Light-driven flow control within the microchannel inside a hydrogel by utilizing metal microstructures fabricated by multiphoton photoreduction

Yo Nagano; Hiroaki Onoe; Mitsuhiro Terakawa

doi:10.1117/12.2607549

1 April 2022 Light-driven flow control within the microchannel inside a hydrogel by utilizing metal microstructures fabricated by multiphoton photoreduction

Yo Nagano, Hiroaki Onoe, Mitsuhiro Terakawa

Author Affiliations +

Proceedings Volume PC11988, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVII; PC119880I (2022) https://doi.org/10.1117/12.2607549
Event: SPIE LASE, 2022, San Francisco, California, United States

Conference Poster

Abstract

In this study, we demonstrated the light-driven control of the flow-rate inside a microchannel within a temperature-responsive hydrogel by fabricating metal microstructures by multiphoton photoreduction. When CW light was illuminated onto the microstructures, significant alteration in the flow-rate was confirmed. The change in flow-rate is attributable to the light-stimulated deformation of the microchannel associated with the shrinkage of the PNIPAm hydrogel. This method allows for the spatially-selective control of the flow-rate simply via light illumination since the light absorbers can be fabricated at a targeted position by multiphoton photoreduction.

Conference Presentation

Citation Download Citation

Yo Nagano, Hiroaki Onoe, and Mitsuhiro Terakawa "Light-driven flow control within the microchannel inside a hydrogel by utilizing metal microstructures fabricated by multiphoton photoreduction", Proc. SPIE PC11988, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVII, PC119880I (1 April 2022); https://doi.org/10.1117/12.2607549

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