In recent years, there has been an increasing interest in the design of biomaterials for cartilage tissue engineering. This type of materials must meet several requirements. In this study, we apply ultrasound to prepare a compatibilized blend of polyelectrolyte complexes (PEC) based on carboxymethyl cellulose (CMC) and chitosan (CHI), in order to improve stability and mechanical properties thro...

Characterisation of cavitation using electrochemical, acoustic and luminescent techniques (GR/M24615/01) T. G. Leighton and P. R. Birkin 1. Background There is an international need to understand the influence of cavitation on chemical and physical processes. While sonochemistry offers a variety of beneficial and appealing characteristics many limitations are apparent from the available literat...

Maghemite particles were synthesized by using a combined combustion method and sonochemical step. was used as carrier to prepare supported Pt Pd catalysts after deposition via The immediately ready be (metals catalytically active) for the 2,4-dinitrotoluene hydrogenation produce 2,4-toluenediamine. most active Pd/maghemite bimetallic Pd-Pt/maghemite. easily separable reaction due their magnetic...

BACKGROUND In-stent restenosis remains a pivotal problem after coronary and peripheral stenting. Sonodynamic therapy inhibits tumor growth by means of cytotoxicity after the activation of sonochemical sensitizers by ultrasound. PAD-S31 is known to be a water-soluble, chlorin-derivative sonochemical sensitizer. We assessed the efficacy of sonodynamic therapy using this sensitizer on neointimal h...

One way to focus the diffuse energy of a sound field in a liquid is by acoustically driving bubbles into nonlinear oscillation. A rapid and nearly adiabatic bubble collapse heats up the bubble interior and produces intense concentration of energy that is able to emit light (sonoluminescence) and to trigger chemical reactions (sonochemistry). Such phenomena have been extensively studied in bulk ...

NiMoO(4) nanorods have been successfully synthesized by sonochemical method process by using Ni(CH(3)COO)(2) · 4H(2)O and (NH(4))(6)Mo(7)O(24) · 4H(2)O as starting materials. Some parameters including ultrasonic power, ultrasonic irradiation time, stirring effect, solvent effect, and surfactant effect were investigated to reach optimum condition. The as synthesized nanostructures were character...

A refined hydrochemical model for single-bubble sonoluminescence (SBSL) is presented. The processes of water vapor evaporation and condensation, mass diffusion, and chemical reactions are taken into account. Numerical simulations of Xe-, Ar- and He-filled bubbles are carried out. The results show that the trapped water vapor in conjunction with its endothermic chemical reactions significantly r...