Title
Incorporation of chloramphenicol and captopril into poly(GL)-b-poly(GL-co-TMC-co-CL)-b-poly(GL) monofilar surgical sutures
Date Issued
05 May 2017
Access level
open access
Resource Type
journal article
Author(s)
Márquez Y.
Cabral T.
Lorenzetti A.
Franco L.
Turon P.
Puiggalí J.
Universitat Politècnica de Catalunya
Publisher(s)
John Wiley and Sons Inc.
Abstract
Incorporation of chloramphenicol and captopril into coated and uncoated monofilament sutures was evaluated, as well as the derived bactericide and wound healing effects. To this end, a commercially available suture and an amorphous random copolymer constituted by trimethylene carbonate and lactide units were considered. The suture had a segmented architecture based on polyglycolide hard blocks and a soft block constituted by glycolide, trimethylene carbonate and ε-caprolactone units. Chloramphenicol was better loaded when the coating copolymer was employed due to its protective effect whereas captopril showed an opposite behavior due to partial solubilization during immersion in the coating bath. Interestingly, the release behavior was very different for the two studied drugs since a significant retention of chloramphenicol was always detected, suggesting the establishment of interactions between drug and copolymers. On the other hand, delivery of captopril showed a typical dose dependent behavior. A low in vitro toxicity of the two drugs was determined considering both epithelial-like and fibroblast-like cells. Bactericide effect of chloramphenicol against Gram-negative and Gram-positive bacteria was demonstrated at a dose that was non-toxic for all assayed cells. An accelerating wound healing effect of captopril was also demonstrated for early events. In this case, the use of a coating copolymer was fundamental to avoid cytotoxic effects on highly loaded sutures. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44762.
Volume
134
Issue
17
Language
English
OCDE Knowledge area
Ingeniería química Farmacología, Farmacia
Scopus EID
2-s2.0-85010426615
Source
Journal of Applied Polymer Science
ISSN of the container
00218995
Sponsor(s)
Authors are in debt to supports from MINECO and FEDER (2015–69547-R) and the Generalitat de Catalunya (2014SGR188). The work has also been carried out under a research agreement between B. Braun Surgical, S. A. and the Universitat Politècnica de Catalunya. Ms Y. Márquez thanks financial support from B. Braun Surgical S.A.
Sources of information: Directorio de Producción Científica Scopus