Plasma amino acid coatings for a conformal growth of titania nanoparticles

Kyle D. Anderson, Kamil Marczewski, Srikanth Singamaneni, Joseph M. Slocik, Rachel Jakubiak, Rajesh R. Naik, Timothy J. Bunning, Vladimir V. Tsukruk

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

We report on the conformal synthesis of ultrathin films from the aminoacid histidine on flat silicon substrates and 3D periodic polymer structures via plasma enhanced chemical vapor deposition. We demonstrate the efficient utilization of this functional amino acid nanocoating for the formation of individual titania nanoparticles with dimensions from 2 to 15 nm depending upon reduction conditions. The titania nanoparticles were grown directly on histidine-functionalized planar and 3D polymer substrates by a wet-chemistry method that showed uniform surface coverage that reached approximately 75%. This approach demonstrates the potential for modifying the optical properties of periodic porous polymeric structures via direct conformal growth of titania nanoparticles.

Original languageEnglish
Pages (from-to)2269-2281
Number of pages13
JournalACS Applied Materials and Interfaces
Volume2
Issue number8
DOIs
StatePublished - Aug 25 2010

Keywords

  • conformal modification
  • histidine coatings
  • plasma-enhanced chemical vapor deposition
  • titania nanoparticles

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