Polarimetric surface plasmon resonance imaging biosensor.
We report the realization of a polarimetric surface plasmon resonance imaging system capable of dynamically resolving a change in the optical anisotropy of biochemical films. Anisotropies as small as 10(-3) refractive index unit on nanometer-thick samples can be resolved. As an example, we present here the dynamical anisotropy obtained by the electrical patterning of a film consisting of a self-assembled monolayer deposited on gold, covered with a phospholipid hemimembrane.
Duval
Aurélien
A
Laboratoire Charles Fabry de l'Institut d'Optique, CNRS, Université Paris Sud, Campus Polytechnique RD 128,91127 Palaiseau CEDEX, France. aurelien.duval@institutoptique.fr
Laisné
Aude
A
Pompon
Denis
D
Held
Sylvain
S
Bellemain
Alain
A
Moreau
Julien
J
Canva
Michael
M
D016880:Anisotropy; D004566:Electrodes; D006046:Gold / Q000737:chemistry; D010743:Phospholipids / Q000737:chemistry; D020349:Surface Plasmon Resonance / Q000295:instrumentation / Q000379:methods*
D010743:Phospholipids; D006046:Gold