@inproceedings{TippkoetterRoikaewUlber2008,
  author    = {Tippk{\"o}tter, Nils and Roikaew, W. and Ulber, R.},
  title     = {An automated pilot plant for the bioengineering processing of concentrated whey},
  series = {European BioPerspectives : in cooperation with BIOTECHNICA 2008 : 7 - 9 October 2008 Hannover, Germany ; book of abstracts ; abstracts, poster programme},
  booktitle = {European BioPerspectives : in cooperation with BIOTECHNICA 2008 : 7 - 9 October 2008 Hannover, Germany ; book of abstracts ; abstracts, poster programme},
  publisher = {Dechema},
  address   = {Frankfurt am Main},
  pages     = {98},
  year      = {2008},
  language  = {en}
}
@article{TippkoetterRoikaewUlberetal.2010,
  author    = {Tippk{\"o}tter, Nils and Roikaew, Wipa and Ulber, Roland and Hoffmann, Alexander and Denzler, Hans-J{\"o}rg and Buchholz, Heinrich},
  title     = {Paracoccus denitrificans for the effluent recycling during continuous denitrification of liquid food},
  series = {Biotechnology Progress},
  volume    = {26},
  journal   = {Biotechnology Progress},
  number    = {3},
  publisher = {Wiley},
  address   = {Hoboken, NJ},
  issn      = {8756-7938},
  doi       = {10.1002/btpr.384},
  pages     = {756 -- 762},
  year      = {2010},
  abstract  = {Nitrate is an undesirable component of several foods. A typical case of contamination with high nitrate contents is whey concentrate, containing nitrate in concentrations up to 25 l. The microbiological removal of nitrate by Paracoccus denitrificans under formation of harmless nitrogen in combination with a cell retention reactor is described here. Focus lies on the resource-conserving design of a microbal denitrification process. Two methods are compared. The application of polyvinyl alcohol-immobilized cells, which can be applied several times in whey feed, is compared with the implementation of a two step denitrification system. First, the whey concentrate's nitrate is removed by ion exchange and subsequently the eluent regenerated by microorganisms under their retention by crossflow filtration. Nitrite and nitrate concentrations were determined by reflectometric color measurement with a commercially available Reflectoquant® device. Correction factors for these media had to be determined. During the pilot development, bioreactors from 4 to 250 mg·L-1 and crossflow units with membrane areas from 0.02 to 0.80 m2 were examined. Based on the results of the pilot plants, a scaling for the exemplary process of denitrifying 1,000 tons per day is discussed.},
  language  = {en}
}
@article{TippkoetterRoth2020,
  author    = {Tippk{\"o}tter, Nils and Roth, Jasmine},
  title     = {Purified Butanol from Lignocellulose - Solvent-Impregnated Resins for an Integrated Selective Removal},
  series = {Chemie Ingenieur Technik},
  volume    = {92},
  journal   = {Chemie Ingenieur Technik},
  number    = {11},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1522-2640},
  doi       = {10.1002/cite.202000200},
  pages     = {1741 -- 1751},
  year      = {2020},
  abstract  = {In traditional microbial biobutanol production, the solvent must be recovered during fermentation process for a sufficient space-time yield. Thermal separation is not feasible due to the boiling point of n-butanol. As an integrated and selective solid-liquid separation alternative, solvent impregnated resins (SIRs) were applied. Two polymeric resins were evaluated and an extractant screening was conducted. Vacuum application with vapor collection in fixed-bed column as bioreactor bypass was successfully implemented as butanol desorption step. In course of further increasing process economics, fermentation with renewable lignocellulosic substrates was conducted using Clostridium acetobutylicum. Utilization of SIR was shown to be a potential strategy for solvent removal from fermentation broth, while application of a bypass column allows for product removal and recovery at once.},
  language  = {en}
}
@inproceedings{TippkoetterSchuenemannChristmannetal.2008,
  author    = {Tippk{\"o}tter, Nils and Sch{\"u}nemann, V. and Christmann, R. and Pasteur, A. and Schweizer, J. and Ulber, R.},
  title     = {Bioaffinity Layering magnetisierbarer Mikro- und Nanopartikel},
  series = {Technische Systeme f{\"u}r die Lebenswissenschaften : 14. Heiligenst{\"a}dter Kolloquium, Heilbad Heiligenstadt, 22.09. - 24.09.2008},
  booktitle = {Technische Systeme f{\"u}r die Lebenswissenschaften : 14. Heiligenst{\"a}dter Kolloquium, Heilbad Heiligenstadt, 22.09. - 24.09.2008},
  editor    = {Beckmann, Dieter},
  address   = {Heiligenstadt},
  isbn      = {978-3-00-025695-0},
  pages     = {97 -- 98},
  year      = {2008},
  language  = {de}
}
@inproceedings{TippkoetterStueckmannWinkelmannetal.2007,
  author    = {Tippk{\"o}tter, Nils and St{\"u}ckmann, H. and Winkelmann, G. and Noack, U. and Beutel, S. and Scheper, T. and Ulber, R.},
