The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization
Acoustic droplet vaporization (ADV) is an important process that enables the theragnostic application of acoustically-activated droplets, where the nucleation of inertial cavitation (IC) activity must be precisely controlled. This letter describes threshold pressure measurements for ADV and acousti...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Acoustical Society of America
2020
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| _version_ | 1826310080003309568 |
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| author | Yang, Y Yang, D Zhang, Q Guo, X Raymond, JL Roy, RA Zhang, D Tu, J |
| author_facet | Yang, Y Yang, D Zhang, Q Guo, X Raymond, JL Roy, RA Zhang, D Tu, J |
| author_sort | Yang, Y |
| collection | OXFORD |
| description | Acoustic droplet vaporization (ADV) is an important process that enables the theragnostic application of acoustically-activated droplets, where the nucleation of inertial cavitation (IC) activity must be precisely controlled. This letter describes threshold pressure measurements for ADV and acoustic emissions consistent with IC activity of lipid-shelled non-superheated perfluoropentane nanodroplets over a range of physiologically-relevant concentrations at 1.1-MHz. Under the frequency investigated, results show that the thresholds were relatively independent of concentration for intermediate concentrations (10^5, 10^6 and 10^7 droplets/ml), thus indicating an optimal range of droplet concentrations for conducting threshold studies. For the highest concentration, the difference between the threshold for IC and the threshold for ADV was greatly reduced, suggesting that it might prove difficult to induce ADV without concomitant IC in applications that employ higher concentrations. |
| first_indexed | 2024-03-07T07:46:52Z |
| format | Journal article |
| id | oxford-uuid:60c3c653-671a-4294-90e2-0d1bb957db86 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:46:52Z |
| publishDate | 2020 |
| publisher | Acoustical Society of America |
| record_format | dspace |
| spelling | oxford-uuid:60c3c653-671a-4294-90e2-0d1bb957db862023-06-13T11:18:55ZThe influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporizationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:60c3c653-671a-4294-90e2-0d1bb957db86EnglishSymplectic ElementsAcoustical Society of America2020Yang, YYang, DZhang, QGuo, XRaymond, JLRoy, RAZhang, DTu, JAcoustic droplet vaporization (ADV) is an important process that enables the theragnostic application of acoustically-activated droplets, where the nucleation of inertial cavitation (IC) activity must be precisely controlled. This letter describes threshold pressure measurements for ADV and acoustic emissions consistent with IC activity of lipid-shelled non-superheated perfluoropentane nanodroplets over a range of physiologically-relevant concentrations at 1.1-MHz. Under the frequency investigated, results show that the thresholds were relatively independent of concentration for intermediate concentrations (10^5, 10^6 and 10^7 droplets/ml), thus indicating an optimal range of droplet concentrations for conducting threshold studies. For the highest concentration, the difference between the threshold for IC and the threshold for ADV was greatly reduced, suggesting that it might prove difficult to induce ADV without concomitant IC in applications that employ higher concentrations. |
| spellingShingle | Yang, Y Yang, D Zhang, Q Guo, X Raymond, JL Roy, RA Zhang, D Tu, J The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title | The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title_full | The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title_fullStr | The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title_full_unstemmed | The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title_short | The influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
| title_sort | influence of droplet concentration on phase change and inertial cavitation thresholds associated with acoustic droplet vaporization |
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