نتایج جستجو برای: microbubble

تعداد نتایج: 1643  

Journal: :Trends in Sciences 2022

Microbubble aeration has been recognized as a tool to improve dissolved oxygen and fish culture performance in limited water aquaculture. This research aims investigate the effect of microbubble on increasing oxygen, performance, stress resistance red tilapia. The study used 3 treatments aerations namely microbubble, blower, without with replicates each. Red tilapia weighing 115.27±3.93 g were ...

2015
Stephan Wagner Christiane Rode Ralf Wojke Bernard Canaud

BACKGROUND The infusion of microbubbles as a side effect of haemodialysis was repeatedly demonstrated in recent publications, but the knowledge on the source of microbubbles and on microbubble formation is scarce. METHODS Microbubbles in the range of 10-500 µm were measured by a non-invasive bubble counter based on a pulsed ultrasonic Doppler system in a non-interventional study of a single c...

Journal: :The Journal of the Acoustical Society of America 2010
Daniel A King Michael J Malloy Alayna C Roberts Alexander Haak Christian C Yoder William D O'Brien

This work presents experimental responses of single ultrasound contrast agents to short, large amplitude pulses, characterized using double passive cavitation detection. In this technique, two matched, focused receive transducers were aligned orthogonally to capture the acoustic response of a microbubble from within the overlapping confocal region. The microbubbles were categorized according to...

2016
Alexandria L. Pivovaroff Régis Burlett Bruno Lavigne Hervé Cochard Louis S. Santiago Sylvain Delzon

Plant resistance to xylem cavitation is a major drought adaptation trait and is essential to characterizing vulnerability to climate change. Cavitation resistance can be determined with vulnerability curves. In the past decade, new techniques have increased the ease and speed at which vulnerability curves are produced. However, these new techniques are also subject to new artefacts, especially ...

Journal: :Journal of controlled release : official journal of the Controlled Release Society 2004
Amol M Takalkar Alexander L Klibanov Joshua J Rychak Jonathan R Lindner Klaus Ley

This study was performed to assess the binding kinetics of a targeted microbubble contrast agent exposed to shear stress. An ultrasound contrast targeted to P-selectin was designed by conjugating monoclonal antibodies against murine P-selectin (RB40.34) to the lipid monolayer shell of the microbubble using poly(ethylene glycol)-biotin-streptavidin. The attachment and detachment of targeted micr...

Journal: :Sustainability 2022

The consumption of fresh produce is steadily increasing and chlorine washing the most commonly used method disinfecting produce. However, possesses a potential risk. Hence, this study ozone microbubble (OMB) water to disinfect Salmonella Enteritidis, S. Typhimurium, Staphylococcus aureus, Escherichia coli on tomatoes. After injecting into generator, OMB was fulfilled in 10 L tank for or 20 min....

2009
A. M. Chow K. W. Chan E. X. Wu

INTRODUCTION Gas-filled microbubbles have been recently employed in therapeutic applications due to their unique cavitation and sonoporation properties. Local microbubble cavitation by spatially focused ultrasound can be applied in achieving site-specific release of incorporated drugs or genes inside microbubbles. Microbubbles can potentially be visualized by MRI and serve as an intravascular s...

Journal: :Circulation research 2007
Tomosaburo Takahashi Hiroaki Matsubara

Although recent procedural advances in revascularization such as percutaneous coronary intervention and coronary artery bypass grafting improve quality of life and prognosis of the patients with ischemic diseases, these is still a subset of patients who are refractory to these conventional therapies and have poor prognosis. Therapeutic angiogenesis might offer a novel approach to these patients...

2011
Nilanjana Bose Dario Carugo Tapas Kumar Maiti Xunli Zhang Suman Chakraborty

In the present study we have investigated the sonoporation dynamics in a single cell using a novel microfluidic-based approach. Our methodology has successfully addressed the biophysical mechanisms underlying US-induced cell membrane sonoporation by performing in situ measurement of localised cell membrane deformation, and simultaneous quantification of both intracellular calcium concentration ...

Journal: :Molecules 2013
Keng-Shiang Huang Yung-Sheng Lin Wan-Ru Chang Yi-Ling Wang Chih-Hui Yang

Microbubble particles have been extensively utilized as temporal templates for various biomedical applications. This study proposes a facile strategy to obtain microbubble-containing alginate particles (i.e., microbubbles inside alginate gel particles, called alginate microbubbles). The chemical reaction of sodium bicarbonate and hydrogen peroxide to produce gaseous carbon dioxide and oxygen wa...

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