  title     = {Optimisation of antibody-labelling of gold colloids for their application in an immunchromatographic assay for microcystin-LR},
  series = {European BioPerspectives : celebrating the 25th DECHEMA annual convention of biotechnologists ; 30 May - 1 June 2007, Cologne, Germany ; book of abstracts ; abstracts, poster programme},
  booktitle = {European BioPerspectives : celebrating the 25th DECHEMA annual convention of biotechnologists ; 30 May - 1 June 2007, Cologne, Germany ; book of abstracts ; abstracts, poster programme},
  publisher = {Dechema},
  address   = {Frankfurt am Main},
  pages     = {126},
  year      = {2007},
  language  = {en}
}
@article{TippkoetterStueckmannKrolletal.2009,
  author    = {Tippk{\"o}tter, Nils and St{\"u}ckmann, Henning and Kroll, Stephen and Winkelmann, Gunda and Noack, Udo and Scheper, Thomas and Ulber, Roland},
  title     = {A semi-quantitative dipstick assay for microcystin},
  series = {Analytical and Bioanalytical Chemistry},
  volume    = {394},
  journal   = {Analytical and Bioanalytical Chemistry},
  number    = {3},
  publisher = {springer},
  address   = {Berlin},
  issn      = {1618-2650},
  doi       = {10.1007/s00216-009-2750-8},
  pages     = {863 -- 869},
  year      = {2009},
  abstract  = {An immunochromatographic lateral flow dipstick assay for the fast detection of microcystin-LR was developed. Colloid gold particles with diameters of 40 nm were used as red-colored antibody labels for the visual detection of the antigen. The new dipstick sensor is capable of detecting down to 5 µg·l-1 (ppb; total inversion of the color signal) or 1 ppb (observation of color grading) of microcystin-LR. The course of the labeling reaction was observed via spectrometric wave shifts caused by the change of particle size during the binding of antibodies. Different stabilizing reagents showed that especially bovine serum albumin (BSA) and casein increase the assays sensitivity and the conjugate stability. Performance of the dipsticks was quantified by pattern processing of capture zone CCD images. Storage stability of dipsticks and conjugate suspensions over 115 days under different conditions were monitored. The ready-to-use dipsticks were successfully tested with microcystin-LR-spiked samples of outdoor drinking- and salt water and applied to the tissue of microcystin-fed mussels.},
  language  = {en}
}
@techreport{TippkoetterWagner2019,
  author    = {Tippk{\"o}tter, Nils and Wagner, Sebastian},
  title     = {Biomimetischer Klebstoff aus ligninhaltigen Pflanzenresten (Teilvorhaben 1 und 2) : Schlussbericht zum Vorhaben : Laufzeit: 01.01.2016 bis 31.03.2019},
  publisher = {FH Aachen},
  address   = {J{\"u}lich},
  doi       = {10.2314/KXP:169732777X},
  pages     = {109 S.},
  year      = {2019},
  language  = {de}
}
@article{TippkoetterWollnyKampeisetal.2011,
  author    = {Tippk{\"o}tter, Nils and Wollny, S. and Kampeis, P. and Oster, J. and Schneider, H. and Ulber, R.},
  title     = {Magnetseparation von Proteinen : Separation von Zielmolek{\"u}len durch hochselektive Aptamere},
  series = {GIT Labor-Fachzeitschrift},
  volume    = {55},
  journal   = {GIT Labor-Fachzeitschrift},
  number    = {10},
  publisher = {Wiley},
  address   = {Weinheim},
  pages     = {666},
  year      = {2011},
  abstract  = {Durch die Kombination von Oligonukleotid-Liganden (Aptameren) hoher Bindungsaffinit{\"a}ten mit hochselektiv abtrennbaren magnetisierbaren Mikropartikeln wird eine einstufige Separation von Zielmolek{\"u}len aus mikrobiologischen Produktionsans{\"a}tzen m{\"o}glich. Die Aptamere werden hierf{\"u}r reversibel auf den Partikeloberfl{\"a}chen gebunden und f{\"u}r die spezifische Isolierung von Bioprodukten eingesetzt. Die Abtrennung der beladenen Partikel erfolgt durch einen neuen Rotor-Stator-Separator mit Hochgradient-Magnetfeld.},
  language  = {de}
}
@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{TranBongaertsVladetal.1997,
  author    = {Tran, Quang Hon and Bongaerts, Johannes and Vlad, Dorina and Unden, Gottfried},
  title     = {Requirement for the proton-pumping NADH dehydrogenase I of Escherichia coli in respiration of NADH to fumarate and its bioenergetic implications},
  series = {European journal of biochemistry},
  volume    = {Vol. 244},
  journal   = {European journal of biochemistry},
  number    = {Iss. 1},
  issn      = {0014-2956},
  pages     = {155 -- 160},
  year      = {1997},
  language  = {en}
}
@article{TrappLammersEngudaretal.2023,
  author    = {Trapp, Svenja and Lammers, Tom and Engudar, Gokce and Hoehr, Cornelia and Denkova, Antonia G. and Paulßen, Elisabeth and de Kruijff, Robin M.},
  title     = {Membrane-based microfluidic solvent extraction of Ga-68 from aqueous Zn solutions: towards an automated cyclotron production loop},
