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Protein attachment on aluminosilicates surface studied by XPS and FTIR spectroscopy

E. VANEA1, K. MAGYARI1, V. SIMON1,*

Affiliation

  1. Babes-Bolyai University, Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Cluj-Napoca, Romania

Abstract

Bovine serum albumin and fibrinogen attachment on aluminosilicate samples with biomedical potential was tested as major plasma proteins which are adsorbed on the surface of blood contact biomaterials. The samples were incubated for 2 hours in simulated body fluid with bovine serum albumin and buffered fibrinogen solution. Proteins attachment on the surface of the investigated samples is reflected by the presence of the N 1s photoelectron peak and by the modification in the C 1s core-level signal in the XPS spectra of the samples treated with protein solution. The results obtained from FTIR analysis of amide I vibrations were correlated with the secondary structure of the proteins attached on investigated sample surface..

Keywords

Protein, Aluminosilicate, XPS, FTIR.

Submitted at: April 1, 2010
Accepted at: May 26, 2010

Citation

E. VANEA, K. MAGYARI, V. SIMON, Protein attachment on aluminosilicates surface studied by XPS and FTIR spectroscopy, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 5, pp. 1206-1212 (2010)