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Disposable flow cytometer with high efficiency in particle counting and sizing using an optofluidic lens

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Disposable flow cytometer with high efficiency in particle counting and sizing using an optofluidic lens

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Title: Disposable flow cytometer with high efficiency in particle counting and sizing using an optofluidic lens
Author: Song, Chaolong; Luong, Trung-Dung; Kong, Tian Fook; Nguyen, Nam-Trung; Asundi, Anand Krishna
Copyright year: 2011
Abstract: Flow cytometers are widely applied to environmental monitoring, industrial testing, and biochemical studies. Integrating a flow cytometer into microfluidic networks helps to miniaturize the system and make it portable for field use. The integration of optical components, such as lenses, further improves the compactness and thus has been intensively studied recently. However, the current designs suffer from severe light scattering due to the roughness of the solid-based lens interface. In this Letter, we propose a flow cytometer using an optofluidic lens to focus the light beam. Benefiting from the smooth liquid–liquid lens interface and the refractive-index matching liquid as cladding streams, a light beam can be well focused without scattering. The variations of the signal peak values are reduced, owing to the small beam width at the beam waist. The device presents an efficient and accurate performance on both the counting and sizing of particles.
Subject: DRNTU::Engineering::Mechanical engineering
Type: Journal Article
Series/ Journal Title: Optics letters
School: School of Mechanical and Aerospace Engineering
Rights: © 2011 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint (preprint) with permission of Optical Society of America. The paper can be found at the following DOI: [http://dx.doi.org.ezlibproxy1.ntu.edu.sg/10.1364/OL.36.000657].  One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Version: Published version

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