Biomimetic dopamine derivative for selective polymer modification of halloysite nanotube lumen

Weng On Yah, Hang Xu, Hiroe Soejima, Wei Ma, Yuri Lvov, Atsushi Takahara

Research output: Contribution to journalArticlepeer-review

203 Citations (Scopus)

Abstract

We demonstrate the use of a catecholic anchor (Dopa) for selective modification of the inner surface of an halloysite clay nanotube. Aqueous Dopa binds to alumina at the tube lumen and does not bind the silica surface under the same conditions. Selectivity of surface modification was evidenced using X-ray photoelectron spectroscopy (XPS) and 13C solid state NMR spectroscopy. Surface-initiated atom transfer radical polymerization (SI-ATRP) was performed through selectively adsorbed Dopa to graft a layer of polymer brush into the nanotube lumen.

Original languageEnglish
Pages (from-to)12134-12137
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number29
DOIs
Publication statusPublished - Jul 25 2012

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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