% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Bcker:150606,
author = {Bäcker, M. and Rakowski, D. and Poghossian, A. and
Biselli, M. and Wagner, P. and Schöning, M. J.},
title = {{C}hip-based amperometric enzyme sensor system for
monitoring of bioprocesses by flow-injection analysis.},
journal = {Journal of biotechnology},
volume = {163},
number = {4},
issn = {0168-1656},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2014-00655},
pages = {371 - 376},
year = {2013},
abstract = {A microfluidic chip integrating amperometric enzyme sensors
for the detection of glucose, glutamate and glutamine in
cell-culture fermentation processes has been developed. The
enzymes glucose oxidase, glutamate oxidase and glutaminase
were immobilized by means of cross-linking with
glutaraldehyde on platinum thin-film electrodes integrated
within a microfluidic channel. The biosensor chip was
coupled to a flow-injection analysis system for
electrochemical characterization of the sensors. The sensors
have been characterized in terms of sensitivity, linear
working range and detection limit. The sensitivity evaluated
from the respective peak areas was 1.47, 3.68 and 0.28
μAs/mM for the glucose, glutamate and glutamine sensor,
respectively. The calibration curves were linear up to a
concentration of 20 mM glucose and glutamine and up to 10 mM
for glutamate. The lower detection limit amounted to be 0.05
mM for the glucose and glutamate sensor, respectively, and
0.1 mM for the glutamine sensor. Experiments in cell-culture
medium have demonstrated a good correlation between the
glutamate, glutamine and glucose concentrations measured
with the chip-based biosensors in a differential-mode and
the commercially available instrumentation. The obtained
results demonstrate the feasibility of the realized
microfluidic biosensor chip for monitoring of bioprocesses.},
cin = {PGI-8 / JARA-FIT / ICS-8},
ddc = {540},
cid = {I:(DE-Juel1)PGI-8-20110106 / $I:(DE-82)080009_20140620$ /
I:(DE-Juel1)ICS-8-20110106},
pnm = {423 - Sensorics and bioinspired systems (POF2-423) / 453 -
Physics of the Cell (POF2-453)},
pid = {G:(DE-HGF)POF2-423 / G:(DE-HGF)POF2-453},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000315156800004},
pubmed = {pmid:22465601},
doi = {10.1016/j.jbiotec.2012.03.014},
url = {https://juser.fz-juelich.de/record/150606},
}