Carbonic anhydrase adsorption in porous silicon studied with infrared ellipsometry

H. Arwin, L. M. Karlsson, A. Kozarcanin, D. W. Thompson, T. Tiwald, J. A. Woollam

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The refractive index N = n + ik of the protein bovine carbonic anhydrase (BCA) adsorbed in porous silicon layers is determined using infrared spectroscopic ellipsometry. Five absorption bands in the amide region are resolved. The distribution of the protein inside the porous matrix is modelled and it is found that more BCA per internal surface area are adsorbed in the upper part of the porous layer than in the bottom part.

Original languageEnglish (US)
Pages (from-to)1688-1692
Number of pages5
JournalPhysica Status Solidi (A) Applications and Materials Science
Issue number8
StatePublished - Jun 2005
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry


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