In the present work, we report the preparation by the electrospinning technique and the characterization of poly(3hexylthiophene)-polyethylene oxide-single wall carbon nanotubes (P3HT-PEO-SWCNT) fibers. The SWCNT concentration into the P3HT-PEO matrix is varied from 0.2 to 1%. Optical, electrical, thermal, and morphological properties of the P3HT-PEO-SWCNT fibers are determined. The incorporation of the SWCNT into the P3HT-PEO polymer matrix is determined by SEM, EDS analysis, TEM, FTIR, and Raman. The optical properties are analyzed by the determination of photoluminescence and photoresponse. The stability and degradation temperature of the fibers are determined by TGA. The morphology of the P3HT-PEO-SWCNT fibers depends on the SWCNT concentration, in all cases non-beaded fibers are obtained. It is found that the SWCNT incorporating into the P3HT-PEO fibers increases the conjugation length of P3HT chains. Charge transfer from P3HT to SWCNT is corroborated by photoluminescence and Raman. The P3HT-PEO-SWCNT fibers obtained in this work exhibit interesting optoelectronic properties that could be useful for device applications.

The purpose of this study is to evaluate the drug delivery behavior and other properties of electrospun composite membranes for potential use in tissue engineering. Tecoflex® (PU1), and a lab‐made polyurethane (PU2) were studied. They were mixed with nano‐hydroxyapatite (PU1‐nHA and PU2‐nHA) and vancomycin (PU1‐VA and PU2‐VA) or mixed with both, nHA and VA (PU1‐nHA‐VA and PU2‐nHA‐VA). Scanning electron microscopy showed a porous structure in all the electrospun membranes with smooth fibers in PU1 and its composites with sizes in the range of 0.6–0.9 μm and nanoparticles of HA, both, adhered and embedded on the PU fibers were observed. nHA and VA affected the thermal and mechanical behavior of composites. Elastic modulus, cytotoxicity, and kinetic release were affected by the PU and nHA. Cell viability up to 75% showed that all membrane extracts are not cytotoxic while microbial inhibition activity was observed in PU1‐VA, PU1‐nHA‐VA, and PU2‐VA.