Abstract
Fluorescence resonance energy transfer (FRET) is a physical process where the excitation energy of a donor molecule is transferred to a neighboring acceptor molecule via dipole-dipole interaction when the donor and acceptor molecules approach within a few nano meters. FRET efficiency depends on an intermolecular distance between the donor and acceptor molecules. Therefore FRET is widely used to measure distances between specific positions of biomolecules or proteins at a nano scale and clarify their dynamics.
© 2014 Japan Society of Applied Physics, Optical Society of America
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