TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Beckers, L.
A1  - Schaub, A.
A1  - Zander, W.
A1  - Schubert, J.
A1  - Mesters, S.
A1  - Kordos, P.
A1  - Lüth, H.
T1  - A novel silicon-based pH sensor prepared by pulsed laser deposition technique
JF  - Proceedings of Eurosensors X, the 10th European Conference on Solid-State Transducers, September 8-11, 1996, Leuven, Belgium / [KU Leuven]. Puers, Robert.  Vol. 3.
Y1  - 1996
SN  - 90-803282-1-9
N1  - Eurosensors ; (10, 1996, Louvain) Eurosensors, the European Conference on Solid-State Transducers ; (10 : ; 1996.09.08-11 : ; Leuven)
SP  - 781
EP  - 784
PB  - Catholic University Leuven
CY  - Heverlee, Belgium
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Arzdorf, M.
A1  - Mulchandani, P.
A1  - Chen, W.
A1  - Mulchandani, A.
T1  - Towards a capacitive enzyme sensor for direct determination of organophosphorus pesticides: Fundamentals studies and aspects of development
JF  - Sensors. 3 (2003), H. 6
Y1  - 2003
SN  - 1424-8220
SP  - 119
EP  - 127
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Arzdorf, M.
A1  - Mulchandani, P.
A1  - Chen, W.
A1  - Mulchandani, A.
T1  - A capacitive field-effect sensor for the direct determination of organophosphorus pesticides
JF  - Sensors and Actuators B. 91 (2003), H. 1-3
Y1  - 2003
SN  - 0925-4005
SP  - 92
EP  - 97
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Poghossian, Arshak
A1  - Han, Yinhua
A1  - Offenhäusser, Andreas
A1  - Ingebrandt, Sven
T1  - Markierungsfreie DNA-Detektion mit Silizium-Feldeffekt-Sensoren – Messeffekte oder Artefakte?
JF  - tm - Technisches Messen . 74 (2007), H. 9
Y1  - 2007
SN  - 0171-8096
SP  - 466
EP  - 476
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Poghossian, Arshak
T1  - pH and ion sensitivity of a field-effect EIS (electrolyte-insulator-semiconductor) sensor covered with polyelectrolyte multilayers
JF  - Journal of Solid State Electrochemistry. 13 (2009), H. 1
Y1  - 2009
SN  - 1433-0768
N1  - This manuscript is an invited paper to the special issue on “Solid-state potentiometric sensors” (Guest editor: Johan Bobacka).
SP  - 115
EP  - 122
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Abouzar, Maryam H.
A1  - Ingebrandt, Sven
A1  - Platen, Johannes
A1  - Offenhäusser, Andreas
A1  - Poghossian, Arshak
ED  - Comini, Elisabetta
T1  - Towards label-free detection of charged macromolecules using field-effect-based structures : Scaling down from capacitive EIS sensor over ISFET to nano-scale devices
JF  - Nanostructured materials and hybrid composites for gas sensors and biomedical applications : symposium held April 18-20, 2006, San Francisco , California, U.S.A.
Y1  - 2006
SN  - 9781558998711
IS  - paper 0915-R05-04
SP  - 89
EP  - 94
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Silicon-based biochemical sensors
JF  - CNI - The Center of Nanoelectronic Systems for Information Technology
Y1  - 2003
SP  - 165
EP  - 170
PB  - Foschungszentrum Jülich
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Novel approaches to design siliconbased field-effect sensors
JF  - Electrochemical Microsystem Technologies, New Trends in Electrochemistry Vol. 2
Y1  - 2002
SP  - 384
EP  - 408
PB  - Taylor & Francis
CY  - London New York
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Feldeffektstrukturen mit AgI-Aufdampfschichten als chemische Sensoren
JF  - KfK-Bericht. 5195 (1993)
Y1  - 1993
SN  - 0303-4003
SP  - 1
EP  - 95
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - "Playing around“ with field-effect sensors on the basis of EIS structures, LAPS and ISFETs
JF  - Sensors. 5 (2005), H. 3
Y1  - 2005
SN  - 1424-8220
SP  - 126
EP  - 138
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - "Voltohmmetry" – a new transducer principle for electrochemical sensors
JF  - Ultrathin electrochemical chemo- and biosensors : technology and performance / Vladimir M. Mirsky
Y1  - 2004
SN  - 3-540-21285-X
SP  - 117
EP  - 140
PB  - Springer
CY  - Berlin [u.a.]
