@article{FeuerriegelStahlbergWeisenburgeretal.1995,
  author    = {Feuerriegel, Uwe and Stahlberg, R. and Weisenburger, P. and Steiger, F.},
  title     = {Massen- und Energiebilanzen unter Einbeziehung der Untersuchungen an der Thermoselect-Anlage Fondotoce (Italien). Stahlberg, R.; Feuerriegel, U.; Weisenburger, P.; Steiger, F.},
  series = {Thermoselect : der neue Weg, Restm{\"u}ll umweltgerecht zu behandeln ; [Tagungsband zur Fachtagung Thermoselect am 19. Januar 1995 in Rastatt/Baden] / G{\"u}nther H{\"a}ßler. 2. durchges. und erw. Aufl.},
  journal   = {Thermoselect : der neue Weg, Restm{\"u}ll umweltgerecht zu behandeln ; [Tagungsband zur Fachtagung Thermoselect am 19. Januar 1995 in Rastatt/Baden] / G{\"u}nther H{\"a}ßler. 2. durchges. und erw. Aufl.},
  publisher = {Goerner},
  address   = {Karlsruhe},
  isbn      = {3-9803665-4-5},
  pages     = {55 -- 84},
  year      = {1995},
  language  = {de}
}
@article{FeuerriegelKuenschStahlbergetal.1994,
  author    = {Feuerriegel, Uwe and K{\"u}nsch, M. and Stahlberg, R. and Steiger, F.},
  title     = {Massen- und Energiebilanz des Thermoselect-Verfahrens},
  series = {Thermoselect-Verfahren zur Ent- und Vergasung von Abf{\"a}llen / Franz J. Schweitzer [Hrsg.]},
  journal   = {Thermoselect-Verfahren zur Ent- und Vergasung von Abf{\"a}llen / Franz J. Schweitzer [Hrsg.]},
  publisher = {EF-Verl. f{\"u}r Energie- u. Umwelttechnik},
  address   = {Berlin},
  isbn      = {3-924511-47-0},
  pages     = {207 S. : graph. Darst.},
  year      = {1994},
  language  = {de}
}
@article{BaumannKraemer1986,
  author    = {Baumann, Marcus and Kr{\"a}mer, M.},
  title     = {Marine Planktonalgen der Arktis II. Diatomeen / Baumann, M. ; Kr{\"a}mer, M.},
  series = {Mikrokosmos. 75 (1986), H. 10},
  journal   = {Mikrokosmos. 75 (1986), H. 10},
  isbn      = {0026-3680},
  pages     = {306 -- 310},
  year      = {1986},
  language  = {de}
}
@article{BaumannJahnke1986,
  author    = {Baumann, Marcus and Jahnke, J.},
  title     = {Marine Planktonalgen der Arktis I. Die Haptophycee Phaeocystis pouchetii / Baumann, M. ; Jahnke, J.},
  series = {Mikrokosmos. 75 (1986), H. 9},
  journal   = {Mikrokosmos. 75 (1986), H. 9},
  isbn      = {0026-3680},
  pages     = {262 -- 265},
  year      = {1986},
  language  = {de}
}
@article{SchmidtTurgutLeetal.2020,
  author    = {Schmidt, Aaron C. and Turgut, Hatice and Le, Dao and Beloqui, Ana and Delaittre, Guillaume},
  title     = {Making the best of it: nitroxide-mediated polymerization of methacrylates via the copolymerization approach with functional styrenics},
  series = {Polymer Chemistry},
  volume    = {11},
  journal   = {Polymer Chemistry},
  number    = {2},
  publisher = {Royal Society of Chemistry (RSC)},
  address   = {Cambridge},
  doi       = {10.1039/C9PY01458F},
  pages     = {593 -- 604},
  year      = {2020},
  abstract  = {The SG1-mediated solution polymerization of methyl methacrylate (MMA) and oligo(ethylene glycol) methacrylate (OEGMA, Mₙ = 300 g mol⁻¹) in the presence of a small amount of functional/reactive styrenic comonomer is investigated. Moieties such as pentafluorophenyl ester, triphenylphosphine, azide, pentafluorophenyl, halide, and pyridine are considered. A comonomer fraction as low as 5 mol\% typically results in a controlled/living behavior, at least up to 50\% conversion. Chain extensions with styrene for both systems were successfully performed. Variation of physical properties such as refractive index (for MMA) and phase transition temperature (for OEGMA) were evaluated by comparing to 100\% pure homopolymers. The introduction of an activated ester styrene derivative in the polymerization of OEGMA allows for the synthesis of reactive and hydrophilic polymer brushes with defined thickness. Finally, using the example of pentafluorostyrene as controlling comonomer, it is demonstrated that functional PMMA-b-PS are able to maintain a phase separation ability, as evidenced by the formation of nanostructured thin films.},
  language  = {en}
}
@article{TippkoetterWollnyKampeisetal.2011,
  author    = {Tippk{\"o}tter, Nils and Wollny, S. and Kampeis, P. and Oster, J. and Schneider, H. and Ulber, Roland},
