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Journal articles
Subwavelength far-field ultrasound drug-delivery
Abstract : The theoretical diffraction-limit of resolution for ultrasound imaging has recently been bypassed in-vitro and in-vivo. However, in the context of ultrasound therapy, the precision of therapeutic beams remains bound to the half-wavelength limit. By combining acoustic vaporization of composite droplets and rapid ultrasound monitoring, we demonstrate that the ultrasound drug-delivery can be restricted to a subwavelength zone. Moreover, two release zones closer than the wavelength/4 can be distinguished both optically and through ultrafast ultrasound localization microscopy. This proof-of-concept let us envision the possibility to treat specific tissues more precisely without compromising on the penetration depth of the ultrasound wave.
Cited literature [18 references]
https://hal.archives-ouvertes.fr/hal-02481892
Contributor : Thu-Mai Nguyen <>
Submitted on : Monday, February 17, 2020 - 5:00:09 PM
Last modification on : Wednesday, December 9, 2020 - 3:15:26 PM
Long-term archiving on: : Monday, May 18, 2020 - 6:16:31 PM
Contributor : Thu-Mai Nguyen <>
Submitted on : Monday, February 17, 2020 - 5:00:09 PM
Last modification on : Wednesday, December 9, 2020 - 3:15:26 PM
Long-term archiving on: : Monday, May 18, 2020 - 6:16:31 PM
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