Multiphoton photoreduction for dual-wavelength-light-driven shrinkage and actuation in hydrogel

Kosuke Mizuguchi; Yo Nagano; Hiroaki Nishiyama; Hiroaki Onoe; Mitsuhiro Terakawa

doi:10.1364/OME.399874

Multiphoton photoreduction for dual-wavelength-light-driven shrinkage and actuation in hydrogel

Kosuke Mizuguchi, Yo Nagano, Hiroaki Nishiyama, Hiroaki Onoe, Mitsuhiro Terakawa

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

The dual-wavelength-driven shrinkage of metal microstructures and hydrogel actuation are demonstrated by the fabrication of multi-metal microstructures in hydrogels by multiphoton photoreduction. Silver and gold microstructures were fabricated in a poly-Nisopropylacrylamide (PNIPAm) hydrogel. Because of the different optical resonances of the metals, wavelength-dependent shrinkage of metal microstructures was demonstrated concurrently with the volume change of the supporting hydrogel by light stimulation. Furthermore, the direction of actuation of the hydrogel was controlled by switching the wavelength of light stimulation. The results indicate the potential of multiphoton photoreduction for applications in light-driven optical components and micro-robots fabricated with soft materials.

Original language	English
Pages (from-to)	1931-1940
Number of pages	10
Journal	Optical Materials Express
Volume	10
Issue number	8
DOIs	https://doi.org/10.1364/OME.399874
Publication status	Published - 2020 Aug 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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10.1364/OME.399874

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abstract = "The dual-wavelength-driven shrinkage of metal microstructures and hydrogel actuation are demonstrated by the fabrication of multi-metal microstructures in hydrogels by multiphoton photoreduction. Silver and gold microstructures were fabricated in a poly-Nisopropylacrylamide (PNIPAm) hydrogel. Because of the different optical resonances of the metals, wavelength-dependent shrinkage of metal microstructures was demonstrated concurrently with the volume change of the supporting hydrogel by light stimulation. Furthermore, the direction of actuation of the hydrogel was controlled by switching the wavelength of light stimulation. The results indicate the potential of multiphoton photoreduction for applications in light-driven optical components and micro-robots fabricated with soft materials.",

author = "Kosuke Mizuguchi and Yo Nagano and Hiroaki Nishiyama and Hiroaki Onoe and Mitsuhiro Terakawa",

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AU - Mizuguchi, Kosuke

AU - Nagano, Yo

AU - Nishiyama, Hiroaki

AU - Onoe, Hiroaki

AU - Terakawa, Mitsuhiro

N1 - Funding Information: Ministry of Education, Culture, Sports, Science and Technology (18K18958). Publisher Copyright: © 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The dual-wavelength-driven shrinkage of metal microstructures and hydrogel actuation are demonstrated by the fabrication of multi-metal microstructures in hydrogels by multiphoton photoreduction. Silver and gold microstructures were fabricated in a poly-Nisopropylacrylamide (PNIPAm) hydrogel. Because of the different optical resonances of the metals, wavelength-dependent shrinkage of metal microstructures was demonstrated concurrently with the volume change of the supporting hydrogel by light stimulation. Furthermore, the direction of actuation of the hydrogel was controlled by switching the wavelength of light stimulation. The results indicate the potential of multiphoton photoreduction for applications in light-driven optical components and micro-robots fabricated with soft materials.

AB - The dual-wavelength-driven shrinkage of metal microstructures and hydrogel actuation are demonstrated by the fabrication of multi-metal microstructures in hydrogels by multiphoton photoreduction. Silver and gold microstructures were fabricated in a poly-Nisopropylacrylamide (PNIPAm) hydrogel. Because of the different optical resonances of the metals, wavelength-dependent shrinkage of metal microstructures was demonstrated concurrently with the volume change of the supporting hydrogel by light stimulation. Furthermore, the direction of actuation of the hydrogel was controlled by switching the wavelength of light stimulation. The results indicate the potential of multiphoton photoreduction for applications in light-driven optical components and micro-robots fabricated with soft materials.

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Multiphoton photoreduction for dual-wavelength-light-driven shrinkage and actuation in hydrogel

Abstract

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