  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}
}
@misc{HeringPasteurWollnyetal.2014,
  author    = {Hering, T. and Pasteur, A. and Wollny, S. and Ulber, Roland and Tippk{\"o}tter, Nils},
  title     = {Magnetische Separation von Gold-Nanopartikeln zur Glucons{\"a}ure-Produktion durch Hochgradient-Magnetseparation im Labormaßstab},
  series = {Chemie Ingenieur Technik},
  volume    = {86},
  journal   = {Chemie Ingenieur Technik},
  number    = {9},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.201450265},
  pages     = {1501},
  year      = {2014},
  abstract  = {Bei der Verarbeitung nachwachsender Rohstoffe entsteht aus Cellulose oder St{\"a}rke u. a. das wichtige Produkt Glucose. Diese niedermolekulare Kohlenhydratquelle wird {\"u}blicherweise als Substrat f{\"u}r biotechnologische und chemische Synthesen verwendet. Ein wirtschaftlich interessantes Oxidationsprodukt der Glucose ist Glucons{\"a}ure, die beispielsweise als Lebensmittelzusatzstoff (E 574), in der Medizin und Metallindustrie Verwendung findet. Die Umsetzung des Monosaccharids zu Glucons{\"a}ure erfolgt entweder durch mikrobielle Fermentation oder der Oxidation an heterogenen Katalysatoren. Die Zielsetzung der Studie ist die Untersuchung der Glucoseoxidation an magnetisierbaren Gold-Nanopartikeln unter nachfolgender Bypass-Separation des Katalysators mittels einer neuen Mini-HGMS-Einheit (Hochgradient-Magnetseparation). Dieser Filtertyp erm{\"o}glicht die selektive Trennung magnetischer Partikel aus Suspensionen mit hohem Feststoffgehalt oder Viskosit{\"a}t. Erste Ergebnisse zeigen eine Beladungskapazit{\"a}t des selbstkonstruierten Mini-HGMS von 550 mg goldbeschichteter magnetisierbarer Nanopartikel. Die Oxidation erfolgt bei einem pH-Wertvon 9, bei 40 °C und mit 100 mM Glucose in einem begasten R{\"u}hrkesselreaktor. Das System soll zuk{\"u}nftig zum Katalysatorrecycling von hochviskosen und Feststoffbelasteten Produktstr{\"o}men aus Bioraffinerien eingesetzt werden.},
  language  = {de}
}
@article{Mang2005,
  author    = {Mang, Thomas},
  title     = {Magnetische Mikro- und Nanopartikel f{\"u}r Medizin und Biotechnik},
  series = {W{\"a}ssrige Kunststoffdispersionen und ihre Anwendung : Fachbereich Angewandte Naturwissenschaften und Technik / Fachhochschule Aachen. [Schriftleitung: Thomas Mang ...]},
  journal   = {W{\"a}ssrige Kunststoffdispersionen und ihre Anwendung : Fachbereich Angewandte Naturwissenschaften und Technik / Fachhochschule Aachen. [Schriftleitung: Thomas Mang ...]},
  publisher = {Fachhochschule Aachen},
  address   = {Aachen},
  pages     = {137 -- 150},
  year      = {2005},
  language  = {de}
}
@misc{TippkoetterPasteurUlber2012,
  author    = {Tippk{\"o}tter, Nils and Pasteur, A. and Ulber, Roland},
  title     = {Magnetisch abtrennbare Gold-Nanopartikel zur katalytischen Zuckeroxidation},
  series = {Chemie Ingenieur Technik},
  volume    = {84},
  journal   = {Chemie Ingenieur Technik},
  number    = {8},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  issn      = {0009-286X},
  doi       = {10.1002/cite.201250393},
  pages     = {1328},
  year      = {2012},
  abstract  = {Glucose ist ein prim{\"a}res Zwischenprodukt der Verarbeitung nachwachsender Rohstoffe, wie z. B. Cellulose. Die wertsteigernde Weiterverarbeitung des Monosaccharids erfolgt h{\"a}ufig in Form vonFermentationsprozessen, jedoch kann der Rohstoff auch f{\"u}r zahlreiche chemische Verarbeitungsstufen genutzt werden. Ein großtechnisch relevanter Prozess ist die Herstellung von Glucons{\"a}ure (GS), die u. a. als Nahrungsmittelzusatz (E 574) eingesetzt wird. Die Darstellung der S{\"a}ure erfolgt durch Oxidation von Glucose mit magnetisierbarem Gold-Nano-Katalysator. Die R{\"u}ckgewinnung des Katalysators aus der Reaktionsl{\"o}sung wurde unter Einwirkung eines Magnetfeldgradienten verwirklicht. Die Synthese der magnetischen Goldkatalysatoren (sowohl Tr{\"a}gerpartikel als auch Gold-Nanopartikel) wurde durch nass-chemische F{\"a}llungsreaktionen durchgef{\"u}hrt. Die Charakteristiken der neuen Materialen konnte durch Messungen des PCD-Potenzials, Laserbeugung und REM/EDX untersucht werden. So wurden u. a. Partikeldurchmesser von 25 lm und ein Goldgehaltvon 1,03 \% ermittelt. Weiterhin wurden f{\"u}r die Goldkatalysatoren optimale Reaktionsbedingungen f{\"u}r die Glucoseoxidation im geregelten R{\"u}hrkesselreaktor etabliert. Hierdurch konnten eine Produktselektivit{\"a}t von 100 \% und eine Wiederverwendbarkeit der Partikel {\"u}ber mindestens zehn Zyklen erreicht werden.},
