Förster resonance energy transfer framework: E = 1/(1 + (r/R_0)^6) (sixth-power dipole-dipole distance dependence)

Förster resonance energy transfer efficiency sixth-power distance dependence: E = 1/(1 + (r/R_0)^6), where R_0 is the Förster radius at which E = 1/2 (typically 2-8 nm for FRET-viable fluorophore pairs). The six-power law arises from the…