Patent ID: 7245379

Claim:
Device for analysing analytes in a liquid suspension or solution comprising: analyte handling means including an analyte input region, and an analyte channel for carrying analytes in a liquid suspension or solution through a light receiving region to an analyte output region; light supplying means for supplying light to the light receiving region to illuminate an interrogation region of the analyte channel, the light supplying means comprising a first input optical waveguide for directing light into a first interrogation region; and light guiding means for directing light emerging from the analytes in the interrogation region to optical detection means for detecting one or more properties of the analytes in the suspension or solution, the light guiding means comprising, a first output optical waveguide positioned to receive forward scattered light emerging from the first interrogation region, and a second output optical waveguide positioned to receive side scattered light emerging from the first interrogation region at an angle to the forward scattered light, at least the analyte channel, and the first and second output optical waveguides being integrated on the same first planar substrate.