Gold nanoparticles with externally controlled, reversible shifts of local surface plasmon resonance bands.
We have achieved reversible tunability of local surface plasmon resonance in conjugated polymer functionalized gold nanoparticles. This property was facilitated by the preparation of 3,4-ethylenedioxythiophene (EDOT) containing polynorbornene brushes on gold nanoparticles via surface-initiated ring-opening metathesis polymerization. Reversible tuning of the surface plasmon band was achieved by electrochemically switching the EDOT polymer between its reduced and oxidized states.
Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269, USA.
Mustafa S
MS
Yavuz
Gary C
GC
Jensen
David P
DP
Penaloza
Thomas A P
TA
Seery
Samuel A
SA
Pendergraph
James F
JF
Rusling
Gregory A
GA
Sotzing
D006046:Gold / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D036103:Nanotechnology / Q000379:methods*; D020349:Surface Plasmon Resonance / Q000379:methods*
D006046:Gold