Results 11 to 20 of about 26,373 (226)

Modeling the synergistic enhancement of drug permeation by a dual-microbubble system under ultrasonic excitation [PDF]

open access: yesDrug Delivery
The high selectivity of the vascular endothelium, exemplified by the blood–brain barrier (BBB), provides critical protection to tissues against harmful substances; however, it also severely restricts the targeted delivery of therapeutic agents ...
Yingjie Li   +4 more
doaj   +2 more sources

In vitro evaluation of PEI-coated microbubble– neutrophil conjugates for ultrasound-guided cell delivery [PDF]

open access: yesFrontiers in Immunology
BackgroundImmunotherapies have advanced cancer treatment; however, their clinical efficacy remains limited for solid tumors due to challenges associated with effectively directing immune cells into the complex tumor microenvironment.
Hossein Razmi Bagtash   +11 more
doaj   +2 more sources

Translational motions and radial oscillations of a polymer-coated microbubble in the focal cross-section of focused acoustic vortex [PDF]

open access: yesUltrasonics Sonochemistry
The polymer-coated microbubble stimulated by focused acoustic vortex has great potential in enhancing the targeted drug delivery, but the dynamic behaviors of the microbubble in the focal cross-section of focused acoustic vortex requires further ...
Qingqin Zou   +6 more
doaj   +2 more sources

Determination the optimum location for microbubble drag reduction method in self propelled barge model; an experimental approach

open access: yesEnergy Reports, 2020
Nowadays, the energy efficiency is the most important aspect to pay attention. Ship resistances are one of the most important factors in order to see the energy efficiency aspect in the marine transportation.
Gunawan, Yanuar, K.T. Waskito
doaj   +1 more source

Optical Whispering-Gallery-Mode Microbubble Sensors

open access: yesMicromachines, 2022
Whispering-gallery-mode (WGM) microbubble resonators are ideal optical sensors due to their high quality factor, small mode volume, high optical energy density, and geometry/design/structure (i.e., hollow microfluidic channels).
Xuyang Zhao   +7 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

Focal areas of increased lipid concentration on the coating of microbubbles during short tone-burst ultrasound insonification. [PDF]

open access: yesPLoS ONE, 2017
Acoustic behavior of lipid-coated microbubbles has been widely studied, which has led to several numerical microbubble dynamics models that incorporate lipid coating behavior, such as buckling and rupture.
Klazina Kooiman   +9 more
doaj   +1 more source

CEUS LI-RADS: a pictorial review [PDF]

open access: yes, 2020
Contrast-enhanced ultrasound (CEUS) greatly improved the diagnostic accuracy of US in the detection and characterization of focal liver lesions (FLLs), and it is suggested and often included in many international guidelines as an important diagnostic ...
Bartolotta, Tommaso Vincenzo   +3 more
core   +1 more source

Mass transfer between microbubbles [PDF]

open access: yesJournal of Colloid and Interface Science, 2020
The role of interfacial coatings in gas transport dynamics in foam coarsening is often difficult to quantify. The complexity of foam coarsening measurements or gas transport measurements between bubbles requires assumptions about the liquid thin film thickness profile in order to explore the effects of interfacial coatings on gas transport.
Yuqi Yang   +4 more
openaire   +3 more sources

Enhanced thrombolysis by endovascular low-frequency ultrasound with bifunctional microbubbles in venous thrombosis: in vitro and in vivo study

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
There is a need to improve the efficacy and safety of endovascular techniques in venous thrombotic diseases, and microbubble enhanced sonothrombolysis is a promising approach.
Zhaojian Wang   +10 more
doaj   +1 more source

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