In this article we describe how we obtain FRET traces from individual DNA molecules immobilized to a surface using an automated scanning confocal microscope.
Di Fiori, N., Meller, A. Automated System for Single Molecule Fluorescence Measurements of Surface-immobilized Biomolecules. J. Vis. Exp. (33), e1542, doi:10.3791/1542 (2009).