  series = {EJNMMI Radiopharmacy and Chemistry},
  volume    = {2023},
  journal   = {EJNMMI Radiopharmacy and Chemistry},
  number    = {8, Article number: 9},
  publisher = {Springer Nature},
  issn      = {2365-421X},
  doi       = {10.1186/s41181-023-00195-2},
  pages     = {1 -- 14},
  year      = {2023},
  language  = {en}
}
@article{TurckBerndt1981,
  author    = {Turck, Christoph W. and Berndt, Heinz},
  title     = {Synthese definierter Peptid-Derivate durch Aminolyse von 3-(Nα-Acyl-peptidyloxy)-2-hydroxy-N-alkylbenzamiden bei erh{\"o}hten Temperaturen, I : Synthese des Modellpeptid-Derivates Z-Ala-Phe-Gly-N(Et)2},
  series = {Hoppe-Seyler´s Zeitschrift f{\"u}r physiologische Chemie},
  volume    = {362},
  journal   = {Hoppe-Seyler´s Zeitschrift f{\"u}r physiologische Chemie},
  number    = {1},
  issn      = {1437-4315},
  doi       = {10.1515/bchm2.1981.362.1.821},
  pages     = {821 -- 828},
  year      = {1981},
  language  = {de}
}
@article{TurekKettererClassenetal.2007,
  author    = {Turek, Monika and Ketterer, Lothar and Claßen, Melanie and Berndt, Heinz and Elbers, Gereon and Kr{\"u}ger, Peter and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Development and Electrochemical Investigations of an EIS-(Electrolyte-Insulator-Semiconductor) based Biosensor for Cyanide Detection},
  series = {Sensors},
  volume    = {7},
  journal   = {Sensors},
  number    = {8},
  isbn      = {1424-8220},
  pages     = {1415 -- 1426},
  year      = {2007},
  language  = {en}
}
@article{TuegBaumann1994,
  author    = {T{\"u}g, Helmut and Baumann, Marcus},
  title     = {Problems of UV-B radiation measurements in biological research : critical remarks on current techniques and suggestions for improvements},
  series = {Geophysical research letters},
  volume    = {Vol. 21},
  journal   = {Geophysical research letters},
  number    = {Iss. 8},
  issn      = {1944-8007 (E-Journal); 0094-8276 (Print)},
  pages     = {689 -- 692},
  year      = {1994},
  language  = {en}
}
@article{TuegBaumann1995,
  author    = {T{\"u}g, Helmut and Baumann, Marcus},
  title     = {Reply to the comments by R.L. McKenzie and P.V. Johnston on our paper "Problems of UV-B radiation measurements in biological research: Critical Remarks on current techniques and suggestions for improvements"},
  series = {Geophysical research letters},
  volume    = {Vol. 22},
  journal   = {Geophysical research letters},
  number    = {Iss. 9},
  issn      = {1944-8007 (E-Journal); 0094-8276 (Print)},
  pages     = {1159 -- 1160},
  year      = {1995},
  language  = {en}
}
@article{UlberTippkoetterBuchholzetal.2008,
  author    = {Ulber, R. and Tippk{\"o}tter, Nils and Buchholz, H. and Demmer, W. and Scheper, T.},
  title     = {Innovative Verfahren in der Molkeaufarbeitung zur Gewinnung neuer Produkte},
  series = {Deutsche Milchwirtschaft},
  volume    = {59},
  journal   = {Deutsche Milchwirtschaft},
  number    = {19},
  issn      = {0012-0480},
  pages     = {704 -- 706},
  year      = {2008},
  language  = {de}
}
@incollection{UlberMufflerTippkoetteretal.2011,
  author    = {Ulber, Roland and Muffler, Kai and Tippk{\"o}tter, Nils and Hirth, Thomas and Sell, Dieter},
  title     = {Introduction to Renewable Resources in the Chemical Industry},
  series = {Renewable raw materials : new feedstocks for the chemical industry},
  booktitle = {Renewable raw materials : new feedstocks for the chemical industry},
  editor    = {Ulber, Roland and Sell, Dieter and Hirth, Thomas},
  edition   = {1. Auflage},
  publisher = {Wiley-VCH-Verlag},
  address   = {Weinheim},
  isbn      = {978-3-527-32548-1},
  pages     = {1 -- 6},
  year      = {2011},
  language  = {de}
}
@article{UlberPothMonzonetal.2010,
  author    = {Ulber, Roland and Poth, Sebastian and Monzon, Magaly and Tippk{\"o}tter, Nils},
  title     = {Prozessintegration von Hydrolyse und Fermentation von Cellulose- Faserstoff},
  series = {Chemie Ingenieur Technik},
  volume    = {82},
  journal   = {Chemie Ingenieur Technik},
  number    = {1-2},
  issn      = {1522-2640},
  doi       = {10.1002/cite.200900103},
  pages     = {135 -- 139},
  year      = {2010},
  abstract  = {Ein viel versprechender erneuerbarer Rohstoff f{\"u}r die Produktion von Chemikalien und Treibstoffen ist Lignocellulose aus pflanzlicher Biomasse. Die darin enthaltenen Zucker k{\"o}nnen mittels enzymatischer Hydrolyse freigesetzt und fermentativ zu Ethanol umgesetzt werden. Ein interessanter Ansatz ist dabei die simultane Verzuckerung und Fermentation. Hefen und Enzyme haben mit 30 °C bzw. 50 °C zwar unterschiedliche Temperaturoptima, es konnte aber gezeigt werden, dass auch bei den niedrigeren Temperaturen eine Umsetzung der Cellulose zu Glucose erfolgt, wenn auch langsamer als bei optimalen Bedingungen. Außerdem konnte in Vorversuchen gezeigt werden, dass Ethanol in den zu erwartenden Konzentrationen keinen Einfluss auf die enzymatische Umsetzung hat.},
