31 results about "Mesoporous silicate" patented technology

The invention provides an article comprising, a mesoporous silicate matrix, such as a particle, having one or more pores; and one or more releasable caps obstructing one or more of the pores. The articles are useful as delivery vehicles for encapsulated agents such as therapeutic agents, polynucleotides, polypeptides and the like.

A mesoporous silicate is prepared by a method that includes combining a silicate precursor, a bifunctional catalyst, and a structure-directing surfactant in an aqueous medium having a pH of about 4 to about 10. A mesoporous silicate forms as an aqueous suspension and can then be isolated. The mesoporous silicate can be formed under mild conditions of temperature and pH, and it exhibits a surprisingly high degree of network condensation.

The invention discloses a mesoporous magnesium silicate / hydroxyapatite / polyether ether ketone composite material, a bone repair body, a preparation method and an application thereof. The preparation method of the mesoporous magnesium silicate / hydroxyapatite / polyether ether ketone composite material is as follows: 15wt%-20wt% mesoporous magnesium silicate, 10wt%-15wt% hydroxyapatite and 65wt%- 75wt% polyetheretherketone is uniformly mixed to obtain a mixed powder; then the mixed powder is mixed with absolute ethanol, ultrasonically dispersed, and then evaporated at 65°C to 80°C to obtain a composite powder; Composite powder processing and molding, vested; the composite material has good bioactivity and biocompatibility, has good mechanical compatibility with bone tissue, can stimulate bone growth, accelerate bone healing, and reduce the healing of bone implant materials time. The bone prosthesis has good bone mechanical compatibility and antibacterial property, high strength, good fatigue resistance, good corrosion resistance and long service life.

This invention relates to a vertically aligned mesoporous silicate film with site-selective metal deposition from a single polymeric precursor and to diverse catalytic applications thereof. There is an innovative approach of a single precursor to manufacture a vertically aligned mesoporous silicate thin film having high thermal and chemical resistance on a large-area silicon wafer (2 cm×3 cm). A precisely designed organic-inorganic block copolymer (BCP) polyethyleneoxide-ss-polyvinylcyclicsilazane (PEO-ss-PVCSZ) with a disulfide bridge that is chemically cleavable is newly synthesized as the single precursor for an oriented silicate nanoporous film, and using such a precursor, solvent annealing, self-assembling, block cleaving treatment, and then hydrolysis conversion of a polymer into a siliceous phase at room temperature are carried out, thus directly forming a mesostructure on the substrate.

The present invention relates to a benzene detecting element capable of detecting benzene selectively and highly sensitively, and a preparation process thereof. The benzene detecting element of the present invention is a mesoporous silicate for detecting benzene selectively and highly sensitively in atmospheric air, and the detecting element has a nanosized fine pore having a highly ordered periodic fine pore structure, and the wall of the nanosized fine pore has a sub-nanosized fine pore. The nanosized fine pore has a pore size of from 0.15 nm to 50 nm in radius, the sub-nanosized fine pore has a pore size of from 0.05 to 0.5 nm in radius, and at least the sub-nanosized fine pore among the fine pores is modified with an organosilicon functional group having a phenyl group, or a silanol group. The present invention also relates to a preparation process of the detecting element.