Room temperature synthesis of nanoporous silica spheres and their formation mechanism

Facile synthesis of hierarchical MCM-41 spheres with an ultrahigh surface area and their application for removal of methylene blue from aqueous solutions

“…Hierarchical mesoporous silica was prepared in a manner similar to that of a previously reported method, 30 except ethanol was used to control the morphology of the particles. A schematic illustration of the preparation process of the HS was shown in Fig.…”

Novel Fluorescent Silica Nanoparticles: Towards Ultrabright Silica Nanoparticles

“…Here we report on an attempt to do the above, to decrease the size of the ultrabright fluorescent silica particles to nanometer dimensions. The main idea of the synthesis described here comes from the results of References 11 and,12 in which it was shown that the nanoporous shapes passed through a stage of “seed” formation. Here the nanometer‐sized particles are synthesized using a method based on an “origami” type of templated sol–gel synthesis13, 14 with modification of Reference [8].…”

Shape-Mediated Biological Effects of Mesoporous Silica Nanoparticles

“…One hypothesis proposed that the shapes of particles themselves are formed in an equilibrium process driven by the minimization of energy and balancing it with entropy, i.e., described by the Boltzmann distribution of its free energy; 20 the other one can be explained as the defects typical for liquid crystals, the templates which were formed during the initial stages of the synthesis. [21][22][23] Experimentally, Particle with various ARs could be realized by the regulation of the catalyst types and amounts, [24][25][26][27] temperature, 25 stirring rate, 28 the molar ratios of co-templates, 29 30 surfactant concentration, 31 the introduction of organoalkoxysilane precursors, 32 33 and molar ratio of reaction mixture (silica source, surfactant, catalyst, and solvent). [34][35][36] In this section, we emphasized on the discussion of several general preparation strategies and the formation mechanism of MSNs from sphere to rod was also focused.…”