Controlled fluorescence resonance energy transfer between ZnO nanoparticles and fluorophores in layer-by-layer assemblies.
We controlled the fluorescence resonance energy transfer (FRET) between ZnO nanoparticles and rhodamine B (RB) within multilayered thin films prepared by the layer-by-layer (LbL) assembling method. Positively charged ZnO nanoparticles and RB-labeled poly(allyamine hydrochloride) (RB-PAH) were accurately incorporated into LbL assemblies of polyelectrolytes. The distance between ZnO nanoparticles and RB-PAH was adjusted by varying the number of layers of pure polyelectrolytes, leading to the controlled FRET from ZnO nanoparticles to RB-PAH.
Department of Chemistry, NANO Systems Institute, Seoul National University, Seoul 151-747, Korea.
Sang-Mi
SM
Jeon
Seong Il
SI
Yoo
Ki-Se
KS
Kim
Dong Ha
DH
Kim
Byeong-Hyeok
BH
Sohn