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  2. Sonochemistry - Wikipedia

    en.wikipedia.org/wiki/Sonochemistry

    Because cavitation can only occur in liquids, chemical reactions are not seen in the ultrasonic irradiation of solids or solid–gas systems. For example, in chemical kinetics , it has been observed that ultrasound can greatly enhance chemical reactivity in a number of systems by as much as a million-fold; [ 15 ] effectively acting to activate ...

  3. Ultrasonic transducer - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_transducer

    A curvilinear array ultrasonic transducer for use in medical ultrasonography Inside construction of a Philips C5-2 128 element curved array ultrasound sensor. Ultrasonic transducers and ultrasonic sensors are devices that generate or sense ultrasound energy. They can be divided into three broad categories: transmitters, receivers and transceivers.

  4. Ultrasonic cavitation device - Wikipedia

    en.wikipedia.org/wiki/Ultrasonic_cavitation_device

    Ultrasonic cavitation device is a surgical device using low frequency ultrasound energy to dissect or fragment tissues with low fiber content. It is basically an ultrasound probe (acoustic vibrator) combined with an aspirator device ( suction ).

  5. Cavitation - Wikipedia

    en.wikipedia.org/wiki/Cavitation

    Ultrasonic cavitation inception will occur when the acceleration of the ultrasound source is enough to produce the needed pressure drop. This pressure drop depends on the value of the acceleration and the size of the affected volume by the pressure wave. The dimensionless number that predicts ultrasonic cavitation is the Garcia-Atance number.

  6. Ultrasound - Wikipedia

    en.wikipedia.org/wiki/Ultrasound

    During these scale-up steps, it is essential to make sure that all local exposure conditions (ultrasonic amplitude, cavitation intensity, time spent in the active cavitation zone, etc.) stay the same. If this condition is met, the quality of the final product remains at the optimized level, while the productivity is increased by a predictable ...

  7. Sonoporation - Wikipedia

    en.wikipedia.org/wiki/Sonoporation

    Pore formation following ultrasound application was first reported in 1999 in a study that observed cell membrane craters following ultrasound application at 255 kHz. [9] Later, sonoporation mediated microinjection of dextran molecules showed that membrane permeability mechanisms differ depending on the size of dextran molecules.