Self-propelled polymer multilayer Janus capsules for effective drug delivery and light-triggered release

ACS Appl Mater Interfaces. 2014 Jul 9;6(13):10476-81. doi: 10.1021/am502458h. Epub 2014 Jun 16.

Abstract

We present herein a novel hybrid, polymer-based motor that was fabricated by the template-assisted polyelectrolyte layer-by-layer (LbL) deposition of a thin gold layer on one side, followed by chemical immobilization of a catalytic enzyme. Such Janus capsule motors can self-propel at 0.1% peroxide fuel concentration at physiological temperature and have a higher speed as compared to Pt-based synthetic motors. They were exploited for encapsulation of the chemotherapeutic anticancer drug, doxorubicin, for navigation to target a cell layer by an external magnetic field, and for triggered drug release activated by NIR light. This work provides high potential in the development of multifunctional polymer-based engines for biomedical applications such as targeted drug delivery.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Capsules*
  • Drug Delivery Systems*
  • Light*
  • Microscopy, Electron, Scanning
  • Polymers / chemistry*

Substances

  • Capsules
  • Polymers