanol and dicarboxylic acids},
  series = {Bioresource Technology},
  volume    = {167},
  journal   = {Bioresource Technology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.biortech.2014.06.052},
  pages     = {447 -- 455},
  year      = {2014},
  abstract  = {The development of a cost-effective hydrolysis for crude cellulose is an essential part of biorefinery developments. To establish such high solid hydrolysis, a new solid state reactor with static mixing is used. However, concentrations >10\% (w/w) cause a rate and yield reduction of enzymatic hydrolysis. By optimizing the synergetic activity of cellulolytic enzymes at solid concentrations of 9\%, 17\% and 23\% (w/w) of crude Organosolv cellulose, glucose concentrations of 57, 113 and 152 g L⁻¹ are reached. However, the glucose yield decreases from 0.81 to 0.72gg⁻¹ at 17\% (w/w). Optimal conditions for hydrolysis scale-up under minimal enzyme addition are identified. As result, at 23\% (w/w) crude cellulose the glucose yield increases from 0.29 to 0.49gg⁻¹. As proof of its applicability, biobutanol, succinic and itaconic acid are produced with the crude hydrolysate. The potential of the substrate is proven e.g. by a high butanol yield of 0.33gg⁻¹.},
  language  = {en}
}
@article{HoehrPaulssenBenardetal.2014,
  author    = {Hoehr, Cornelia and Paulßen, Elisabeth and Benard, Francois and Lee, Chris Jaeil and Hou, Xinchi and Badesso, Brian and Ferguson, Simon and Miao, Qing and Yang, Hua and Buckley, Ken and Hanemaayer, Victoire and Zeisler, Stefan and Ruth, Thomas and Celler, Anna and Schaffer, Paul},
  title     = {⁴⁴ᶢSc production using a water target on a 13 MeV cyclotron},
  series = {Nuclear medicine and biology},
  volume    = {41},
  journal   = {Nuclear medicine and biology},
  number    = {5},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9614},
  doi       = {10.1016/j.nucmedbio.2013.12.016},
  pages     = {401 -- 406},
  year      = {2014},
  abstract  = {Access to promising radiometals as isotopes for novel molecular imaging agents requires that they are routinely available and inexpensive to obtain. Proximity to a cyclotron center outfitted with solid target hardware, or to an isotope generator for the metal of interest is necessary, both of which can introduce significant hurdles in development of less common isotopes. Herein, we describe the production of ⁴⁴Sc (t₁⸝₂ = 3.97 h, Eavg,β⁺ = 1.47 MeV, branching ratio = 94.27\%) in a solution target and an automated loading system which allows a quick turn-around between different radiometallic isotopes and therefore greatly improves their availability for tracer development. Experimental yields are compared to theoretical calculations.},
  language  = {en}
}