Hollow mesoporous silica silicon dioxide powder

Specification of Mesoporous silica silicon dioxide powder

CAS No. : 7631-86-9 ENINEC No.:231-545-4

Appearance:white Powder

Shape:hollow mesoporous spherical

Purity:99.9%

Size: 200-300nm, 450-550nm

Product Overview

As a common inorganic nanoparticle, silica nanoparticles have a series of advantages such as controllable morphology, ordered and adjustable pore structure, large specific surface area, easy modification of surface functional groups, and good biocompatibility, which make them widely used in biomedical, catalytic, environmental protection, optical and other fields. According to the morphological characteristics of silica nanoparticles, they can be roughly divided into three types: solid silica, mesoporous silica, and hollow mesoporous structured silica. As a common mesoporous material, hollow mesoporous silica nanoparticles (HMSN) have good stability, low toxicity, and high biocompatibility. Due to their highly permeable mesoporous shell and internal cavities, they are easy to load guest substances (such as organic small molecules, inorganic particles with optical or magnetic properties, protein macromolecules), and have broad application prospects in catalysis, drug controlled release, controlled synthesis, energy storage, and environmental protection.

Application

1. Drug delivery: Loading anti-cancer drugs into the pores of mesoporous silica to achieve slow drug release. By surface modification, drugs can target specific tumor cells, improving therapeutic efficacy while reducing damage to normal cells. 5. Organizational engineering: As a scaffold material, it promotes cell growth and tissue regeneration.1. Biomedical materials: Hollow mesoporous silica materials not only have a loose shell with adjustable pore size, but also have controllable internal cavities, which can serve as carriers for target substances, separating them from the surrounding environment and releasing them when transported to suitable locations. Therefore, it can be used as a carrier for drug sustained/controlled release, enzyme immobilization, and other applications.

2. Catalytic carrier: Hollow mesoporous SiO2 material has regular pore channels, large specific surface area, and good stability. The use of hollow mesoporous SiO2 material as a carrier for catalysts (such as nano Au, Pt, Ag, etc.) can improve the dispersion of the catalyst due to its large specific surface area. The catalyst nanoparticles highly dispersed in its pores are not easily agglomerated and grow, thus improving the stability of the nanoparticles in the reaction and enhancing the catalytic efficiency.

3. Adsorption material: Hollow mesoporous SiO2 material is an excellent carrier for adsorption materials due to its large pore volume, adjustable pore size, and high specific surface area, stable and reusable properties. Its surface contains a large amount of easily modifiable silanol groups, which can be used to prepare materials with selective adsorption and separation by introducing functional groups such as - NH2, - S -, - SH, etc.