title: Optical waveguide sensor for on-line monitoring of bacteria.
abstract: A grating-coupled planar optical waveguide sensor is presented for sensing of bacteria by evanescent waves. The waveguide design results in increased depth of penetration into the sample volume, which makes it suitable for detecting micrometer-sized biological objects. We tested the sensor's performance by monitoring the adhesion of Escherichia coli K12 cells to the sensor surface.
authors.affiliation: Optics and Fluid Dynamics Department, Rise National Laboratory, DK-4000 Roskilde, Denmark.
authors.forename: Róbert
authors.initials: R
authors.lastname: Horváth
authors.forename: Henrik C
authors.initials: HC
authors.lastname: Pedersen
authors.forename: Nina
authors.initials: N
authors.lastname: Skivesen
authors.forename: Dávid
authors.initials: D
authors.lastname: Selmeczi
authors.forename: Niels B
authors.initials: NB
authors.lastname: Larsen
mesh_terms: D018407:Bacterial Physiological Phenomena; D002448:Cell Adhesion; D001330:Electronic Data Processing; D004926:Escherichia coli / Q000502:physiology; D008991:Monitoring, Physiologic; D055095:Optics and Photonics / Q000295:instrumentation*