Title
Scaffolds with Tunable Properties Constituted by Electrospun Nanofibers of Polyglycolide and Poly(ε-caprolactone)
Date Issued
01 July 2018
Access level
open access
Resource Type
journal article
Author(s)
Keridou I.
Franco L.
Turon P.
Puiggalí J.
Universitat Politècnica de Catalunya
Publisher(s)
Wiley-VCH Verlag
Abstract
Electrospun scaffolds constituted by different mixtures of two biodegradable polyesters are prepared. Specifically, materials with well differentiated properties can be derived from the blending of hydrophilic polyglycolide (PGA) and hydrophobic poly(ε-caprolactone) (PCL), which are also two of the most applied polymers for biomedical uses. Electrospinning conditions are selected in order to get homogeneous and continuous fibers with diameters in the nano/micrometric range. These conditions are also applied to load the different scaffolds with curcumin (CUR) and polyhexamethylene biguanide (PHMB) as hydrophobic and hydrophilic bactericide compounds, respectively. Physicochemical characterization of both unloaded and loaded scaffolds is performed and involved Fourier transform infrared and 1H NMR spectroscopies, morphological observations by scanning electron microscopy, study of thermal properties through calorimetry and thermogravimetric analysis, and evaluation of surface characteristics through contact angle measurements. Release behavior of the loaded scaffolds is evaluated in two different media. Results point out a well differentiated behavior where the delivery of CUR and even PHMB are highly dependent on the PGA/PCL ratio, the capability of the medium to swell the polymer matrix, and the diffusion of the selected solvent into the electrospun fibers. All samples show a bactericide effect in both hydrophilic cell culture and hydrophobic agar media.
Volume
303
Issue
7
Language
English
OCDE Knowledge area
Nano-tecnología Ingeniería química
Scopus EID
2-s2.0-85046461280
Source
Macromolecular Materials and Engineering
ISSN of the container
14387492
Sponsor(s)
The authors are in debt to supports from MINECO and FEDER (MAT2015-69547-R). The work was also carried out under a research agreement between B. Braun Surgical S.A. and the Universitat Politècnica de Catalunya. I.K. thanks financial support from B. Braun Surgical S.A.
Sources of information: Directorio de Producción Científica Scopus