Highly Conductive and Flexible Silver Nanowire-Based Microelectrodes on Biocompatible Hydrogel

• Published in: ACS applied materials & interfaces Vol. 6; no. 21; pp. 18401 - 18407
• Main Authors: Ahn, Yumi, Lee, Hyungjin, Lee, Donghwa, Lee, Youngu
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 12-11-2014
• Subjects: Coated Materials, Biocompatible - chemistry; Electric Conductivity; Hydrogel, Polyethylene Glycol Dimethacrylate - chemistry; Microelectrodes; Nanowires - chemistry; Silver - chemistry; silver nanowire; bioelectronic device; biocompatible electrode; hydrogel
• ISSN: 1944-8244; 1944-8252
• DOI: 10.1021/am504462f

We successfully fabricated silver nanowire (AgNW)-based microelectrodes on various substrates such as a glass and polydimethylsiloxane by using a photolithographic process for the first time. The AgNW-based microelectrodes exhibited excellent electrical conductivity and mechanical flexibility. We also demonstrated the direct transfer process of AgNW-based microelectrodes from a glass to a biocompatible polyacrylamide-based hydrogel. The AgNW-based microelectrodes on the biocompatible hydrogel showed excellent electrical performance. Furthermore, they showed great mechanical flexibility as well as superior stability under wet conditions. We anticipate that the AgNW-based microelectrodes on biocompatible hydrogel substrates can be a promising platform for realization of practical bioelectronics devices.