Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving hydrolase
Reexamination Certificate
2006-04-25
2006-04-25
Davis, Ruth A. (Department: 1651)
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving hydrolase
C435S004000, C435S023000, C424S094610
Reexamination Certificate
active
07033777
ABSTRACT:
The present invention is directed to a method and a test kit for detecting cockroach allergens and/or determining the total allergen level. A sample from an environment in which cockroaches are present or are suspected to be present is provided. The sample and a substrate composition comprising a chitinase substrate are then contacted. The presence of cockroach allergens can be determined by observing or detecting the magnitude of a measurable change of a property of the substrate composition following the contact between the sample and the substrate composition wherein the magnitude of the measurable change of a property of the substrate composition is proportional to the total allergen level. The total allergen level can be determined by measuring the magnitude of the measurable change of a property of the substrate composition, or by comparing the magnitude with a reference standard.
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Chang Frank N.
Duong Phu T.
Davis Ruth A.
RatnerPrestia
Temple University of the Commonwealth System of Higher Education
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