  language  = {de}
}
@article{AdelsMonakhova2024,
  author    = {Adels, Klaudia and Monakhova, Yulia},
  title     = {Low-field NMR spectroscopic study of e-cigarettes: Is determination of only nicotine and organic carrier solvents possible?},
  series = {Microchemical Journal},
  volume    = {203},
  journal   = {Microchemical Journal},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1095-9149},
  doi       = {10.1016/j.microc.2024.110859},
  pages     = {9 Seiten},
  year      = {2024},
  abstract  = {Electronic cigarettes (e-cigarettes) have become popular worldwide with the market growing exponentially in some countries. The absence of product standards and safety regulations requires urgent development of analytical methodologies for the holistic control of the growing diversity of such products. An approach based on low-field nuclear magnetic resonance (LF-NMR) at 80 MHz is presented for the simultaneous determination of key parameters: carrier solvents (vegetable glycerine (VG), propylene glycol (PG) and water), total nicotine as well as free-base nicotine fraction. Moreover, qualitative and quantitative determination of fourteen weak organic acids deliberately added to enhance sensory characteristics of e-cigarettes was possible. In most cases these parameters can be rapidly and conveniently determined without using any sample manipulation such as dilution, extraction or derivatization steps. The method was applied for 37 authentic e-cigarettes samples. In particular, eight different organic acids with the content up to 56 mg/mL were detected. Due to its simplicity, the method can be used in routine regulatory control as well as to study release behaviour of nicotine and other e-cigarettes constituents in different products.},
  language  = {en}
}
@techreport{Tippkoetter2018,
  author    = {Tippk{\"o}tter, Nils},
  title     = {Lokale Vorbehandlung nachwachsender Rohstoffe f{\"u}r Bioraffinerien (BioSats) : Schlussbericht zum Vorhaben : Laufzeit: 01.03.2012 bis 30.04.2017},
  organization    = {Technische Universit{\"a}t Kaiserslautern},
  doi       = {10.2314/GBV:1024204243},
  pages     = {191 Seiten},
  year      = {2018},
  language  = {de}
}
@article{MeinersBaumann1997,
  author    = {Meiners, Klaus and Baumann, Marcus},
  title     = {Lokale Beitr{\"a}ge zum globalen Klimaschutz},
  series = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  volume    = {19},
  journal   = {Wechselwirkung : Wissenschaft \& vernetztes Denken},
  number    = {84},
  issn      = {0172-1623},
  pages     = {6 -- 12},
  year      = {1997},
  language  = {de}
}
@incollection{TippkoetterMoehringRothetal.2019,
  author    = {Tippk{\"o}tter, Nils and M{\"o}hring, Sophie and Roth, Jasmine and Wulfhorst, Helene},
  title     = {Logistics of lignocellulosic feedstocks: preprocessing as a preferable option},
  series = {Biorefineries},
  booktitle = {Biorefineries},
  publisher = {Springer},
  address   = {Cham},
  isbn      = {978-3-319-97117-9},
  doi       = {10.1007/10_2017_58},
  pages     = {43 -- 68},
  year      = {2019},
  abstract  = {In comparison to crude oil, biorefinery raw materials are challenging in concerns of transport and storage. The plant raw materials are more voluminous, so that shredding and compacting usually are necessary before transport. These mechanical processes can have a negative influence on the subsequent biotechnological processing and shelf life of the raw materials. Various approaches and their effects on renewable raw materials are shown. In addition, aspects of decentralized pretreatment steps are discussed. Another important aspect of pretreatment is the varying composition of the raw materials depending on the growth conditions. This problem can be solved with advanced on-site spectrometric analysis of the material.},
  language  = {en}
}
@article{PrielmeierHoerstermannGyngelletal.1992,
