Aqueous power source integrated on a microfluidic chip

• 成果类型: Article
• 署名作者: Yeon, Song Yi; Kim, Yunju; Kang, Chung Mu; Park, Sanguk; Chung, Taek Dong
• 署名单位: Seoul National University (SNU)
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-13856
• DOI: 10.1073/pnas.242361012
• 发表日期: 2025-02-11
• 关键词: ion-exchange membranes; point; electrodialysis; dialysis; density

摘要

The growing demand for portable sensors for point- of- care (POC) and onsite health monitoring has led to significant interest in developing suitable power sources. In this study, we developed a microfluidic chip- integrated reverse electrodialysis (mu RED) system for ecofriendly power generation with monolithic operation. Leveraging its fully ionic characteristic, mu RED was successfully applied to an ionic diode, thereby demonstrating its capability for seamless integration. The feasibility of operating a bipolar electrode sensor without an external power supply was demonstrated, highlighting its broad applicability in electrochemical portable sensors. mu RED has great potential for future applications, including electrochemical sensors for POC diagnostics and wearable devices.