Immunoassay device enclosing matrixes of antibody spots for cell

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter

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436532, 436807, 436809, 435298, 422 58, G01N 33543, G01N 148, C12M 122

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active

048290106

ABSTRACT:
An immunoassay device comprising a support which has a substantially planar surface 14 on which is located an array of small, closely-spaced, discrete, antibody coated areas (spots) 17. A cover 16 is spaced from the support surface 14 and is positioned over the array of antibody coated spots 17. The cover is attached to the support surface to provide an enclosed chamber 30. In the cover there is at least one aperture communicating with the interior of the chamber 30 for introducing a liquid sample into the chamber. In addition, there is at least one additional aperture 34 in the cover, which also communicates with the interior of the chamber to allow air to escape upon introduction of the sample into the chamber. When a cell sample is introduced into the chamber it immediately fills the chamber and cells will settle uniformly over the matrix. The antibody-coated spots function as tiny immunoadsorbents for cells bearing antigens recognized by the antibody. The device can be used to determine the proportion of cells in a sample cell population.

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