  language  = {de}
}
@article{UlberTippkoetter2009,
  author    = {Ulber, Roland and Tippk{\"o}tter, Nils},
  title     = {Nitratfreie Molke},
  series = {Rundschau f{\"u}r Fleischhygiene und Lebensmittel{\"u}berwachung},
  journal   = {Rundschau f{\"u}r Fleischhygiene und Lebensmittel{\"u}berwachung},
  number    = {4},
  pages     = {150 -- 152},
  year      = {2009},
  language  = {de}
}
@article{UndenBeckerBongaertsetal.1995,
  author    = {Unden, G. and Becker, S. and Bongaerts, Johannes and Holighaus, G. and Schirawski, J. and Six, S.},
  title     = {O2-sensing and O2-dependent gene regulation in facultatively anaerobic bacteria},
  series = {Archives of microbiology},
  volume    = {Vol. 164},
  journal   = {Archives of microbiology},
  number    = {Iss. 2},
  issn      = {1432-072X (E-Journal); 0003-9276 (Print); 0302-8933 (Print)},
  pages     = {81 -- 90},
  year      = {1995},
  language  = {en}
}
@article{UndenBeckerBongaertsetal.1994,
  author    = {Unden, G. and Becker, S. and Bongaerts, Johannes and Schirawski, J. and Six, S.},
  title     = {Oxygen regulated gene expression in facultatively anaerobic bacteria},
  series = {Antonie van Leeuwenhoek},
  volume    = {Vol. 66},
  journal   = {Antonie van Leeuwenhoek},
  number    = {Iss. 1-3},
  issn      = {0003-6072 (Print) ; 1572-9699 (online)},
  pages     = {3 -- 22},
  year      = {1994},
  language  = {en}
}
@article{UndenBongaerts1997,
  author    = {Unden, Gottfried and Bongaerts, Johannes},
  title     = {Alternative respiratory pathways of Escherichia coli: energetics and transcriptional regulation in response to electron acceptors},
  series = {Biochimica et biophysica acta (BBA) - Bioenergetics},
  volume    = {Vol. 1320},
  journal   = {Biochimica et biophysica acta (BBA) - Bioenergetics},
  number    = {Iss. 3},
  issn      = {1879-2650 (E-Journal); 0005-2728 (Print)},
  pages     = {217 -- 234},
  year      = {1997},
  language  = {en}
}
@techreport{VaessenOhmeManderscheid2012,
  author    = {Vaeßen, Christiane and Ohme, H. and Manderscheid, D.},
  title     = {Endbericht Projekt Immotherm : Vorhabensbezeichnung: KMU-innovativ-Verbundvorhaben "Einsatz immobilisierter Mikroorganismen zur Ent{\"o}lung und Entsalzung von Kondensatwasser bei hohen Prozesstemperaturen" : Laufzeit des Vorhabens: 01.03.2009-31.08.2011 : F{\"o}rderkennzeichen: 01LY0816A, 01LY0816B, 01LY0816C},
  pages     = {71 S. : zahlr. Ill. u. graph. Darst.},
  year      = {2012},
  language  = {de}
}
@article{VoigtAlbrechtSieversetal.2015,
  author    = {Voigt, Birgit and Albrecht, Dirk and Sievers, Susanne and Becher, D{\"o}rte and Bongaerts, Johannes and Evers, Stefan and Schweder, Thomas and Maurer, Karl-Heinz and Hecker, Michael},
  title     = {High-resolution proteome maps of Bacillus licheniformis cells growing in minimal medium},
  series = {Proteomics},
  volume    = {15},
  journal   = {Proteomics},
  number    = {15},
  publisher = {Wiley},
  address   = {Weinheim},
  issn      = {1615-9861},
  doi       = {10.1002/pmic.201400504},
  pages     = {2629 -- 2633},
  year      = {2015},
  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{WackwitzBongaertsGoodmanetal.1999,
  author    = {Wackwitz, B. and Bongaerts, Johannes and Goodman, S. D. and Unden, Gottfried},
  title     = {Growth phase-dependent regulation of nuoA-N expression in Escherichia coli K-12 by the Fis protein: upstream binding sites and bioenergetic significance},
  series = {Molecular and general genetics : MGG},
  volume    = {Vol. 262},
  journal   = {Molecular and general genetics : MGG},
  number    = {Iss. 4 - 5},
  issn      = {1617-4623 (E-Journal); 1617-4615 (Print)},
  pages     = {876 -- 883},
  year      = {1999},
  language  = {en}
}
@incollection{WagemannTippkoetter2019,
  author    = {Wagemann, Kurt and Tippk{\"o}tter, Nils},
  title     = {Biorefineries: a short introduction},
  series = {Biorefineries},
  booktitle = {Biorefineries},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-97117-9},
  doi       = {10.1007/10_2017_4},
  pages     = {1 -- 11},
  year      = {2019},
  abstract  = {The terms bioeconomy and biorefineries are used for a variety of processes and developments. This short introduction is intended to provide a delimitation and clarification of the terminology as well as a classification of current biorefinery concepts. The basic process diagrams of the most important biorefinery types are shown.},
  language  = {en}
}
@book{WagemannTippkoetter2019,
  author    = {Wagemann, Kurt and Tippk{\"o}tter, Nils},
  title     = {Biorefineries / Kurt Wagemann, Nils Tippk{\"o}tter (editors)},
  series = {Advances in biochemical engineering/biotechnology book series (ABE)},
  journal   = {Advances in biochemical engineering/biotechnology book series (ABE)},
