Quantitative characterization of surface amino groups of plasma-polymerized films prepared from nitrogen-containing monomers for bioelectronic applications

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Abstract

The surface amino groups of plasma-polymerized films prepared from various nitrogen-containing monomers were quantitatively characterized for bioelectronic and biomedical applications. X-ray photo-electron spectroscopy (XPS) measurements were conducted on two kinds of surfaces: pristine surfaces of plasma-polymerized film prepared using various nitrogen-containing monomers, and theirs surfaces whose amino groups had been derivatized by a primary-amine-selective reagent carrying an XPS label. The XPS data showed that the maximum surface density of amino groups for this film was 8.4 x 10 13 cm-2. Amino groups constituted 14-64% of all surface nitrogen atoms (NH/N), depending on the monomer used.

Original languageEnglish
Pages (from-to)963-967
Number of pages5
JournalIEICE Transactions on Electronics
VolumeE91-C
Issue number6
DOIs
Publication statusPublished - 2008 Jun

Keywords

  • Acetoni-trile
  • Allylamine
  • Amino group
  • Ethylenediamine
  • Plasma-polymerized film
  • Surface modification
  • X-ray photoelectron spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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