Advanced ceramics development is a promising area in regenerative medicine; although there are different biomaterials with features that make them viable enough, their improvement and optimization is required to produce biomaterials easier to bio assimilate and promote a faster tissue recovery. At this work a nanostructured bioglass based biomimetic scaffold is developed, beginning with the sol-gel synthesis parameters establishment coupled with a spray drying stage. through X-ray diffraction the crystal na 6 ca 3 si 6 o 18 phase was characterized, this phase is common to find in almost every 45s5 bioglass different synthesis processes, also a standard of mammalian hydroxyapatite was prepared to be used as a comparative control in determining the bioglass scaffold bioactivity. three-dimensional structure was characterized by optical and scanning electron microscopy, coupled to a semi-quantitative technique (eDs) to determine the composition of the synthesized biomaterial. subsequently, simulated body fluid (sBF) was used as an in vitro system, whose composition emulates the ionic blood concentration to evaluate the scaffold bioactivity.
The construction of a SnO2 and ZnO thin film heterostructure is an efficient way to improve the photocatalytic properties of ZnO. However, the current techniques to produce it, for instance, chemical and physical vapor deposition are expensive and therefore not affordable for everyone. Several efforts have been made in order to obtain high quality thin films with lower cost using sol-gel base techniques. The aim of this work is to process high quality and low-cost SnO2 and ZnO thin film heterostructures supported on glass. The thin films were deposited by the spin coating method. The samples obtained were characterized by XRD, SEM, UV-Vis and FTIR. The thin film heterostructure exhibits homogeneous size nanoparticles (10~50 nm) that conform the surface and uniform submicronic thickness. High values of optical transmission >80% were measured for the heterostructure in the range (380-740 nm). The band gap of Eg 3.25 and 3.69 eV were obtained from Tauc’s plot.
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