Photonic Crystal Surface Waves for Optical Biosensors
- 12 May 2007
- journal article
- editorial material
- Published by American Chemical Society (ACS) in Analytical Chemistry
- Vol. 79 (12), 4729-4735
- https://doi.org/10.1021/ac070275y
Abstract
We present a new optical biosensor technique based on registration of dual optical s-polarized modes on a photonic crystal surface. The simultaneous registration of two optical surface waves with different evanescent depths from the same surface spot permits the segregation of the volume and the surface contributions from an analyte, while the absence of metal damping permits an increase in the propagation length of the optical surface waves and the sensitivity of the biosensor. Our technique was tested with the binding of biotin molecules to a streptavidin monolayer that has been detected with signal/noise ratio of ∼15 at 1-s signal accumulation time. The detection limit is ∼20 fg of the analyte on the probed spot of the surface.Keywords
This publication has 14 references indexed in Scilit:
- Long-Range Propagation of Plasmon Polaritons in a Thin Metal Film on a One-Dimensional Photonic Crystal SurfacePhysical Review Letters, 2006
- Advanced biosensing using simultaneous excitation of short and long range surface plasmonsMeasurement Science and Technology, 2006
- Double-Wavelength Technique for Surface Plasmon Resonance Measurements: Basic Concept and Applications for Single Sensors and Two-Dimensional Sensor ArraysAnalytical Chemistry, 2005
- Biosensor based on surface plasmon interferometry independent on variations of liquid’s refraction indexSensors and Actuators B: Chemical, 2004
- The metrics of surface adsorbed small molecules on the Young's fringe dual-slab waveguide interferometerJournal of Physics D: Applied Physics, 2003
- The commercial development of planar optical biosensorsSensors and Actuators B: Chemical, 1995
- Particle deposition on ideal collectors from dilute flowing suspensions: Mathematical formulation, numerical solution, and simulationsSeparations Technology, 1994
- Photonic band-gap structuresJournal of the Optical Society of America B, 1993
- Surface plasmons on gratingsPublished by Springer Science and Business Media LLC ,1988
- Electromagnetic propagation in periodic stratified media II Birefringence, phase matching, and x-ray lasers *Journal of the Optical Society of America, 1977