TY  - CHAP
A1  - Al-Kaidy, Huschyar
A1  - Ulber, Roland
A1  - Tippkötter, Nils
T1  - A platform technology for the automated reaction control in magnetizable micro-fluidic droplets
T2  - Biomaterials - made in bioreactors : book of abstracts, May 26 - 28, 2014, Radisson Blu Park Hotel and Conference Dentre, Radebeul, Germany
Y1  - 2014
SP  - 21
EP  - 22
PB  - DECHEMA
CY  - Frankfurt am Main
ER  - 
TY  - CHAP
A1  - Engel, Mareike
A1  - Thieringer, Julia
A1  - Tippkötter, Nils
T1  - Linking bioprocess engineering and electrochemistry for sustainable biofuel production
T2  - Young Researchers Symposium, YRS 2016. Proceedings
N2  - 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.
Y1  - 2016
N1  - Young Researchers Symposium, YRS 2016, 14th - 15th April 2016, Fraunhofer-Zentrum Kaiserslautern
SP  - 49
EP  - 53
PB  - Fraunhofer Verlag
CY  - Karlsruhe
ER  - 
TY  - CHAP
A1  - Feuerriegel, Uwe
A1  - Wittenhorst, Simon
A1  - Hoffmann, Ulrich
A1  - Pook, Michael
T1  - Simulation von Wärmeübertragungsprozessen
T2  - Tagungsband zur AALE-Tagung 2012 : 9. Fachkonferenz
Y1  - 2012
SN  - 978-3-8356-3305-6
N1  - AALE 2012
SP  - 127
EP  - 136
PB  - Oldenbourg Industrieverlag
CY  - München
ER  - 
TY  - CHAP
A1  - Brandini, Frederico Pereira
A1  - Baumann, Marcus
T1  - The potential role of melted 'brown ice' as sources of chelators and ammonia to the surface waters of the Weddell Sea, Antarctica
T2  - Proceedings of the NIPR Symposium on Polar Biology : 10
Y1  - 1997
SN  - 0914-563X
SP  - 1
EP  - 13
CY  - Tokyo
ER  -