Using newly developed voltage-sensitive nanoparticles, researchers have found that the previously unknown electric fields inside of cells are as strong, or stronger, as those produced in lightning bolts. Previously, it has only been possible to measure electric fields across cell membranes, not within the main bulk of cells, so scientists didn't even know cells had an internal electric field.
This discovery is a surprising twist for cell researchers. Scientists
don't know what causes these incredibly strong fields or why they' are
there. But now using new nanotools, such as voltage-sensitive dyes,
they can start to measure them at least. Researchers believe they may
be able to learn more about disease states, such as cancer, by studying
these minute, but powerful electric fields.