Triggering the Shrinking/Swelling Process in Thin Gel Layers on Conducting Surfaces by Applying an Appropriate Potential

ACS Applied Materials & Interfaces
Kamil MarciszMarcin Karbarz

Abstract

Negatively charged, pH-sensitive, very thin gel layers with accumulated hexaammineruthenium (II)/(III) were deposited on conducting surfaces. The gel was synthesized by applying an electrochemically induced free-radical polymerization method. This method allowed covering the electrode surface with an uniform and compact layer. The modified electrodes exhibited excellent current switch on/off behavior in response to changes in pH. However, the main goal of this study was to achieve the control of the layer thickness by changing the oxidation state of hexaammineruthenium. The layers could be reversibly swollen/shrinked by applying appropriate potentials.

References

Jan 9, 2008·The Journal of Physical Chemistry. B·Xiao-Jie JuYoung Moo Lee
Nov 1, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Dorothee GrieshaberFouzia Boulmedais
Dec 7, 2010·Journal of Controlled Release : Official Journal of the Controlled Release Society·Mio Hidaka, Ryo Yoshida
Mar 18, 2011·ACS Applied Materials & Interfaces·Abhinav AkhouryT Alan Hatton
Sep 30, 2016·ACS Applied Materials & Interfaces·Qiang Matthew ZhangMichael J Serpe
May 10, 2018·ACS Applied Materials & Interfaces·Daehoon HanHowon Lee
Jul 5, 2018·Chemical Communications : Chem Comm·Linya TangXiufang Wen

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