Results 41 to 50 of about 232,067 (190)

Two Simple Approaches to Sol-Gel Transition [PDF]

, 2000
We represent a theory of polymer gelation as an analogue of liquid-glass transition in which elastic fields of stress and strain shear components appear spontaneously as a consequence of the cross-linking of macromolecules. This circumstance is explained
Alexander I. Olemskoi, Bar'yakhtar, Deam, Dobson, Dobson, Dus̆ek, Edwards, Flory, Flory, Flory, Goldbart, Haken, Havranek, Ivan Krakovský, Landau, Olemskoi, Panyukov, Stockmayer   +17 more
core   +2 more sources

Real-World Adverse Events Associated with Encapsulated Benzoyl Peroxide/Tretinoin, 3%/0.1%, and Encapsulated Benzoyl Peroxide, 5%

Dermatology and Therapy
Encapsulated benzoyl peroxide, 5%, for rosacea and a combined formulation of encapsulated benzoyl peroxide/tretinoin, 3%/0.1%, for acne vulgaris, utilize microencapsulation, a process by which active pharmaceutical agents are enclosed in inert, permeable
Amy Poteate, Ofra Levy-Hacham, J. P. York   +2 more
doaj   +1 more source

Application of novel sol–gel composites on magnesium alloy

Journal of Magnesium and Alloys, 2019
Application of defect-free, adherent, and corrosion protective sol–gel film on the magnesium alloys is generally difficult. In this study, two novel sol–gel/conversion coating composites were successfully deposited on AM60B magnesium alloy in order to ...
S. Nezamdoust, D. Seifzadeh, Z. Rajabalizadeh   +2 more
doaj   +1 more source

Fabrication of Cr2O3 Nanoparticles Using Okra Plant Extract for Antimicrobial Activity

Journal of Kufa-Physics, 2022
Cr2O3 NPs were synthesized using Okra extract with two methods; the simple chemical method and sol-gel method. XRD analysis showed that the crystal size of Cr2O3 in a simple chemical method was (16.15) nm and with sol-gel method were 16.6 nm, 16.14 nm ...
Saja Q.Ali, Wisam J. Aziz, Raad S. Sabry
doaj   +1 more source

A novel hybrid material with calcium and strontium release capability [PDF]

, 2012
The preparation of PDMS–TEOS–CaO hybrid materials by sol–gel techniques has been widely described in previous works. Calcium nitrate is the most common source of calcium used in these preparations.
António G.B. Castro, Babonneau, Bohner, Bonnelye, Chen, Ellis, Erol, Fernanda M.A. Margaça, Fernandez, Hunault, Isabel M. Miranda Salvado, Iwamoto, J. Carlos Almeida, M. Helena Vaz Fernandes, Marie, Ohtsuki, Ortega, Ortolani, Pan, Prokopowicz, Prokopowicz, Rubio, Tellez, Yabuta, Yoshino   +24 more
core   +2 more sources

Single- and Multilayer Build-Up of an Antibacterial Temperature- and UV-Curing Sol–Gel System with Atmospheric Pressure Plasma

Gels, 2023
The versatility of sol–gel systems makes them ideal for functional coatings in industry. However, existing coatings are either too thin or take too long to cure.
Simon Chwatal, Sabine Pölzl, Clemens Kittinger, Jürgen Markus Lackner, Anna Maria Coclite, Wolfgang Waldhauser   +5 more
doaj   +1 more source

Novel sol–gel preparation of (PO)–(CaO)–(NaO)–(TiO) bioresorbable glasses (X = 0.05, 0.1, and 0.15) [PDF]

, 2014
Quaternary phosphate-based glasses in the PO–CaO–NaO–TiO system with a fixed PO and CaO content of 40 and 25 mol% respectively have been successfully synthesised via sol–gel method and bulk, transparent samples were obtained.
De Leeuw, NH, Foroutan, F, Kim, H-W, Knowles, JC, Martin, RA, Owens, GJ, Palmer, G   +6 more
core  

Phase behaviors of agarose gel

AIP Advances, 2013
We present evidence for the existence of phase separation in the gel state of agarose having the mixture of water and methanol as the gel solvent. Firstly, the sol-gel transition line and the cloud point line are determined independently as a function of
Takaharu Morita, Takayuki Narita, Sada-atsu Mukai, Miho Yanagisawa, Masayuki Tokita   +4 more
doaj   +1 more source

Enhancing the Corrosion Protection of AA2024-T3 Alloy by Surface Treatments Based on Piperazine-Modified Hybrid Sol–Gel Films

Metals, 2020
The aim of this study was to develop new chrome-free surface pretreatments for AA2024-T3 aluminum alloy. These pretreatments were based on hybrid organic–inorganic sol–gel thin films prepared from mixtures of γ-methacryloxypropyltrimethoxysilane (MAPTMS)
Diógenes J. Carbonell, Rodrigo Montoya, Victoria J. Gelling, Juan Carlos Galván, Antonia Jiménez-Morales   +4 more
doaj   +1 more source

Nanoparticulate sol-gel pretreatments as barrier coatings and adhesion promoters for metallic corrosion protection [PDF]

, 2008
The Spanish University Carlos III de Madrid has developed sol-gel coatings for the corrosion protection of alloys. Sol-gel coatings represent a physical barrier between the metallic substrate and the aggressive environment of exposition and act as ...
Jiménez Morales, Antonia
core   +1 more source