% 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{Schusser:150594,
author = {Schusser, S. and Menzel, S. and Bäcker, M. and Leinhos, M.
and Poghossian, A. and Wagner, P. and Schöning, M. J.},
title = {{D}egradation of thin poly(lactic acid) films:
{C}haracterization by capacitance–voltage, atomic force
microscopy, scanning electron microscopy and contact-angle
measurements.},
journal = {Electrochimica acta},
volume = {113},
issn = {0013-4686},
address = {New York, NY [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2014-00643},
pages = {779 - 784},
year = {2013},
abstract = {For the development of new biopolymers and implantable
biomedical devices with predicted biodegradability, simple,
non-destructive, fast and inexpensive techniques capable for
real-time in situ testing of the degradation kinetics of
polymers are highly appreciated. In this work, a capacitive
field-effect electrolyte–insulator–semiconductor (EIS)
sensor has been applied for real-time in situ monitoring of
degradation of thin poly(d,l-lactic acid) (PDLLA) films over
a long-time period of one month. Generally, the
polymer-modified EIS (PMEIS) sensor is capable of detecting
any changes in the bulk, surface and interface properties of
the polymer (e.g., thickness, coverage, dielectric constant,
surface potential) induced by degradation processes. The
time-dependent capacitance–voltage (C–V) characteristics
of PMEIS structures were used as an indicator of the polymer
degradation. To accelerate the PDLLA degradation,
experiments were performed in alkaline buffer solution of pH
10.6. The results of these degradation measurements with the
EIS sensor were verified by the detection of lactic acid
(product of the PDLLA degradation) in the degradation
medium. In addition, the micro-structural and morphological
changes of the polymer surface induced by the polymer
degradation have been systematically studied by means of
scanning-electron microscopy, atomic-force microscopy,
optical microscopy, and contact-angle measurements.},
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:000330491500099},
doi = {10.1016/j.electacta.2013.08.025},
url = {https://juser.fz-juelich.de/record/150594},
}