Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement

Despite great efforts in the development of diverse nanomaterials, a general route to synthesize metal-free chalcogen quantum dots (QDs) is still lacking. Moreover, the modification of chalcogen QDs is a bottleneck that severely hinders their applications. Herein, we develop a facile method to const...

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Main Authors: Zhang, Xiaodong, Chen, Xiaokai, Guo, Yi, Gu, Long, Wu, Yinglong, Bindra, Anivind Kaur, Teo, Wei Liang, Wu, Fu-Gen, Zhao, Yanli
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/160079
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1600792022-07-12T07:16:19Z Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement Zhang, Xiaodong Chen, Xiaokai Guo, Yi Gu, Long Wu, Yinglong Bindra, Anivind Kaur Teo, Wei Liang Wu, Fu-Gen Zhao, Yanli School of Physical and Mathematical Sciences Science::Chemistry Cell Imaging Chalcogen Quantum Dots Despite great efforts in the development of diverse nanomaterials, a general route to synthesize metal-free chalcogen quantum dots (QDs) is still lacking. Moreover, the modification of chalcogen QDs is a bottleneck that severely hinders their applications. Herein, we develop a facile method to construct different chalcogen QDs (including S QDs, Se QDs, and Te QDs) with the assistance of thiolates. In addition to stabilizing chalcogen QDs, the thiolates also endow the chalcogen QDs with favorable modifiability. Different from most dyes whose fluorescence is quenched after short-term light irradiation, the prepared chalcogen QDs have significantly enhanced fluorescence emission under continuous light irradiation. Taking advantage of the distinctive photoinduced fluorescence enhancement property, long-time cell imaging with superb performance is realized using the chalcogen QDs. It is envisioned that the chalcogen QDs show promising potential as fluorescent materials in different fields beyond bioimaging. Agency for Science, Technology and Research (A*STAR) National Research Foundation (NRF) This research is supported by the Singapore Agency for Science, Technology and Research (A*STAR) AME IRG grant (A20E5c0081) and the Singapore National Research Foundation Investigatorship (NRF-NRFI2018-03). This work was also supported by the National Natural Science Foundation of China (21673037) and the Fundamental Research Funds for the Central Universities. 2022-07-12T07:16:18Z 2022-07-12T07:16:18Z 2021 Journal Article Zhang, X., Chen, X., Guo, Y., Gu, L., Wu, Y., Bindra, A. K., Teo, W. L., Wu, F. & Zhao, Y. (2021). Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement. ACS Applied Materials and Interfaces, 13(41), 48449-48456. https://dx.doi.org/10.1021/acsami.1c15772 1944-8244 https://hdl.handle.net/10356/160079 10.1021/acsami.1c15772 34619967 2-s2.0-85117763751 41 13 48449 48456 en A20E5c0081 NRF-NRFI2018-03 ACS Applied Materials and Interfaces © 2021 American Chemical Society. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Science::Chemistry
Cell Imaging
Chalcogen Quantum Dots
spellingShingle Science::Chemistry
Cell Imaging
Chalcogen Quantum Dots
Zhang, Xiaodong
Chen, Xiaokai
Guo, Yi
Gu, Long
Wu, Yinglong
Bindra, Anivind Kaur
Teo, Wei Liang
Wu, Fu-Gen
Zhao, Yanli
Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
description Despite great efforts in the development of diverse nanomaterials, a general route to synthesize metal-free chalcogen quantum dots (QDs) is still lacking. Moreover, the modification of chalcogen QDs is a bottleneck that severely hinders their applications. Herein, we develop a facile method to construct different chalcogen QDs (including S QDs, Se QDs, and Te QDs) with the assistance of thiolates. In addition to stabilizing chalcogen QDs, the thiolates also endow the chalcogen QDs with favorable modifiability. Different from most dyes whose fluorescence is quenched after short-term light irradiation, the prepared chalcogen QDs have significantly enhanced fluorescence emission under continuous light irradiation. Taking advantage of the distinctive photoinduced fluorescence enhancement property, long-time cell imaging with superb performance is realized using the chalcogen QDs. It is envisioned that the chalcogen QDs show promising potential as fluorescent materials in different fields beyond bioimaging.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Zhang, Xiaodong
Chen, Xiaokai
Guo, Yi
Gu, Long
Wu, Yinglong
Bindra, Anivind Kaur
Teo, Wei Liang
Wu, Fu-Gen
Zhao, Yanli
format Article
author Zhang, Xiaodong
Chen, Xiaokai
Guo, Yi
Gu, Long
Wu, Yinglong
Bindra, Anivind Kaur
Teo, Wei Liang
Wu, Fu-Gen
Zhao, Yanli
author_sort Zhang, Xiaodong
title Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
title_short Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
title_full Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
title_fullStr Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
title_full_unstemmed Thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
title_sort thiolate-assisted route for constructing chalcogen quantum dots with photoinduced fluorescence enhancement
publishDate 2022
url https://hdl.handle.net/10356/160079
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