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Microelectronics contacts (bio-)chemistry – Semiconductor-based sensors
JF  - Biologi Italiani. 8 (2001)
Y1  - 2001
SN  - 0392-2510
SP  - 5
EP  - 10
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Silicon-based field-effect structures – From dielectrics to bioelectronics
JF  - Dielectrics in emerging technologies : proceedings of the international symposium ; [papers presented at the First International Symposium on Science and Technology of Dielectrics in Emerging Fields held from 27th April to 2nd May 2003 in Paris, France] / sponsoring divisions: Dielectric Science and Technology, Electronics. Ed.: D. Misra.
Y1  - 2003
SN  - 1-56677-346-6
N1  - International Symposium on Science and Technology of Dielectrics in Emerging Fields ; (1, 2003, Paris)
SP  - 31
EP  - 37
PB  - Electrochemical Society
CY  - Pennington, NJ
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
T1  - Silicon recognizes biochemical parameters: Microchips for analytical sensor applications
JF  - American Laboratory. 32 (2000), H. 16
Y1  - 2000
SN  - 0044-7749
SP  - 24
EP  - 31
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Worschech, L.
A1  - Ossau, W.
A1  - Landwehr, G.
T1  - Uniaxiale und planare Verspannung von Störstellenkomplexen in ZnSe/GaAs Schichten
Y1  - 1997
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Münster, 17.-21. März 1997, Verhandl. DPG (VI) 32, HL 11.51 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Worschech, L.
A1  - Ossau, W.
A1  - Fischer, C.
T1  - Characterization of structural defects in MBE grown ZnSe
JF  - Materials Science and Engineering B. 43 (1997), H. 1-3
Y1  - 1997
SN  - 0921-5107
N1  - Beitrag zum EMRS - Spring Meeting, 4.-7.06.1996 Strasbourg
SP  - 29
EP  - 32
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Worschech, L.
A1  - Fischer, C.
A1  - Schenk, H. (u.a.)
T1  - Linearly Polarized Luminescence associated with Structural Defects in MBE grown ZnSe
JF  - Blue laser and light emitting diodes : [International Symposium on Blue Laser and Light Emitting Diodes (ISBLLED), Chiba, Japan , March 5 - 7, 1996] / ed. by A. Yoshikawa
Y1  - 1996
SN  - 4-274-90096-7
SP  - 421
EP  - 424
PB  - Ohmsha [u.a.]
CY  - Tokyo
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Uebbing, H.
A1  - von der Osten, W.
A1  - Hommel, D. (u.a.)
T1  - Exciton and Phonon Quantization in Ultrathin Epitaxial Layers of ZnSe
JF  - 23rd International Conference on the Physics of Semiconductors : Berlin, Germany, July 21 - 26, 1996 / ed.: Matthias Scheffler ...
Y1  - 1996
SN  - 981-02-2777-9
SP  - 365
EP  - 368
PB  - World Scientific
CY  - Singapore [u.a.]
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Uebbing, H.
A1  - Stolz, H.
A1  - von der Osten, W. (u.a.)
T1  - Resonance Brillouin Scattering from Quantized Exciton-Polaritons in Ultrathin Epitaxial Layers of ZnSe
JF  - Il nuovo Cimento D. 17 (1995)
Y1  - 1995
SN  - 0392-6737
SP  - 1753
EP  - 1757
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shen, J.
A1  - Ossau, W.
A1  - Landwehr, G. (u.a.)
T1  - Optically Detected Cyclotron Resonance (ODCR) in n- and p-type GaAs/AlGaAs Heterostructures
Y1  - 1995
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Berlin, 20.-24. März 1995, Verhandl. DPG (VI) 30, HL 33.79 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shao, Hua
A1  - Scholl, W.
A1  - Hommel, D. (u.a.)
T1  - Quantum Corrections to Magnetotransport in n-ZnSe Grown by MBE
Y1  - 1995
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Berlin, 20.-24. März 1995, Verhandl. DPG (VI) 30, HL 28.76 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shao, H.
A1  - Scholl, H.
A1  - Gerschütz, J. (u.a.)
T1  - Shubnikov - de Haas Oscillations of a Two - dimensional Electron Gas in a Modulation - Doped Zn0.80Cd0.20Se/ZnS0.06Se 0.94 Single Quantum Well
JF  - Solid State Communications. 100 (1996), H. 11
Y1  - 1996
SN  - 0038-1098
SP  - 739
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shao, H.
A1  - Gerschütz, J.
A1  - Scholl, S. (u.a.)
