Publikationen am Institut für Chemie und Biotechnik

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Cao, Jialan; Kürsten, Dana; Teuber, J.; Schneider, Steffen; Köhler, J. Michael
Untersuchung von Kombinations-Wirkungen durch Realisierung zwei- und mehrdimensionaler Konzentrationsräume in der Mikrofluidsegmenttechnik. - In: Technische Systeme für die Lebenswissenschaften, ISBN 978-3-00-039458-4, (2012), S. 165

Williamson, Adam; Laqua, Daniel; Klefenz, Frank; Husar, Peter; Schober, Andreas
3D capacitively coupled MEA on a 3D microstructure array with interface technology. - In: Conference proceedings of the 8th International Meeting on Substrate-Integrated Microelectrode Arrays, (2012), S. 297-298

Cao-Riehmer, Jialan; Schultheiß, Robert; Schneider, Steffen; Schober, Andreas; Köhler, Michael; Groß, Gregor Alexander
'Drop-by-drop' - tools for droplet-based micro-fluidic processing. - In: Proceedings, (2012), insges. 9 S.

Knauer, Andrea; Csáki, Andrea; Fitzsche, Wolfgang; Köhler, Michael
Continuous flow-through synthesis of prismatic silver nanoparticles in micro fluid segment sequences for possible SERS application. - In: 76th Jahrestagung der DPG (76th annual conference of the DPG) and DPG-Frühjahrstagung (spring meeting) of the Condensed Matter Section (SKM) with further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as well as the DPG working groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, young DPG ; March 25 - 30, 2012, Technische Universität Berlin, 2012, CPP 8.8

Lenk, Claudia; Seemann, Gunnar; Einax, Mario; Maaß, Philipp
On the possible generation of atrial fibrillation by mutually interacting excitation sources. - In: 76th Jahrestagung der DPG (76th annual conference of the DPG) and DPG-Frühjahrstagung (spring meeting) of the Condensed Matter Section (SKM) with further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as well as the DPG working groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, young DPG ; March 25 - 30, 2012, Technische Universität Berlin, 2012, DY 19.2

Lenk, Claudia; Einax, Mario; Maaß, Philipp; Köhler, Michael
Local coupling of non-linear oscillators studied in the Bhelousov-Zhabotinsky reaction. - In: 76th Jahrestagung der DPG (76th annual conference of the DPG) and DPG-Frühjahrstagung (spring meeting) of the Condensed Matter Section (SKM) with further DPG Divisions: Environmental Physics, Microprobes, Radiation and Medical Physics, as well as the DPG working groups: Energy, Equal Opportunities, Industry and Business, Information, Philosophy of Physics, Physics and Disarmament, young DPG ; March 25 - 30, 2012, Technische Universität Berlin, 2012, DY 22.38

Tsierkezos, Nikos; Ritter, Uwe; Wetzold, Nora; Hübler, Arved Carl
Non-enzymatic analysis of glucose on printed films based on multi-walled carbon nanotubes. - In: Microchimica acta, ISSN 1436-5073, Bd. 179 (2012), 1/2, S. 157-161

We report on the fabrication of an enzyme-free electrochemical sensor for glucose based on a printed film consisting of multi-walled carbon nanotubes (MWCNTs). The MWCNT-based film can be produced by means of a flexographic printing process on a polycarbonate (PC) substrate. The electrochemical response of the MWCNT-based film (referred to as MWCNT-PC) towards the oxidation of glucose at pH 7 was studied by means of cyclic voltammetry and electrochemical impedance spectroscopy. The MWCNT-PC film exhibits substantial electrocatalytic activity towards the oxidation of glucose at an anodic potential of 0.30 V (vs. Ag/AgCl). The findings reveal that the MWCNT-PC film enables non-enzymatic sensing of glucose with a detection limit as low as 2.16 mu M and a sensitivity of 1045 mu Aa (TM) mM(-1)a (TM) cm(-2).



https://doi.org/10.1007/s00604-012-0881-7
Tsierkezos, Nikos; Ritter, Uwe;
Influence of concentration of supporting electrolyte on electrochemistry of redox systems on multi-walled carbon nanotubes. - In: Physics and chemistry of liquids, ISSN 1029-0451, Bd. 50 (2012), 5, S. 661-668

In the present work, the effect of the concentration of supporting electrolyte on the electrochemical behaviour of the redox couple ferrocyanide/ferricyanide, [Fe(CN)(6)](3-/4-) on film consisted of multi-walled carbon nanotubes (MWCNTs) was investigated. The MWCNTs were selectively grown on oxidised silicon substrate by means of catalytic chemical vapour deposition (CCVD) technique with decay of acetonitrile (ACN) in the presence of ferrocene (FeCp2) that served as catalysts. For the electrochemistry studies, the techniques of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in three-electrode system were employed. The correlation between the solution's ionic strength and the electrochemical impedance parameters are discussed.



http://dx.doi.org/10.1080/00319104.2012.663496
Tsierkezos, Nikos; Ritter, Uwe;
Electrochemical responses and sensitivities of films based on multi-walled carbon nanotubes in aqueous solutions. - In: Journal of solution chemistry, ISSN 1572-8927, Bd. 41 (2012), 11, S. 2047-2057

http://dx.doi.org/10.1007/s10953-012-9925-1
Rud, Yu.; Buchatskyy, L.; Prylutskyy, Yu.; Marchenko, O.; Senenko, A.; Schütze, Christina; Ritter, Uwe
Using C 60 fullerenes for photodynamic inactivation of mosquito iridescent viruses. - In: Journal of enzyme inhibition and medicinal chemistry, ISSN 1475-6374, Bd. 27 (2012), 4, S. 614-617

This article describes the photodynamic inactivation of mosquito iridescent virus (MIV) Aedes flavescens in the presence of water-soluble C-60 fullerenes. It has been observed that the photodynamic inactivation of MIV for about 1 h reduces the infectious titre of the virus in large wax-moth larvae Galleria mellonella to 4.5 lg ID50 /mL. The influence of the C-60 concentration on its anti-viral activity was tested in the concentration range from 1 to 0.001 mg/mL. It has been found that C-60 is able to inactivate the iridovirus even in low concentrations. Consequently, the findings of this work suggest that photoexcited C-60 fullerenes can be successfully used for the inactivation of iridoviruses in biological systems.



http://dx.doi.org/10.3109/14756366.2011.601303