Use of thermochromic liquid crystals in reflectometry based diag

Chemistry: analytical and immunological testing – Optical result

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436 46, 436 63, 436165, 436169, 422 8205, 422 8209, 374161, 374162, 435 4, 435 25, G01N 2100

Patent

active

059727152

ABSTRACT:
A method for improving the accuracy of temperature sensitive diagnostic assays which are carried out using reflectance spectrometers to detect color changes in a solid test system which has been contacted with a fluid test system suspected of containing an analyte whose presence and/or concentration is being sought. The method involves determining the temperature of the solid test material by measuring the reflectance of a thermochromic liquid crystal in close proximity to the solid test material and correcting the result of the assay for a change in temperature from a pre-selected nominal temperature.

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patent: 5547283 (1996-08-01), Kronberg
Kubo et al "Temperature dependency of optical properties of thermochromic materials". Netsu Bussei (1997), 11(2), 39-45 Abstract only, 1997.
Nagai, Hirotoshi "Indicator for anesthetic gases by means of cholesteric liquid crystal". Fukushima Igaku Zasshi, 30(5/6) 357-64. Abstract only, 1980.

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