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Showing 1 to 15 of 15 for “"high-intensity ultrasound"”.
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Design of a high intensity ultrasound dispersion cell
… on the factors causing mechanical damage in a high power ultrasound environment, and to give recommendations for the production of an ultrasonic dispersion cell with a removable treatment vessel. The primary mechanism for causing this dispersion was cavitation: a void of air or vapour in a …
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Applications of High-Intensity Ultrasound for Synthesis and Modification of Advanced Materials
… pinning. Similar study focused on such promising high-Tc superconductors as YBa 2Ca3CuO7-delta and Bi2Sr 2CaCu2O8+x. (Abstract shortened by UMI.)."
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High Intensity Ultrasound Processing of AlNi (50 wt.% Ni) Particles for Electrocatalytic Water Splitting
… on the processing of metal alloy particles with ultrasound of high intensity (HIUS) for potential application in electrocatalytic water splitting process for hydrogen generation. During ultrasonic treatment of metal particles the changes in bulk (crystallite size, microstrain) and surface …
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The effects of high-intensity ultrasound of rice bran wax oleogel preparation and its effects on flaky pastry application
… affecting the global food market, and there is a high demand for novel alternatives for functional “solid” lipids to use in food products, while providing a nutritional benefit. The overall goal of this research was to develop oleogels to serve as a replacement for trans-fat or high saturated fat …
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Evaluation of high intensity ultrasound on plant based lipid blends, containing health-promoting lipids, as an alternative to hydrogenation for plastic fat development
… fats and oils, blended and treated with high intensity ultrasound would produce a trans fat free fat with plastic characteristics. Selected lipids may also provide health benefits and product shelf-life extension due to the presence of endogenous antioxidants and other potentially …
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The sonochemical synthesis of inorganic and biological materials
… is a basic scientific endeavor. The use of high intensity ultrasound to initiate chemical reactions, as opposed to traditional energy sources such as heat and light, has opened new avenues of research. The mechanism of sonochemistry involves acoustic cavitation: the formation, growth, and …
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The chemical effects of ultrasound
The use of high intensity ultrasound to enhance the reactivity of heterogeneous, liquid-solid reactions has become a routine synthetic technique. Typically, ultrasound reduces reaction temperatures and increases rates of reaction while improving product yields. In spite of this, our understanding …
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Bubbles and crystals: time-resolved sonoluminescence, sonocrystallization, and sonofragmentation
The application of high-intensity ultrasound on liquids induces acoustic cavitation: the formation, growth, and implosive collapse of bubbles. In a standing wave a single bubble can be trapped. The conditions formed inside such a bubble during collapse are extreme, reaching temperatures on the …
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Sonochemically-produced proteinaceous microspheres
… Previously, Suslick and coworkers have used high-intensity ultrasound to generate nonaqueous-filled serum albumin microspheres. The mechanism involved the oxidation of cysteine residues by sonochemically generated superoxide to form disulfide bonds.
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Desenvolvimento e otimização do processo de extração de pectina a partir do resíduo de maracujá da caatinga (Passiflora cincinnata Mast.) utilizando tecnologia do ultrassom de alta intensidade
… vegetable peels from the food chain, to extract high-value bioactive molecules such as pectins, structural anionic heteropolysaccharides that have potential for application in numerous areas. Conventional or traditional pectin extraction methods have numerous limitations, such as: long processing …
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Production of stable bcs class ii drug suspensions by melt emulsification and subsequent incorporation into polymer strip films
… use of both nonionic surfactant Pluronic F68 and high-intensity ultrasound during cooling produces fenofibrate and ibuprofen suspensions with enhanced short-term physical stability. The optimized fenofibrate suspension is blended with hydroxypropyl methylcellulose film solution and cast into a …
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Development and Evaluation of Paclitaxel-Loaded Liposomal Formulations for Targeted Drug Delivery to Breast Cancer
… of these liposomes in the peritoneal cavity was higher suggesting that they were cleared rapidly by the reticuloendothelial system. The antitumor efficacy of paclitaxel-loaded tumor vasculature targeted LCL was compared with paclitaxel-loaded tumor cell targeted LCL. The antitumor efficacy was …
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Ultrasonic synthesis of materials for energy conversion devices
… synthetic routes. In this sense, applying ultrasound to the materials’ synthesis has attracted much attention. Sonochemistry is found to be a very effective way of producing nano-sized materials with unique properties, while ultrasonic spray pyrolysis shows promising results for the mass …
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Ultrasound-assisted synthesis and processing of carbon materials
… interest in many applications because of their high surface areas and other physicochemical properties, and much effort has been directed towards developing new methods for controlling the porosity of carbons. Ultrasonic spray pyrolysis (USP) is an aerosol method suitable for large-scale, …
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Strategies to influence temperature stability of dark chocolate in tropical regions
… it is viewed as a good cocoa butter replacer. High Intensity Ultrasound (HIU) application to dark chocolate formulation has been demonstrated to influence crystallization by promoting primary and secondary nucleation through the mechanisms of cavitation and acoustic streaming, creating the …