Surface energy transfer

Surface energy transfer (SET) is a dipole-surface energy transfer process involving a metallic surface and a molecular dipole.

[1] The SET rate follows the inverse of the fourth power of the distance[2] where The energy transfer efficiency also follows a similar form Due to the fourth power dependence SET can cover a distance more than 15 nm, which is almost twice the efficiency of FRET.

[3] Theoretically predicted in 1978 by Chance et al. it was proved experimentally in 2000s by different workers.

[4] The efficiency of SET as nanoruler has been used in live cells.

[5] Gold nano particles are frequently used in these studies as the nanoparticle surface.