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Advanced techniques to reveal the underlying physics of ultrasonic processing. [PDF]
Ultrason SonochemEskin DG +3 more
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Ultrasonic cavitation in microspace
Chemical Communications, 2004Ultrasound was irradiated to a micro-1D and -2D space having a characteristic length of 200 microm, and the presence of cavitation was confirmed from video images, and the generation of OH radicals, which was quantitatively evaluated with fluorometry.
Yasuo, Iida +4 more
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Ultrasonic Cavitation at Solid Surfaces
Advanced Materials, 2011AbstractIn spite of the great potential of applying high‐intensity ultrasound, which enables high‐temperature and high‐pressure chemistry with a reactor near room temperature and ambient pressure, sonochemistry at solid surfaces is at a weak stage of understanding with regards to the development of new materials and composite nanostructures.
Shchukin, D. +3 more
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Ultrasonic cavitation to prepare ECM hydrogels
Acta Biomaterialia, 2020Hydrogels composed of extracellular matrix (ECM) have been used as a substrate for 3D organoid culture, and in numerous preclinical and clinical applications to facilitate repair and reconstruction of a variety of tissues. However, these ECM hydrogel materials are fabricated using lengthy methods that have focused on enzymatic digestion of the ECM with
George S. Hussey +9 more
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Radiation-Induced Ultrasonic Cavitation
The Journal of the Acoustical Society of America, 1966Exposure of a liquid to high-energy neutrons yields a reproducible threshold if the liquid is clean enough. The cavitation rate rises sharply with stress, and at a fixed stress is proportional to neutron flux. The events are random. No appreciable induction or decay times are observed, even in water. For “Freon TF” (F2 Cl C C Cl2 F), the threshold is 2.
Martin Greenspan, Carl E. Tschiegg
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Cavitation produced by Ultrasonics
Proceedings of the Physical Society. Section B, 1950The problem of cavitation produced by ultrasonic vibration is examined theoretically. Equations are developed which describe the motion of a gas-filled cavitation bubble in a liquid medium subjected to alternating pressure; the case of an empty cavity is also considered Information is obtained concerning the distribution of fluid pressures and ...
B E Noltingk, E A Neppiras
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Ultrasonic cavitation for disruption of microalgae
Bioresource Technology, 2015Challenges with mid-stream fractionation steps in proposed microalgae biofuel pathways arise from the typically dilute cell density in growth media, micron scale cell sizes, and often durable cell walls. For microalgae to be a sustainable source of biofuels and co-products, efficient fractionation by some method will be necessary.
Justin M, Greenly, Jefferson W, Tester
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Selective Ultrasonic Cavitation on Patterned Hydrophobic Surfaces
Angewandte Chemie International Edition, 2010Ultrasound can create cavitation bubbles that upon collapse cause extreme temperatures and pressures. Sonochemistry therefore carries much promise as an environmentally friendly method to carry out chemical processes at ultrahigh temperatures (ca. 5000 K), and pressures (ca. 1000 atm), but with a reactor at near-ambient conditions.
Belova, V. +3 more
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Chemical Dosimetry of Ultrasonic Cavitation
1981 Ultrasonics Symposium, 1981meters to evaluate the efficacy of various solvents in producing cavitational sonochemistry. Aqueous and alcoholic solvent systems-are easily standardized using the oxidation of I to 13 by spectrophotometry. The more common addition of CC14 in order to increase rates of 1) production dramatically reduces the reproducibility of this system, which in our
K.S. Suslick +2 more
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