  publisher = {Springer},
  address   = {Cham (Switzerland)},
  isbn      = {978-3-319-97117-9},
  doi       = {10.1007/978-3-319-97119-3},
  pages     = {VI, 549 Seiten},
  year      = {2019},
  language  = {en}
}
@article{WagnerBegingRotteretal.2007,
  author    = {Wagner, Torsten and Beging, Stefan and Rotter, L. and Poghossian, Arshak and Biselli, Manfred and Zang, Werner and Sch{\"o}ning, Michael Josef},
  title     = {Online-Messsysteme f{\"u}r die automatisierte Charakterisierung von feldeffektbasierten Biosensoren},
  series = {8. Dresdner Sensor-Symposium : Sensoren f{\"u}r Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme f{\"u}r die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung f{\"u}r die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.)},
  journal   = {8. Dresdner Sensor-Symposium : Sensoren f{\"u}r Umwelt, Klima und Sicherheit, Biosensoren und Biosysteme, Sensoren und Sensorsysteme f{\"u}r die Prozesstechnik, Trends in der Sensortechnik, Materialentwicklung f{\"u}r die Sensorik; 8. Dresdner Sensor-Symposium, 10. - 12. Dezember 2007, Dresden / Gerald Gerlach ... (Hg.)},
  publisher = {TUDpress, Verl. der Wissenschaften},
  address   = {Dresden},
  isbn      = {978-3-940046-45-1},
  pages     = {257 -- 260},
  year      = {2007},
  language  = {de}
}
@article{WagnerMolinaBisellietal.2007,
  author    = {Wagner, Torsten and Molina, R. and Biselli, Manfred and Canzoneri, Michele and Schnitzler, Thomas and Yoshinobu, Tatsuo and Sch{\"o}ning, Michael Josef},
  title     = {A light-addressable potentiometric sensor system for fast, simultaneous and spatial detection of the metabolic activity of biological cells},
  series = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)},
  journal   = {Transducers '07 Eurosensors XXI : digest of technical papers ; the14th International Conference on Solid-State Sensors, Actuators and Microsystems, June 10-14, 2007, Lyon, France / Gilles Delapierre (Ed.)},
  publisher = {IEEE},
  address   = {Piscataway},
  isbn      = {1-4244-0841-5},
  pages     = {1107 -- 1110},
  year      = {2007},
  language  = {en}
}
@article{WagnerMolinaYoshinobuetal.2007,
  author    = {Wagner, Torsten and Molina, Roberto and Yoshinobu, Tatsuo and Kloock, Joachim P. and Biselli, Manfred and Canzoneri, Michele and Schnitzler, Thomas and Sch{\"o}ning, Michael Josef},
  title     = {Handheld multi-channel LAPS device as a transducer platform for possible biological and chemical multi-sensor applications},
  series = {Electrochimica Acta. 53 (2007), H. 2},
  journal   = {Electrochimica Acta. 53 (2007), H. 2},
  isbn      = {0013-4686},
  pages     = {305 -- 311},
  year      = {2007},
  language  = {en}
}
@article{WallerBraunHojdisetal.2007,
  author    = {Waller, Mark P. and Braun, Heiko and Hojdis, Nils and B{\"u}hl, Michael},
  title     = {Geometries of Second-Row Transition-Metal Complexes from Density-Functional Theory},
  series = {Journal of Chemical Theory and Computation},
  volume    = {3},
  journal   = {Journal of Chemical Theory and Computation},
  number    = {6},
  issn      = {1549-9626},
  doi       = {10.1021/ct700178y},
  pages     = {2234 -- 2242},
  year      = {2007},
  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{WardoyoNoorElbersetal.2020,
  author    = {Wardoyo, Arinto Y.P. and Noor, Johan A.E. and Elbers, Gereon and Schmitz, Sandra and Flaig, Sascha T. and Budianto, Arif},
  title     = {Characterizing volcanic ash elements from the 2015 eruptions of bromo and raung volcanoes, Indonesia},
  series = {Polish Journal of Environmental Studies},
  volume    = {29},
  journal   = {Polish Journal of Environmental Studies},
  number    = {2},
  publisher = {HARD},
  address   = {Olsztyn},
  issn      = {2083-5906},
  doi       = {10.15244/pjoes/99101},
  pages     = {1899 -- 1907},
  year      = {2020},
  abstract  = {The volcanic eruptions of Mt. Bromo and Mt. Raung in East Java, Indonesia, in 2015 perturbed volcanic materials and affected surface-layer air quality at surrounding locations. During the episodes, the volcanic ash from the eruptions influenced visibility, traffic accidents, flight schedules, and human health. In this research, the volcanic ash particles were collected and characterized by relying on the detail of physical observation. We performed an assessment of the volcanic ash elements to characterize the volcanic ash using two different methods which are aqua regia extracts followed by MP-AES and XRF laboratory test of bulk samples. The analysis results showed that the volcanic ash was mixed of many materials, such as Al, Si, P, K, Ca, Ti, V, Cr, Mn, Fe, Ni, and others. Fe, Si, Ca, and Al were found as the major elements, while the others were the trace elements Ba, Cr, Cu, Mn, P, Mn, Ni, Zn, Sb, Sr, and V with the minor concentrations. XRF analyses showed that Fe dominated the elements of the volcanic ash. The XRF analysis showed that Fe was at 35.40\% in Bromo and 43.00\% in Raung of the detected elements in bulk material. The results of aqua regia extracts analyzed by MP-AES were 1.80\% and 1.70\% of Fe element for Bromo and Raung volcanoes, respectively.},
