Simultaneous synthesis of modified Binol-periodic mesoporous organosilica SBA-15 type material. Application as catalysts in asymmetric sulfoxidation reactions

Recent advances in hybrid periodic mesostructured organosilica materials: opportunities from fundamental to biomedical applications

“…[15][16][17][18][20][21][22][23][24][25][26] As a result the organic groups became a part of the wall structure, providing functionality not only to its surface but to the entire mesoporous structure. [6][7][8][9][10][11][12][13][14] However, both methods suffer from inhomogeneous distribution of organic groups inside the pores that severely block the pore entrance due to the incompatibility of silica and organosilica structures. Most of the long chain containing trialkoxysilsesquioxanes/silsesquioxanes cannot maintain a mesoporous structure aer template removal and, being also unstable to the condensation conditions, undergo intramolecular cyclization or simple phase separation from template.…”

“…Their use depends on the pore size and shape and on the presence of functional groups in their nal mesoporous framework. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] In 1992, the discovery of pure mesoporous silica structures (known as MCM41, where MCM stands Mobil Composition of Matter) via the surfactant-Wahab has received his BSc (Hons) and MSc in Chemistry from University of Rajshahi, Bangladesh. He has earned his PhD degree in Materials Chemistry and Polymer Engineering from Pusan National University in South Korea.…”

“…In 1998, silica based SBA15 and associated similar kind of structures with different wall thicknesses were also reported. [11][12][13][14][15][16][16][17][18][19][20][21][22][23][24] Efforts were also made to overcome the neutral nature of inorganic mesoporous silica framework by functionalization with various functional groups to expand their applications in different research areas. Another important limitation that concerns with the hydro-thermal stability of PMS structures is when they are present in a water/aqueous medium.…”

Cytostatic and Cytotoxic Effects of Hollow-Shell Mesoporous Silica Nanoparticles Containing Magnetic Iron Oxide

“…Over the past few decades, nanotechnology has emerged as a discipline with multiple applications in fields such as energy, environment, optics, and biomedicine [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. Nanoparticles (NPs) have been investigated for biomedical applications because their versatility enables the development of smart materials that can target specific tissues and because of their potential as drug vehicles.…”

A magnetically recyclable heterogeneous BINOL organocatalyst for the asymmetric aldol reaction

“…There have been some efforts to prepare recyclable heterogeneous BINOL organocatalysts by immobilising BINOL onto different polymeric materials and silica gel [1b, [10][11][12][13][14]. However, filtration is required to recover these heterogeneous BINOL organocatalyst.…”