Wettability Patternable Hybrid Polymer Films Based on TiO2 and Fluorinated Polymer for Bioelectronics Applications

Shunsuke Yamamoto; Hiroyuki Kai

doi:10.1002/admi.202201736

Wettability Patternable Hybrid Polymer Films Based on TiO₂ and Fluorinated Polymer for Bioelectronics Applications

Shunsuke Yamamoto, Hiroyuki Kai

ENG - Applied Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Organic–inorganic hybrid films based on TiO₂ and a fluorinated polymer are fabricated, and their properties are investigated for bioelectronic applications. The analysis revealed that the preparation process requires (1) aging the blend solution before spin coating and (2) spin coating under humid conditions to obtain hydrophobic honeycomb-like surfaces. Ultraviolet (UV) irradiation changed the surface wettability to hydrophilic, and patterned irradiation resulted in hydrophobic-hydrophilic surface patterns. Patterned hybrid films have been used as substrates in both open microfluidics and organic electrochemical transistor applications. This multimodal application will open up an integrated biosensing device that collects body fluids and analyzes them on a single platform.

Original language	English
Article number	2201736
Journal	Advanced Materials Interfaces
Volume	9
Issue number	35
DOIs	https://doi.org/10.1002/admi.202201736
Publication status	Published - 2022 Dec 12

Keywords

hybrid polymer films
open microfluidic channels
organic electrochemical transistors

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering

Access to Document

10.1002/admi.202201736

Cite this

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title = "Wettability Patternable Hybrid Polymer Films Based on TiO2 and Fluorinated Polymer for Bioelectronics Applications",

abstract = "Organic–inorganic hybrid films based on TiO2 and a fluorinated polymer are fabricated, and their properties are investigated for bioelectronic applications. The analysis revealed that the preparation process requires (1) aging the blend solution before spin coating and (2) spin coating under humid conditions to obtain hydrophobic honeycomb-like surfaces. Ultraviolet (UV) irradiation changed the surface wettability to hydrophilic, and patterned irradiation resulted in hydrophobic-hydrophilic surface patterns. Patterned hybrid films have been used as substrates in both open microfluidics and organic electrochemical transistor applications. This multimodal application will open up an integrated biosensing device that collects body fluids and analyzes them on a single platform.",

keywords = "hybrid polymer films, open microfluidic channels, organic electrochemical transistors",

author = "Shunsuke Yamamoto and Hiroyuki Kai",

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Numbers JP18K14294, JP19K15413, JP21H01775, and JP21H01992. Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",

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AU - Kai, Hiroyuki

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AB - Organic–inorganic hybrid films based on TiO2 and a fluorinated polymer are fabricated, and their properties are investigated for bioelectronic applications. The analysis revealed that the preparation process requires (1) aging the blend solution before spin coating and (2) spin coating under humid conditions to obtain hydrophobic honeycomb-like surfaces. Ultraviolet (UV) irradiation changed the surface wettability to hydrophilic, and patterned irradiation resulted in hydrophobic-hydrophilic surface patterns. Patterned hybrid films have been used as substrates in both open microfluidics and organic electrochemical transistor applications. This multimodal application will open up an integrated biosensing device that collects body fluids and analyzes them on a single platform.

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KW - organic electrochemical transistors

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