Selective oxidation of thioanisole by titanium complexes immobilized on mesoporous silica nanoparticles: elucidating the environment of titanium(iv) species

2019 ◽  
Vol 9 (3) ◽  
pp. 620-633 ◽  
Author(s):  
Paula Cruz ◽  
Mariano Fajardo ◽  
Isabel del Hierro ◽  
Yolanda Pérez
Keyword(s):  
Solid State ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Selective Oxidation ◽  
Mesoporous Silica Nanoparticles ◽  
Electrochemical Techniques ◽  
Mas Nmr ◽  
Titanium Complexes ◽  
Coordination Environment

The coordination environment of titanium of the catalysts was investigated by DRUV–vis, Raman and 47/49Ti MAS-NMR spectroscopies and solid-state electrochemical techniques.

Solid-State NMR Study of MCM-41-type Mesoporous Silica Nanoparticles

2005 ◽  
Vol 127 (9) ◽  
pp. 3057-3068 ◽  
Author(s):  
Julien Trébosc ◽  
Jerzy W. Wiench ◽  
Seong Huh ◽  
Victor S.-Y. Lin ◽  
Marek Pruski
Keyword(s):  
Solid State ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Solid State Nmr ◽  
Mesoporous Silica Nanoparticles ◽  
Nmr Study ◽  
Mcm 41

scholarly journals Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles: a study by conventional and DNP-enhanced 29Si solid-state NMR

2017 ◽  
Vol 19 (3) ◽  
pp. 1781-1789 ◽  
Author(s):  
Takeshi Kobayashi ◽  
Dilini Singappuli-Arachchige ◽  
Zhuoran Wang ◽  
Igor I. Slowing ◽  
Marek Pruski
Keyword(s):  
Spatial Distribution ◽  
Solid State ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Functional Groups ◽  
Solid State Nmr ◽  
Mesoporous Silica Nanoparticles ◽  
Spatial Distributions ◽  
Organic Functional Groups

DNP-enhanced solid-state NMR determined spatial distributions of organic functionalities attached to surfaces of mesoporous silica nanoparticles via co-condensation and grafting.

scholarly journals Spatial distribution of organic functional groups supported on mesoporous silica nanoparticles (2): a study by 1H triple-quantum fast-MAS solid-state NMR

2018 ◽  
Vol 20 (34) ◽  
pp. 22203-22209 ◽  
Author(s):  
Takeshi Kobayashi ◽  
Dilini Singappuli-Arachchige ◽  
Igor I. Slowing ◽  
Marek Pruski
Keyword(s):  
Spatial Distribution ◽  
Solid State ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Solid State Nmr ◽  
Quantum Correlation ◽  
Mesoporous Silica Nanoparticles ◽  
Single Quantum ◽  
Organic Functional Groups ◽  
Fast Mas

Spatial distribution of organic functionalities deposited on mesoporous silica with low loading was determined by 1H triple-quantum/single quantum correlation solid-state NMR.

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.

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