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Super-fine Sound Beam Could One Day Be an Invisible Scalpel

Published: December 20, 2012.
Released by University of Michigan  

ANN ARBOR—A carbon-nanotube-coated lens that converts light to sound can focus high-pressure sound waves to finer points than ever before. The University of Michigan engineering researchers who developed the new therapeutic ultrasound approach say it could lead to an invisible knife for noninvasive surgery.


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More news from University of Michigan


biology
Cancer Drugs May Hold Key to Treating Down Syndrome And Other Brain Disorders
ANN ARBOR--A class of FDA-approved cancer drugs may be able to prevent problems with brain cell development associated with disorders including Down syndrome and Fragile X syndrome, researchers at the University of Michigan Life Sciences Institute have found.

chemistry
'Supercool' Material Glows When You Write on It
ANN ARBOR--A new material developed at the University of Michigan stays liquid more than 200 degrees Fahrenheit below its expected freezing point, but a light touch can cause it to form yellow crystals that glow under ultraviolet light. Even living cells sitting on a film of the supercooled liquid produce crystal footprints, which means that it's about a million times more sensitive than other known molecules that change color in response to pressure.

nature
A Climate Signal in the Global Distribution of Copper Deposits
ANN ARBOR--Climate helps drive the erosion process that exposes economically valuable copper deposits and shapes the pattern of their global distribution, according to a new study from researchers at the University of Idaho and the University of Michigan.

medicine
Naturally Occurring Amino Acid Could Improve Oral Health
ANN ARBOR -- Arginine, a common amino acid found naturally in foods, breaks down dental plaque, which could help millions of people avoid cavities and gum disease, researchers at the University of Michigan and Newcastle University have discovered.

nature
Pollen And Clouds: April Flowers Bring May Showers?
ANN ARBOR--The main job of pollen is to help seed the next generation of trees and plants, but a new study from the University of Michigan and Texas A&M shows that the grains might also seed clouds. The unexpected findings demonstrate that these wind-carried capsules of genetic material might have an effect on the planet's climate. And they highlight a new link between plants and the atmosphere.

medicine
U-Michigan Scientists Observe Deadly Dance Between Nerves And Cancer Cells
ANN ARBOR -- In certain types of cancer, nerves and cancer cells enter an often lethal and intricate waltz where cancer cells and nerves move toward one another and eventually engage in such a way that the cancer cells enter the nerves.

medicine
Reducing School Bus Pollution Improves Children's Health
ANN ARBOR--Use of clean fuels and updated pollution control measures in the school buses 25 million children ride every day could result in 14 million fewer absences from school a year, based on a study by the University of Michigan and the University of Washington. In research believed to be the first to measure the individual impact on children of the federal mandate to reduce diesel emissions, researchers found improved health and less absenteeism, especially among asthmatic children.

medicine
U-M Researchers Find New Gene Involved in Blood-forming Stem Cells
ANN ARBOR--Research led by the University of Michigan Life Sciences Institute has identified a gene critical to controlling the body's ability to create blood cells and immune cells from blood-forming stem cells--known as hematopoietic stem cells.

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