scholarly journals Silver- and sulfadiazine-loaded nanostructured silica materials as potential replacement of silver sulfadiazine

2014 ◽  
Vol 2 (37) ◽  
pp. 6283-6292 ◽  
Author(s):  
Ágnes Szegedi ◽  
Margarita Popova ◽  
Krassimira Yoncheva ◽  
Judit Makk ◽  
Judith Mihály ◽  
...  
Keyword(s):  
Antibacterial Properties ◽  
Silver Sulfadiazine ◽  
Nanoporous Silica ◽  
Silica Materials ◽  
Nanostructured Silica

Sulfadiazine-loaded silver nanoporous silica carriers have similar antibacterial properties as silver sulfadiazine.

scholarly journals Slow dynamics of supercooled water confined in nanoporous silica materials

2004 ◽  
Vol 16 (45) ◽  
pp. S5403-S5436 ◽  
Author(s):  
L Liu ◽  
A Faraone ◽  
C-Y Mou ◽  
C-W Yen ◽  
S-H Chen
Keyword(s):  
Supercooled Water ◽  
Nanoporous Silica ◽  
Slow Dynamics ◽  
Silica Materials

Modelling the assembly of nanoporous silica materials

2014 ◽  
Vol 34 (1) ◽  
pp. 35-70 ◽  
Author(s):  
Scott M. Auerbach ◽  
Wei Fan ◽  
Peter A. Monson
Keyword(s):  
Nanoporous Silica ◽  
Silica Materials

Nanostructured silica materials in olefin polymerisation: From catalytic behaviour to polymer characteristics

2012 ◽  
Vol 37 (12) ◽  
pp. 1764-1804 ◽  
Author(s):  
João M. Campos ◽  
João Paulo Lourenço ◽  
Henri Cramail ◽  
M. Rosário Ribeiro
Keyword(s):  
Silica Materials ◽  
Catalytic Behaviour ◽  
Nanostructured Silica

scholarly journals Preparation of resveratrol-loaded nanoporous silica materials with different structures

2014 ◽  
Vol 219 ◽  
pp. 37-42 ◽  
Author(s):  
Margarita Popova ◽  
Agnes Szegedi ◽  
Vesselina Mavrodinova ◽  
Natasa Novak Tušar ◽  
Judith Mihály ◽  
...  
Keyword(s):  
Nanoporous Silica ◽  
Silica Materials

Selective grafting of titanium on periodic nanoporous silica materials

2008 ◽  
Vol 113 (1-3) ◽  
pp. 542-553 ◽  
Author(s):  
Laura Barrio ◽  
Jose M. Campos-Martín ◽  
M. Pilar de Frutos-Escrig ◽  
Jose L.G. Fierro
Keyword(s):  
Nanoporous Silica ◽  
Silica Materials

scholarly journals pH-responsive release of chlorhexidine from modified nanoporous silica nanoparticles for dental applications

2016 ◽  
Vol 17 (1-2) ◽  
Author(s):  
Hendrik Fullriede ◽  
Philipp Abendroth ◽  
Nina Ehlert ◽  
Katharina Doll ◽  
Jörn Schäske ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Antibacterial Properties ◽  
Controlled Drug Release ◽  
Nanoporous Silica ◽  
In Vitro Tests ◽  
Stimulus Response ◽  
Ph Values ◽  
Response System ◽  
Dental Applications

AbstractA pH-sensitive stimulus-response system for controlled drug release was prepared by modifying nanoporous silica nanoparticles (NPSNPs) with poly(4-vinylpyridine) using a bismaleimide as linker. At physiological pH values, the polymer serves as gate keeper blocking the pore openings to prevent the release of cargo molecules. At acidic pH values as they can occur during a bacterial infection, the polymer strains become protonated and straighten up due to electrostatic repulsion. The pores are opened and the cargo is released. The drug chlorhexidine was loaded into the pores because of its excellent antibacterial properties and low tendency to form resistances. The release was performed in PBS and diluted hydrochloric acid, respectively. The results showed a considerably higher release in acidic media compared to neutral solvents. Reversibility of this pH-dependent release was established. In vitro tests proved good cytocompatibility of the prepared nanoparticles. Antibacterial activity tests with

Ammonia Adsorption on Nanostructured Silica Materials for Hydrogen Storage and Other Applications

2008 ◽  
Vol 8 (11) ◽  
pp. 5993-6002 ◽  
Author(s):  
R. Roque-Malherbe ◽  
F. Marquez-Linares ◽  
W. Del Valle ◽  
M. Thommes
Keyword(s):  
Hydrogen Storage ◽  
Pollution Abatement ◽  
Ammonium Hydroxide ◽  
The United States ◽  
High Specific Surface Area ◽  
Department Of Energy ◽  
Ammonia Adsorption ◽  
Adsorption Study ◽  
Silica Materials ◽  
Nanostructured Silica

Our focus in the present study is to apply high specific surface area silica nanostructured porous materials (about 2,200 m2/g, as synthesized, and 600–700 m2/g, after stabilization) to adsorb ammonia (NH3) for hydrogen storage and other chemical and pollution abatement applications. We describe here the synthesis, and characterization of these silica materials, and the adsorption study of N2 and NH3. These materials were obtained with the help of a modification of the Stöber-Fink-Bohn (SFB) method. The main change, made here to the SFB method, was the use of amines, i.e., triethylamine as catalysts instead of ammonium hydroxide. The silica materials have been characterized with the help of SEM and FTIR Spectrometry. The N2 adsorption study was carried out with the help of the Quantachrome-Autosorb-1 and the NH3 adsorption with the Quantachrome-Autosorb-1-C. The amount of hydrogen adsorbed in the form of NH3 in the studied silica samples at: P = 760 [Torr] (1.01325×105 [Pa]), was 2 [wt.%] and the amount of hydrogen stored in the form of NH3 at about: P = 7500 [Torr] (10.0×105 [Pa]), in the studied stabilized silica samples was 11 wt.%, a magnitude higher than the goal figure of 6.5 [wt.%] established by the United States of America, Department of Energy.

The oversolubility of methane gas in nano-confined water in nanoporous silica materials

2020 ◽  
Vol 293 ◽  
pp. 109793 ◽  
Author(s):  
Chih-Cheng Liu ◽  
Hao-Ju Chou ◽  
Chan-Yi Lin ◽  
Damodar Janmanchi ◽  
Po-Wen Chung ◽  
...  
Keyword(s):  
Nanoporous Silica ◽  
Confined Water ◽  
Methane Gas ◽  
Silica Materials

Formation of Nanostructured Silica Materials Templated with Nonionic Fluorinated Surfactant Followed by in Situ SAXS

Langmuir ◽  
2013 ◽  
Vol 29 (6) ◽  
pp. 2007-2023 ◽  
Author(s):  
Julien Schmitt ◽  
Marianne Impéror-Clerc ◽  
Florentin Michaux ◽  
Jean-Luc Blin ◽  
Marie-José Stébé ◽  
...  
Keyword(s):  
Fluorinated Surfactant ◽  
Silica Materials ◽  
Nanostructured Silica
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