Preparation and evaluation of bilayer films based on collagen and carboxymethylcellulose for wound therapy.

Collagen is the most abundant protein of the human body and a widely used biomaterial across sectors due to its favourable properties resulting from its physiological proximity. It plays a key role in the process of wound healing and tissue repair and is therefore used in modern wound dressings in various forms, either alone or in combination with other materials. Collagen films also offer potential applications for these purposes, because collagen has good film-forming properties and is commonly used in the food industry.

3-Butyl-1-(5-nitrobenzo[c][1,2]thiazol-3-yl)-3-phenyltriazene.

The molecule of the title compound, C(17)H(17)N(5)O(2)S, consists of three pi systems, viz. two aromatic rings and the triazene moiety, which are mutually deconjugated although coplanar. The n-butyl chain is roughly perpendicular to the molecular plane, with the terminal methylene and methyl groups disordered between two equally populated positions.