000150594 001__ 150594 000150594 005__ 20240619091111.0 000150594 0247_ $$2doi$$a10.1016/j.electacta.2013.08.025 000150594 0247_ $$2ISSN$$a0013-4686 000150594 0247_ $$2ISSN$$a1873-3859 000150594 0247_ $$2WOS$$aWOS:000330491500099 000150594 037__ $$aFZJ-2014-00643 000150594 082__ $$a540 000150594 1001_ $$0P:(DE-Juel1)142466$$aSchusser, S.$$b0$$eCorresponding author 000150594 245__ $$aDegradation of thin poly(lactic acid) films: Characterization by capacitance–voltage, atomic force microscopy, scanning electron microscopy and contact-angle measurements. 000150594 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2013 000150594 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1391670507_21806 000150594 3367_ $$2DataCite$$aOutput Types/Journal article 000150594 3367_ $$00$$2EndNote$$aJournal Article 000150594 3367_ $$2BibTeX$$aARTICLE 000150594 3367_ $$2ORCID$$aJOURNAL_ARTICLE 000150594 3367_ $$2DRIVER$$aarticle 000150594 500__ $$3POF3_Assignment on 2016-02-29 000150594 520__ $$aFor the development of new biopolymers and implantable biomedical devices with predicted biodegradability, simple, non-destructive, fast and inexpensive techniques capable for real-time in situ testing of the degradation kinetics of polymers are highly appreciated. In this work, a capacitive field-effect electrolyte–insulator–semiconductor (EIS) sensor has been applied for real-time in situ monitoring of degradation of thin poly(d,l-lactic acid) (PDLLA) films over a long-time period of one month. Generally, the polymer-modified EIS (PMEIS) sensor is capable of detecting any changes in the bulk, surface and interface properties of the polymer (e.g., thickness, coverage, dielectric constant, surface potential) induced by degradation processes. The time-dependent capacitance–voltage (C–V) characteristics of PMEIS structures were used as an indicator of the polymer degradation. To accelerate the PDLLA degradation, experiments were performed in alkaline buffer solution of pH 10.6. The results of these degradation measurements with the EIS sensor were verified by the detection of lactic acid (product of the PDLLA degradation) in the degradation medium. In addition, the micro-structural and morphological changes of the polymer surface induced by the polymer degradation have been systematically studied by means of scanning-electron microscopy, atomic-force microscopy, optical microscopy, and contact-angle measurements. 000150594 536__ $$0G:(DE-HGF)POF2-423$$a423 - Sensorics and bioinspired systems (POF2-423)$$cPOF2-423$$fPOF II$$x0 000150594 536__ $$0G:(DE-HGF)POF2-453$$a453 - Physics of the Cell (POF2-453)$$cPOF2-453$$fPOF II$$x1 000150594 588__ $$aDataset connected to CrossRef, juser.fz-juelich.de 000150594 7001_ $$0P:(DE-HGF)0$$aMenzel, S.$$b1 000150594 7001_ $$0P:(DE-Juel1)128668$$aBäcker, M.$$b2 000150594 7001_ $$0P:(DE-Juel1)145544$$aLeinhos, M.$$b3 000150594 7001_ $$0P:(DE-Juel1)128717$$aPoghossian, A.$$b4 000150594 7001_ $$0P:(DE-HGF)0$$aWagner, P.$$b5 000150594 7001_ $$0P:(DE-Juel1)128727$$aSchöning, M. 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