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Raman and surface enhanced Raman spectroscopy of tempyo spin labelled ovalbumin

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: S. Cinta Pinzaru, S. Cavalu, N. Leopold, R. Petry, W. Kiefer

Editorial: Elsevier, J. Mol. Struct., 565-566, p.225-229, 2001.

Rezumat:

Tempyo labelled ovalbumin at different pH values was prepared and investigated using Raman and SERS spectroscopy. Raman spectra of tempyo labelled ovalbumin in the pH range from 6.7 to 11 were compared to those of the corresponding free ovalbumin. In the basic pH range from 6.7 to 11 the molecular conformation was found to be unaffected by the tempyo presence. Adsorption versatility to the colloidal Ag particles of pure- and tempyo labelled ovalbumin was also found to be unchanged in this basic pH range. As the SERS binding site of protein the a-helix conformation is favorable.

Cuvinte cheie: ovalbumin, Raman, surface enhanced Raman scattering (SERS)