A type of laser called a VCSEL (for Vertical-Cavity Surface-Emitting Laser) is particularly good at detecting small amounts of gasses like carbon monoxide. But the laser has to be cooled to work, which limits how useful it is to small, inexpensive detectors. Now research in Applied Physics Letters has reported the first room-temperature VCSEL, paving the way to better gas detectors.
Researchers have simulated a way to get cancer drugs into cancer cells—while ignoring the rest of the body. Previous work has established that drugs encased in a nanobubble could be directed specifically towards cancer cells. Once there, though, the drugs have to get into the cell. New work in Applied Physics Letters uses computer simulations to show that a shockwave can be used to burst the... View details ⇨