scholarly journals Synthesis of colloidal Janus nanoparticles by asymmetric capping of mesoporous silica with phenylsilsesquioxane

2015 ◽  
Vol 51 (15) ◽  
pp. 3211-3214 ◽  
Author(s):  
Hiroto Ujiie ◽  
Atsushi Shimojima ◽  
Kazuyuki Kuroda
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Aqueous Dispersion ◽  
Composite Nanoparticles ◽  
Mesostructured Silica ◽  
Janus Nanoparticles

Janus-type mesoporous silica nanoparticles asymmetrically capped with non-porous phenylsilsesquioxane have been prepared by simply adding phenyltriethoxysilane to an aqueous dispersion of mesostructured silica–surfactant composite nanoparticles.

AMINE MODIFIED MESOSTRUCTURED SILICA NANO PARTICLES ENHANCED ADSORPTION OF PHENOL

2015 ◽  
Vol 75 (6) ◽  
Author(s):  
N.F.M. Salleh ◽  
A.A. Jalil ◽  
S. Triwahyono ◽  
S.N. Nordin ◽  
N.H.N. Kamarudin ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Adsorption Energy ◽  
Pore Volume ◽  
Mesoporous Silica Nanoparticles ◽  
Nano Particles ◽  
Amine Group ◽  
Adsorptive Removal ◽  
Mesostructured Silica ◽  
Enhanced Adsorption

Mesoporous silica nanoparticles (MSN) were synthesized and modified with (3-aminopropyl) triethoxysilane (APTES) using co-condensation (co-MSN) and post-grafting (post-MSN) methods. Both modification methods seem to alter the crystallinity, surface area, and pore volume as compared to the unmodified MSN. The activity of all MSNs was tested for the adsorptive removal of phenol. Co-MSN showed significantly good adsorptivity towards 10 mg L-1 of phenols, followed by post-MSN and MSN. It was found that the highest activity of co-MSN was resulted from the additional higher adsorption energy from the quaternary alkylammonium groups (Si–C–C–C–[N+–(CH3)3]) of cationic template and also from the amine group of the APTES functionalization, which showed more advantages as compared to post-MSN and MSN.

Recent Advances in Application of Azobenzenes Grafted on Mesoporous Silica Nanoparticles in Controlled Drug Delivery Systems Using Light as External Stimulus

2020 ◽  
Vol 20 (11) ◽  
pp. 1001-1016
Author(s):  
Sandra Ramírez-Rave ◽  
María Josefa Bernad-Bernad ◽  
Jesús Gracia-Mora ◽  
Anatoly K. Yatsimirsky
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Drug Delivery Systems ◽  
Mesoporous Silica Nanoparticles ◽  
High Surface ◽  
Delivery Systems ◽  
Surface Reactivity ◽  
External Stimulus ◽  
Recent Advances

Hybrid materials based on Mesoporous Silica Nanoparticles (MSN) have attracted plentiful attention due to the versatility of their chemistry, and the field of Drug Delivery Systems (DDS) is not an exception. MSN present desirable biocompatibility, high surface area values, and a well-studied surface reactivity for tailoring a vast diversity of chemical moieties. Particularly important for DDS applications is the use of external stimuli for drug release. In this context, light is an exceptional alternative due to its high degree of spatiotemporal precision and non-invasive character, and a large number of promising DDS based on photoswitchable properties of azobenzenes have been recently reported. This review covers the recent advances in design of DDS using light as an external stimulus mostly based on literature published within last years with an emphasis on usually overlooked underlying chemistry, photophysical properties, and supramolecular complexation of azobenzenes.

Fluorescent spherical mesoporous silica nanoparticles loaded with emodin: Synthesis, cellular uptake and anticancer activity

2021 ◽  
Vol 119 ◽  
pp. 111619
Author(s):  
Paul Jänicke ◽  
Claudia Lennicke ◽  
Annette Meister ◽  
Barbara Seliger ◽  
Ludger A. Wessjohann ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Anticancer Activity ◽  
Silica Nanoparticles ◽  
Cellular Uptake ◽  
Mesoporous Silica Nanoparticles

Exploiting mesoporous silica nanoparticles as versatile drug carriers for several routes of administration

2021 ◽  
Vol 312 ◽  
pp. 110774
Author(s):  
Rafael Miguel Sábio ◽  
Andréia Bagliotti Meneguin ◽  
Aline Martins dos Santos ◽  
Andreia Sofia Monteiro ◽  
Marlus Chorilli
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Drug Carriers ◽  
Routes Of Administration
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