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Light-Induced Water Splitting Causes High-Amplitude Oscillation of pH-Sensitive Layer-by-Layer Assemblies on TiO2

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Title
Light-Induced Water Splitting Causes High-Amplitude Oscillation of pH-Sensitive Layer-by-Layer Assemblies on TiO2
Author(s)
Sviatlana A. Ulasevich; Gerald Brezesinski; Helmuth Mçhwald; Peter Fratzl; Felix H. Schacher; Sergey K. Poznyak; Daria V. Andreeva; Ekaterina V. Skorb
Publication Date
2016-10
Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.55, no.42, pp.13001 - 13004
Publisher
WILEY-V C H VERLAG GMBH
Abstract
We introduce a simple concept of a light induced pH change, followed by high amplitude manipulation of the mechanical properties of an adjacent polymer film. Irradiation of a titania surface is known to cause water splitting, and this can be used to reduce the environmental pH to pH 4. The mechanical modulus of an adjacent pH sensitive polymer film can thus be changed by more than an order of magnitude. The changes can be localized, maintained for hours and repeated without material destruction. (c) 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://pr.ibs.re.kr/handle/8788114/3268
ISSN
1433-7851
Appears in Collections:
Center for Soft and Living Matter(첨단연성물질 연구단) > Journal Papers (저널논문)
Files in This Item:
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