Efficient NIR-I fluorescence photoswitching based on giant fluorescence quenching in photochromic nanoparticles

Shinya Yamasaki; Sanae Ishida; Sunnam Kim; Mihoko Yamada; Takuya Nakashima; Tsuyoshi Kawai; Seiji Kurihara; Tuyoshi Fukaminato

doi:10.1039/D1CC01389K

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Efficient NIR-I fluorescence photoswitching based on giant fluorescence quenching in photochromic nanoparticles†

Shinya Yamasaki,^a Sanae Ishida,^a Sunnam Kim,^a Mihoko Yamada,^b Takuya Nakashima,

^b Tsuyoshi Kawai,

^b Seiji Kurihara^a and Tuyoshi Fukaminato

*^a

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* Corresponding authors

^a Department of Applied Chemistry & Biochemistry, Graduate School of Science & Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
E-mail: tuyoshi@kumamoto-u.ac.jp
Fax: +81-96-342-3679
Tel: +81-96-342-3676

^b Division of Materials Science, Nara Institute of Science and Technology (NAIST), Ikoma, Nara 630-0192, Japan

Abstract

A photoswitchable near-infrared (NIR) fluorescent nanoparticle (NP) was designed and prepared. The NP showed a characteristic AIE property and high-contrast NIR fluorescence photoswitching with full reversibility. Such efficient NIR fluorescence photoswitching originated from the amplified fluorescence quenching mechanism based on intermolecular energy transfer in a densely packed NP state.

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Article information

DOI: https://doi.org/10.1039/D1CC01389K
Article type: Communication
Submitted: 15 Mar 2021
Accepted: 27 Apr 2021
First published: 27 Apr 2021

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Chem. Commun., 2021,57, 5422-5425

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Efficient NIR-I fluorescence photoswitching based on giant fluorescence quenching in photochromic nanoparticles

S. Yamasaki, S. Ishida, S. Kim, M. Yamada, T. Nakashima, T. Kawai, S. Kurihara and T. Fukaminato, Chem. Commun., 2021, 57, 5422 DOI: 10.1039/D1CC01389K

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Chemical Communications

Efficient NIR-I fluorescence photoswitching based on giant fluorescence quenching in photochromic nanoparticles†

Abstract

Supplementary files

Article information

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Efficient NIR-I fluorescence photoswitching based on giant fluorescence quenching in photochromic nanoparticles

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