A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging

Abstract A photochemical avenue to synthesize nitrogen-rich quantum dots (N-dots) using 2-azido imidazole as the starting material was established for the first time. A production yield of up to 92.7% was obtained. The N-dots were then fully characterized by elemental analysis, IR, XPS, XRD, AFM and...

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Main Authors: Qingqing Jin, Amu Gubu, Xiuxian Chen, Xinjing Tang
Format: Article
Language:English
Published: Nature Portfolio 2017-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-01663-x
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author Qingqing Jin
Amu Gubu
Xiuxian Chen
Xinjing Tang
author_facet Qingqing Jin
Amu Gubu
Xiuxian Chen
Xinjing Tang
author_sort Qingqing Jin
collection DOAJ
description Abstract A photochemical avenue to synthesize nitrogen-rich quantum dots (N-dots) using 2-azido imidazole as the starting material was established for the first time. A production yield of up to 92.7% was obtained. The N-dots were then fully characterized by elemental analysis, IR, XPS, XRD, AFM and TEM. On the basis of the N2 production and in situ IR results, the underlying mechanism for the photochemical formation of N-dots was proposed. These N-dots showed promising optical properties including wavelength-dependent upconversion photoluminescence, and were successfully used in upconversion cell imaging.
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spelling doaj.art-93978303b3fd470db43fd6f615eba0982022-12-21T21:52:23ZengNature PortfolioScientific Reports2045-23222017-05-01711710.1038/s41598-017-01663-xA Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell ImagingQingqing Jin0Amu Gubu1Xiuxian Chen2Xinjing Tang3State Key Laboratory of Natural and Biomimetic Drugs, Peking UniversityState Key Laboratory of Natural and Biomimetic Drugs, Peking UniversityState Key Laboratory of Natural and Biomimetic Drugs, Peking UniversityState Key Laboratory of Natural and Biomimetic Drugs, Peking UniversityAbstract A photochemical avenue to synthesize nitrogen-rich quantum dots (N-dots) using 2-azido imidazole as the starting material was established for the first time. A production yield of up to 92.7% was obtained. The N-dots were then fully characterized by elemental analysis, IR, XPS, XRD, AFM and TEM. On the basis of the N2 production and in situ IR results, the underlying mechanism for the photochemical formation of N-dots was proposed. These N-dots showed promising optical properties including wavelength-dependent upconversion photoluminescence, and were successfully used in upconversion cell imaging.https://doi.org/10.1038/s41598-017-01663-x
spellingShingle Qingqing Jin
Amu Gubu
Xiuxian Chen
Xinjing Tang
A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
Scientific Reports
title A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
title_full A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
title_fullStr A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
title_full_unstemmed A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
title_short A Photochemical Avenue to Photoluminescent N-Dots and their Upconversion Cell Imaging
title_sort photochemical avenue to photoluminescent n dots and their upconversion cell imaging
url https://doi.org/10.1038/s41598-017-01663-x
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