Synthesis And Structural Characterization of Samarium Doped Silica Nanopowder

In the current research work, we demonstrate the synthesis of Samarium doped silica nanopowder through wetchemical technique. The phenomenon correlated to structural morphology is proposed and conferred. Nanocrystalline form of Sm-SiO2 powder has been formulated via sol-gel process. Performance of this method is absolutely correct for massive production and it is also a profitable in the sense of money. The ready sample are treated thermally at temperature 900ºC which are characterized through different supportive instrumental techniques as like ‘X-Ray Diffraction’ (XRD), ‘Fourier Transform Infrared Spectroscopy’ (FTIR) and ‘Scanning Electron Microscope’ (SEM) with EDX etc. The cubic phase of prepared sample is confirmed by XRD with average crystalline size ~18 nm using well known Debye-Scherer's formula and lattice constant is calculated as 10.8 Å. The surface morphology and microparticles structure information are collected from the SEM study. Investigation proposed that different nanoscopic collaborations play a key role in defining the morphology and crystal phase of ready materials. Presently, activity in this area is concentrated on the synthesis of glowing material via advanced methods and inspecting standard utilization in the area of microchips, photonics, flashes, sensors, optical intensification and fluorescent detecting appliances.

Manganese-doped Mesoporous Silica Nanopowder for Pharmaceutical Applications

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Injectable nanosilica–chitosan microparticles for bone regeneration applications

This study was aimed at assessing the effects of silica nanopowder incorporation into chitosan-tripolyphosphate microparticles with the ultimate goal of improving their osteogenic properties. The microparticles were prepared by simple coacervation technique and silica nanopowder was added at 0% (C), 2.5% (S1), 5% (S2) and 10% (S3) (w/w) to chitosan. We observed that this simple incorporation of silica nanopowder improved the growth and proliferation of osteoblasts along the surface of the microparticles. In addition, the composite microparticles also showed the increased expression of alkaline phosphatase and osteoblast specific genes. We observed a significant increase ( p < 0.05) in the expression of alkaline phosphatase by the cells growing on all sample groups compared to the control (C) groups at day 14. The morphological characterization of these microparticles through scanning electron microscopy showed that these microparticles were well suited to be used as the injectable scaffolds with perfectly spherical shape and size. The incorporation of silica nanopowder altered the nano-roughness of the microparticles as observed through atomic force microscopy scans with roughness values going down from C to S3. The results in this study, taken together, show the potential of chitosan-tripolyphosphate-silica nanopowder microparticles for improved bone regeneration applications.

Collection of Industrial Oil Using Nanoparticles and Porous Powders of Silica

Industrial oil was collected using hydrophobic silica powders. Silica nanopowder was modified with octadecyltriethoxysilane (OTS) using spray pyrolysis reactor continuously. Besides nanoparticles, mesoporous silica powder synthesized using Pluronic P104 was adopted as another oil adsorbents. Spherical macroporous or meso-macroporous silica particles were prepared by self-assembly for the removal of oil. The effects of the amount of powder on the oil adsorption were studied and compared with the results of various silica powders. The meso-macroporous silica particles were found to be the most efficient, indicating that both specific surface area and porosity played crucial role.