Some biophysical aspects of ultrasound

Peacocke, A. R.; Pritchard, N. J.

doi:10.1016/0079-6107(68)90024-2

Cited by 22 publications

(4 citation statements)

References 71 publications

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“…The waveform was of importance for survival of Petunia hybrida cell suspensions, as propagating waves reduce cell viability compared to standing wave fields of equal energy density [24]. The biophysics of ultrasound effects has been reviewed [25,26].…”

Section: The Generation Of Ultrasoundmentioning

confidence: 99%

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The Uses Of Ultrasound In Plant Tissue Culture

Gaba

Kathiravan

Amutha

et al.

Plan Tissue Culture Engineering

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Section: The Generation Of Ultrasoundmentioning

confidence: 99%

“…Different mechanisms have been proposed for the biological action of ultrasound (see reviews [25][26][27]). The major effects of ultrasound are generally believed to be through acoustic cavitation (transient or collapse cavitation).…”

Section: Mechanisms Of Action Of Ultrasoundmentioning

confidence: 99%

The Uses Of Ultrasound In Plant Tissue Culture

Gaba

Kathiravan

Amutha

et al.

Plan Tissue Culture Engineering

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“…During the past four decades many investigators have demonstrated biological effects of ultrasound and various mechanisms for the action(s) have been proposed [4,20]. The most frequently cited effects of sonication have been ascribed to sonically induced temperature elevation [10,11], cavitation leading to mechanical stress and, or, free radical formation [15,16] and or, acoustic streaming [14,16].…”

Section: Introductionmentioning

confidence: 99%

Changes in production, yield, and chemical composition of corn(Zea mays) after ultrasound treatments of the seeds

Weinberger

Anderson

Donovan

1979

Radiat Environ Biophys

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In the spring of each year (1972-1974) air-dry grains of two inbred lines of Z. mays (7275-13-1 and 106) were exposed for 17 h to a low level (25 kHz) of ultrasound and subsequently planted in the field together with untreated controls and grown to maturity. In the fall of each year the ears of each group were harvested and the number of broken stalks, the yield and weight of grains and grain parts and the alcohol-soluble amino acid complement of the grain parts were determined. Broken stalks and yields were unaffected, however the embryos from the treated groups retained more moisture than their respective controls, dry weights were also significantly increased. The alcohol-soluble amino acid composition of the embryos was markedly changed, levels of proline were severely depressed in the embryos of both lines and generally increased in the endosperms. Sonication resulted in an overall decrease of up to 40% in totalled alcohol-soluble amino acids in the grains of 7275-13-1.

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“…De nombreuses recherches ont été effectuées, entre autres sur les enzymes : lactate déshydrogénase, ribonucléase, pepsine, chymosine, chymotrypsine, trypsine, aldolase, ainsi que sur l'activité enzymatique [1,2,3,4,5]. Tous ces travaux montrent l'influence de la fréquence ultrasonore, de l'intensité, de la durée d'exposition, mais aussi l'influence de la concentration enzymatique et cene de la nature du milieu de dilution.…”

Section: Introductionunclassified