Flow channel device and sensor unit for assay in utilizing...

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Structured visual or optical indicator – per se

Reexamination Certificate

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Details

C422S105000, C436S180000, C356S445000

Reexamination Certificate

active

07901643

ABSTRACT:
A sensor unit for use in a surface plasmon resonance (SPR) assay includes a flow channel device, which causes a sample fluid of a sample to flow on a sensing surface lying on a prism. The flow channel device includes a rigid device body part having an opposing surface positioned opposite to the sensing surface. A flow recess is formed in the opposing surface, closed by the prism to constitute a flow channel, for covering the sensing surface. A sealant portion is overlaid on an edge portion of the opposing surface and the flow recess in the device body part. The sealant portion tightens closing between the device body part and the prism. Also, the sealant portion projects over the opposing surface of the device body part in a state before contacting the prism. In addition, the sealant portion is formed from material having a small non-specific adsorption.

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