Title
Semiconducting, biodegradable and bioactive fibers for drug delivery
Date Issued
01 August 2016
Access level
open access
Resource Type
journal article
Author(s)
Universitat Politècnica de Catalunya
Publisher(s)
BME-PT and GTE
Abstract
In this work we present the drug release properties and morphological studies of fibers formed by mixing different ratios of poly(lactic acid) (PLA) and poly(3-thiophene methyl acetate) (P3TMA) loaded with four drugs (ciprofloxacin, chlorhexidine dihydrochloride, triclosan and ibuprofen sodium salt). Thus, the main aim of this study is to prove that the excellent cellular response of PLA-P3TMA biocompatible scaffolds can be successfully combined with essential applications as drug carrier and delivery systems. Atomic force microscopic (AFM) and scanning electron microscopic (SEM) micro-graphs of PLA-P3TMA fibers indicate that the presence of the conducting polymer inside the PLA matrix affects the surface morphology, resulting in a significant increment of the bulk conductivity with respect to PLA fibers. Electrospun hybrid fibers of PLA and P3TMA successfully load both hydrophilic and hydrophobic drugs, the release profiles depending on the release environment (i.e. the release rate increases with the hydrophobicity of the medium). Finally, our results prove that the antibacterial activity of the drugs is not affected by their interactions with the PLA-P3TMA matrix.
Start page
628
End page
646
Volume
10
Issue
8
Language
English
OCDE Knowledge area
Ingeniería química
Subjects
Scopus EID
2-s2.0-84973382855
Source
Express Polymer Letters
ISSN of the container
1788618X
Sponsor(s)
Authors are indebted to supports from MICINN and FEDER (MAT2012-34498 and MAT2012-36205). M.M.P.-M. thanks financial support through a FPI-UPC grant. Support for the research of C.A. was received through the prize ‘ICREA Academia’ for excellence in research funded by the Generalitat de Catalunya.
Sources of information:
Directorio de Producción Científica
Scopus