Patents by Inventor Yejun Zhang

Yejun Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preparation method of near-infrared silver sulfide quantum dots
    Patent number: 10421901
    Abstract: 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.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: September 24, 2019
    Assignee: Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
    Inventors: Qiangbin Wang, Yejun Zhang
  • Preparation Method of Near-Infrared Silver Sulfide Quantum Dots
    Publication number: 20160083647
    Abstract: 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.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Applicant: SUZHOU INSTITUTE OF NANO-TECH AND NANO-BIONICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Qiangbin Wang, Yejun Zhang
  • NEAR-INFRARED SILVER SULFIDE QUANTUM DOT, PREPARATION METHOD THEREFOR AND BIOLOGICAL APPLICATION THEREOF
    Publication number: 20140087409
    Abstract: Provided are near-infrared silver sulfide quantum dots, a preparation method thereof and a biological application thereof. 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.
    Type: Application
    Filed: February 10, 2012
    Publication date: March 27, 2014
    Applicant: Suzhou Institute of Nano-Bionics, Shinese Academy of Sciences
    Inventors: Qiangbin Wang, Yejun Zhang