Microwave-assisted Hydrothermal Synthesis of Carbon Dots Based on Tyrosine and Their Application in Ion Detection and Bioimaging

doi:10.7503/cjcu20190076

Abstract

Abstract: Cabon dots(CDs) were synthesized utilizing tyrosine as carbon source, ethanediamine as passivant through a green microwave-assisted hydrothermal way. The size of CDs can be adjusted by the dose of ethanediamine. The as-prepared CDs have uniform size and good dispersibility, showing blue or green fluorescence. The as-prepared CDs can change their fluorescence(from blue to yellow) by changing the excitation light and the emission light can be kept without large decay. The as-synthesized CDs have good selectivity on the detection of Fe³⁺ with a limit of detection(LOD) of 0.82 nmol/L, and a detection limit of 2.98 nmol/L. The as-synthesized CDs also have great biocompatibility and low biotoxicity, and can be utilized as a probe to label AD293 cells, marking the cytoplasm of the cells.

Key words: Carbon dot, Microwave-assisted hydrothermal method, Fe³⁺ detection, Biomarking

CLC Number:

TrendMD:

HUANG He, LI Chunguang, SHI Zhan, FENG Shouhua. Microwave-assisted Hydrothermal Synthesis of Carbon Dots Based on Tyrosine and Their Application in Ion Detection and Bioimaging[J]. Chem. J. Chinese Universities, 2019, 40(8): 1579.

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