Results 31 to 40 of about 12,393 (146)

A Fundamental Study on the Friction Reduction Characteristics of Microbubbles in Journal Bearings: Mechanics and Visualization

Lubricants
Improving motor efficiency by reducing frictional losses in the journal bearings used in many rotating machines is critical for advancing sustainable mechanical systems, especially automobiles.
Yuki Yoshimura, Shodai Sakabe, Yuki Kawamoto, Akihiko Azetsu, Masayuki Ochiai   +4 more
doaj   +1 more source

Polymer Mechanochemistry in Microbubbles

Advanced 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, Jilin Fan, Vu Ngoc Khiêm, Miancheng Zou, Kai‐Oliver Brenske, Ahmed Mourran, Rostislav Vinokur, Lifei Zheng, Mikhail Itskov, Robert Göstl, Andreas Herrmann   +10 more
openaire   +3 more sources

Biodistribution, kinetics, and biological fate of SPION microbubbles in the rat [PDF]

, 2013
Åsa Barrefelt,1,2,* Maryam Saghafian,2,* Raoul Kuiper,3 Fei Ye,4 Gabriella Egri,5 Moritz Klickermann,5 Torkel B Brismar,1 Peter Aspelin,1 Mamoun Muhammed,4 Lars Dähne,5 Moustapha Hassan2,6 1Department of Clinical Science, Intervention and ...
Barrefelt A, Saghafian M, Hassan M, Klickermann M, Aspelin P, Dähne L, Brismar TB, Kuiper R, Muhammed M, Ye F, Egri G, Muhammed, Mamoun,, Ye, F,, Daehne, L, Hassan, Moustapha, Klickermann, M, Saghafian, Maryam, Kuiper, Raoul, Muhammed, M, Klickermann, Moritz, Brismar, TB, Egri, Gabriella, Daehne, Lars, Saghafian, M,, Ye, Fei,, Barrefelt, A, Kuiper, R,, Barrefelt, Åsa, Aspelin, P,, Egri, G, Brismar, Torkel B., Aspelin, Peter   +31 more
core   +1 more source

Study on Liquid Turbulence Modulation by Microbubbles in Different Turbulence Layers

Advances in Mechanical Engineering, 2014
Bubbly flows exist extensively in industrial processes. To enhance efficiencies of industrial processes, it is very necessary and important to understand detailedly mechanisms of liquid turbulence modulation by bubbles.
Mingjun Pang, Jinjia Wei, Bo Yu
doaj   +1 more source

Air-Filled Microbubbles Based on Albumin Functionalized with Gold Nanocages and Zinc Phthalocyanine for Multimodal Imaging

Micromachines, 2021
Microbubbles are intravascular contrast agents clinically used in diagnostic sonography, echocardiography, and radiology imaging applications. However, up to date, the idea of creating microbubbles with multiple functionalities (e.g., multimodal imaging,
Elizaveta A. Maksimova, Roman A. Barmin, Polina G. Rudakovskaya, Olga A. Sindeeva, Ekaterina S. Prikhozhdenko, Alexey M. Yashchenok, Boris N. Khlebtsov, Alexander A. Solovev, Gaoshan Huang, Yongfeng Mei, Krishna Kanti Dey, Dmitry A. Gorin   +11 more
doaj   +1 more source

Drug transport using microbubbles

, 2020
This bachelor thesis deals with the research in field of medical usage of microbubbles, specially focused on ultrasound iniciated cavitation of microbubbles filled with drugs.
Piňos, Ondřej
core   +1 more source

Hybrid lipidic and fluorinated polymer microbubbles for blood-brain barrier opening: a comparative study with SonoVue

Ultrasonics Sonochemistry
Microbubble-mediated focused ultrasound is a promising strategy for transient and localized blood-brain barrier (BBB) permeabilization, enabling drug delivery to the brain.
Ambre Dauba, Thi Hong Van Nguyen, Thomas Ador, Claire Spitzlei, Estelle Porret, Laurène Jourdain, Erwan Selingue, Laurence Moine, Jean-Luc Gennisson, Charles Truillet, Benoit Larrat, Sébastien Mériaux, Anthony Delalande, Nicolas Tsapis, Anthony Novell   +14 more
doaj   +1 more source

First-cycle oscillation excursions of Pickering-stabilised microbubbles subjected to a high-amplitude ultrasound pulse

Current Directions in Biomedical Engineering, 2022
Pickering stabilisation is a manufacturing process involving the adsorption of colloidal particles at gas-liquid interfaces. It is used to create the shells of stable, long-lived ultrasound contrast agent microbubbles. The purpose of the present study is
Anderton Nicole, Carlson Craig S., Matsumoto Ryunosuke, Shimizu Ri-ichiro, Poortinga Albert T., Kudo Nobuki, Postema Michiel   +6 more
doaj   +1 more source

Contrast-enhanced ultrasound combined targeted microbubbles for diagnosis of highly aggressive papillary thyroid carcinoma

Frontiers in Endocrinology, 2023
BackgroundAccurate diagnosis of highly aggressive papillary thyroid cancer (PTC) may greatly help avoid overdiagnosis and overtreatment of PTC. However, there is still a lack of a convenient and accurate method.
Jiaojiao Ma, Jiaojiao Ma, Yuan Wang, Xuehua Xi, Jiajia Tang, Jiajia Tang, Linping Wang, Linping Wang, Liangkai Wang, Liangkai Wang, Di Wang, Xiaolong Liang, Bo Zhang, Bo Zhang, Bo Zhang   +14 more
doaj   +1 more source

Dependence of sonoporation efficiency on microbubble size: An in vitro monodisperse microbubble study

The Journal of the Acoustical Society of America, 2023
Sonoporation is the process where intracellular drug delivery is facilitated by ultrasound-driven microbubble oscillations. Several mechanisms have been proposed to relate microbubble dynamics to sonoporation including shear and normal stress. The present work aims to gain insight into the role of microbubble size on sonoporation by varying the ...
van Elburg, Benjamin, Deprez, Joke, van den Broek, Martin, De Smedt, Stefaan, Versluis, Michel, Lajoinie, Guillaume, Lentacker, Ine, Segers, Tim   +7 more
openaire   +4 more sources