The University of British Columbia

Robin Fredrick Turner

Douglas G Kilburn

Michael W Blades

Hans Georg Schulze

Lloyd Shane Greek

Michael R Phelps

A fiber-optic probe is formed by a pair of optical fibers one of which delivers light to a target zone and the other collects light from a field of view in the target zone. One of these fibers is provided with a window that opens substantially perpendicular to the longitudinal axis of the fiber and with a transverse surface oriented at an angle to the longitudinal axis of the fiber to reflect light through the window or from the window longitudinally of the axis of this fiber. Two fibers are physically interconnected to position the window on one side of and immediately adjacent to the target zone and the axial end of other fiber to deliver or receive light from another side of the target zone preferably substantially perpendicular to the one side.

Light directing and collecting fiber optic probe

A regenerable biosensor probe adapted for positioning in a bioreactor comprises a selectively permeable interface membrane, a porous protein-receiving matrix adjacent to the interface membrane, an indicating electrode, an inlet conduit through which fresh protein conjugate may flow to the protein-receiving matrix, and an outlet conduit through which spent protein conjugate may be removed from the protein-receiving matrix. A selectively permeable interface membrane, which may be used in a biosensor system to separate biochemical, optical or other processes from an analyte matrix comprises a supporting mesh, a perfluorosulfonic acid polymer impregnated substrate and a homogenous film of perfluorosulfonic acid polymer. A method of preparing this interface membrane comprises fixing a substrate on to a supporting mesh to form a substrate membrane, casting a perfluorosulfonic and polymer on the substrate membrane and curing the product to so formed.

Growing community of inventors

Vancouver, Canada

Robin Fredrick Turner