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

doi:10.1039/b900934e

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

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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 language	English
Pages (from-to)	2059-2062
Number of pages	4
Journal	Lab on a Chip
Volume	9
Issue number	14
DOIs	https://doi.org/10.1039/b900934e
Publication status	Published - 2009

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10.1039/b900934e

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title = "Multipoint viscosity measurements in microfluidic channels using optical tweezers",

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.",

author = "Stephen Keen and Alison Yao and Jonathan Leach and {Di Leonardo}, Roberto and Chris Saunter and Gordon Love and Jonathan Cooper and Miles Padgett",

year = "2009",

doi = "10.1039/b900934e",

language = "English",

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T1 - Multipoint viscosity measurements in microfluidic channels using optical tweezers

AU - Keen, Stephen

AU - Yao, Alison

AU - Leach, Jonathan

AU - Di Leonardo, Roberto

AU - Saunter, Chris

AU - Love, Gordon

AU - Cooper, Jonathan

AU - Padgett, Miles

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

U2 - 10.1039/b900934e

DO - 10.1039/b900934e

M3 - Article

C2 - 19568675

SN - 1473-0197

VL - 9

SP - 2059

EP - 2062

JO - Lab on a Chip

JF - Lab on a Chip

IS - 14

ER -

Multipoint viscosity measurements in microfluidic channels using optical tweezers

Abstract

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