Results 31 to 40 of about 39,049 (253)
Heritage Science, 2020 The white spots known as microbubbles that are formed in cellulose acetate film, significantly affects the texture of the image. However, the formation of microbubbles and their corresponding microstructure are poorly understood. In this paper, cellulose
Zhihui Jia +7 more
doaj +1 more source
Focused ultrasound-enabled brain tumor liquid biopsy [PDF]
, 2018 Although blood-based liquid biopsies have emerged as a promising non-invasive method to detect biomarkers in various cancers, limited progress has been made for brain tumors.
Chen, Hong +10 more
core +3 more sources
Reversal of aging-induced increases in aortic stiffness by targeting cytoskeletal protein-protein interfaces [PDF]
, 2018 BACKGROUND: The proximal aorta normally functions as a critical shock absorber that protects small downstream vessels from damage by pressure and flow pulsatility generated by the heart during systole.
Chiu, Joanna +10 more
core +1 more source
Subharmonic and Endoscopic Contrast Imaging of Pancreatic Masses: A Pilot Study. [PDF]
, 2017 OBJECTIVES: To use subharmonic imaging (SHI) to depict the vascularity of pancreatic masses compared to contrast-enhanced endoscopic ultrasound (EUS) and pathologic results.
Eisenbrey, John R. +10 more
core +2 more sources
Ultrasound-induced microbubble coalescence [PDF]
Ultrasound in Medicine & Biology, 2004 We studied the interaction of ultrasound contrast agent bubbles coated with a layer of lipids, driven by 0.5 MHz ultrasound. High-speed photography on the submicrosecond timescale reveals that some bubbles bounce off each other, while others show very fast coalescence during bubble expansion.
Postema, Michiel +4 more
openaire +5 more sources
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 +10 more
openaire +3 more sources
Inhibition of Trophoblast-Induced Spiral Artery Remodeling Reduces Placental Perfusion in Rat Pregnancy. [PDF]
, 2010 Rats harboring the human angiotensinogen and human renin genes develop preeclamptic features in pregnancy. The preeclamptic rats exhibit a deeper trophoblast invasion associated with a reduced resistance index by uterine Doppler.
Cartwright, JE +12 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
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 +11 more
doaj +1 more source
Tunable optofluidic microbubble lens
Optics Express, 2022 Optofluidic microlenses are one of the crucial components in many miniature lab-on-chip systems. However, many optofluidic microlenses are fabricated through complex micromachining and tuned by high-precision actuators. We propose a kind of tunable optofluidic microbubble lens that is made by the fuse-and-blow method with a fiber fusion splicer.
Xuyang Zhao +9 more
openaire +2 more sources