Magnetically guided titania nanotubes for site-selective photocatalysis and drug release

Nabeen K. Shrestha, Jan M. Macak, Felix Schmidt-Stein, Robert Hahn, Claudia T. Mierke, Ben Fabry, Patrik Schmuki

Research output: Contribution to journalArticlepeer-review

220 Scopus citations

Abstract

The spatial and temporal delivery of active molecules (dyes or drugs) can be precisely controlled by the photocatalytic activity of TiO2 nanotubes (see picture). The cleavage of the link between the active molecule and the nanotubes, which are filled with magnetic Fe3O4 nanoparticles, occurs by photoinduced chain scission under UV light; the load can be released before photodegradation by action of photogenerated radicals can occur. (Figure Presented)

Original languageEnglish
Pages (from-to)969-972
Number of pages4
JournalAngewandte Chemie - International Edition
Volume48
Issue number5
DOIs
StatePublished - 19 Jan 2009

Keywords

  • Drug delivery
  • Magnetic properties
  • Nanostructures
  • Photocatalysis
  • Photooxidation

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