Results 21 to 30 of about 18,600 (239)

High-speed optical observations of asymmetric pulsations of microbubbles released from tablet matrix

open access: yesCurrent Directions in Biomedical Engineering, 2023
Microbubbles with a negligible shell are of utmost importance in the study of harmonic ultrasound contrast agents. The purpose of this study was to collect and quantify experimental pulsation footage of gas microbubbles released from tablet matrix under ...
Anderton Nicole   +7 more
doaj   +1 more source

Polymer Mechanochemistry in Microbubbles

open access: yesAdvanced Materials, 2023
AbstractPolymer mechanochemistry is a promising technology to convert mechanical energy into chemical functionality by breaking covalent and supramolecular bonds site‐selectively. Yet, the mechanochemical reaction rates of covalent bonds in typically used ultrasonication setups lead to reasonable conversions only after comparably long sonication times.
Mingjun Xuan   +10 more
openaire   +3 more sources

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

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

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

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

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

Microbubbles Stabilized by Protein Shell: From Pioneering Ultrasound Contrast Agents to Advanced Theranostic Systems

open access: yesPharmaceutics, 2022
Ultrasound is a widely-used imaging modality in clinics as a low-cost, non-invasive, non-radiative procedure allowing therapists faster decision-making.
Polina G. Rudakovskaya   +5 more
doaj   +1 more source

Optical microbubble resonator [PDF]

open access: yesOptics Letters, 2010
We develop a method for fabricating very small silica microbubbles having a micrometer-order wall thickness and demonstrate the first optical microbubble resonator. Our method is based on blowing a microbubble using stable radiative CO(2) laser heating rather than unstable convective heating in a flame or furnace.
Sumetsky, M.   +2 more
openaire   +2 more sources

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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