Comparative studies on IR, Raman, and surface enhanced Raman scattering spectroscopy of dipeptides containing Ala and Phe

2012
journal article
article
16
dc.abstract.enThree dipeptides containing dehydroresidues ($\Delta$Ala, $\Delta^{Z}$Phe, and $\Delta^{E}$Phe) were examined by IR, Raman, and surface-enhanced Raman techniques for the first time. The effect of the size and isomer type of the $\beta$-substituent in the dehydroresidue on the conformational structure of the peptide was evaluated by using the analysis of IR and Raman bands. Additionally, SERS spectroscopy provided insight into the adsorption mechanism of these species on the metal surface. SERS spectra were recorded at alkaline pH on the silver sol using visible light excitation. The dehydroresidues studied here strongly influenced the SERS profile of the peptides. The most pronounced SERS signal for all dipeptides was assigned to the symmetric stretching vibration of the carboxylate ions. This indicates that the dehydropeptides studied here primarily adsorb via the deprotonated carboxylic group. Additionally, the enhanced SERS bands in the range 1550-1650 cm$^{-1} $ show differences in contribution of the dehydroresidue to the adsorption mechanism of the studied peptides.pl
dc.affiliationWydział Chemii : Zakład Fizyki Chemicznejpl
dc.contributor.authorMałek, Kamilla - 130284 pl
dc.contributor.authorMakowski, Maciejpl
dc.contributor.authorKrólikowska, Agatapl
dc.contributor.authorBukowska, Jolantapl
dc.date.accessioned2015-09-02T12:14:55Z
dc.date.available2015-09-02T12:14:55Z
dc.date.issued2012pl
dc.description.number4pl
dc.description.physical1414-1425pl
dc.description.points35pl
dc.description.volume116pl
dc.identifier.doi10.1021/jp208586jpl
dc.identifier.eissn1520-5207pl
dc.identifier.issn1520-6106pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/15296
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subtypeArticlepl
dc.titleComparative studies on IR, Raman, and surface enhanced Raman scattering spectroscopy of dipeptides containing $\Delta$Ala and $\Delta$Phepl
dc.title.journalThe Journal of Physical Chemistry. Bpl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
Three dipeptides containing dehydroresidues ($\Delta$Ala, $\Delta^{Z}$Phe, and $\Delta^{E}$Phe) were examined by IR, Raman, and surface-enhanced Raman techniques for the first time. The effect of the size and isomer type of the $\beta$-substituent in the dehydroresidue on the conformational structure of the peptide was evaluated by using the analysis of IR and Raman bands. Additionally, SERS spectroscopy provided insight into the adsorption mechanism of these species on the metal surface. SERS spectra were recorded at alkaline pH on the silver sol using visible light excitation. The dehydroresidues studied here strongly influenced the SERS profile of the peptides. The most pronounced SERS signal for all dipeptides was assigned to the symmetric stretching vibration of the carboxylate ions. This indicates that the dehydropeptides studied here primarily adsorb via the deprotonated carboxylic group. Additionally, the enhanced SERS bands in the range 1550-1650 cm$^{-1} $ show differences in contribution of the dehydroresidue to the adsorption mechanism of the studied peptides.
dc.affiliationpl
Wydział Chemii : Zakład Fizyki Chemicznej
dc.contributor.authorpl
Małek, Kamilla - 130284
dc.contributor.authorpl
Makowski, Maciej
dc.contributor.authorpl
Królikowska, Agata
dc.contributor.authorpl
Bukowska, Jolanta
dc.date.accessioned
2015-09-02T12:14:55Z
dc.date.available
2015-09-02T12:14:55Z
dc.date.issuedpl
2012
dc.description.numberpl
4
dc.description.physicalpl
1414-1425
dc.description.pointspl
35
dc.description.volumepl
116
dc.identifier.doipl
10.1021/jp208586j
dc.identifier.eissnpl
1520-5207
dc.identifier.issnpl
1520-6106
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/15296
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subtypepl
Article
dc.titlepl
Comparative studies on IR, Raman, and surface enhanced Raman scattering spectroscopy of dipeptides containing $\Delta$Ala and $\Delta$Phe
dc.title.journalpl
The Journal of Physical Chemistry. B
dc.typepl
JournalArticle
dspace.entity.type
Publication
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