| Titre : |
Consequence of UV irradiation on the zirconium tanned collagen : a molecular level study |
| Type de document : |
texte imprimé |
| Auteurs : |
N. N. Fathima, Auteur ; C. Pragadhish, Auteur ; B. Purushothaman, Auteur ; Jonnalagadda Raghava Rao, Auteur ; Balachandran Unni Nair, Auteur |
| Année de publication : |
2008 |
| Article en page(s) : |
p. 422-428 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
675.2 Préparation du cuir naturel. Tannage |
| Résumé : |
UV and heat resistance are very important qualities for many leather applications especially, automobile upholstery. This study explores the effect of UV irradiation on zirconium tanned collagen. The changes in the physio-chemical characteristics of native collagen upon UV irradiation differ from that of the zirconium tanned collagen. The UV absorption characteristics of crosslinked collagen increases, which is attributed to the formation of photoproducts on UV radiation. Zirconium crosslinking has been found to reduce this formation when the duration of irradiation is less. There is a gradual decrease in the emission maxima of crosslinked collagen on increasing the time of irradiation, which is ascribed to conformational changes of the aromatic amino acids residue (tyrosine). The duration of irradiation plays a critical role in the conformational changes brought about by it. Thus, the crosslinking brought about by zirconium aids in imparting stability to collagen against UV irradiation. |
| En ligne : |
https://drive.google.com/file/d/17h9gxmn8B1UdyOwM0SJkJ45WFcn_R3jX/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3256 |
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CIII, N° 12 (12/2008) . - p. 422-428
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