Optical biosensor matrix
First Claim
Patent Images
1. A cell array plate comprising:
- a microtitre sample plate having a matrix of bores extending from a first surface of said sample plate through said sample plate and to an opposite second surface of said sample plate, the bores being arranged in rows and columns;
a base plate arrangement having first and second opposite surfaces, and extending along said second opposite surface of said sample plate, said first surface of said base plate arrangement being in intimate contact with said opposite surface of said sample plate so as to seal said bores of said matrix along said opposite second surface of said sample plate, thereby closing said bores at a plurality of distinct surface areas; and
a waveguiding film arrangement at said base plate arrangement and extending along said distinct surface areas, said base plate arrangement being transparent for light from said second surface of said base plate arrangement to said waveguiding film arrangement;
said base plate arrangement comprising at least one diffraction grating structure area adjacent each of said plurality of distinct surface areas for coupling light impinging through said second surface of said base plate arrangement into said waveguiding film arrangement along a distinct surface area, and from said waveguiding film arrangement adjacent said distinct surface area, back through said second surface of said base plate arrangement;
said base plate arrangement with said waveguiding film arrangement and said diffraction grating structure areas, substantially preventing light coupled into said waveguiding film arrangement at one of said plurality of distinct surface areas, from propagating into the waveguiding film arrangement at another one of said distinct surface areas neighboring said one of said distinct surface areas, and thereby substantially preventing cross-talk between said distinct surface areas.
1 Assignment
0 Petitions
Accused Products
Abstract
A detection cell which is used as a component of an optical biosensor comprises a transparent base plate and a sample plate on the base plate. The sample plate has a matrix of wells extending through it to each to receive a sample. The base plate includes a waveguiding film and a diffraction grating means to in couple an incident light field into the waveguiding film beneath a well to generate a diffracted light field to enable detection of a change in the effective refractive index of the waveguiding film.
349 Citations
12 Claims
-
1. A cell array plate comprising:
-
a microtitre sample plate having a matrix of bores extending from a first surface of said sample plate through said sample plate and to an opposite second surface of said sample plate, the bores being arranged in rows and columns; a base plate arrangement having first and second opposite surfaces, and extending along said second opposite surface of said sample plate, said first surface of said base plate arrangement being in intimate contact with said opposite surface of said sample plate so as to seal said bores of said matrix along said opposite second surface of said sample plate, thereby closing said bores at a plurality of distinct surface areas; and a waveguiding film arrangement at said base plate arrangement and extending along said distinct surface areas, said base plate arrangement being transparent for light from said second surface of said base plate arrangement to said waveguiding film arrangement; said base plate arrangement comprising at least one diffraction grating structure area adjacent each of said plurality of distinct surface areas for coupling light impinging through said second surface of said base plate arrangement into said waveguiding film arrangement along a distinct surface area, and from said waveguiding film arrangement adjacent said distinct surface area, back through said second surface of said base plate arrangement; said base plate arrangement with said waveguiding film arrangement and said diffraction grating structure areas, substantially preventing light coupled into said waveguiding film arrangement at one of said plurality of distinct surface areas, from propagating into the waveguiding film arrangement at another one of said distinct surface areas neighboring said one of said distinct surface areas, and thereby substantially preventing cross-talk between said distinct surface areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification