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Article Dans Une Revue Japanese Journal of Applied Physics Année : 2022

On the rigidity of four hundred Pickering-stabilised microbubbles

Résumé

This study explores the rigidity of Pickering-stabilised microbubbles subjected to low-amplitude ultrasound. Such microbubbles might be suitable ultrasound contrast agents. Using an adapted Rayleigh-Plesset equation, we modelled the dynamics of microbubbles with a 7.6-N m$^{-1}$ shell stiffness under 1-MHz, 0.2-MPa sonication. Such dynamics were observed experimentally, too, using high-speed photography. The maximum expansions were agreeing with those predicted for Pickering-stabilised microbubbles. Subjecting microbubbles to multiple time-delayed pulses yielded the same result. We conclude that Pickering-stabilised microbubbles remain very stable at low acoustic amplitudes.
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hal-03516687 , version 1 (13-01-2022)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Nicole Anderton, Craig Stuart Carlson, Ryunosuke Matsumoto, Ri-Ichiro Shimizu, Albert Thijs Poortinga, et al.. On the rigidity of four hundred Pickering-stabilised microbubbles. Japanese Journal of Applied Physics, 2022, Ultrasonic Electronics, 61 (SG), pp.SG8001. ⟨10.35848/1347-4065/ac4adc⟩. ⟨hal-03516687⟩
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