Twisted beams of electrons have been used for the first time to determine the handedness, or “chirality”, of an ultrathin crystal. The new technique, which uses a transmission electron microscope (TEM), has been developed by physicists at the University of Antwerp in Belgium. Their method has been shown to work on samples just 20 nm thick, and the researchers believe that it could be adapted to reveal the chirality of nanoparticles or even single molecules…….
http://nanotechweb.org/cws/article/tech/60788