  author    = {Prielmeier, Franz and H{\"o}rstermann, D. and Gyngell, M. L. and Merboldt, K.-D.},
  title     = {Localized Proton MRS of Acute and Chronic Gyperglycemia in Rat Brain in vivo / D. H{\"o}rstermann, F. Prielmeier , M. L. Gyngell, K.-D. Merboldt, W. H{\"a}nicke, J. Frahm},
  series = {Book of Abstracts, SMRM, 11th Annual Meeting Berlin},
  journal   = {Book of Abstracts, SMRM, 11th Annual Meeting Berlin},
  pages     = {2740},
  year      = {1992},
  language  = {en}
}
@misc{BanowskiWadleSiegertetal.2004,
  author    = {Banowski, Bernhard and Wadle, Armin and Siegert, Petra and S{\"a}ttler, Andrea},
  title     = {Lipase-Inhibitoren in Deodorantien und Antitranspirantien [Offenlegungsschrift]},
  publisher = {Deutsches Patent- und Markenamt / Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen / Den Hague},
  pages     = {1 -- 22},
  year      = {2004},
  language  = {de}
}
@inproceedings{EngelThieringerTippkoetter2016,
  author    = {Engel, Mareike and Thieringer, Julia and Tippk{\"o}tter, Nils},
  title     = {Linking bioprocess engineering and electrochemistry for sustainable biofuel production},
  series = {Young Researchers Symposium, YRS 2016. Proceedings},
  booktitle = {Young Researchers Symposium, YRS 2016. Proceedings},
  publisher = {Fraunhofer Verlag},
  address   = {Karlsruhe},
  pages     = {49 -- 53},
  year      = {2016},
  abstract  = {Electromicrobial engineering is an emerging, highly interdisciplinary research area linking bioprocesses with electrochemistry. In this work, microbial electrosynthesis (MES) of biobutanol is carried out during acetone-butanol-ethanol (ABE) fermentations with Clostridium acetobutylicum. A constant electric potential of -600mV (vs. Ag/AgCl) with simultaneous addition of the soluble redox mediator neutral red is used in order to study the electron transfer between the working electrode and the bacterial cells. The results show an earlier initiation of solvent production for all fermentations with applied potential compared to the conventional ABE fermentation. The f inal butanol concentration can be more than doubled by the application of a negative potential combined with addition of neutral red. Moreover a higher biofilm formation on the working electrode compared to control cultivations has been observed. In contrast to previous studies, our results also indicate that direct electron transfer (DET) might be possible with C. acetobutylicum. The presented results make microbial butanol production economically attractive and therefore support the development of sustainable production processes in the chemical industry aspired by the "Centre for resource-efficient chemistry and raw material change" as well as the the project "NanoKat" working on nanostructured catalysts in Kaiserslautern.},
  language  = {en}
}
@article{PothMonzonTippkoetteretal.2011,
  author    = {Poth, Sebastian and Monzon, Magaly and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Lignocellulosic biorefinery: Process integration of hydrolysis and fermentation (SSF process)},
  series = {Holzforschung},
  volume    = {65},
  journal   = {Holzforschung},
  number    = {5},
  publisher = {De Gruyter},
  address   = {Berlin},
  pages     = {633 -- 637},
  year      = {2011},
  abstract  = {The aim of the present work is the process integration and the optimization of the enzymatic hydrolysis of wood and the following fermentation of the products to ethanol. The substrate is a fiber fraction obtained by organosolv pre-treatment of beech wood. For the ethanol production, a co-fermentation by two different yeasts (Saccharomyces cerevisiae and Pachysolen tannophilus) was carried out to convert glucose as well as xylose. Two approaches has been followed: 1. A two step process, in which the hydrolysis of the fiber fraction and the fermentation to product are separated from each other. 2. A process, in which the hydrolysis and the fermentation are carried out in one single process step as simultaneous saccharification and fermentation (SSF). Following the first approach, a yield of about 0.15 g ethanol per gram substrate can be reached. Based on the SSF, one process step can be saved, and additionally, the gained yield can be raised up to 0.3 g ethanol per gram substrate.},
