title: Combined surface plasmon resonance and impedance spectroscopy systems for biosensing.
abstract: Combined surface plasmon resonance and electrochemical impedance spectroscopy (SP-EIS) biosensing systems have been developed. They use a sensor chip consisting of micrometer sized interdigitated metal electrodes (IDEs) which effectively act as a surface plasmon supporting structure. In addition, the interdigitated electrodes exhibit the properties of an optical dispersive grating reflecting white light into the diffraction orders. Direct surface plasmon spectral analysis is possible by using the first order of diffraction and has been used as a novel principle for a simplified optical set-up. SP-EIS is a promising technology for a variety of conductometric and SPR mono- and multisensing applications in portable or stationary platforms.
authors: Laser Processing and Plasmonics Laboratory, École Polytechnique de Montréal, Department of Engineering Physics, C. P. 6079, succ. Centre-Ville, Montréal, QC, CanadaH3C 3A7. sergiy.patskovsky@polymtl.ca.
authors: S
authors: S
authors: Patskovsky
authors: V
authors: V
authors: Latendresse
authors: A-M
authors: AM
authors: Dallaire
authors: L
authors: L
authors: Doré-Mathieu
authors: M
authors: M
authors: Meunier
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics; D012321:DNA-Directed RNA Polymerases; D058266:Dielectric Spectroscopy / Q000295:instrumentation / Q000379:methods*; D009169:Mycobacterium tuberculosis / Q000235:genetics; D009693:Nucleic Acid Hybridization; D055620:Optical Phenomena; D020349:Surface Plasmon Resonance / Q000295:instrumentation / Q000379:methods*; D018511:Systems Integration
chemical_list: D001426:Bacterial Proteins; C505805:rpoB protein, Mycobacterium tuberculosis; D012321:DNA-Directed RNA Polymerases