Abstract
A nonwoven fabric scaffold for guided bone regeneration (GBR) consisting of siloxane-poly(lactic acid) (PLA)-vaterite hybrid material (SiPVH) was prepared by an electrospinning method. To improve the cellular compatibility of the fabric, the fibers were completely coated with hydroxyapatite (HA) by soaking in simulated body fluid. The HA-coated SiPVH nonwoven fabric contained large-sized spaces and showed the ability of releasing soluble silica and calcium species, which have previously been reported to stimulate osteogenic cells at the genetic level. A new type of GBR membrane was prepared by bonding SiPVH fabric with PLA nonwoven fabric with small-sized pores for preventing the intrusion of soft tissue. The resultant bi-layered membrane was expected to be effective not only for having an open structure for bone formation and a barrier to soft tissue, but also for enhancing bone growth by the release of ionic species.
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