SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS; CHINESE ACADEMY OF SCIENCES
发明人:
Qiangbin Wang,Yejun Zhang
申请号：
US14955736
公开号：
US10421901B2
申请日:
2015.12.01
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Provided is a preparation method of near-infrared silver sulfide quantum dots. The silver sulfide quantum dots have hydrophilic groups derived from a mercapto-containing hydrophilic reagent attached on the surface thereof, and the hydrophilic reagent is any one of mercaptoacetic acid, mercaptopropionic acid, cysteine, cysteamine, thioctic acid and ammonium mercaptoacetate or any combination thereof. The silver sulfide quantum dots have high fluorescence yield, good fluorescence stability, good biocompatibility and uniform sizes. The preparation method has moderate reaction conditions, simple operation, short production cycle, good reproducibility and is easy to control. The silver sulfide quantum dots can be used in the application of cellular imaging and biological tissue imaging.
