Results 31 to 40 of about 9,810 (226)

Sorbents based on xerogels of zirconium, aluminum and manganese oxyhydroxides

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2016
The actual problem of water supply in the world and in Ukraine, in particular, is a high level of pollution in water resources and an insufficient level of drinking water purification.
R.V. Smotraiev   +3 more
doaj   +1 more source

Magnetic Study of CuFe2O4-SiO2 Aerogel and Xerogel Nanocomposites

open access: yesNanomaterials, 2021
CuFe2O4 is an example of ferrites whose physico-chemical properties can vary greatly at the nanoscale. Here, sol-gel techniques are used to produce CuFe2O4-SiO2 nanocomposites where copper ferrite nanocrystals are grown within a porous dielectric silica ...
Alizé V. Gaumet   +6 more
doaj   +1 more source

The Role of Cations in Resorcinol–Formaldehyde Gel Textural Characteristics

open access: yesGels, 2022
The production of resorcinol–formaldehyde xerogels has yielded insight into the gelation processes underpinning their structures. In this work, the role of the cation species from the catalyst is probed by studying the simultaneous addition of sodium ...
Stewart J. Taylor   +2 more
doaj   +1 more source

Hybrid Silica Xerogel and Titania/Silica Xerogel Dispersions Reinforcing Hydrophilicity and Antimicrobial Resistance of Leathers

open access: yesGels, 2023
Four leather substrates from different animals were treated by dispersions containing hydrophilic composite silica-hyperbranched poly(ethylene imine) xerogels. Antimicrobial activity was introduced by incorporating silver nanoparticles and /or benzalkonium chloride.
Michael Arkas   +11 more
openaire   +3 more sources

Exploring the difference in xerogels and organogels through in situ observation [PDF]

open access: yesRoyal Society Open Science, 2018
Solvent–gelator interactions play a key role in mediating organogel formation and ultimately determine the physico-chemical properties of the organogels and xerogels.
Binglian Bai   +5 more
doaj   +1 more source

Hydrophilic Antimicrobial Coatings for Medical Leathers from Silica-Dendritic Polymer-Silver Nanoparticle Composite Xerogels

open access: yesTextiles, 2022
Hybrid organic-inorganic (dendritic polymer-silica) xerogels containing silver nanoparticles (Ag Nps) were developed as antibacterial leather coatings. The preparation method is environmentally friendly and is based on two biomimetic reactions.
Michael Arkas   +13 more
doaj   +1 more source

Emulsion Gels as Precursors for Porous Silicones and All-Polymer Composites—A Proof of Concept Based on Siloxane Stabilizers

open access: yesGels, 2022
In spite of its versatility, the emulsion templating method is rather uncommon for the preparation of porous silicones. In this contribution, two siloxane-containing stabilizers, designed to be soluble in polar (water) and non-polar (toluene) solvents ...
Carmen Racles   +3 more
doaj   +1 more source

Dataset of xerogel synthesis in basic medium at different resorcinol/catalyst ratios

open access: yesData in Brief, 2018
Textural properties of carbon xerogels and their applications depend on the path of synthesis. The variables to be considered are the starting reagents, relation and the catalysis medium used.
Rafael A. Fonseca-Correa   +2 more
doaj   +1 more source

Effect of PEG on rheology and stability of nanocrystalline titania hydrosols [PDF]

open access: yes, 2009
Very stable titania hydrosols were prepared by fast hydrolysis of titanium isopropoxide in a large excess of water. XRD patterns show that these sols contain nanocrystals (5–6 nm) of anatase (70%) and brookite (30%).
Alphonse, Pierre   +2 more
core   +2 more sources

Synthesis and Study of Lidocaine Hydrochloride from Polymeric Film as a Wound Dressing

open access: yesMajallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Shahīd Ṣadūqī Yazd, 2020
Introduction: Among various carrier materials capable of drug controlled-release, silica xerogels have been found to be noteworthy for loading and sustaining drug release.
Shahrzad Zirak Hassan Kiadeh   +3 more
doaj  

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