Issue 4, 2016

Impact of high-frequency ultrasound on nanocomposite microcapsules: in silico and in situ visualization

Abstract

The impact of high-frequency (1.2 MHz) ultrasound with a power density of 0.33 W cm−2 on microcapsule nanocomposite shells with embedded zinc oxide nanoparticles was investigated by exploring modeling simulations and direct visualization. For the first time the sonication effect has been monitored in situ on individual microcapsules upon exposure of their aqueous suspension to ultrasound. The stress distribution on the microcapsule shell for the impact of ultrasound with high (1.2 MHz) and low (20 kHz) frequency at two fixed intensities (0.33 and 30 W cm−2) has been modeled. As shown in silico and experimentally the nanocomposite microcapsules were destroyed more effectively by the action of high-frequency (1.2 MHz) ultrasound in comparison to the low frequency (20 kHz) one with the same power density.

Graphical abstract: Impact of high-frequency ultrasound on nanocomposite microcapsules: in silico and in situ visualization

Supplementary files

Article information

Article type
Paper
Submitted
12 Sep 2015
Accepted
26 Oct 2015
First published
28 Oct 2015

Phys. Chem. Chem. Phys., 2016,18, 2389-2397

Author version available

Impact of high-frequency ultrasound on nanocomposite microcapsules: in silico and in situ visualization

V. F. Korolovych, O. A. Grishina, O. A. Inozemtseva, A. V. Selifonov, D. N. Bratashov, S. G. Suchkov, L. A. Bulavin, O. E. Glukhova, G. B. Sukhorukov and D. A. Gorin, Phys. Chem. Chem. Phys., 2016, 18, 2389 DOI: 10.1039/C5CP05465F

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