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An optical platform for the production, trapping, manipulation and visualization of ultra-low interfacial tension emulsion droplets

Hargreaves, Alexander L. and Kirby, Andrew K. and Bain, Colin D. and Love, Gordon D. and Bolognesi, Guido and Ces, Oscar and Neil, Mark and Ward, Andrew D. (2013) 'An optical platform for the production, trapping, manipulation and visualization of ultra-low interfacial tension emulsion droplets.', Optical Trapping and Optical Micromanipulation X San Diego, CA, 25-29 Aug 2013.

Abstract

We discuss the design, implementation and performance of a novel platform for the production and optical control of ultra-low interfacial tension droplets in the 1-10 micron regime. A custom-designed, integrated microfluidic system allows the production of oil-in-water emulsion droplets of controllable size. This provides an optimised physical platform in which individual droplets are selected, trapped and shaped by holographic optical tweezers (HOTs) via extended optical landscaping. The 3D structure of the shaped droplet is interrogated by a combination of conventional brightfield imaging and fluorescent structured-illumination sectioning. We detail the problems and limitations of closed-loop holographic control of droplet shape.

Item Type:Conference item (Paper)
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1117/12.2027105
Publisher statement:Copyright 2013 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Date accepted:No date available
Date deposited:22 April 2022
Date of first online publication:12 September 2013
Date first made open access:22 April 2022

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