  language  = {en}
}
@inproceedings{PothMonzonTippkoetteretal.2010,
  author    = {Poth, Sebastian and Monzon, Magaly and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Lignocellulosic biorefinery : process integration of hydrolysis and fermentation},
  series = {Proceedings / 11th European Workshop on Lignocellulosics and Pulp : August 16 - 19, 2010, Hamburg, Germany},
  booktitle = {Proceedings / 11th European Workshop on Lignocellulosics and Pulp : August 16 - 19, 2010, Hamburg, Germany},
  publisher = {vTi},
  address   = {Hamburg},
  pages     = {65 -- 68},
  year      = {2010},
  language  = {en}
}
@incollection{DuweTippkoetterUlber2018,
  author    = {Duwe, A. and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Lignocellulose-Biorefinery: Ethanol-Focused},
  series = {Biorefineries},
  booktitle = {Biorefineries},
  publisher = {Springer},
  address   = {Cham},
  doi       = {10.1007/10_2016_72},
  pages     = {177 -- 215},
  year      = {2018},
  abstract  = {The development prospects of the world markets for petroleum and other liquid fuels are diverse and partly contradictory. However, comprehensive changes for the energy supply of the future are essential. Notwithstanding the fact that there are still very large deposits of energy resources from a geological point of view, the finite nature of conventional oil reserves is indisputable. To reduce our dependence on oil, the EU, the USA, and other major economic zones rely on energy diversification. For this purpose, alternative materials and technologies are being sought, and is most obvious in the transport sector. The objective is to progressively replace fossil fuels with renewable and more sustainable fuels. In this respect, biofuels have a pre-eminent position in terms of their capability of blending with fossil fuels and being usable in existing cars without substantial modification. Ethanol can be considered as the primary renewable liquid fuel. In this chapter enzymes, micro-organisms, and processes for ethanol production based on renewable resources are described.},
  language  = {en}
}
@misc{PothMonzonTippkoetteretal.2010,
  author    = {Poth, S. and Monzon, M. and Tippk{\"o}tter, Nils and Ulber, Roland},
  title     = {Lignocellulose-Bioraffinerie: Simultane Verzuckerung und Fermentation},
  series = {Chemie Ingenieur Technik},
  volume    = {82},
  journal   = {Chemie Ingenieur Technik},
  number    = {9},
  publisher = {Wiley-VCH},
  address   = {Weinheim},
  doi       = {10.1002/cite.201050360},
  pages     = {1568},
  year      = {2010},
  abstract  = {Die am h{\"a}ufigsten genutzten Rohstoffe f{\"u}r die Produktion von Treibstoffen und Chemikalien sind fossilen Ursprungs. Da diese limitiert sind, werden im Hinblick auf die Nachhaltigkeit alternative, erneuerbare Rohstoffquellen intensiv untersucht. Vielversprechend in diesem Kontext sind die in Lignocellulose enthaltenen Zucker, die beispielsweise zur Produktion von Ethanol genutzt werden k{\"o}nnen. In der Regel sind f{\"u}r eine Lig-nocellulose-Bioraffinerie mehrere Prozessschritte notwendig: Vorbehandlung, Verzuckerung und Fermentation. Um diesen Prozess einfacher zu gestalten, ist es m{\"o}glich, die Verzuckerung und die Fermentation in einem Schritt durchzuf{\"u}hren (SSF). Als Substrat wird hier Cellulose-Faserstoff verwendet, der durch das Organosolv-Verfahren aufgeschlossen wurde. Die Hydrolyse erfolgt mit kommerziell erh{\"a}ltlichen Enzymen und f{\"u}r die Fermentation zu Ethanol werden zwei Hefen verwendet. Beim SSF-Verfahren konnte, im Vergleich zur entkoppelten Verfahrensweise, trotz bestehender Unterschiede in den Temperatur-Optima von Enzymen und Hefen eine Steigerung in der Ethanol-Ausbeute von 0,15 auf 0,2 gg⁻¹ beobachtet werden. Um wirtschaftliche Ausbeuten und Konzentrationen des Produkts erzielen zu k{\"o}nnen, ist es notwendig den Prozess weiter zu optimieren. Im Einzelfall muss {\"u}berpr{\"u}ft werden, ob diese Verfahrensweise auch f{\"u}r die Produktion anderer interessanter Stoffe (wie Itacons{\"a}ure, Bernsteins{\"a}ure) geeignet ist.},
  language  = {de}
}