Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction

MANAN MACHIDA; WEILU SHEN; HIROAKI ONOE; Y. U.K.I. HIRUTA; ALEXANDER HEISTERKAMP; E. R.I.C. MAZUR; MITSUHIRO TERAKAWA

doi:10.1364/OME.412066

Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction

MANAN MACHIDA, WEILU SHEN, HIROAKI ONOE, Y. U.K.I. HIRUTA, ALEXANDER HEISTERKAMP, E. R.I.C. MAZUR, MITSUHIRO TERAKAWA

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

2 Citations (Scopus)

Abstract

The fabrication of accentuated gold microstructures is demonstrated by multi-photon photoreduction inside an anionic fluorophore-containing hydrogel. We attempted to facilitate gold-ion photoreduction near the focal point of laser pulses, expecting the donation of electrons by the oxidation of fluorophores in the vicinity of gold ions. The presence of anionic FITCdextran also inhibited the spontaneous reduction in untargeted zones, which is attributed to the coordination of gold ions and the anionic FITC-dextran. Simultaneous facilitation and inhibition are promising for the fabrication of dense metal microstructures in the targeted zone while maintaining the hydrogel's light permeability.

Original language	English
Pages (from-to)	48-58
Number of pages	11
Journal	Optical Materials Express
Volume	11
Issue number	1
DOIs	https://doi.org/10.1364/OME.412066
Publication status	Published - 2021 Jan 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials

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10.1364/OME.412066

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title = "Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction",

abstract = "The fabrication of accentuated gold microstructures is demonstrated by multi-photon photoreduction inside an anionic fluorophore-containing hydrogel. We attempted to facilitate gold-ion photoreduction near the focal point of laser pulses, expecting the donation of electrons by the oxidation of fluorophores in the vicinity of gold ions. The presence of anionic FITCdextran also inhibited the spontaneous reduction in untargeted zones, which is attributed to the coordination of gold ions and the anionic FITC-dextran. Simultaneous facilitation and inhibition are promising for the fabrication of dense metal microstructures in the targeted zone while maintaining the hydrogel's light permeability.",

author = "MANAN MACHIDA and WEILU SHEN and HIROAKI ONOE and HIRUTA, {Y. U.K.I.} and ALEXANDER HEISTERKAMP and MAZUR, {E. R.I.C.} and MITSUHIRO TERAKAWA",

note = "Funding Information: Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI (JP18H03551); Japan Society for the Promotion of Science Grant-in-Aid for JSPS Fellows (JP20J13150). Publisher Copyright: {\textcopyright} 2020 Optical Society of America. All Rights Reserved.",

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T1 - Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction

AU - MACHIDA, MANAN

AU - SHEN, WEILU

AU - ONOE, HIROAKI

AU - HIRUTA, Y. U.K.I.

AU - HEISTERKAMP, ALEXANDER

AU - MAZUR, E. R.I.C.

AU - TERAKAWA, MITSUHIRO

N1 - Funding Information: Ministry of Education, Culture, Sports, Science and Technology (MEXT) KAKENHI (JP18H03551); Japan Society for the Promotion of Science Grant-in-Aid for JSPS Fellows (JP20J13150). Publisher Copyright: © 2020 Optical Society of America. All Rights Reserved.

PY - 2021/1/1

Y1 - 2021/1/1

N2 - The fabrication of accentuated gold microstructures is demonstrated by multi-photon photoreduction inside an anionic fluorophore-containing hydrogel. We attempted to facilitate gold-ion photoreduction near the focal point of laser pulses, expecting the donation of electrons by the oxidation of fluorophores in the vicinity of gold ions. The presence of anionic FITCdextran also inhibited the spontaneous reduction in untargeted zones, which is attributed to the coordination of gold ions and the anionic FITC-dextran. Simultaneous facilitation and inhibition are promising for the fabrication of dense metal microstructures in the targeted zone while maintaining the hydrogel's light permeability.

AB - The fabrication of accentuated gold microstructures is demonstrated by multi-photon photoreduction inside an anionic fluorophore-containing hydrogel. We attempted to facilitate gold-ion photoreduction near the focal point of laser pulses, expecting the donation of electrons by the oxidation of fluorophores in the vicinity of gold ions. The presence of anionic FITCdextran also inhibited the spontaneous reduction in untargeted zones, which is attributed to the coordination of gold ions and the anionic FITC-dextran. Simultaneous facilitation and inhibition are promising for the fabrication of dense metal microstructures in the targeted zone while maintaining the hydrogel's light permeability.

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JF - Optical Materials Express

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ER -

Anionic fluorophore-assisted fabrication of gold microstructures inside a hydrogel by multi-photon photoreduction

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