The nanofibers fabricated by using an electrospinning process have often been used for drug delivery system (DDS). DDS should be needed to minimize side effects of drugs, maximize the properties of medicine, and efficiently deliver the required amount...
The nanofibers fabricated by using an electrospinning process have often been used for drug delivery system (DDS). DDS should be needed to minimize side effects of drugs, maximize the properties of medicine, and efficiently deliver the required amount of drugs to the diseased area.
Titania (TiO2) is used in orthopaedic implants because of its good biocompatibility. Hydroxyapatite (HA) is a well-known and a valuable implant material with biocompatibility and bioactive properties. Bisphosphonates such as pamidronate inhibit osteoclastic activity and reduce bone resorption.
In this study, TiO2/HA composite nanofibers with different compositions were prepared by electrospinning their sol precursors of TiO2, HA, and tetraethyl orthosilicate (TEOS) and calcining the as-spun fibers at high temperatures. Pamidronate was then immobilized on the surface of nanofibers using succinic anhydride or poly(ethylene glycol) bis(carboxymethyl) ether as the spacer.
The pamidronic acid-conjugated nanofibrous scaffolds were characterized by SEM, TEM, TGA and ESCA. These nanofiber meshes for use as bone scaffolds were assessed by using osteoblasts and osteoclasts in terms of adhesion, proliferation and differentiation.