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Issue 12, 2013
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Measuring nanoparticle flow with the image structure function

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Abstract

We present a technique to measure the velocity and flow profiles of a nanofluid in a microfluidic channel. Importantly, we extract the flow velocity from a series of standard brightfield images without employing particle tracking or laser-enhanced methods. Our analysis retrieves the flow information from the image structure function of sub-diffraction limited nanoparticles in suspension. We are able to spatially resolve the flow velocity and map out the parabolic flow profile across the width of a microfluidic channel.

Graphical abstract: Measuring nanoparticle flow with the image structure function

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Article information


Submitted
05 Jan 2013
Accepted
28 Mar 2013
First published
03 May 2013

Lab Chip, 2013,13, 2359-2363
Article type
Paper

Measuring nanoparticle flow with the image structure function

M. Dienerowitz, M. Lee, G. Gibson and M. Padgett, Lab Chip, 2013, 13, 2359
DOI: 10.1039/C3LC00028A

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