Local measurement of liquid viscosity in optical tweezers

被引：3
|
作者：
Korzeniewska, Aleksandra K. [1 ]
Drobczynski, Slawomir [1 ]
机构：
[1] Wroclaw Univ Sci & Technol, Fac Fundamental Problems Technol, Dept Opt & Photon, Wybrzeze Wyspianskiego 27, PL-50370 Wroclaw, Poland
来源：
OPTICS AND LASERS IN ENGINEERING | 2023年 / 164卷
关键词：
Optical tweezers; Viscosity; Oscillation; Trap stiffness; Optical trapping; DETECTOR; CAMERA;
D O I：
10.1016/j.optlaseng.2023.107516
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present a modified method of measuring liquid viscosity in an optical tweezer system. The oscillating viscosity measurement was developed theoretically and then experimentally verified. The presented method enables quick measurement, does not require much space and the use of a camera enables other measurements, e.g. in the field of molecular biology, to be carried out in the same sample. Measurement of liquid viscosity using the presented method is possible for viscosities up to 2,5 mPa * s.
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页数：7
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