Surface modification of stimuli responsive polymers by wrinkling method: surface morphology and bacterial adsorption studies

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Demiryürek, Rıdvan (2014) Surface modification of stimuli responsive polymers by wrinkling method: surface morphology and bacterial adsorption studies. [Thesis]

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Abstract

Stimuli responsive polymers are the great candidates to engineer the surfaces that can switch between different states of surface energy. Integration of those responsive polymers to the systems, where filtration or a controlled adsorption of the microscopic organisms are targeted, offers a very practical and functional pathway. Topographical modifications of these polymers may improve the wettability limits of the smart surfaces and the control over the adhesion of microscopic organisms. In this work, we present a useful method to form 2 distinct sets of surface modified thin films: Poly(Nisopropylacrylamide) [PNIPAAm] and poly(hydroxyethylmethacrylate-coperfluorodecylacrylate) [poly(HEMA-co-PFA)]. Surface modifications of the thin films are achieved by the initiated chemical vapor deposition (iCVD) of the polymers on stretched poly(dimethylsiloxane) (PDMS) molds in order to provide simultaneous chemical and morphological treatment. The surface properties of the flat and wrinkled thin films are analyzed. Wrinkled PNIPAAm surfaces are also investigated for bacterial attachment activity.
Item Type: Thesis
Uncontrolled Keywords: Stimuli responsive polymers. -- Initiated chemical vapor deposition. -- Surface wettability. -- Buckling. -- Bacterial attachment. -- Uyarıya duyarlı polimerler. -- Kimyasal buhar çökeltme metodu. -- Yüzey ıslanırlığı. -- Kırısıklanma. -- Bakteriyel bağlanma.
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Depositing User: IC-Cataloging
Date Deposited: 13 Oct 2015 15:40
Last Modified: 26 Apr 2022 10:05
URI: https://research.sabanciuniv.edu/id/eprint/27313

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