| 摘要 |
PURPOSE:To enable accurate assay and analysis with a limited analysis process, by arranging an antibody or an antigen prone to an antigen-antibody reaction specifically with a substant to be inspected on a liquid crystal molecule as converted to a solid phase to lead it to an antigen-antibody reaction with a sample. CONSTITUTION:A liquid crystal is used in place of an insoluble carrier and a liquid crystal molecule 10 is made to react with a sample 12 after an antibody or an antigen 11 allowed to an immunological reaction specifically with a substance 20 to be inspected is converted to the phase the same as the molecule. As a result, the liquid crystal molecule 10 bonded to the substance 20 being inspected by the immunological reaction changes in the orientation characteristic according to the substance 20 being inspected thus bonded thereto. Luminous flux emitted from a light source 18 is transmitted with a polarization plate 17 to be converted to a linearly polarized light and made incident into a reactor 13. As being at a random state, the liquid crystal molecule 10 in the reactor 13 acts on the incident polarized light as photodetector or work to turn the rotary surface of the incident polarized light. This enables direct assay of the substance 20 being inspected bonded to the liquid crystal molecule 10 by measuring the quantity of the polarized light passing through the reactor 13 thereby simplifying the analysis process.
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