T1  - Quantum Interference Effects in Highly Doped n-ZnSe Epitaxy Layers Grown by MBE
JF  - physica status solidi (b). 206 (1998), H. 2
Y1  - 1998
SN  - 0370-1972
SP  - 575
EP  - 582
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shanjia, Xu
A1  - Xinzhang, Wu
A1  - Boege, P.
T1  - Scattering Characteristics of 3-D Discontinuity Consisting of Semiconductor Sample Filled in Waveguide with Gaps
JF  - International Journal of Infrared and Millimeter Waves. 14 (1993), H. 10
Y1  - 1993
SN  - 0195-9271
SP  - 2155
EP  - 2190
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Scholl, S.
A1  - Waag, A.
A1  - Hommel, D. (u.a.)
T1  - Two-dimensional Shubnikov–de Haas oscillations in modulation-doped CdTe/CdMnTe quantum-well structures
JF  - Applied Physics Letters. 62 (1993), H. 23
Y1  - 1993
SP  - 3010
EP  - 3012
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Scholl, S.
A1  - Gerschütz, F.
A1  - Fischer, F. (u.a.)
T1  - Persistent Photoconductivity in Halogen-doped Cd1-X ZnX Te, Cd1-X MnX Te and Cd1-X-MgX -Te Layers
JF  - 22nd International Conference on the Physics of Semiconductors : Vancouver, Canada, August 15 - 19, 1994 / ed. David J. Lockwood
Y1  - 1995
SN  - 981-02-2021-9
SP  - 2423
EP  - 2426
PB  - World Scientific
CY  - Singapore [u.a.]
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Scholl, S.
A1  - Gerschütz, F.
A1  - Fischer, A. (u.a.)
T1  - Persistent Photoconductivity in CdTe-based  II-VI-Semiconductors
JF  - Solid State Communications. 91 (1994), H. 6
Y1  - 1994
SN  - 0038-1098
SP  - 491
EP  - 495
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Scholl, S.
A1  - Gerschütz, F.
A1  - Fischer, A.
T1  - Quantum Hall Effect in CdTe/Cd 1-X MgX Te Heterostructures
JF  - Solid State Communications. 94 (1995), H. 11
Y1  - 1995
SN  - 0038-1098
SP  - 935
EP  - 938
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Ress, H. R.
A1  - Spahn, W.
A1  - Ebel, R. (u.a.)
T1  - Hochaufgelöste Röntgenbeugung zur Untersuchung lateraler Inhomogenitäten pseudomorpher ZnSe - Schichten auf GaAs - Substraten
Y1  - 1996
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Regensburg, 25.-29. März 1996, Verhandl. DPG (VI) 31, HL 16.82 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Ress, H. R.
A1  - Spahn, W.
A1  - Ebel, R. (u.a.)
T1  - Start of misfit relaxation in GaAs-ZnSe heterostructures
JF  - Journal of Crystal Growth. 184-185 (1998)
Y1  - 1998
SN  - 0022-0248
SP  - 90
EP  - 94
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Mende, H. H.
T1  - Simulation of stray-field coupling between stacked grain-orientedthree-percent SiFe sheets concerning domain structure and stray-fieldprofile
JF  - IEEE Transactions on Magnetics. 24 (1988), H. 1
Y1  - 1988
SN  - 0018-9464
SP  - 631
EP  - 634
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Mende, H. H.
T1  - Stray field profile of grain-oriented rectangular 3% SiFe sheets in dependence on vertical and in-plane magnetic fields
JF  - Physica Status Solidi (A). 100 (1987), H. 2
Y1  - 1987
SN  - 0031-8965
SP  - 621
EP  - 632
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Mende, H. H.
T1  - Interaction between laminated g.o.3% SiFe sheets due to gap-stray fields and edge peaks
JF  - Physica Scripta. 39 (1989), H. 3
Y1  - 1989
SN  - 0031-8949
SP  - 397
EP  - 400
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Lampey, H.
A1  - Mende, H. H.
T1  - Stray-field profile of single M-shaped Si-Fe transformer sheets and the resulting interaction in a stack
JF  - Physica Scripta. 39 (1989), H. 4
Y1  - 1989
SN  - 0031-8949
SP  - 520
EP  - 522
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Lampey, H.
T1  - The stray-field structure of a HI-B sheet in the vicinity of laser scratches
JF  - Journal of Magnetism and Magnetic Materials. 75 (1988), H. 3
Y1  - 1988
SN  - 0304-8853
SP  - 339
EP  - 344
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Lampey, H.
