Source abstract
Abstract
Abstract Electroosmotic pumps have been widely used in microfluidic systems. However, traditional high‐voltage (HV)‐sources are bulky in size and induce numerous accessional reactions, which largely reduce the system's portability and efficiency. Herein, a motion‐controlled, highly efficient micro‐flow pump based on triboelectricity driven electroosmosis is reported. Utilizing the triboelectric nanogenerator (TENG), a strong electric field can be formed between two electrodes in the microfluidic channel with an electric double layer, thus driving the controllable electroosmotic flow by biomechanical movements. The performance and operation mechanism of this triboelectric electroosmotic pump (TEOP) is systematically studied and analyzed using a basic free‐standing mode TENG. The TEOP produces ≈600 nL min−1 micro‐flow with a Joule heat down to 1.76 J cm−3 nL−1 compared with ≈50 nL min−1 and 8.12 J cm−3 nL−1 for an HV‐source. The advantages of economy, efficiency, portability, and safety render the TEOP a more conducive option to achieve wider applications in motion‐activated micro/nanofluidic transportation and manipulation.
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Research context
OpenAlex topics: Advanced Sensor and Energy Harvesting Materials · Innovative Energy Harvesting Technologies · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Applied Physics State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing 400044 P. R. China
School of Artificial Intelligence Shanghai University Shanghai 200444 P. R. China
College of Physics and Electronic Engineering Chongqing Normal University Chongqing 401331 P. R. China
Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 100083 P. R. China
School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
Funding
National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities
References (41)
Show source-provided references
8. Cui P. · J. Pharmaceut. Biomed. · 2019 · 9 · 238