Carbon-Quantum-Dots-Loaded Mesoporous Silica Nanocarriers with pH-Switchable Zwitterionic Surface and Enzyme-Responsive Pore-Cap for Targeted Imaging and Drug Delivery to Tumor

Adv Healthc Mater. 2016 Jun;5(12):1401-7. doi: 10.1002/adhm.201600002. Epub 2016 Mar 14.

Abstract

Mesoporous silica nanocarriers with pH-switchable antifouling zwitterionic surface, enzyme responsive drug release properties and blue fluorescence are reported. Prolonged circulation in the blood system with zero premature release as well as efficient cellular uptake and intracellular drug release in tumor tissue are achieved.

Keywords: dual-stimuli responsiveness; mesoporous silica nanocarriers; selective cell imaging; switchable antifouling; tumor targeting drug delivery.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Line, Tumor
  • Drug Carriers* / chemistry
  • Drug Carriers* / pharmacology
  • Humans
  • Hydrogen-Ion Concentration
  • Neoplasms / drug therapy*
  • Neoplasms / metabolism
  • Neoplasms / pathology
  • Porosity
  • Quantum Dots* / chemistry
  • Quantum Dots* / therapeutic use
  • Silicon Dioxide* / chemistry
  • Silicon Dioxide* / pharmacology

Substances

  • Drug Carriers
  • Silicon Dioxide