  language  = {en}
}
@article{WeldenPoghossianVahidpouretal.2022,
  author    = {Welden, Melanie and Poghossian, Arshak and Vahidpour, Farnoosh and Wendlandt, Tim and Keusgen, Michael and Wege, Christina and Sch{\"o}ning, Michael Josef},
  title     = {Towards multi-analyte detection with field-effect capacitors modified with tobacco mosaic virus bioparticles as enzyme nanocarriers},
  series = {Biosensors},
  volume    = {12},
  journal   = {Biosensors},
  number    = {1},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2079-6374},
  doi       = {10.3390/bios12010043},
  pages     = {Artikel 43},
  year      = {2022},
  abstract  = {Utilizing an appropriate enzyme immobilization strategy is crucial for designing enzyme-based biosensors. Plant virus-like particles represent ideal nanoscaffolds for an extremely dense and precise immobilization of enzymes, due to their regular shape, high surface-to-volume ratio and high density of surface binding sites. In the present work, tobacco mosaic virus (TMV) particles were applied for the co-immobilization of penicillinase and urease onto the gate surface of a field-effect electrolyte-insulator-semiconductor capacitor (EISCAP) with a p-Si-SiO₂-Ta₂O₅ layer structure for the sequential detection of penicillin and urea. The TMV-assisted bi-enzyme EISCAP biosensor exhibited a high urea and penicillin sensitivity of 54 and 85 mV/dec, respectively, in the concentration range of 0.1-3 mM. For comparison, the characteristics of single-enzyme EISCAP biosensors modified with TMV particles immobilized with either penicillinase or urease were also investigated. The surface morphology of the TMV-modified Ta₂O₅-gate was analyzed by scanning electron microscopy. Additionally, the bi-enzyme EISCAP was applied to mimic an XOR (Exclusive OR) enzyme logic gate.},
  language  = {en}
}
@article{WeldenSeverinsPoghossianetal.2022,
  author    = {Welden, Melanie and Severins, Robin and Poghossian, Arshak and Wege, Christina and Bongaerts, Johannes and Siegert, Petra and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Detection of acetoin and diacetyl by a tobacco mosaic virus-assisted field-effect biosensor},
  series = {Chemosensors},
  volume    = {10},
  journal   = {Chemosensors},
  number    = {6},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2227-9040},
  doi       = {10.3390/chemosensors10060218},
  pages     = {Artikel 218},
  year      = {2022},
  abstract  = {Acetoin and diacetyl have a major impact on the flavor of alcoholic beverages such as wine or beer. Therefore, their measurement is important during the fermentation process. Until now, gas chromatographic techniques have typically been applied; however, these require expensive laboratory equipment and trained staff, and do not allow for online monitoring. In this work, a capacitive electrolyte-insulator-semiconductor sensor modified with tobacco mosaic virus (TMV) particles as enzyme nanocarriers for the detection of acetoin and diacetyl is presented. The enzyme acetoin reductase from Alkalihalobacillus clausii DSM 8716ᵀ is immobilized via biotin-streptavidin affinity, binding to the surface of the TMV particles. The TMV-assisted biosensor is electrochemically characterized by means of leakage-current, capacitance-voltage, and constant capacitance measurements. In this paper, the novel biosensor is studied regarding its sensitivity and long-term stability in buffer solution. Moreover, the TMV-assisted capacitive field-effect sensor is applied for the detection of diacetyl for the first time. The measurement of acetoin and diacetyl with the same sensor setup is demonstrated. Finally, the successive detection of acetoin and diacetyl in buffer and in diluted beer is studied by tuning the sensitivity of the biosensor using the pH value of the measurement solution.},
  language  = {en}
}
@article{WeldenJablonskiWegeetal.2021,
  author    = {Welden, Rene and Jablonski, Melanie and Wege, Christina and Keusgen, Michael and Wagner, Patrick Hermann and Wagner, Torsten and Sch{\"o}ning, Michael Josef},
  title     = {Light-Addressable Actuator-Sensor Platform for Monitoring and Manipulation of pH Gradients in Microfluidics: A Case Study with the Enzyme Penicillinase},
  series = {Biosensors},
  volume    = {11},
  journal   = {Biosensors},
  number    = {6},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2079-6374},
  doi       = {10.3390/bios11060171},
  pages     = {Artikel 171},
  year      = {2021},
