Specimen holding carrier and fluorescence detector using same

摘要

A biosensor substrate includes a base substrate to which an excitation light beam is entered, a track formed on the base substrate, and a plurality of wells disposed on the base substrate and accommodating a specimen. A region on which the wells are disposed is sectioned into a plurality of zones in a radial direction, and the wells are arranged on the zones in a circumferential direction. The biosensor substrate is driven at a constant angular velocity while a zone is scanned with the excitation light beam. Velocities set to the zones are varied between the zones, and a zone on the outer radial side has a smaller angular velocity.

主权项

1. A fluorescence detector that applies a light beam to a specimen holding carrier holding a fluorescently-labeled specimen and detects fluorescence emitted from the specimen by applying the light beam, wherein:
the specimen holding carrier includes:
a substrate;a track formed to turn around a center of the substrate; anda plurality of specimen accommodating portions disposed on a top face side of the substrate and accommodating a specimen, wherein:a region on which the specimen accommodating portions are disposed is sectioned into a plurality of zones in a radial direction; and the specimen accommodating portions are arranged in a circumferential direction of the substrate in the zones; the fluorescence detector includes:
a rotation drive unit configured to rotate the specimen holding carrier;a projection unit configured to cause the light beam to follow the track;a detection unit configured to detect fluorescence emitted from the specimen; anda rotation control unit configured to control the rotation drive unit; and the rotation control unit rotates the specimen holding carrier at a same angular velocity in a period in which the light beam is applied to one zone, and changes the angular velocity to the zone so that the angular velocity to the zone becomes smaller as the position at which the zone is disposed goes toward an outer radial side of the substrate.