from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The modification of the structure of a compound by light, especially when accompanied by a change in function
Sorry, no etymologies found.
Called 'photoswitching', the method according to scientists in Einstein's Gruss Lipper Biophotonics Center, can provide detail on how cancer cells invade surrounding tissue and reach blood vessels, which is the first step of the potentially deadly stage of cancer known as metastasis. "
"Mapping the fate of tumor cells in different regions of a tumor was not possible before the development of photoswitching technology," explains John S. Condeelis, P.. D., co-chair and professor of anatomy and structural biology, co-director of the Gruss Lipper Biophotonics Center, and the Judith and Burton P. Resnick Chair in Translational Research.
Here we report a chemical tag that allows proteins to be labeled with an organic fluorophore with high photon flux and fast photoswitching performance in live cells.
This reversible photoswitching enables super-resolution imaging in living cells.
Those light-sensitive materials, however, do not have the reversibility that exists in photoswitching.