T1  - Zum Einfluß der Streufeldkopplung auf die magnetischen Eigenschaften und den Wirkungsgrad handelsüblicher Transformatorkerne aus kornorientierten Silizium-Eisen Elektroblechen
JF  - Electrical Engineering (Archiv fur Elektrotechnik). 72 (1989), H. 6
Y1  - 1989
SN  - 0948-7921
SP  - 395
EP  - 405
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Lampey, H.
T1  - Ein Beispiel zum Einfluß der Bauform auf die statische Streufeldstruktur von Elektroblechen aus Silizium-Eisen: Der M-Schnitt
JF  - Elektrotechnik und Informationstechnik : e & i. 106 (1989), H. 3
Y1  - 1989
SN  - 0932-383X
SP  - 100
EP  - 106
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Kubacki, F.
A1  - Gutowski, J.
A1  - Hommel, D.
T1  - Effekte biaxialer und uniaxialer Verspannung auf das exzitonische Spektrum von ZnSe/ GaAs-Heterostrukturen
Y1  - 1995
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Berlin, 20.-24. März 1995, Verhandl. DPG (VI) 30, HL 33.38 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Heil, Günter
T1  - Modeling and Graphic Presentation of Acid–Base Titration Curves. Presentation of an Alternative Method
JF  - The Chemical Educator. 7 (2002), H. 6
Y1  - 2002
SN  - 1430-4171
SP  - 339
EP  - 346
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Hagelskamp, B
A1  - Mende, H. H.
T1  - Streufeldkopplung zwischen geschichteten Transformator-M-Schnitten aus kornorientiertem und nicht-orientiertem SiFe-Material
Y1  - 1987
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Münster, 9.-13. März 1987, Verhandl. DPG (VI) 22, AM-14.28 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Gerschütz, J.
A1  - Scholl, S.
A1  - Fischer, A. (u.a.)
T1  - Quanten-Hall-Effekt in CdTe/Cd1-X MgX Te Heterostrukturen
Y1  - 1995
N1  - Als Poster vorgelegt auf der Frühjahrstagung der DPG in Berlin, 20.-24. März 1995, Verhandl. DPG (VI) 30, HL 33.52 / Physikalisches Institut der Universität Würzburg.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Böttcher, A.
T1  - Mapping of magnetic domain structures inside of ferromagnetic materials by X-ray topography
JF  - Physica Status Solidi (A). 113 (1989)
Y1  - 1989
SN  - 0031-8965
SP  - 551
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Boege, P.
A1  - Shanjia, Xu
A1  - Xinzhang, Wu (u.a.)
T1  - Improved conductivity-measurement of semiconductor epitaxial layers by means of the contactless microwave method
JF  - Conference digest : 10 - 14 January 1994, San Diego, California / International Conference on Millimeter and Submillimeter Waves and Applications / Mohammed N. Afsar, chair/ed.
Y1  - 1994
SN  - 0-8194-1558-8
N1  - Serie Proceedings / SPIE, The International Society for Optical Engineering ; 2250
SP  - 649
EP  - 658
PB  - SPIE
CY  - Bellingham, Wash.
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
T1  - Zur Inhomogenität des inneren Feldes und der Flußdichte von kornorientierten Elektroblechen aus Silizium-Eisen bei Fehlorientierungen in der Blechebene
JF  - Electrical Engineering (Archiv fur Elektrotechnik). 72 (1989), H. 1
Y1  - 1989
SN  - 0948-7921
SP  - 51
EP  - 57
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
T1  - Modellrechnungen und Streufeldmessung: Eine Möglichkeit zur zerstörungsfreien Kristallstruktur-Analyse von kornorientiertem Elektroblech aus Silizium-Eisen
JF  - Elektrotechnik und Informationstechnik : e & i. 106 (1989), H. 2
Y1  - 1989
SN  - 0932-383X
SP  - 67
EP  - 71
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
T1  - Calculation of the surface stray field and the demagnetizing field of a g.o. 3% SiFe sheet caused by a misoriented grain
JF  - Physica Scripta. 39 (1989), H. 4
Y1  - 1989
SN  - 0031-8949
SP  - 531
EP  - 534
ER  - 
TY  - JOUR
A1  - Schwabedal, Justus T. C.
A1  - Sippel, Daniel
A1  - Brandt, Moritz D.
