文章基本信息

标题：Dynamic manipulation of particles via transformative optofluidic waveguides
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作者：Kang Soo Lee ; Kyung Heon Lee ; Sang Bok Kim 等
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2015
卷号：5
期号：1
DOI：10.1038/srep15170
语种：English
出版社：Springer Nature
摘要：Optofluidics is one of the most remarkable areas in the field of microfluidic research. Particle manipulation with optofluidic platforms has become central to optical chromatography, biotechnology, and μ-total analysis systems. Optical manipulation of particles depends on their sizes and refractive indices ( n ), which occasionally leads to undesirable separation consequences when their optical mobilities are identical. Here, we demonstrate rapid and dynamic particle manipulation according to n , regardless of size. Integrated liquid-core/solid-cladding (LS) and liquid-core/liquid-cladding (L²) waveguides were fabricated and their characteristics were experimentally and theoretically determined. The high and low n particles showed the opposite behaviors by controlling the contrast of their n values to those of the working fluids. The LS waveguide was found to successfully manipulate particles according to n , and the L² waveguide was found to provide additional system stability and flexibility, compared to the LS system.