Los Angeles Times: Ultrasound can enhance the effects of radiation in the treatment of cancer, according to a study by Gregory Czarnota, of the University of Toronto’s Sunnybrook Research Institute, and colleagues. Traditional radiation treatments, which require fairly high doses, can affect the blood vessels feeding a tumorâmdash;by causing their cells to self-destruct. To achieve a similar effect, Czarnota and coworkers sent microbubbles of gas encapsulated in a shell of a lipid protein through the circulatory system of mice and then burst the bubbles with pulses of ultrasound. They found that by combining radiation with the microbubbles–ultrasound technique, they could significantly reduce the radiation dosage required to treat a tumor.
The finding that the Saturnian moon may host layers of icy slush instead of a global ocean could change how planetary scientists think about other icy moons as well.
Modeling the shapes of tree branches, neurons, and blood vessels is a thorny problem, but researchers have just discovered that much of the math has already been done.
January 29, 2026 12:52 PM
Get PT in your inbox
PT The Week in Physics
A collection of PT's content from the previous week delivered every Monday.
One email per week
PT New Issue Alert
Be notified about the new issue with links to highlights and the full TOC.
One email per month
PT Webinars & White Papers
The latest webinars, white papers and other informational resources.