• 专利标题:   Preparation of graphene quantum dot imaging agent for imaging, involves heating solution containing graphene oxide, deionized water and sodium hydroxide, subjecting obtained mixture to centrifugal separation and drying separated product.
  • 专利号:   CN102633257-A
  • 发明人:   SUN Y, LONG H, DAI Y, ZHANG L, HE Y, JING Y
  • 专利权人:   UNIV SOUTHEAST
  • 国际专利分类:   B82Y040/00, C01B031/04
  • 专利详细信息:   CN102633257-A 15 Aug 2012 C01B-031/04 201318 Pages: 8 Chinese
  • 申请详细信息:   CN102633257-A CN10135927 04 May 2012
  • 优先权号:   CN10135927

▎ 摘  要

NOVELTY - Graphene oxide is ultrasonically dispersed with ultrasonic power of 100-500 W for 1-4 hours to form graphene oxide solution with graphene oxide concentration of 5.10-49.75 mg/mL. The graphene oxide solution is dispersed in deionized water and sodium hydroxide solution is added to adjust the pH of solution to 8-14. Then the solution is transferred to polytetrafluoroethylene autoclave and heated at 180-250 degrees C for 10-40 hours. The heated mixture is centrifuged and the separated product is dried to obtain graphene quantum dot imaging agent with particle size of less than 10 nm. USE - Preparation of quantum dot imaging agent used for imaging. ADVANTAGE - The method economically and efficiently provides graphene quantum dot imaging agent having excellent fluorescent property and purity, and uniform particle size, by a simple process in short period of time and without polluting the environment.