A new heat-sensitive gel and glue combo is a major step forward for cardiovascular surgery, enabling blood vessels to be reconnected without puncturing them with a needle and thread. It represents the biggest change to vascular suturing in 100 years, according to Stanford University Medical Center researchers.
Physicians usually rely on surgery or drugs to bust blood clots in the brain that might otherwise cause a stroke, but sound waves might provide a third noninvasive choice. U.S. researchers have begun testing an Israeli ultrasound device to see whether it may prove accurate enough to break up a clot without causing collateral damage in the brain, Technology Review reports.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.