Issue 19, 2022

Highly-fluorescent carbon dots grown onto dendritic silica nanospheres for anthrax protective antigen detection

Abstract

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-β-(aminoethyl)-γ-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.

Graphical abstract: Highly-fluorescent carbon dots grown onto dendritic silica nanospheres for anthrax protective antigen detection

Supplementary files

Article information

Article type
Communication
Submitted
14 Eph 2022
Accepted
23 Eph 2022
First published
25 Eph 2022

Anal. Methods, 2022,14, 1836-1840

Highly-fluorescent carbon dots grown onto dendritic silica nanospheres for anthrax protective antigen detection

L. Xu, J. Zhu and S. Ding, Anal. Methods, 2022, 14, 1836 DOI: 10.1039/D2AY00623E

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