Low-consumption photoacoustic method to measure liquid viscosity

Yingying Zhou; Chao Liu; Xiazi Huang; Xiang Qian; Lidai Wang; Puxiang Lai

doi:10.1364/BOE.444144

Low-consumption photoacoustic method to measure liquid viscosity

Biomed Opt Express. 2021 Oct 27;12(11):7139-7148. doi: 10.1364/BOE.444144. eCollection 2021 Nov 1.

Authors

Yingying Zhou^{1

2

3

4}, Chao Liu^{1

4}, Xiazi Huang^{2

3

4}, Xiang Qian⁵, Lidai Wang^{1

6

7}, Puxiang Lai^{2

3

8}

Affiliations

¹ Department of Biomedical Engineering, City University of Hong Kong, Hong Kong.
² Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong.
³ The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, China.
⁴ These authors contributed equally to this work.
⁵ Tsinghua-Shenzhen International Graduate School, Tsinghua University, Shenzhen, China.
⁶ City University of Hong Kong Shenzhen Research Institute, Shenzhen, China.
⁷ lidawang@cityu.edu.hk.
⁸ puxiang.lai@polyu.edu.hk.

Abstract

Viscosity measurement is important in many areas of biomedicine and industry. Traditional viscometers are usually time-consuming and require huge sample volumes. Microfluidic viscometry may overcome the challenge of large sample consumption but suffers from a long process time and a complicated structure design and interaction. Here, we present a photoacoustic method that measures the liquid viscosity in a simple microfluidic-based tube. This new viscosity measurement method embraces fast detection speed and low fluid consumption, offering a new tool for efficient and convenient liquid viscosity measurement in a broad range of applications.