Single Biomolecules under Investigation

URL

http://www.laboratory-journal.com/news/scientific-news/single-biomolecules-under-investigation

Description

Researchers attach a commercial atomic force microscope to a single molecule fluorescence microscope. The tip of the atomic force microscope is positioned over a focused laser beam, creating a standing wave pattern. A molecule that has been treated to emit light is placed within the standing wave. As the tip of the atomic force microscope moves up and down, the fluorescence emitted by the molecule fluctuates in a way that corresponds to its distance from the surface.