  abstract  = {The feasibility of light-addressed detection and manipulation of pH gradients inside an electrochemical microfluidic cell was studied. Local pH changes, induced by a light-addressable electrode (LAE), were detected using a light-addressable potentiometric sensor (LAPS) with different measurement modes representing an actuator-sensor system. Biosensor functionality was examined depending on locally induced pH gradients with the help of the model enzyme penicillinase, which had been immobilized in the microfluidic channel. The surface morphology of the LAE and enzyme-functionalized LAPS was studied by scanning electron microscopy. Furthermore, the penicillin sensitivity of the LAPS inside the microfluidic channel was determined with regard to the analyte's pH influence on the enzymatic reaction rate. In a final experiment, the LAE-controlled pH inhibition of the enzyme activity was monitored by the LAPS.},
  language  = {en}
}
@incollection{WendorffEggertPohletal.2007,
  author    = {Wendorff, Marion and Eggert, Thorsten and Pohl, Martina and Dresen, Carola and M{\"u}ller, Michael and Jaeger, Karl-Erich and Sprenger, Georg A. and Sch{\"u}rmann, Melanie and Sch{\"u}rmann, Martin and Johnen, Sandra and Sprenger, Gerda and Sahm, Hermann and Inoue, Tomoyuki and Sch{\"o}rken, Ulrich and Breittaupt, Holger and Fr{\"o}lich, Bettina and Heim, Petra and Iding, Hans and Juchem, Bettina and Siegert, Petra and Kula, Maria-Regina and Weckbecker, Andrea and Hummel, Werner and Fessner, Wolf-Dieter and Elling, Lothar and Wolberg, Michael and Bode, Silke and Feldmann, Ralf and Geilenkirchen, Petra and Schubert, Thomas and Walter, Lydia and D{\"u}nnwald, Thomas and Demir, Ayhan S. and Kolter-Jung, Doris and Nitsche, Adam and D{\"u}nkelmann, Pascal and Cosp, Annabel and Lingen, Bettina},
  title     = {Catalytic asymmetric synthesis : section 2.2},
  series = {Asymmetric synthesis with chemical and biological methods / ed. by Dieter Enders ...},
  booktitle = {Asymmetric synthesis with chemical and biological methods / ed. by Dieter Enders ...},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  isbn      = {978-3-527-31473-7},
  pages     = {298 -- 413},
  year      = {2007},
  language  = {en}
}
@article{WerkhausenAlbrachtCroninetal.2017,
  author    = {Werkhausen, Amelie and Albracht, Kirsten and Cronin, Neil J. and Meier, Rahel and Mojsen-Moeller, Jens and Seynnes, Olivier R.},
  title     = {Modulation of muscle-tendon interaction in the human triceps surae during an energy dissipation task},
  series = {Journal of Experimental Biology},
  volume    = {220},
  journal   = {Journal of Experimental Biology},
  number    = {22},
  issn      = {0022-0949},
  doi       = {10.1242/jeb.164111},
  pages     = {4141 -- 4149},
  year      = {2017},
  language  = {en}
}
@article{WernerGroebelKrumbeetal.2012,
  author    = {Werner, Frederik and Groebel, Simone and Krumbe, Christoph and Wagner, Torsten and Selmer, Thorsten and Yoshinobu, Tatsuo and Baumann, Marcus and Sch{\"o}ning, Michael Josef},
  title     = {Nutrient concentration-sensitive microorganism-based biosensor},
  series = {Physica Status Solidi (a)},
  volume    = {209},
  journal   = {Physica Status Solidi (a)},
  number    = {5},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {1862-6319},
  doi       = {10.1002/pssa.201100801},
  pages     = {900 -- 904},
  year      = {2012},
  language  = {en}
}
@article{WernerGroebelSchuhmacheretal.2009,
  author    = {Werner, Frederik and Groebel, Simone and Schuhmacher, K. and Spelthahn, Heiko and Wagner, Torsten and Selmer, Thorsten and Baumann, Marcus and Sch{\"o}ning, Michael Josef},
  title     = {Bestimmung der metabolischen Aktivit{\"a}t von Mikroorganismen w{\"a}hrend des Biogasbildungsprozesses},
  series = {9. Dresdner Sensor-Symposium : Dresden, 07.-09. Dezember 2009 / Gerlach, Gerald ; Hauptmann, Peter [Hrsg.]},
  journal   = {9. Dresdner Sensor-Symposium : Dresden, 07.-09. Dezember 2009 / Gerlach, Gerald ; Hauptmann, Peter [Hrsg.]},
  publisher = {TUDpress},
  address   = {Dresden},
  isbn      = {978-3-941298-44-6},
  pages     = {201 -- 204},
  year      = {2009},
  language  = {de}
}
@article{WernerGroebelWagneretal.2011,
  author    = {Werner, Frederik and Groebel, Simone and Wagner, Torsten and Yoshinobu, Tatsuo and Selmer, Thorsten and Baumann, Marcus and Sch{\"o}ning, Michael Josef},
  title     = {{\"U}berwachung der metabolischen Aktivit{\"a}t von Mikroorganismen zur Kontrolle des biologischen Prozesses im Biogasfermenter},
  series = {Biogas 2011 : Energietr{\"a}ger der Zukunft ; 6. Fachtagung, Fachtagung Braunschweig, 08. und 09. Juni 2011 / VDI Energie und Umwelt},
  journal   = {Biogas 2011 : Energietr{\"a}ger der Zukunft ; 6. Fachtagung, Fachtagung Braunschweig, 08. und 09. Juni 2011 / VDI Energie und Umwelt},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {978-3-18-092121-1},
  pages     = {285 -- 286},
  year      = {2011},
