Journal
ANALYTICAL METHODS
Volume 14, Issue 19, Pages 1836-1840Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ay00623e
Keywords
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Funding
- National Key Research and Development Program of China [2017YFA0700404]
- National Natural Science Foundation of China [22174015]
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Direct synthesis of carbon dots on uniform mesoporous nanospheres is an ideal way to incorporate fluorescence properties while maintaining uniformity. Carbon dot-based nanospheres with high quantum yield have excellent chemical properties, enabling sensitive, specific, rapid, and cost-effective detection of anthrax protective antigen.
Direct synthesis of carbon dots on uniform mesoporous nanospheres is an ideal way to impart fluorescence properties to the nanomaterials and retain its original uniformity. Carbon dot-based nanospheres with high quantum yield (aqueous solution, 89.3%) were synthesized by the one-step hydrothermal treatment of sodium citrate and dendritic silica spheres grafted with N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane. Its excellent chemical properties such as fluorescence, stability, homogeneity and dispersion enable it to achieve a sensitive, specific, rapid and low-cost detection of anthrax protective antigen when used as a signal for immunochromatography.
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