Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals
Reexamination Certificate
2006-01-24
2006-01-24
Do, Pensee T (Department: 1641)
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
C436S501000, C435S004000, C435S007100, C435S007400, C435S007920, C435S007930, C435S007940, C435S007950, C422S082050, C422S051000, C422S051000, C422S068100, C422S082010, C250S339120, C250S339060, C250S458100, C250S297000
Reexamination Certificate
active
06989277
ABSTRACT:
This invention relates to a method for immunoassays based on infrared reflection absorption spectroscopy that utilizes proteins such as antigen and antibody that have specific absorptions in infrared absorption spectrum under 1550 cm−1. A chip is made from infrared reflective substrates such as a gold or silver plate, whereon the antibodies or antigens are immobilized by the specific bonding action between metal surfaces of the chip and proteins, and the protein signals are then detected by infrared reflection-absorption and infrared microscopy. Since infrared radiation is capable of interacting with any organic molecules, there is no need to label the samples with fluorescent reagents or nucleic irradiation reagent. This invention thus provides a label-free process that can avoid the inconvenience of labeling common biochemical material for detection in the prior art, thus achieving the purpose of higher speed of detection.
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Liu Yu-Ching
Lou Shyhliang A.
Yang Jyisy
Bacon & Thomas PLLC
Do Pensee T
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