Document Detail


Spectroscopic studies into the influence of UV radiation on elastin hydrolysates in water solution.
MedLine Citation:
PMID:  16829118     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
An investigation into the influence of UV irradiation on elastin hydrolysates dissolved in water was carried out using UV-Vis spectroscopy and spectrofluorometry. It was found that the absorption of elastin hydrolysates in solution increased during irradiation of the sample. For fluorescence of elastin hydrolysates we observed both, a decrease and increase of this value during irradiation of the sample. After UV irradiation of the elastin solution we observed a minor increase of overall absorption, most notably between 250 nm and 280 nm. Moreover, after UV irradiation a wide peak emerged between 290 nm and 310 nm with maximum at about 305 nm. The new peak suggests that new photoproducts are formed during UV irradiation of elastin hydrolysates. The fluorescence of elastin hydrolysates was observed at 305 nm and at 380 nm after excitation at 270 nm. UV irradiation caused fluorescence fading at 305 nm and 380 nm. After 30 min of irradiation a new broad weak band of fluorescence, attributable to new photoproducts, emerged in the UV wavelength region with emission maximum between 400 nm and 500 nm.
Authors:
Alina Sionkowska; Joanna Skopinska; Marcin Wisniewski; Antoni Leznicki; Jacek Fisz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-07-10
Journal Detail:
Title:  Journal of photochemistry and photobiology. B, Biology     Volume:  85     ISSN:  1011-1344     ISO Abbreviation:  J. Photochem. Photobiol. B, Biol.     Publication Date:  2006 Oct 
Date Detail:
Created Date:  2006-09-18     Completed Date:  2006-12-04     Revised Date:  2007-07-23    
Medline Journal Info:
Nlm Unique ID:  8804966     Medline TA:  J Photochem Photobiol B     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  79-84     Citation Subset:  IM    
Affiliation:
Faculty of Chemistry, N. Copernicus University, Gagarin 7, 87-100 Torun, Poland. as@chem.uni.torun.pl
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MeSH Terms
Descriptor/Qualifier:
Animals
Elastin / chemistry*
Hydrolysis
Solubility
Spectrometry, Fluorescence / methods
Spectrophotometry, Ultraviolet / methods
Swine
Ultraviolet Rays*
Water / chemistry*
Chemical
Reg. No./Substance:
7732-18-5/Water; 9007-58-3/Elastin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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