Res. Chem. Intermed., Vol. 30, No. 7-8, pp. 683 – 684 (2004) VSP 2004. Also available online - www.vsppub.com Sonochemistry, a developing scientiﬁc ﬁeld, offers a wide range of applications in chemistry, physics, medicine and food science. Sonochemical reactions are caused by ultrasound-generated ‘cavitation’ bubbles in a liquid medium. These cavitation bubbles are also referred to as ‘Hot Spots’, owing to the extreme temperature conditions generated within these bubbles on collapse. While cavitation can also cause physical effects, such as, ‘microstreaming’, microjetting, turbulence, etc., which can also enhance reaction efﬁciencies, the vast majority of chemical reactions are induced by primary radicals generated within cavitation bubbles. The articles presented in this Special Issue primarily deal with ‘Aqueous Sono- chemistry’, i.e. sonochemical reactions in aqueous medium, where the primary rad- · · icals, H and OH , are generated by the homolysis of water within the collapsing bubbles. An interesting aspect in aqueous sonochemistry is that both oxidizing and reducing radicals are generated, that can be used for many chemical reactions, rang- ing from the synthesis of nanoparticles to the synthesis of macromolecules. Organic sonochemistry has also been included to highlight the fact that sonochemical reac- tions can be carried
Research on Chemical Intermediates – Springer Journals
Published: Nov 18, 2004
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