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A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots
Carbon nanodots (C-dots) with sp(2)/sp(3) framework and diameter of <10 nm contain abundant functional groups or polymers on their surface. C-dots have attracted immense attention because of their unique optical properties, excellent biocompatibility, facile preparation, and low cost. With these...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Frontiers Media S.A.
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7862559/ https://www.ncbi.nlm.nih.gov/pubmed/33553104 http://dx.doi.org/10.3389/fchem.2020.605028 |
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author | Liu, Cui Zhang, Fang Hu, Jiao Gao, Wenhui Zhang, Mingzhen |
author_facet | Liu, Cui Zhang, Fang Hu, Jiao Gao, Wenhui Zhang, Mingzhen |
author_sort | Liu, Cui |
collection | PubMed |
description | Carbon nanodots (C-dots) with sp(2)/sp(3) framework and diameter of <10 nm contain abundant functional groups or polymers on their surface. C-dots have attracted immense attention because of their unique optical properties, excellent biocompatibility, facile preparation, and low cost. With these merits, C-dots have been used in a wide range of applications including sensing, bioimaging, catalysis, and light-emitting devices. C-dots exhibit good optical properties, such as tunable emission wavelength, good photostability, nonblinking, up-conversion emission, etc. Of note, C-dots show intrinsic pH-sensitive photoluminescence (PL), indicating their great potential for pH sensing, especially in biotic pH sensing. In this review, we systematically summarize the pH-sensitive PL properties and the pH-sensitive PL mechanism, as well as recent research progress of C-dots in pH sensing. The current challenges of pH-sensitive C-dots and their future research focus are also proposed here. We anticipate this review might be of great significance for understanding the characteristics of pH-sensitive C-dots and the development of photoluminescent nanomaterials with pH-sensitive properties. |
format | Online Article Text |
id | pubmed-7862559 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-78625592021-02-06 A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots Liu, Cui Zhang, Fang Hu, Jiao Gao, Wenhui Zhang, Mingzhen Front Chem Chemistry Carbon nanodots (C-dots) with sp(2)/sp(3) framework and diameter of <10 nm contain abundant functional groups or polymers on their surface. C-dots have attracted immense attention because of their unique optical properties, excellent biocompatibility, facile preparation, and low cost. With these merits, C-dots have been used in a wide range of applications including sensing, bioimaging, catalysis, and light-emitting devices. C-dots exhibit good optical properties, such as tunable emission wavelength, good photostability, nonblinking, up-conversion emission, etc. Of note, C-dots show intrinsic pH-sensitive photoluminescence (PL), indicating their great potential for pH sensing, especially in biotic pH sensing. In this review, we systematically summarize the pH-sensitive PL properties and the pH-sensitive PL mechanism, as well as recent research progress of C-dots in pH sensing. The current challenges of pH-sensitive C-dots and their future research focus are also proposed here. We anticipate this review might be of great significance for understanding the characteristics of pH-sensitive C-dots and the development of photoluminescent nanomaterials with pH-sensitive properties. Frontiers Media S.A. 2021-01-22 /pmc/articles/PMC7862559/ /pubmed/33553104 http://dx.doi.org/10.3389/fchem.2020.605028 Text en Copyright © 2021 Liu, Zhang, Hu, Gao and Zhang. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Chemistry Liu, Cui Zhang, Fang Hu, Jiao Gao, Wenhui Zhang, Mingzhen A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title | A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title_full | A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title_fullStr | A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title_full_unstemmed | A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title_short | A Mini Review on pH-Sensitive Photoluminescence in Carbon Nanodots |
title_sort | mini review on ph-sensitive photoluminescence in carbon nanodots |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7862559/ https://www.ncbi.nlm.nih.gov/pubmed/33553104 http://dx.doi.org/10.3389/fchem.2020.605028 |
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