• 文献标题:   Beyond a Carrier: Graphene Quantum Dots as a Probe for Programmatically Monitoring Anti-Cancer Drug Delivery, Release, and Response
  • 文献类型:   Article
  • 作  者:   DING H, ZHANG F, ZHAO CC, LV YL, MA GH, WEI W, TIAN ZY
  • 作者关键词:   graphene quantum dot, cathepsin dresponsive, fluorescence quenching, theranostic
  • 出版物名称:   ACS APPLIED MATERIALS INTERFACES
  • ISSN:   1944-8244
  • 通讯作者地址:   Univ Chinese Acad Sci
  • 被引频次:   24
  • DOI:   10.1021/acsami.7b08824
  • 出版年:   2017

▎ 摘  要

On the basis of the unique physicochemical properties of graphene quantum dots (GQDs), we developed a novel type of theranostic agent by loading anticancer drug doxorubicin (DOX) to GQD's surface and conjugating Cy5.5 (Cy) dye to GQD though a cathepsin D-responsive (P) peptide. Such type of agents demonstrated superior therapeutic performance both in vitro and in vivo because of the improved tissue penetration and cellular uptake. More importantly, they are capable of functioning as probes for programmed tracking the delivery and release of anticancer drug as well as drug induced cancer cell apoptosis through GQD's, DOX's, and Cy's charateristic fluorescence, respectively.