  language  = {de}
}
@article{WernerKrumbeSchumacheretal.2011,
  author    = {Werner, Frederik and Krumbe, Christoph and Schumacher, Katharina and Groebel, Simone and Spelthahn, Heiko and Stellberg, Michael and Wagner, Torsten and Yoshinobu, Tatsuo and Selmer, Thorsten and Keusgen, Michael and Baumann, Marcus and Sch{\"o}ning, Michael Josef},
  title     = {Determination of the extracellular acidification of Escherichia coli by a light-addressable potentiometric sensor},
  series = {Physica status solidi (a) : applications and material science. 208 (2011), H. 6},
  journal   = {Physica status solidi (a) : applications and material science. 208 (2011), H. 6},
  publisher = {Wiley},
  address   = {Weinheim},
  isbn      = {1862-6319},
  pages     = {1340 -- 1344},
  year      = {2011},
  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{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{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}
}
@misc{WielandSiegertSpitzetal.2011,
  author    = {Wieland, Susanne and Siegert, Petra and Spitz, Astrid and Maurer, Karl-Heinz and O'Connell, Timothy and Pr{\"u}ser, Inken and Schiedel, Marc-Steffen and Eiting, Thomas and Sendor-M{\"u}ller, Dorota and Bastigkeit, Thorsten and Benda, Konstantin and M{\"u}ller, Sven},
  title     = {Lagerstabiles fl{\"u}ssiges Wasch- oder Reinigungsmittel enthaltend Proteasen [Offenlegungsschrift]},
  publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt / WIPO},
  address   = {M{\"u}nchen / Den Hague / Genf},
  pages     = {1 -- 25},
  year      = {2011},
  language  = {de}
}
@article{WiesenTippkoetterMuffleretal.2015,
  author    = {Wiesen, Sebastian and Tippk{\"o}tter, Nils and Muffler, Kai and Suck, Kirstin and Sohling, Ulrich and Ruf, Friedrich and Ulber, Roland},
  title     = {Adsorption of fatty acids to layered double hydroxides in aqueous systems},
  series = {Adsorption},
  volume    = {21},
  journal   = {Adsorption},
  number    = {6-7},
  publisher = {Springer},
  address   = {Berlin},
  pages     = {459 -- 466},
  year      = {2015},
  abstract  = {Due to their anion exchange characteristics, layered double hydroxides (LDHs) are suitable for the detoxification of aqueous, fatty acid containing fermentation substrates. The aim of this study is to examine the adsorption mechanism, using crude glycerol from plant oil esterification as a model system. Changes in the intercalation structure in relation to the amount of fatty acids adsorbed are monitored by X-ray diffraction and infra-red spectroscopy. Additionally, calcination of LDH is investigated in order to increase the binding capacity for fatty acids. Our data propose that, at ambient temperature, fatty acids can be bound to the hydrotalcite by adsorption or in addition by intercalation, depending on fatty acid concentration. The adsorption of fatty acids from crude glycerol shows a BET-like behavior. Above a fatty acid concentration of 3.5 g L-1, intercalation of fatty acids can be shown by the appearance of an increased interlayer spacing. This observation suggests a two phase adsorption process. Calcination of LDHs allows increasing the binding capacity for fatty acids by more than six times, mainly by reduction of structural CO32-.},
  language  = {en}
}
@article{WiesenTippkoetterMuffleretal.2014,
  author    = {Wiesen, Sebastian and Tippk{\"o}tter, Nils and Muffler, Kai and Suck, Kirstin and Sohling, Ulrich and Ruf, Nils and Ulber, Roland},
  title     = {Adsorptive Vorbehandlung von Rohglycerin f{\"u}r die 1,3-Propandiol Fermentation mit Clostridium diolis},
  series = {Chemie Ingenieur Technik},
  volume    = {86},
  journal   = {Chemie Ingenieur Technik},
  number    = {1-2},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  doi       = {10.1002/cite.201300080},
  pages     = {129 -- 135},
  year      = {2014},
  abstract  = {Bei der Gewinnung von Fetts{\"a}uren aus Pflanzen{\"o}len, z. B. zur Herstellung von Biopolymeren, oder bei der Biodiesel- und Seifenproduktion, f{\"a}llt Glycerin als Nebenprodukt an. Bei der Biokonversion dieses Rohstoffes zu 1,3-Propandiol wird der Produktionsorganismus Clostridium diolis durch Verunreinigungen im Rohglycerin gehemmt. Als inhibierende Substanzen konnten freie Fetts{\"a}uren identifiziert werden. Mithilfe eines adsorptiven Aufarbeitungsverfahrens ist es gelungen, die Fetts{\"a}uren zu entfernen und die Konversionseffizienz zu 1,3-Propandiol zu erh{\"o}hen.},
  language  = {de}
}
@article{WiezorekBaumann1999,
  author    = {Wiezorek, E. and Baumann, Marcus},
  title     = {Stadt{\"o}kologie in der Stadtplanung: der "Stadt{\"o}kologische Beitrag" Aachen},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {21},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {97},
  issn      = {0172-1623},
  pages     = {28 -- 37},
  year      = {1999},
  language  = {de}
}