Results 11 to 20 of about 2,729 (185)
Nanoparticle-releasing xerogel films prepared by a one-step method
Results in Materials, 2023 Aggregation remains a challenge in the development of solid dosage forms of nanoparticles. Herein, we investigated whether xerogel films can allow sustained release of nanoparticles encapsulating curcumin (as a model drug) while preventing their ...
Akihiro Matsumoto +2 more
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Low temperature superparamagnetic nanocomposites obtained by Fe(acac)3-SiO2-PVA hybrid xerogel thermolysis [PDF]
Processing and Application of Ceramics, 2016 Fe(acac)3/silica/PVA hybrid xerogel nanocomposite was obtained by one pot acid catalysed sol-gel synthesis using the homogeneous mixture of iron(III) acetylacetonate (Fe(acac)3), tetraethylorthosilicate (TEOS), and polyvinyl alcohol (PVA).
Catalin Ianasi +7 more
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Journal of Saudi Chemical Society, 2020 A new bi-functionalized xerogel is fabricated and then was identified by 29Si CP MAS NMR, SEM, FTIR, and nitrogen adsorption–desorption approaches. As-prepared xerogel efficiency for simultaneous uptake of methylene blue (MB) and Pb2+ ions from aqueous ...
Yasser Hannachi, Afifa Hafidh
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Química Nova, 2002 The xerogel p-anisidinepropylsilica was obtained. This solid presents some residual paraffin and also a small fraction of high organofunctionalized material that was leached in polar solvent.
Leonardo Franken +4 more
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Green Chemistry Letters and Reviews, 2023 Here, we report the efficient one-pot removal of heavy metal ions and pharmaceuticals using xerogel, activated carbon and gravel. The simplest xerogel from tetramethyl orthosilicate showed ∼ twice the adsorption capacity of activated carbon derived from ...
Ibrahim Karume +5 more
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Carbon Letters, 2021 Carbon xerogels (CXs) with three-dimensional (3D) structure, unusual surface, physical, electrical and mechanical properties and their electrically conductive polymer polypyrrole (PPy) composites were synthesized as electrode materials for supercapacitors.
Meryem Samancı +2 more
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Nanoporous Xerogel for Adsorption of Pb2+ and Cd2+ [PDF]
Journal of Nanostructures, 2015 Classical xerogels are robust, inexpensive and nontoxic materials with low-ordered nanoporous structures. In water streams where the pH is higher than the Point of Zero Charge, the surface of classical xerogels such as tetraethoxy orthosilan (TEOS ...
F. B. Sarand +3 more
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Eclética Química, 2018 The hybrid 3-(1,4-phenylenediamine)propylsilica xerogel was obtained starting from two different organic precursor quantity (5 and 8 mmol) to 22 mmol of TEOS, in the synthesis.
J. C. P. Vaghetti +4 more
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Leaching of Atrazine in Commercial and Xerogel Formulations in Oxisol Using Bioassay and Chromatographic Methods [PDF]
Planta Daninha, 2015 Mobility of atrazine in soil has contributed to the detection of levels above the legal limit in surface water and groundwater in Europe and the United States.
E.D. Marchesan +4 more
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Porosity in Polysilsesquioxane Xerogels [PDF]
MRS Proceedings, 1999 ABSTRACTPolymerization of organotrialkoxysilanes is a convenient method for introducing organic functionality into hybrid organic-inorganic materials. However, not much is known about the effects of the organic substituent on the porosity of the resulting xerogels.
Loy, Douglas A. +3 more
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