Polydopamine doped reduced graphene oxide/mesoporous silica nanosheets for chemo-photothermal and enhanced photothermal therapy

Mater Sci Eng C Mater Biol Appl. 2019 Mar:96:138-145. doi: 10.1016/j.msec.2018.10.093. Epub 2018 Nov 1.

Abstract

The nanoplatform of synergistic chemo-photothermal therapy has superior advantages on antitumor. It is urgently needed to explore novel nanocarrier for improving photothermal performance in drug delivery process. Herein, we synthesized polydopamine doped mesoporous silica-coated reduced graphene oxide (rGO/MSN/PDA) by simply adding dopamine hydrochloride into the oil-water biphasic reaction system as a multifunctional drug carrier for anticancer treatment, which combines chemotherapy and photothermal therapy. The rGO/MSN/PDA showed nearly twice the photothermal conversion efficiency of mesoporous silica-coated graphene oxide (GO/MSN) due to the reduction of GO and doping with PDA. In addition, the rGO/MSN/PDA showed pH-response DOX release abilities, which means higher release of DOX in tumor cells. The cell experiments in vitro proved that rGO/MSN/PDA with better biocompatibility compare to GO/MSN might offer a promising tool for improving the therapeutic effects of hepatocellular carcinoma cells through synergistic chemo-photothermal therapy.

Keywords: Chemo-photothermal therapy; Mesoporous silica; Polydopamine; Reduced graphene oxide.

MeSH terms

  • Cell Line, Tumor
  • Doxorubicin* / chemistry
  • Doxorubicin* / pharmacokinetics
  • Doxorubicin* / pharmacology
  • Drug Carriers* / chemistry
  • Drug Carriers* / pharmacokinetics
  • Drug Carriers* / pharmacology
  • Graphite* / chemistry
  • Graphite* / pharmacokinetics
  • Graphite* / pharmacology
  • Humans
  • Hyperthermia, Induced*
  • Indoles* / chemistry
  • Indoles* / pharmacokinetics
  • Indoles* / pharmacology
  • Neoplasms / metabolism
  • Neoplasms / pathology
  • Neoplasms / therapy*
  • Phototherapy*
  • Polymers* / chemistry
  • Polymers* / pharmacokinetics
  • Polymers* / pharmacology
  • Silicon Dioxide* / chemistry
  • Silicon Dioxide* / pharmacokinetics
  • Silicon Dioxide* / pharmacology

Substances

  • Drug Carriers
  • Indoles
  • Polymers
  • graphene oxide
  • polydopamine
  • Silicon Dioxide
  • Graphite
  • Doxorubicin