Results 51 to 60 of about 12,393 (146)

Improvement of Detection Sensitivity of Microbubbles as Sensors to Detect Ambient Pressure

open access: yesSensors, 2018
Microbubbles are considered a promising tool for noninvasive estimation of local blood pressure. It is reported that the subharmonic scattering amplitude of microbubbles decreases by 9 to 12 dB when immersed in the media under an ambient pressure ...
Fei Li, Deyu Li, Fei Yan
doaj   +1 more source

Sonoporation Using Nanoparticle-Loaded Microbubbles Increases Cellular Uptake of Nanoparticles Compared to Co-Incubation of Nanoparticles and Microbubbles

open access: yesPharmaceutics, 2021
Therapeutic agents can benefit from encapsulation in nanoparticles, due to improved pharmacokinetics and biodistribution, protection from degradation, increased cellular uptake and sustained release.
Sofie Snipstad   +4 more
doaj   +1 more source

Adhesion of Bio-Functionalized Ultrasound Microbubbles to Endothelial Cells by Targeting to Vascular Cell Adhesion Molecule-1 Under Shear Flow [Corrigendum]

open access: yesInternational Journal of Nanomedicine, 2023
Yang H, Xiong X, Zhang L, Wu C, Liu Y. Int J Nanomedicine. 2011;6:2043–2051. An error during the preparation and figure assembly of Figure 7A on page 2049 led to the non-specific IgG group being inadvertently duplicated from the Control group. The
Yang H, Xiong X, Zhang L, Wu C, Liu Y
doaj  

Review of Bubble Applications in Microrobotics: Propulsion, Manipulation, and Assembly

open access: yesMicromachines, 2022
In recent years, microbubbles have been widely used in the field of microrobots due to their unique properties. Microbubbles can be easily produced and used as power sources or tools of microrobots, and the bubbles can even serve as microrobots ...
Yuting Zhou, Liguo Dai, Niandong Jiao
doaj   +1 more source

Analysis of the Uncertainty in Microbubble Characterization [PDF]

open access: yesUltrasound in Medicine & Biology, 2016
There is increasing interest in the use of microbubble contrast agents for quantitative imaging applications such as perfusion and blood pressure measurement. The response of a microbubble to ultrasound excitation is, however, extremely sensitive to its size, the properties of its coating and the characteristics of the sound field and surrounding ...
Harfield, C   +5 more
openaire   +4 more sources

Effects of intra-arterial microbubbles

open access: yes, 1960
By means of a partial extracorporeal bypass, incorporating a bubble counting chamber, measured quantities of oxygen and of air microbubbles, having average diameters of 100 and 76 µ, respectively, were introduced into the carotid arteries of dogs.
Sol Gelman   +5 more
core   +1 more source

Applications of Magnetic Microbubbles for Theranostics

open access: yesTheranostics, 2012
Compared with other diagnostic methods, ultrasound is proven to be a safe, simple, non-invasive and cost-effective imaging technique, but the resolution is not comparable to that of magnetic resonance imaging (MRI). Contrast-enhanced ultrasound employing
Xiaowei Cai, Fang Yang, Ning Gu
doaj  

A vortex-based hydrodynamic cavitation manufacturing platform to generate albumin microbubbles for delivery of chemotherapies to cancerous tumours

open access: yesUltrasonics Sonochemistry
A novel approach was developed to create stable protein-based microbubbles using a vortex-driven hydrodynamic cavitation device. Such microbubbles, tiny gas-filled spheres, combined with ultrasound, can enhance drug uptake leading to inhibition of ...
Promita Bhattacharjee   +4 more
doaj   +1 more source

Preliminary considerations on principles for the determination of difficult bubble parameters in situ through Megafrexel high speed photographic observation

open access: yes, 2007
An increasing number of laboratories have the facilities to take high speedphotographs of the pulsations of microbubbles to a degree not previously possible.Together with the advent of ultrasonic contrast agents which are stable over a longperiod, and ...
Leighton, T.G.
core   +1 more source

Complementary correlation between surface microbubble and droplet shapes

open access: yesAIP Advances
Previous atomic force microscopy studies have suggested that surface micro- and nanobubbles exhibit a flat shape. In this study, we directly observed surface microbubbles formed in an NH3BH3 solution using an optical microscope. No flat microbubbles were
Koji Takahara, Satoru Suzuki
doaj   +1 more source

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