Not exact matches
Just 1 / 100th the size of a human hair,
microbubbles sneak
into very small canals within the complex clot and their oscillation from ultrasound causes a breakup of the clot from the inside as well.
«The combination of
microbubbles chipping away outside and inside the clot is like poking holes in the clot and turning it
into Swiss cheese allowing blood to reach the heart muscle,» says Porter.
An ultrasound - stimulated
microbubble burrows through a fibrin clot (green) allowing penetration of the surrounding fluid
into the clot (yellow).
Ultrasound is then used to vibrate the
microbubbles, providing the energy to direct the drug particles
into a targeted area.
When
microbubbles are injected
into an artery, they follow the flow of the blood.
One hose at the bottom of the tub pulls water
into the machine, where it is charged and bubbled, and another hose delivers
microbubbles to the pet.
(Brennen, 1995) In gas - free water, the pressure due to interfacial curvature rapidly drives micron - sized bubbles
into solution, but in air - saturated water (22 mg l - 1 at STP), but in the presence of film - forming impurities, either present naturally or intentionally added,
microbubbles may last for tens to hundreds of seconds.