Janus nanocarrier powered by bi-enzymatic cascade system for smart delivery

J Mater Chem B. 2019 Jul 31;7(30):4669-4676. doi: 10.1039/c9tb00938h.

Abstract

We report herein the assembly of an integrated nanodevice with bi-enzymatic cascade control for on-command cargo release. This nanocarrier is based on Au-mesoporous silica Janus nanoparticles capped at the mesoporous face with benzimidazole/β-cyclodextrin-glucose oxidase pH-sensitive gate-like ensembles and functionalized with invertase on the gold face. The rationale for this delivery mechanism is based on the invertase-mediated hydrolysis of sucrose yielding glucose, which is further transformed into gluconic acid by glucose oxidase causing the disruption of the pH-sensitive supramolecular gates at the Janus nanoparticles. This enzyme-powered device was successfully employed in the autonomous and on-demand delivery of doxorubicin in HeLa cancer cells.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Doxorubicin / administration & dosage
  • Drug Carriers / therapeutic use*
  • Drug Delivery Systems / methods
  • Gluconates / metabolism
  • Glucose Oxidase / metabolism
  • HeLa Cells
  • Humans
  • Hydrogen-Ion Concentration
  • Multifunctional Nanoparticles / therapeutic use*
  • beta-Fructofuranosidase / metabolism

Substances

  • Drug Carriers
  • Gluconates
  • Doxorubicin
  • Glucose Oxidase
  • beta-Fructofuranosidase
  • gluconic acid