This article provides step-by-step instructions for making fully-corrected accurate FRET measurements on individual, freely diffusing biomolecules using the open-source, inexpensive smfBox, from switch on, through alignment and focusing, to data collection and analysis.
Abdelhamid, M. A. S., Rhind-Tutt, A. V., Ambrose, B., Craggs, T. D. Making Precise and Accurate Single-Molecule FRET Measurements using the Open-Source smfBox. J. Vis. Exp. (173), e62378, doi:10.3791/62378 (2021).