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Baicalin as a model drug, relatively porous colloidal silicon dioxide and silica as the dissolution characteristics of its carrier solid dispersion method: colloidal silica, porous silica as a carrier solvent for preparation of baicalin solid dispersion, in vitro dissolution test, scanning electron microscopy (SEM), differential scanning method, the formation of X- ray diffraction identification solid dispersion.

Not only nano-silicon dioxide mixed with other polymeric composites can be set after the performance of the two materials, but also produce some complex performance, it is widely used in the production of coatings, adhesives, plastics and flame-retardant materials like. The following briefly describes a method for preparing nano-silicon dioxide and silane coupling agent KH-550, NDZ-201 titanate coupling agent applied to the surface-modified silica nanoparticles by modified experimental analysis result.

In order to study the preparation of silicon dioxide (SiO2) anti-reflection film photonic crystal using laser interferometry techniques for preparing photolithography and inductively coupled plasma etching (ICP) experiment. Laser interference lithography method can be flexible, rapid preparation of large-area periodic nanostructures, while having good anisotropic ICP etching, scanning electron microscope images (SEM) showed that SiO2 photonic crystals Two Experimental Morphology good preparation process. By homemade measurement platform to achieve various incident angles of incident light measurement of transmittance of the photonic crystal, the measurements show that the photonic crystal to 1170nm incident has good antireflection effect.



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