Repozytorium Uniwersytetu Jagiellońskiego

Phe-MetNH_2 terminal bombesin subfamily peptides : potential induced changes in adsorption on Ag, Au, and Cu electrodes monitored by SERS

Phe-MetNH_2 terminal bombesin subfamily peptides : ...

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dc.contributor.author Podstawka-Proniewicz, Edyta pl
dc.contributor.author Ignatjev, Ilja pl
dc.contributor.author Niaura, Gediminas pl
dc.contributor.author Proniewicz, Leonard [SAP11008736] pl
dc.date.accessioned 2015-09-09T08:28:24Z
dc.date.available 2015-09-09T08:28:24Z
dc.date.issued 2012 pl
dc.identifier.issn 1932-7447 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/15444
dc.language eng pl
dc.title Phe-MetNH_2 terminal bombesin subfamily peptides : potential induced changes in adsorption on Ag, Au, and Cu electrodes monitored by SERS pl
dc.type JournalArticle pl
dc.description.physical 4189-4200 pl
dc.abstract.en Surface-enhanced Raman scattering, electro- chemistry, and generalized two-dimensional correlation analysis methods were used to characterize phyllolitorin and a peptide derived from Pseudophryne guntheri (PG-L). Phyllolitorin and PG-L were deposited onto Ag, Au, and Cu electrode surfaces at different applied electrode potentials in an aqueous solution at physiological pH, and the orientations and adsorption mechanisms of peptides were determined based on the enhancement, broadening, and shifts in the wavenumbers of specific bands. On the basis of these analyses, specific conclusions were drawn regarding the peptide geometry and changes in the geometry that occurred when the electrode type and applied electrode potential were varied. The phyllolitorin and PG-L deposited onto the Ag, Au, and Cu electrode surfaces showed bands that were due to the vibrations of moieties in contact with or in close proximity to the electrode surfaces and were thus located on the same side of the polypeptide backbone. These moieties included the Phe and Trp rings, the sulfur atom of Met, and the amide bond. Variations in the arrangement of these fragments were observed with changes in the metal surface and the applied electrode potential. pl
dc.description.volume 116 pl
dc.description.number 6 pl
dc.description.points 35 pl
dc.identifier.doi 10.1021/jp2126027 pl
dc.identifier.eissn 1932-7455 pl
dc.title.journal The Journal of Physical Chemistry. C pl
dc.language.container eng pl
dc.affiliation Wydział Chemii : Zakład Fizyki Chemicznej pl
dc.subtype Article pl
.pointsMNiSW [2012 A]: 35


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