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TitleHigh-selectivity optical detection in microfluidic systems for clinical diagnostics
Author(s)Minas, Graça
Martins, Júlio S.
Correia, J. H.
Fabry-Perot filter
Issue dateAug-2000
CitationREUS, Roger de; BOUWSTRA, Siebe, ed. lit. – “Eurosensors XIV : proceedings of the european conference on solid-state transducers, 14, Copenhagen, 2000”. Lyngby : MIC, 2000. ISBN 87-89935-50-0. p. 873-876.
Abstract(s)This paper presents a microfluidic system for determining the protein concentrations in human biological fluids (e.g. urine, blood or serum) with a highly sensitive and selective optical photodetector based on a Fabry-Perot filter. The microsystem consists of two wafers: a Pyrex glass wafer containing the microlaboratory (microchannels to carry chemical reagents and sample solutions) and a silicon wafer that includes the protein detection system and readout electronics. The optical channel operates in the visible spectral range. A FWHM < 3 nm and finesse of 36 for narrow band operation is demonstrated in albumin concentration detection. Detection system compensation techniques are also presented.
TypeConference paper
AccessRestricted access (UMinho)
Appears in Collections:DEI - Artigos em atas de congressos internacionais

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