G - Physics – 01 – N
Patent
G - Physics
01
N
167/43, 150/9
G01N 21/01 (2006.01) G01N 33/553 (2006.01)
Patent
CA 1039632
IMPROVED SUBSTRATE FOR IMMUNOLOGICAL TESTS AND METHOD OF FABRICATION THEREOF Abstract of the Disclosure Substrates for providing improved contrast, visible to the unaided eye, between single and double layers of immunologically reactive biological particles are fabricated by depositing an alloy of indium and gold on glass slides, and then heating the slides in air at different temperatures or time intervals to cause various degrees of oxidation of the indium. The various degrees of oxidation produce different colored slides having different sensitivities for different thicknesses of the layers of the biological particles, and each differently colored slide is differently sensitive to single and double layers of particular biological particles.
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