Regenerative medicine by applying tissue engineering and cell transplantation has provided a new door in wound healing. This study tracked healing effect of human Wharton's jelly stem cells (WJSCs) labeled with superparamagnetic iron oxide nanoparticles (SPIONs) seeded onto poly vinyl alcohol/chitosan/carbon nanotubes (PVA/CS/CNT) in burn wounds by magnetic resonance imaging (MRI) and Prussian Blue staining. .
View Article and Find Full Text PDFIn this study, the novel poly (lactic-co-glycolic acid)-Hydroxyapatite nanoparticles (PLGA/HA) nanocomposite scaffolds were fabricated with solvent casting and particulate leaching (SCPL) method. The role of sodium chloride (NaCl) particles with diameters of 250-400 μm as porogen agent in the mechanical strength of the produced scaffolds was evaluated. The prepared scaffolds were characterized using Fourier transform infrared (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), thermal gravimetric analysis (TGA) and compressive tests.
View Article and Find Full Text PDFJ Mech Behav Biomed Mater
September 2014
Fluorapatite-titania coated Ti-based implants are promising for using in dental surgery for restoring teeth. One of the challenges in implantology is to achieve a bioactive coating with appropriate mechanical properties. In this research, simple sol-gel method was developed for synthesis of fluorapatite-titania-carbon nanotube decorated with antibacterial agent.
View Article and Find Full Text PDFSince bone defects can lead to various disabilities, in recent years, many increasing attempts have been made in bone tissue engineering. In this regard, scaffolds have attracted a lot of attention as three dimensional substrates for cell attachment which improve successful tissue engineering. The aim of the present study was to provide an interconnected porous scaffold to facilitate cell infiltration.
View Article and Find Full Text PDFNanofillers can reduce enamel demineralization without compromising physical properties of the composite. The aim of this study was to evaluate shear bond strength (SBS) and antibacterial effects of an orthodontic composite after adding titanium oxide (TiO2) nanoparticles. Light cure orthodontic composite paste (Transbond XT) was blended with TiO2 nanoparticles.
View Article and Find Full Text PDF