We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Alginate grafted with poly(ε-caprolactone): effect of enzymatic degradation on physicochemical properties.
- Authors
Benykhlef, Samir; Dulong, Virginie; Bengharez, Zohra; Picton, Luc; Guemra, Kaddour; Le Cerf, Didier
- Abstract
The paper discusses the enzymatic behaviour of a series of copolymers composed of alginate grafted with poly(ε-caprolactone) (PCL) of various lengths and degrees of substitution. The study is focused on viscosity measurements and pyrene probe fluorescence with or without two enzymes: alginate lyase, which breaks the alginate backbone; and esterase, which breaks PCL pendent groups. Alginate lyase is inactive at pH = 3.8 and degrades quickly all copolymers at pH = 6.3. The degradation is not complete and is slowed down by the presence of PCL. Esterase degrades only copolymers with long pendent PCL groups. It has no effect on copolymers when PCL has a length of 530 g mol−1. These systems are good candidates for controlled release of drugs using an enzymatic method. Copyright © 2012 Society of Chemical Industry
- Subjects
PYRENEES; CAPROLACTONES; ESTERASES; ALGINATES; VISCOSITY
- Publication
Polymer International, 2012, Vol 61, Issue 9, p1456
- ISSN
0959-8103
- Publication type
Article
- DOI
10.1002/pi.4232