Planar-Integrated Optics and Microfluidics for Lab-on-a-Chip Systems

概要

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A planar integration platform for lab-on-a-chip systems is proposed. It evolves from planar-integrated free-space optics and includes planar microfluidics. Optical systems are folded into transparent wafers and can be fabricated with mask-based techniques. Fluidic actuation is achieved electroacoustically by means of Rayleigh-type surface acoustic waves that are generated with interdigital transducers on a piezoelectric wafer. Simple proof-of-principle demonstrators were constructed and experimentally tested. They contain a ring-shaped flow channel in which an arbitrary fluid can be set into circulation, and integrated free-space optical systems for microscopic brightfield and darkfield illumination, respectively. As piezoelectric material 128° $y$-cut LiNbO3 was used, the flow channel and the optical functions were realized in poly(methyl methacrylate) (PMMA).
Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
2009-09-25