Plasmon-enhanced two-channel in situ Kretschmann ellipsometry of protein adsorption, cellular adhesion, and polyelectrolyte deposition on titania nanostructures

Judit Nador, Benjamin Kalas, Andras Saftics, Emil Agocs, Peter Kozma, Laszlo Korosi, Inna Szekacs, Miklos Fried, Robert Horvath, Peter Petrik

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Plasmon-enhanced in situ spectroscopic ellipsometry was realized using the Kretschmann geometry. A 10-μL flow cell was designed for multi-channel measurements using a semi-cylindrical lens. Dualchannel monitoring of the layer formation of different organic structures has been demonstrated on titania nanoparticle thin films supported by gold. Complex modeling capabilities as well as a sensitivity of ∼40 pg/mm2 with a time resolution of 1 s was achieved. The surface adsorption was enhanced by the titania nanoparticles due to the larger specific surface and nanoroughness, which is consistent with our previous results on titanate nanotubes.

Original languageEnglish
Pages (from-to)4812-4823
Number of pages12
JournalOptics Express
Volume24
Issue number5
DOIs
Publication statusPublished - Mar 7 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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