Physicians and researchers rely on biomedical imaging to examine the structure and function of living tissue. This enables disease diagnostics and experiments that reveal the mechanisms behind pathologies and ways to treat ...
Bio & Medicine
Sep 26, 2023
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13
Injecting drugs into the bloodstream can often harm healthy tissues as well. Drug delivery systems (DDSs) are an innovative solution designed to target specific cells and minimize such side effects. One strategy for drug ...
Bio & Medicine
Sep 21, 2023
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42
Scientists from Skoltech, MIPT, Prokhorov General Physics Institute of RAS, and a number of other research centers have shown microbubbles made of a protein called albumin to be effective vehicles for the delivery of photodynamic ...
Biochemistry
Nov 10, 2022
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11
Hydrodynamic cavitation is a major phase change phenomena that can occur with a sudden decrease in the local static pressure within a fluid. The emergence of microelectromechanical systems (MEMS) and high-speed microfluidic ...
New research has shown how microbubbles carrying powerful cancer drugs can be guided to the site of a tumor using antibodies.
Bio & Medicine
Dec 8, 2020
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162
Tiny bubbles can solve large problems. Microbubbles—around 1-50 micrometers in diameter—have widespread applications. They're used for drug delivery, membrane cleaning, biofilm control, and water treatment. They've been ...
Nanophysics
Oct 9, 2020
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160
Microbubbles are used every day as contrast agents in medical sonography, and are the subject of intense research for the delivery of therapeutic agents. There are a number of options available to manipulate these microbubbles, ...
Optics & Photonics
Jun 22, 2020
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5
The lack of a clinically viable method to track and direct cancer drugs to tumors is a big problem for targeted therapeutics.
General Physics
Nov 12, 2019
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34
A team of researchers has produced a record-shattering underwater sound with an intensity that eclipses that of a rocket launch. The intensity was equivalent to directing the electrical power of an entire city onto a single ...
General Physics
May 17, 2019
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267
Severe oxygen deficiency eventually leads to cardiac arrest. If the blood's oxygen content cannot be rapidly re-established, the patient may die within minutes. In the journal Angewandte Chemie, American scientists have introduced ...
Materials Science
Jan 23, 2018
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27
Microbubbles are bubbles smaller than one millimetre in diameter, but larger than one micrometre. They are used in medical diagnostics as a contrast agent for ultrasound imaging. The gas-filled, e.g. air or perfluorocarbon, microbubbles oscillate and vibrate when a sonic energy field is applied and may reflect ultrasound waves. This distinguishes the microbubbles from surrounding tissues. In practice, because gas bubbles in liquid lack stability and would therefore quickly dissolve, microbubbles must be encapsulated with a solid shell. The shell is made from either a lipid or a protein such as Optison microbubbles which consist of perfluoropropane gas encapsulated by a serum albumin shell.
Microbubbles may also be used for drug delivery and water/waste water treatment purposes. .
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