Preparation and characterization of novel bone scaffolds based on electrospun polycaprolactone fibers filled with nanoparticles.
Novel bone-scaffolding materials were successfully fabricated by electrospinning from polycaprolactone (PCL) solutions containing nanoparticles of calcium carbonate (CaCO(3)) or hydroxyapatite (HA). The diameters of the as-spun fibers were found to increase with the addition and increasing amounts of the nanoparticles. The observed increase in the diameters of the as-spun fibers with the addition and increasing amounts of the nanoparticulate fillers was responsible for the observed increase in the tensile strength of the obtained fiber mats. An increase in the concentration of the base PCL solution caused the average diameter of the as-spun PCL/HA composite fibers to increase. Increasing applied electrical potential also resulted in an increase in the diameters of the obtained PCL/HA composite fibers. Lastly, indirect cytotoxicity evaluation of the electrospun mats of PCL, PCL/CaCO(3), and PCL/HA fibers based on human osteoblasts (SaOS2) and mouse fibroblasts (L929) revealed that these as-spun mats posed no threat to the cells, a result that implied their potential for utilization as bone-scaffolding materials.
Wutticharoenmongkol
Patcharaporn
P
Technological Center for Electrospun Fibers, The Petroleum and Petrochemical College, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.
Sanchavanakit
Neeracha
N
Pavasant
Prasit
P
Supaphol
Pitt
P
D020341:Absorbable Implants; D000818:Animals; D001672:Biocompatible Materials; D001861:Bone Regeneration / Q000502:physiology*; D002119:Calcium Carbonate; D017886:Durapatite; D004563:Electrochemistry / Q000379:methods*; D005347:Fibroblasts / Q000187:drug effects; D006801:Humans; D008422:Materials Testing; D051379:Mice; D008855:Microscopy, Electron, Scanning; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010006:Osteoblasts / Q000187:drug effects; D010316:Particle Size; D011091:Polyesters / Q000737:chemistry* / Q000633:toxicity; D023822:Tissue Engineering / Q000379:methods*; D018675:Toxicity Tests; D014961:X-Ray Diffraction
D001672:Biocompatible Materials; D011091:Polyesters; C016240:polycaprolactone; D017886:Durapatite; D002119:Calcium Carbonate