Results 31 to 40 of about 42,123 (276)

A Simulation for Detecting Nonlinear Echoes from Microbubbles Packets

open access: yesArchives of Acoustics, 2014
This work presents a simulation of the response of packets of microbubbles in an ultrasonic pulse-echo scan line. Rayleigh-Plesset equation has been used to predict the echo from numerically obtained radial dynamics of microbubbles. Varying the number of
Mohamed Galal Sayed ALI   +2 more
doaj   +1 more source

Nonspherical ultrasound microbubbles

open access: yesProceedings of the National Academy of Sciences, 2023
Surface tension provides microbubbles (MB) with a perfect spherical shape. Here, we demonstrate that MB can be engineered to be nonspherical, endowing them with unique features for biomedical applications. Anisotropic MB were generated via one-dimensionally stretching spherical poly(butyl cyanoacrylate) MB above their glass transition temperature ...
Dasgupta, Anshuman   +25 more
openaire   +2 more sources

Characterization of Direct Localization Algorithms for Ultrasound Super-Resolution Imaging in a Multibubble Environment: A Numerical and Experimental Study

open access: yesIEEE Access, 2022
Localization plays a significant role in the production of ultrasound localization microscopy images. For instance, detecting more microbubbles reduces the time of acquisition, while localizing them more accurately improves the resolution of the images ...
Aline Xavier   +2 more
doaj   +1 more source

Microbubble cavitation imaging [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2013
Ultrasound cavitation of microbubble contrast agents has a potential for therapeutic applications such as sonothrombolysis (STL) in acute ischemic stroke. For safety, efficacy, and reproducibility of treatment, it is critical to evaluate the cavitation state (moderate oscillations, stable cavitation, and inertial cavitation) and activity level in and ...
Vignon, F.   +7 more
openaire   +3 more sources

Acoustic trapping of microbubbles in complex environments and controlled payload release

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance Remote positioning and activation of drug-loaded microparticles in vivo are a central pursuit of nanomedicine. Optical, magnetic, and acoustic fields have been used to position and sort microparticles in vitro, but the translation in vivo ...
Diego Baresch, V. Garbin
semanticscholar   +1 more source

Separation of chemically modified carbon nanotubes by surfactant free microbubble generation

open access: yesAIP Advances, 2020
Bubble separation is a widely used and effective method for separating solids from liquids. In this study, we propose a method to generate roughly ∼104 microbubbles/μl in an ethanol–water solution (surfactant-free) by subjecting the container of the ...
Hsin-Chieh Lee   +2 more
doaj   +1 more source

Integration of microbubbles with biomaterials in tissue engineering for pharmaceutical purposes

open access: yesHeliyon, 2020
Tissue engineering with the aid of biomaterials is a novel and promising knowledge aiming at improving human life expectancy. Besides, microbubbles are increasingly employed in biomedical applications due to their capability as a reservoir of therapeutic
Javad Esmaeili   +3 more
doaj   +1 more source

The use of microbubbles to target drug delivery

open access: yesCardiovascular Ultrasound, 2004
Ultrasound-mediated microbubbles destruction has been proposed as an innovative method for noninvasive delivering of drugs and genes to different tissues.
Porter Richard   +2 more
doaj   +1 more source

Tumor Delivery of Ultrasound Contrast Agents Using Shiga Toxin B Subunit

open access: yesMolecular Imaging, 2011
The present study demonstrates the targeting of ultrasound contrast agents to human xenograft tumors by exploiting the overexpression of the glycolipid Gb3 in neovasculature.
Olivier Couture   +6 more
doaj   +1 more source

Enhancing Structural Stability of Oil-Shell Microbubbles via Incorporation of a Gold Nanoparticle Protective Shell for Theranostic Applications

open access: yesColloids and Interfaces, 2023
Phospholipid-stabilized microbubbles are utilized as contrast agents in medical ultrasound imaging, and researchers are currently investigating their potential as theranostic agents.
Marzieh Ataei   +4 more
doaj   +1 more source

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