scholarly journals Adsorption Configurations of 2-Chlorophenols on Colloidal Silica

2020 ◽  
Author(s):  
Lakmal Jayarathna ◽  
Nelum Karunathilake ◽  
Athula Bandara ◽  
Rohan Weerasooriya
Keyword(s):  
Colloidal Silica

UV Curable Organic-Inorganic Hybrid Materials

2000 ◽  
Vol 628 ◽  
Author(s):  
Guang-Way Jang ◽  
Ren-Jye Wu ◽  
Yuung-Ching Sheen ◽  
Ya-Hui Lin ◽  
Chi-Jung Chang
Keyword(s):  
Hybrid Materials ◽  
Colloidal Silica ◽  
Sol Gel ◽  
Solution Ph ◽  
Uv Curable ◽  
Inorganic Hybrid ◽  
Degradation Temperature ◽  
Sol Gel Process ◽  
The Stability ◽  
Thermal Degradation Temperature

This work successfully prepared an UV curable organic-inorganic hybrid material consisting of organic modified colloidal silica. Applications of UV curable organic-inorganic hybrid materials include abrasion resistant coatings, photo-patternable thin films and waveguides. Colloidal silica containing reactive functional groups were also prepared by reacting organic silane and tetraethyl orthosilicate (TEOS) using sol-gel process. In addition, the efficiency of grafting organic moiety onto silica nanoparticles was investigated by applying TGA and FTIR techniques. Experimental results indicated a strong interdependence between surface modification efficiency and solution pH. Acrylate-SiO2 hybrid formation could result in a shifting of thermal degradation temperature of organic component from about 200°C to near 400°C. In addition, the stability of organic modified colloidal silica in UV curable formula and the physical properties of resulting coatings were discussed. Furthermore, the morphology of organic modified colloidal silica was investigated by performing TEM and SEM studies‥

Development of Cationic Colloidal Silica Treated with Amino-functional Silane for Ink Jet Paper

2006 ◽  
Vol 60 (4) ◽  
pp. 537-544 ◽  
Author(s):  
Mitsuru Ishii ◽  
Toshio Kakui ◽  
Masao Ishiguro ◽  
Sayaka Sato
Keyword(s):  
Colloidal Silica ◽  
Ink Jet

Adsorption of organics on thermally treated solids obtained from colloidal silica

1987 ◽  
Vol 52 (3) ◽  
pp. 572-581 ◽  
Author(s):  
Miroslav M. Kopečni ◽  
Slobodan K. Milonjic ◽  
Wladyslaw Rudzinski ◽  
Jacek Jagiello
Keyword(s):  
Gas Chromatography ◽  
Thermodynamic Parameters ◽  
Adsorption Isotherms ◽  
Colloidal Silica ◽  
Adsorption Properties ◽  
Thermal Pretreatment ◽  
Lateral Interactions ◽  
Adsorbed Molecules ◽  
Temperature Range ◽  
Thermally Treated

Adsorption isotherms of three adsorbates on the solid beads obtained from colloidal silica were determined by means of gas chromatography at low surface coverages, when lateral interactions between the adsorbed molecules are negligible. The influence of thermal pretreatment on the adsorption properties of the solids was investigated in the temperature range from 343 to 423 K, while the solids were heated between 523 K and 1 223 K. The thermodynamic parameters of adsorption have been determined and used to discuss the adsorbate-adsorbent interactions.

Alumina‐based filters made via binder jet 3D printing of alumina powder, colloidal silica infiltration, and sintering

2021 ◽  
Author(s):  
Corson L. Cramer ◽  
Beth Armstrong ◽  
Artem A. Trofimov ◽  
Peter Wang ◽  
Derek Siddel ◽  
...  
Keyword(s):  
3D Printing ◽  
Colloidal Silica ◽  
Alumina Powder

Preparation of body armour material of Kevlar fabric treated with colloidal silica nanocomposite

2008 ◽  
Vol 37 (5-6) ◽  
pp. 223-226 ◽  
Author(s):  
X. Li ◽  
H. L. Cao ◽  
S. Gao ◽  
F. Y. Pan ◽  
L. Q. Weng ◽  
...  
Keyword(s):  
Colloidal Silica ◽  
Body Armour ◽  
Silica Nanocomposite

Formation of 11 Å tobermorite from mixtures of lime and colloidal silica with quartz

1978 ◽  
Vol 8 (2) ◽  
pp. 135-138 ◽  
Author(s):  
C.F. Chan ◽  
T. Mitsuda
Keyword(s):  
Colloidal Silica

Semi-purification procedures of prions from a prion-infected brain using sucrose has no influence on the nonenzymatic glycation of the disease-associated prion isoform

2016 ◽  
Vol 397 (2) ◽  
pp. 125-133 ◽  
Author(s):  
Yeong-Gon Choi ◽  
Jae-Il Kim ◽  
Eun-Kyoung Choi ◽  
Richard I. Carp ◽  
Yong-Sun Kim
Keyword(s):  
Colloidal Silica ◽  
Protein S ◽  
Core Region ◽  
Advanced Glycation ◽  
Nonenzymatic Glycation ◽  
Pellet Fraction ◽  
Sucrose Cushion ◽  
Advanced Glycation End Product ◽  
Modified Polymer

Abstract Previous studies have shown that the Nε-carboxymethyl group is linked to not only one or more N-terminal Lys residues but also to one or more Lys residues of the protease-resistant core region of the pathogenic prion isoform (PrPSc) in prion-infected brains. Using an anti-advanced glycation end product (AGE) antibody, we detected nonenzymatically glycated PrPSc (AGE-PrPSc) in prion-infected brains following concentration by a series of ultracentrifugation steps with a sucrose cushion. In the present study, the levels of in vitro nonenzymatic glycation of PrPSc using sucrose were investigated to determine whether sucrose cushion can artificially and nonenzymatically induce in vitro glycation during ultracentrifugation. The first insoluble pellet fraction following the first ultracentrifugation (PU1st) collected from 263K scrapie-infected brains was incubated with sucrose, glucose or colloidal silica coated with polyvinylpyrrolidone (percoll). None of the compounds in vitro resulted in AGE-PrPSc. Nonetheless, glucose and percoll produced AGEs in vitro from other proteins within PU1st of the infected brains. This reaction could lead to the AGE-modified polymer(s) of nonenzymatic glycation-prone protein(s). This study showed that PrPSc is not nonenzymatically glycated in vitro with sucrose, glucose or percoll and that AGE-modified PrPSc can be isolated and enriched from prion-infected brains.

Isopynic separation of ram spermatids in colloidal silica gradients

1975 ◽  
Vol 92 (2) ◽  
pp. 499-505 ◽  
Author(s):  
M LOIR ◽  
M LANNEAU
Keyword(s):  
Colloidal Silica
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