Nanotechnology, volume 24, issue 5, pages 55706
One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window
Publication type: Journal Article
Publication date: 2013-01-16
General Chemistry
General Materials Science
Electrical and Electronic Engineering
Mechanical Engineering
Bioengineering
Mechanics of Materials
Abstract
The second near-infrared window (NIR-II, wavelength of 1.0-1.4 μm) is optimal for the bioimaging of live animals due to their low albedo and endogenous autofluorescence. Herein, we report a facile and one-pot biomimetic synthesis approach to prepare water-dispersible NIR-II-emitting ultrasmall Ag(2)S quantum dots (QDs). Photoluminescence spectra showed that the emission peaks could be tuned from 1294 to 1050 nm as the size of the Ag(2)S QDs varied from 6.8 to 1.6 nm. The x-ray diffraction patterns and x-ray photoelectron spectra confirmed that the products were monoclinic α-Ag(2)S. Fourier transform infrared spectrograph analysis indicated that the products were protein-conjugated Ag(2)S QDs. Examination of cytotoxicity and the hemolysis test showed that the obtained Ag(2)S QDs had good biocompatibility, indicating that such a nanomaterial could be a new kind of fluorescent label for in vivo imaging.
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Yang H. Y. et al. One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window // Nanotechnology. 2013. Vol. 24. No. 5. p. 55706.
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Yang H. Y., Zhao Y., Zhang Z. Y., Xiong H., Yu S. N. One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window // Nanotechnology. 2013. Vol. 24. No. 5. p. 55706.
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TY - JOUR
DO - 10.1088/0957-4484/24/5/055706
UR - https://doi.org/10.1088/0957-4484/24/5/055706
TI - One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window
T2 - Nanotechnology
AU - Yang, Hua Yan
AU - Zhao, Yu-wei
AU - Zhang, Zheng Yong
AU - Xiong, Huan-Ming
AU - Yu, Shao Ning
PY - 2013
DA - 2013/01/16
PB - IOP Publishing
SP - 55706
IS - 5
VL - 24
SN - 0957-4484
SN - 1361-6528
ER -
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BibTex (up to 50 authors)
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@article{2013_Yang,
author = {Hua Yan Yang and Yu-wei Zhao and Zheng Yong Zhang and Huan-Ming Xiong and Shao Ning Yu},
title = {One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window},
journal = {Nanotechnology},
year = {2013},
volume = {24},
publisher = {IOP Publishing},
month = {jan},
url = {https://doi.org/10.1088/0957-4484/24/5/055706},
number = {5},
pages = {55706},
doi = {10.1088/0957-4484/24/5/055706}
}
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MLA
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Yang, Hua Yan, et al. “One-pot synthesis of water-dispersible Ag2S quantum dots with bright fluorescent emission in the second near-infrared window.” Nanotechnology, vol. 24, no. 5, Jan. 2013, p. 55706. https://doi.org/10.1088/0957-4484/24/5/055706.