Results 11 to 20 of about 39,049 (253)

Microbubble surface modes [PDF]

IEEE Ultrasonics Symposium, 2004, 2005
We have investigated surface vibrations generated by ultrasound excitation of individual unencapsulated micron-sized bubbles. In addition, we present surface modes (n=2 and 3) observed for phospholipid-coated ultrasound contrast agents excited through excitation of radial modes at frequencies between 1 and 4 MHz.
Versluis, Michel, Palanchon, P., Goertz, D., van der Meer, S.M., Chin, C.T., Lohse, Detlef, de Jong, N.   +6 more
openaire   +3 more sources

Nonspherical ultrasound microbubbles

Proceedings 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, Sun, Tao, Palomba, Roberto, Rama, Elena, Zhang, Yongzhi, Power, Chanikarn, Moeckel, Diana, Liu, Mengjiao, Sarode, Apoorva, Weiler, Marek, Motta, Alessandro, Porte, Céline, Magnuska, Zuzanna, Said Elshafei, Asmaa, Barmin, Roman, Graham, Adam, McClelland, Arthur, Rommel, Dirk, Stickeler, Elmar, Kiessling, Fabian, Pallares, Roger M., De Laporte, Laura, Decuzzi, Paolo, McDannold, Nathan, Mitragotri, Samir, Lammers, Twan   +25 more
openaire   +2 more sources

Microbubble cavitation imaging [PDF]

IEEE 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., Shi, W. T., Powers, J. E., Everbach, E. Carr, Liu, J. J., Gao, S. J., Xie, F., Porter, T. R.   +7 more
openaire   +3 more sources

Optical microbubble resonator [PDF]

Optics 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., Dulashko, Y., Windeler, R.S.   +2 more
openaire   +2 more sources

A Simulation for Detecting Nonlinear Echoes from Microbubbles Packets

Archives 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, Nour Zaky ELSAYED, Ebtsam Ali EID   +2 more
doaj   +1 more source

Mass transfer between microbubbles [PDF]

Journal 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, Matthew D. Biviano, Jixiang Guo, Joseph D. Berry, Raymond R. Dagastine   +4 more
openaire   +3 more sources

Separation of chemically modified carbon nanotubes by surfactant free microbubble generation

AIP 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, Yu-Ting Ciou, Hong-Ren Jiang   +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

IEEE 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, Hector Alarcon, David Espindola   +2 more
doaj   +1 more source

Integration of microbubbles with biomaterials in tissue engineering for pharmaceutical purposes

Heliyon, 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, Farnoush Sadat Rezaei, Farzaneh Mahmoudi Beram, Abolfazl Barati   +3 more
doaj   +1 more source

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

Pharmaceutics, 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, Roman A. Barmin, Pavel S. Kuzmin, Elena P. Fedotkina, Alexander N. Sencha, Dmitry A. Gorin   +5 more
doaj   +1 more source