Microbubble dynamics and jetting near tissue-phantom biointerfaces.

Autor:	Mur J; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia.; jaka.mur@fs.uni-lj.si., Agrež V; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia., Petelin J; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia., Petkovšek R; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva 6, SI-1000 Ljubljana, Slovenia.; rok.petkovsek@fs.uni-lj.si.
Jazyk:	angličtina
Zdroj:	Biomedical optics express [Biomed Opt Express] 2022 Jan 31; Vol. 13 (2), pp. 1061-1069. Date of Electronic Publication: 2022 Jan 31 (Print Publication: 2022).
DOI:	10.1364/BOE.449814
Abstrakt:	Precise excitation of cavitation is a promising mechanism for microsurgery procedures and targeted drug delivery enhancement. The underlying phenomenon of interest, jetting behaviour of oscillating cavitation bubbles, occurs due to near-surface interactions between the boundary, liquid, and bubble. Within this study we measured boundary effects on the cavitation bubble dynamics and morphology, with an emphasis on observation and measurement of jetting behaviour near tissue-phantom biointerfaces. An important mechanism of boundary poration has been observed using time-resolved optical microscopy and explained for different tissue-phantom surface densities and Young's modulus. Below a critical distance to the boundary, around γ = 1.0, the resulting jets penetrated the tissue-phantom, resulting in highly localized few micrometer diameter jets. Competing Interests: The authors declare no conflicts of interest. (© 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.)
Databáze:	MEDLINE
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