Journal Article

PreJuSER-40545

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Constant-current-mode LAPS (CLAPS) for the detection of penicillin

Yoshinobu, T. ; Ecken, H.FZJ* ; Poghossian, A.FZJ* ; Simonis, A.FZJ* ; Iwasaki, H. ; Lüth, H.FZJ* ; Schöning, M. J.FZJ*

2001
Wiley-VCH-Verl. Weinheim

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Please use a persistent id in citations: doi:10.1002/1521-4109(200105)13:8/9<733::AID-ELAN733>3.0.CO;2-N

Abstract: A software feedback control system for the constant-current-mode operation of the light-addressable potentiometric sensor (LAPS) was developed. The constant-current-mode LAPS (CLAPS) is suitable for online monitoring and recording of changes in the pH value or the ion concentration. An enzyme LAPS was fabricated by adsorptive immobilization of penicillinase on the pH-sensitive layer of Ta2O5 This sensor was operated in the constant-current-mode and the detection limit for penicillin G was found to be at least as low as 100 muM.

Keyword(s): J ; light-addressable potentiometric sensor (LAPS) CLAPS (auto) ; chemical sensor (auto) ; Ta2O5 (auto) ; penicillin (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut für Halbleiterschichten und Bauelemente (ISG-1)
2. Institut für Bio- und Chemosensoren (ISG-2)

Research Program(s):

1. Ionen- und Lithographietechnik (29.86.0)
2. Halbleiterschichtsysteme und Mesoskopische Strukturen (29.89.0)
3. Halbleiterbauelemente und Analytik (29.88.0)

Appears in the scientific report 2001

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