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Organic J-Aggregate Nanodots with Enhanced Light Absorption and Near-Unity Fluorescence Quantum Yield
[Image: see text] Development of biocompatible fluorophores with small size, bright fluorescence, and narrow spectrum translate directly into major advances in fluorescence imaging and related techniques. Here, we discover that a small donor–acceptor–donor-type organic molecule consisting of a carba...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8155199/ https://www.ncbi.nlm.nih.gov/pubmed/33784810 http://dx.doi.org/10.1021/acs.nanolett.0c04928 |
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author | Piwoński, Hubert Nozue, Shuho Fujita, Hiroyuki Michinobu, Tsuyoshi Habuchi, Satoshi |
author_facet | Piwoński, Hubert Nozue, Shuho Fujita, Hiroyuki Michinobu, Tsuyoshi Habuchi, Satoshi |
author_sort | Piwoński, Hubert |
collection | PubMed |
description | [Image: see text] Development of biocompatible fluorophores with small size, bright fluorescence, and narrow spectrum translate directly into major advances in fluorescence imaging and related techniques. Here, we discover that a small donor–acceptor–donor-type organic molecule consisting of a carbazole (Cz) donor and benzothiazole (BT) acceptor (CzBTCz) assembles into quasi-crystalline J-aggregates upon a formation of ultrasmall nanoparticles. The 3.5 nm CzBTCz Jdots show a narrow absorption spectrum (fwhm = 27 nm), near-unity fluorescence quantum yield (ϕ(fl) = 0.95), and enhanced peak molar extinction coefficient. The superior spectroscopic characteristics of the CzBTCz Jdots result in two orders of magnitude brighter photoluminescence of the Jdots compared with semiconductor quantum dots, which enables continuous single-Jdots imaging over a 1 h period. Comparison with structurally similar CzBT nanoparticles demonstrates a critical role played by the shape of CzBTCz on the formation of the Jdots. Our findings open an avenue for the development of a new class of fluorescent nanoparticles based on J-aggregates. |
format | Online Article Text |
id | pubmed-8155199 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-81551992021-05-28 Organic J-Aggregate Nanodots with Enhanced Light Absorption and Near-Unity Fluorescence Quantum Yield Piwoński, Hubert Nozue, Shuho Fujita, Hiroyuki Michinobu, Tsuyoshi Habuchi, Satoshi Nano Lett [Image: see text] Development of biocompatible fluorophores with small size, bright fluorescence, and narrow spectrum translate directly into major advances in fluorescence imaging and related techniques. Here, we discover that a small donor–acceptor–donor-type organic molecule consisting of a carbazole (Cz) donor and benzothiazole (BT) acceptor (CzBTCz) assembles into quasi-crystalline J-aggregates upon a formation of ultrasmall nanoparticles. The 3.5 nm CzBTCz Jdots show a narrow absorption spectrum (fwhm = 27 nm), near-unity fluorescence quantum yield (ϕ(fl) = 0.95), and enhanced peak molar extinction coefficient. The superior spectroscopic characteristics of the CzBTCz Jdots result in two orders of magnitude brighter photoluminescence of the Jdots compared with semiconductor quantum dots, which enables continuous single-Jdots imaging over a 1 h period. Comparison with structurally similar CzBT nanoparticles demonstrates a critical role played by the shape of CzBTCz on the formation of the Jdots. Our findings open an avenue for the development of a new class of fluorescent nanoparticles based on J-aggregates. American Chemical Society 2021-03-31 2021-04-14 /pmc/articles/PMC8155199/ /pubmed/33784810 http://dx.doi.org/10.1021/acs.nanolett.0c04928 Text en © 2021 The Authors. Published by American Chemical Society Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Piwoński, Hubert Nozue, Shuho Fujita, Hiroyuki Michinobu, Tsuyoshi Habuchi, Satoshi Organic J-Aggregate Nanodots with Enhanced Light Absorption and Near-Unity Fluorescence Quantum Yield |
title | Organic J-Aggregate Nanodots with Enhanced
Light Absorption and Near-Unity Fluorescence Quantum Yield |
title_full | Organic J-Aggregate Nanodots with Enhanced
Light Absorption and Near-Unity Fluorescence Quantum Yield |
title_fullStr | Organic J-Aggregate Nanodots with Enhanced
Light Absorption and Near-Unity Fluorescence Quantum Yield |
title_full_unstemmed | Organic J-Aggregate Nanodots with Enhanced
Light Absorption and Near-Unity Fluorescence Quantum Yield |
title_short | Organic J-Aggregate Nanodots with Enhanced
Light Absorption and Near-Unity Fluorescence Quantum Yield |
title_sort | organic j-aggregate nanodots with enhanced
light absorption and near-unity fluorescence quantum yield |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8155199/ https://www.ncbi.nlm.nih.gov/pubmed/33784810 http://dx.doi.org/10.1021/acs.nanolett.0c04928 |
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