TY - JOUR A1 - Bauer, Christian G. A1 - Eremenko, A. V. A1 - Ehrentreich-Förster, Eva A1 - Bier, Frank Fabian A1 - Makower, Alexander A1 - Halsall, H. B. A1 - Heineman, W. R. A1 - Scheller, Frieder W. T1 - Zeptomole-detecting biosensor for alkaline phosphatase in an electroche mical immunoassay for 2,4- dichlorophenoacetic acid Y1 - 1996 ER - TY - JOUR A1 - Scheller, Frieder W. A1 - Schubert, Florian A1 - Bier, Frank Fabian T1 - Vom Biosensor zur Nanobiotechnologie Y1 - 1995 ER - TY - JOUR A1 - Jetzschmann, Katharina J. A1 - Jagerszki, Gyula A1 - Dechtrirat, Decha A1 - Yarman, Aysu A1 - Gajovic-Eichelmann, Nenad A1 - Gilsing, Hans-Detlev A1 - Schulz, Burkhard A1 - Gyurcsanyi, Robert E. A1 - Scheller, Frieder W. T1 - Vectorially Imprinted Hybrid Nanofilm for Acetylcholinesterase Recognition JF - Advanced functional materials N2 - Effective recognition of enzymatically active tetrameric acetylcholinesterase (AChE) is accomplished by a hybrid nanofilm composed of a propidium-terminated self-assembled monolayer (Prop-SAM) which binds AChE via its peripheral anionic site (PAS) and an ultrathin electrosynthesized molecularly imprinted polymer (MIP) cover layer of a novel carboxylate-modified derivative of 3,4-propylenedioxythiophene. The rebinding of the AChE to the MIP/Prop-SAM nanofilm covered electrode is detected by measuring in situ the enzymatic activity. The oxidative current of the released thiocholine is dependent on the AChE concentration from approximate to 0.04 x 10(-6) to 0.4 x 10(-6)m. An imprinting factor of 9.9 is obtained for the hybrid MIP, which is among the best values reported for protein imprinting. The dissociation constant characterizing the strength of the MIP-AChE binding is 4.2 x 10(-7)m indicating the dominant role of the PAS-Prop-SAM interaction, while the benefit of the MIP nanofilm covering the Prop-SAM layer is the effective suppression of the cross-reactivity toward competing proteins as compared with the Prop-SAM. The threefold selectivity gain provided by i) the shape-specific MIP filter, ii) the propidium-SAM, iii) signal generation only by the AChE bound to the nanofilm shows promise for assessing AChE activity levels in cerebrospinal fluid. KW - acetylcholinesterase KW - biomimetic sensors KW - molecularly imprinted electropolymers KW - peripheral anionic site KW - propidium Y1 - 2015 U6 - https://doi.org/10.1002/adfm.201501900 SN - 1616-301X SN - 1616-3028 VL - 25 IS - 32 SP - 5178 EP - 5183 PB - Wiley-VCH CY - Weinheim ER - TY - CHAP A1 - Asche, Hartmut A1 - Böckmann, Christine A1 - Laue, Steffen A1 - Löhmannsröben, Hans-Gerd A1 - Lemke, Matthias A1 - Schober, Lars A1 - Reich, Oliver A1 - Lück, Erika A1 - Schütte, Marc A1 - Domsch, Horst A1 - Makower, Alexander A1 - Scheller, Frieder W. A1 - Stöcklein, Wolfgang A1 - Wollenberger, Ursula A1 - Schultze, Rainer A1 - Hengstermann, Theo A1 - Schael, Frank T1 - Umweltforschung für das Land Brandenburg : Projekt Umweltanalytik / Umweltmeßtechnik / Informationssysteme Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-3862 SP - 176 EP - 227 ER - TY - CHAP A1 - Lück, Erika A1 - Balderjahn, Ingo A1 - Kamm, Birgit A1 - Greil, Holle A1 - Wallschläger, Hans-Dieter A1 - Jessel, Beate A1 - Böckmann, Christine A1 - Oberhänsli, Roland A1 - Soyez, Konrad A1 - Schmeer, Ernst A1 - Blumenstein, Oswald A1 - Berndt, Klaus-Peter A1 - Edeling, Thomas A1 - Friedrich, Sabine A1 - Kaden, Klaus A1 - Scheller, Frieder W. A1 - Petersen, Hans-Georg A1 - Asche, Hartmut A1 - Bronstert, Axel A1 - Giest, Hartmut A1 - Gaedke, Ursula A1 - Löhmannsröben, Hans-Gerd A1 - Jeltsch, Florian A1 - Jänkel, Ralph A1 - Gzik, Axel A1 - Bork, Hans-Rudolf A1 - Bork, Hans-Rudolf T1 - Umweltforschung für das Land Brandenburg : Arbeitsgruppen und Professuren Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-3797 ER - TY - JOUR A1 - Bier, Frank Fabian A1 - Ehrentreich-Förster, Eva A1 - Scheller, Frieder W. A1 - Makower, Alexander A1 - Eremenko, A. V. A1 - Wollenberger, Ursula A1 - Bauer, Christian G. A1 - Pfeiffer, Dorothea A1 - Micheel, Burkhard T1 - Ultrasensitive biosensors Y1 - 1996 ER - TY - JOUR A1 - Szeponik, Jan A1 - Möller, B. A1 - Pfeiffer, Dorothea A1 - Lisdat, Fred A1 - Wollenberger, Ursula A1 - Makower, Alexander A1 - Scheller, Frieder W. T1 - Ultrasensitive bienzyme sensor for adrenaline Y1 - 1997 ER - TY - JOUR A1 - Makower, Alexander A1 - Eremenko, A. V. A1 - Streffer, Katrin A1 - Wollenberger, Ursula A1 - Scheller, Frieder W. T1 - Tyrosinase-glucose dehydrogenase substrate-recycling biosensor : a highly sensitive measurement of phenolic compounds Y1 - 1996 ER - TY - JOUR A1 - Scheller, Frieder W. T1 - Tribute to Guenter Gauglitz (Editorial) Y1 - 2009 UR - http://www.springerlink.com/content/100417 U6 - https://doi.org/10.1007/s00216-008-2548-0 SN - 1618-2642 ER - TY - JOUR A1 - Scheller, Frieder W. A1 - Bier, Frank Fabian T1 - Trends in der Bioanalytik Y1 - 2002 ER -