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Title:
DETECTION DEVICE BASED ON SURFACE PLASMON RESONANCE EFFECT
Document Type and Number:
WIPO Patent Application WO2008057000
Kind Code:
B1
Abstract:
The present invention describes a detection device based on the surface plasmon resonance effect, comprising: (1) a rotational microfluidic substrate (40) with channels (45), valves(50) and reservoirs (41,44) and at least one Detection Zone (42) wherein said Detection Zone comprises a Detection Surface (DS) built on top of a dif tractive thin electrically conductive layer,- (2) a system comprising a light emitter (20) and a light detector (30) capable of transducing the occurrence of events near the DS by exploiting the surface plasmon resonance effect in the diffractive conductive layer,- (3) a mechanism for controlling the rotation speed, duration and positioning of the rotational microfluidic substrate, in order to move a predefined liquid volume from an initial reservoir into a Detection Zone and finally into a final reservoir. The sensor described in the present invention enables the determination of the concentration of specific chemical and/or biological substances present at the DS or present in the fluid near the DS.

Inventors:
GARCIA DA FONSECA JOAO (PT)
Application Number:
PCT/PT2007/000047
Publication Date:
June 26, 2008
Filing Date:
November 08, 2007
Export Citation:
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Assignee:
BIOSURFIT SA (PT)
GARCIA DA FONSECA JOAO (PT)
International Classes:
G01N21/07; B01L3/00; G01N21/55
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