Optically-Integrated Microfluidic Tweezer Sensor

Zhaotong Song; Cun Zhao; Binhai Zhu

doi:10.62051/ijcsit.v7n3.03

Authors

Zhaotong Song
Cun Zhao
Binhai Zhu

DOI:

https://doi.org/10.62051/ijcsit.v7n3.03

Keywords:

Fiber-optic tweezers, Microfluidics, Liquid viscosity sensing

Abstract

Liquid viscosity measurement plays a crucial role in biomedical and clinical diagnostics. However, conventional viscosity measurement techniques face risks of cell damage and sample contamination in biomedical applications. In this study, we propose a liquid viscosity sensor that integrates microfluidic technology with fiber-optic tweezers. The sensor captures cells in a non-contact manner using optical tweezers and measures viscosity by analyzing the cells’ dynamic response under viscous drag. When the liquid flows, the trapped cells exhibit microscale displacements within the optical trap, which are directly related to the liquid viscosity.

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