Results 201 to 210 of about 799,991 (253)
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Journal of Sol-Gel Science and Technology, 1997
Sol-gel derived films can be deposited on metals to improve their resistance to oxidation and corrosion or to modify their surface properties. However, practical applications are limited by problems intrinsic to sol-gel processing or specific of coating/metal systems.
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Sol-gel derived films can be deposited on metals to improve their resistance to oxidation and corrosion or to modify their surface properties. However, practical applications are limited by problems intrinsic to sol-gel processing or specific of coating/metal systems.
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Sol-gel Chemistry in Medicinal Science
Current Medicinal Chemistry, 2006The sol-gel process is an inorganic polymerization process taking place in mild conditions, allowing the association of mineral phases with organic or biological systems. The possibility to immobilize drugs, enzymes, antibodies and even whole cells without loss of their biological activity led to the development of diagnostic tools, drug delivery ...
Boissière, Michel +2 more
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Critical dynamics at the sol–gel transition
Physica A: Statistical Mechanics and its Applications, 2002Abstract In order to study the viscoelastic properties at the gelation transition we have introduced a percolation dynamic model. Using percolation and bond-fluctuation dynamics it is suited to study the critical behaviour of the viscoelastic properties and shows complex relaxation functions.
Del Gado E +2 more
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Sol‐Gel Chemistry for Carbon Dots
The Chemical Record, 2018AbstractCarbon dots are an emerging class of carbon‐based nanostructures produced by low‐cost raw materials which exhibit a widely‐tunable photoluminescence and a high quantum yield. The potential of these nanomaterials as a substitute of semiconductor quantum dots in optoelectronics and biomedicine is very high, however they need a customized ...
Malfatti, Luca, Innocenzi, Plinio
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The Induction of Chirality in Sol–Gel Materials
Accounts of Chemical Research, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sharon, Marx, David, Avnir
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Modeling the sol-gel transition
Computing in Science & Engineering, 2003Of particular interest is the sol-gel transition, in which a viscous fluid (the sol) transforms into an elastic disordered solid (the gel) by creating in the liquid phase a macroscopic structure capable of bearing stresses. This article first presents the theoretical approaches to the gelation transition, reviews scaling predictions and numerical ...
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Journal of Sol-Gel Science and Technology, 1997
The sintering of films differs from that of bulk gels in several ways. The initial state of a film is generally denser and less crosslinked than a bulk gel made from the same sol, and these factors enhance the densification rate of the film. The substrate constrains the shrinkage of the film, leading to high stresses that retard densification and can ...
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The sintering of films differs from that of bulk gels in several ways. The initial state of a film is generally denser and less crosslinked than a bulk gel made from the same sol, and these factors enhance the densification rate of the film. The substrate constrains the shrinkage of the film, leading to high stresses that retard densification and can ...
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Sol—Gel processing in Bad Honnef
Angewandte Chemie, 1989Conference Reports: Ralph Setton reports on his visit to an international symposium on graphite intercalation compounds, Hermann Schmalzried on the Annual Meeting of the German physical chemists which this year concentrated on solid state chemistry and physics, and Hans Reuter on a meeting on the sol–gel processing of ceramics.
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Sol-Gel Technology as Reflected in Journal of Sol-Gel Science and Technology
Journal of Sol-Gel Science and Technology, 2003Journal of Sol-Gel Science and Technology started as unique journal devoted to sol-gel science and technology in 1993. First, papers so far published in the Journal were intoduced. It was shown that the titles of invited papers and special issues show the broadening of the sol-gel area.
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Journal of Non-Crystalline Solids, 1992
Sol-gel chemistry involves nucleophilic reactions. The chemical reactivity of metal alkoxides toward hydrolysis, condensation and complexation mainly depends on the electronegativity of the metal atom, its coordination number and the steric hindrance of alkoxide groups. Silicon alkoxides are poorly reactive. Hydrolysis and condensation rates have to be
J. Livage, C. Sanchez
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Sol-gel chemistry involves nucleophilic reactions. The chemical reactivity of metal alkoxides toward hydrolysis, condensation and complexation mainly depends on the electronegativity of the metal atom, its coordination number and the steric hindrance of alkoxide groups. Silicon alkoxides are poorly reactive. Hydrolysis and condensation rates have to be
J. Livage, C. Sanchez
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