Journal of Pharmaceutical Sciences, Volume (111), No (9), Year (2022-9) , Pages (2531-2539)

Title : ( Preparation and Characterization of Platelet Lysate (Pl)-Loaded Electrospun Nanofibers for Epidermal Wound Healing )

Authors: Simin Nazarnejad , Farzad Kermani , Vahid Reza Askari , Seyede Atefe Hosseini , Alireza Ebrahimzadeh-Bideskan , Ali Moradi , Reza Kazemi Oskuee , Sahar Mollazadeh Beidokhti , Saeed Kargozar ,

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Abstract

Skin defects are among the most prevalent and serious problems worldwide; it is necessary to provide appropriate coverage in order to reduce possible mortality risk and accelerate wound healing. In this study, we have designed a series of extracellular matrix (ECM)-mimicking nanofibrous scaffolds composed of both natural (gelatin (GEL) and chitosan (CS)) and synthetic (poly(ε-caprolactone) (PCL) and poly (vinyl alcohol) (PVA)) polymers. The 3D constructs (PCL/GEL-PVA/CS) were reinforced with 5% (w/w) of platelet lysate (PL) for promoting cells viability and mobility. The physicochemical characterizations of nanofibers confirmed suitable hydrophilicity, controlled degradability, and water uptake of 250.31 ± 62.74%, and 222.425 ± 86.37% for the PCL/GEL-PVA/CS and PCL/GEL-PVA/CS + PL nanofibers, respectively. The scanning electron microscopy (SEM) images exhibited the mean diameter of the fabricated fibers (PCL/GEL-PVA/CS) in the range of 454 ± 257 nm. The blended samples (PCL/GEL-PVA/CS) were also confirmed to have higher ultimate tensile stress (UTS) (3.71 ± 0.32 MPa). From a biological point of view, the fabricated scaffolds showed appropriate blood compatibility and great potential to avoid bacterial invasion. Altogether, the tailored fabrication of PCL/GEL-PVA/CS nanofibers may be considered a suitable construct for epidermal wound healing.

Keywords

, Electrospun nanofibers Nanocomposite Chitosan Poly(ε, caprolactone) Gelatin Poly (vinyl alcohol) Platelet lysate (PL) Wound healing