Drug–matrix interactions in nanostructured materials containing fluoxetine using sol-gel titanium oxide as a matrix

2011 ◽  
Vol 26 (22) ◽  
pp. 2871-2876
Author(s):  
Mayra González ◽  
Jacques Rieumont ◽  
Francois Figueras ◽  
Patricia Quintana
Keyword(s):  
Titanium Oxide ◽  
Nanostructured Materials ◽  
Sol Gel ◽  
Matrix Interactions ◽  
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Abstract

Synthesis and Intermolecularly Mediated Assembly of Organic Pigment in Hybrid Coating Films

1998 ◽  
Vol 519 ◽  
Author(s):  
Y. Yan ◽  
Z. Duan ◽  
D.-G. Chen ◽  
S. Ray Chaudhuri
Keyword(s):  
Sol Gel ◽  
Hybrid Coating ◽  
Hypsochromic Shift ◽  
Hybrid Films ◽  
Coating Films ◽  
Organic Pigment ◽  
Inorganic Hybrid ◽  
Matrix Interactions ◽  
Sol Gel Process

AbstractThe insoluble, strongly hydrogen bonded organic pigment of 3,6-bis-(4-chlorphenyl)-l,4- diketopyrrolo [3,4-c] pyrrole was transiently blocked by adding carbamate groups, and consequently incorporated into organic-inorganic hybrid matrices by a sol-gel process. The homo- (pigment-pigment) and hetero-intermolecular (pigment-matrix) interactions were found to control both the assembly and dispersion of pigment molecules in the hybrid coating films. A weaker interaction between matrices and pigment molecules results in aggregation of the carbamate pigment in the methyl-silicate films. A stronger interaction forms a homogenous dispersion and coloration of the phenyl-silicate films. The as-prepared methyl- and phenylsilicate films doped with the organic pigment were distinguished by a morphology change and a blue (hypsochromic) shift in absorption from 550 to 460 nm. Thermal treatment can remove the carbamate groups and in-situ form the organic pigment in the hybrid films.

Preparation of Titanium Oxide Nanotube by Hydrothermal Process

2007 ◽  
Vol 124-126 ◽  
pp. 1165-1168 ◽  
Author(s):  
M. Qamar ◽  
Cho Rong Yoon ◽  
Hyo Jin Oh ◽  
Anna Czoska ◽  
K. Park ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Titanium Oxide ◽  
Sol Gel ◽  
Hydrothermal Process ◽  
Hollow Fibers ◽  
Systematic Analysis ◽  
Transmission Electron ◽  
Tio2 Sol ◽  
Naoh Solution

The TiO2 sol was prepared hydrothermally in an autoclave from aqueous TiOCl2 solutions as starting precursor. Hollow fibers were obtained when sol-gel derived TiO2 sol was treated chemically with NaOH solution and subsequently heated in autoclave under various conditions. A systematic analysis of the influence of different NaOH concentrations on the formation of nanotubes has been carried out using XRD and SEM. The phase structure of the synthesized material was determined by transmission electron microscopy and found that these materials are, infact, hollow fibers widely known as nanotubes. From the TEM images, the outer and inner diameters of the tubes were measured ca. 8 and about 4 nm, respectively, with several hundred nanometers in length.

Structural Modifications and Associated Properties of Lanthanum Oxide Doped Sol−Gel Nanosized Titanium Oxide

2002 ◽  
Vol 14 (7) ◽  
pp. 2876-2881 ◽  
Author(s):  
C. P. Sibu ◽  
S. Rajesh Kumar ◽  
P. Mukundan ◽  
K. G. K. Warrier
Keyword(s):  
Titanium Oxide ◽  
Lanthanum Oxide ◽  
Sol Gel ◽  
Structural Modifications

Effects of Thermal Annealing on Formation of Micro Porous Titanium Oxide by the Sol?Gel Method

2006 ◽  
Vol 89 (11) ◽  
pp. 3536-3540 ◽  
Author(s):  
Hiroshi Koyama ◽  
Masayuki Fujimoto ◽  
Tomoya Ohno ◽  
Hisao Suzuki ◽  
Junzo Tanaka
Keyword(s):  
Titanium Oxide ◽  
Thermal Annealing ◽  
Sol Gel ◽  
Porous Titanium ◽  
Gel Method ◽  
Sol Gel Method ◽  
Porous Titanium Oxide

Facile preparation of macro-mesoporous zirconium titanate monoliths via a sol–gel reaction accompanied by phase separation

2019 ◽  
Vol 34 (24) ◽  
pp. 4066-4075
Author(s):  
Mingliang Sun ◽  
Tianbo Zhao ◽  
Zhaofei Ma ◽  
Zunfeng Li
Keyword(s):  
Phase Separation ◽  
Sol Gel ◽  
Zirconium Titanate ◽  
Facile Preparation ◽  
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Abstract

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