Multipoint viscosity measurements in microfluidic channels using optical tweezers

Stephen Keen, Alison Yao, Jonathan Leach, Roberto Di Leonardo, Chris Saunter, Gordon Love, Jonathan Cooper, Miles Padgett

Research output: Contribution to journalArticle

25 Citations (Scopus)
142 Downloads (Pure)

Abstract

We demonstrate the technique of multipoint viscosity measurements incorporating the accurate calibration of micron sized particles. We describe the use of a high-speed camera to measure the residual motion of particles trapped in holographic optical tweezers, enabling us to calculate the fluid viscosity at multiple points across the field-of-view of the microscope within a microfluidic system.

Original languageEnglish
Pages (from-to)2059-2062
Number of pages4
JournalLab on a Chip
Volume9
Issue number14
DOIs
Publication statusPublished - 2009

Cite this

Keen, S., Yao, A., Leach, J., Di Leonardo, R., Saunter, C., Love, G., Cooper, J., & Padgett, M. (2009). Multipoint viscosity measurements in microfluidic channels using optical tweezers. Lab on a Chip, 9(14), 2059-2062. https://doi.org/10.1039/b900934e