A1  - Bialonski, Stephan
T1  - Automated Classification of Sleep Stages and EEG Artifacts in Mice with Deep Learning
N2  - Sleep scoring is a necessary and time-consuming task in sleep studies. In animal models (such as mice) or in humans, automating this tedious process promises to facilitate long-term studies and to promote sleep biology as a data-driven f ield. We introduce a deep neural network model that is able to predict different states of consciousness (Wake, Non-REM, REM) in mice from EEG and EMG recordings with excellent scoring results for out-of-sample data. Predictions are made on epochs of 4 seconds length, and epochs are classified as artifactfree or not. The model architecture draws on recent advances in deep learning and in convolutional neural networks research. In contrast to previous approaches towards automated sleep scoring, our model does not rely on manually defined features of the data but learns predictive features automatically. We expect deep learning models like ours to become widely applied in different fields, automating many repetitive cognitive tasks that were previously difficult to tackle.
Y1  - 2018
U6  - http://dx.doi.org/10.48550/arXiv.1809.08443
ER  - 
TY  - JOUR
A1  - Schusser, Sebastian
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Leinhos, Marcel
A1  - Wagner, Patrick
A1  - Schöning, Michael Josef
T1  - Characterization of biodegradable polymers with capacitive field-effect sensors
JF  - Sensors and actuators B: Chemical
N2  - In vitro studies of the degradation kinetic of biopolymers are essential for the design and optimization of implantable biomedical devices. In the presented work, a field-effect capacitive sensor has been applied for the real-time and in situ monitoring of degradation processes of biopolymers for the first time. The polymer-covered field-effect sensor is, in principle, capable to detect any changes in bulk, surface and interface properties of the polymer induced by degradation processes. The feasibility of this approach has been experimentally proven by using the commercially available biomedical polymer poly(D,L-lactic acid) (PDLLA) as a model system. PDLLA films of different thicknesses were deposited on the Ta₂O₅-gate surface of the field-effect structure from a polymer solution by means of spin-coating method. The polymer-modified field-effect sensors have been characterized by means of capacitance–voltage and impedance-spectroscopy method. The degradation of the PDLLA was accelerated by changing the degradation medium from neutral (pH 7.2) to alkaline (pH 9) condition, resulting in drastic changes in the capacitance and impedance spectra of the polymer-modified field-effect sensor.
KW  - Impedance spectroscopy
KW  - C–V method
KW  - Real-time monitoring
KW  - Poly(d,l-lacticacid)
KW  - (Bio)degradation
KW  - Field-effect sensor
Y1  - 2012
U6  - http://dx.doi.org/10.1016/j.snb.2012.07.099
SN  - 0925-4005
N1  - Part of special issue "Selected Papers from the 14th International Meeting on Chemical Sensors"
VL  - 187
SP  - 2
EP  - 7
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schusser, Sebastian
A1  - Poghossian, Arshak
A1  - Bäcker, Matthias
A1  - Krischer, M.
A1  - Leinhos, Marcel
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - An application of field-effect sensors for in-situ monitoring of degradation of biopolymers
JF  - Sensors and actuators B: Chemical
N2  - The characterization of the degradation kinetics of biodegradable polymers is mandatory with regard to their proper application. In the present work, polymer-modified electrolyte–insulator–semiconductor (PMEIS) field-effect sensors have been applied for in-situ monitoring of the pH-dependent degradation kinetics of the commercially available biopolymer poly(d,l-lactic acid) (PDLLA) in buffer solutions from pH 3 to pH 13. PDLLA films of 500 nm thickness were deposited on the surface of an Al–p-Si–SiO2–Ta2O5 structure from a polymer solution by means of spin-coating method. The PMEIS sensor is, in principle, capable to detect any changes in bulk, surface and interface properties of the polymer induced by degradation processes. A faster degradation has been observed for PDLLA films exposed to alkaline solutions (pH 9, pH 11 and pH 13).
Y1  - 2015
U6  - http://dx.doi.org/10.1016/j.snb.2014.10.058
SN  - 1873-3077 (E-Journal); 0925-4005 (Print)
VL  - 207, Part B
SP  - 954
EP  - 959
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schusser, Sebastian
A1  - Menzel, S.
A1  - Bäcker, Matthias
A1  - Leinhos, Marcel
A1  - Poghossian, Arshak
A1  - Wagner, P.
A1  - Schöning, Michael Josef
T1  - Degradation of thin poly(lactic acid) films: characterization by capacitance-voltage, atomic force microscopy, scanning electron microscopy and contact-angle measurements
JF  - Electrochimica Acta
Y1  - 2013
SN  - 1873-3859 (E-Journal); 0013-4686 (Print)
VL  - Vol. 113
SP  - 779
EP  - 784
PB  - Elsevier
CY  - Amsterdam
ER  -