| abstract |
Provided are methods, compositions and articles of manufacture for detecting biomarkers indicative of exposure of a mammal to organophosphate compounds. The organophosphate compound includes pesticides, their metabolites and highly reactive organophosphoryl compounds. In one ascpect of the invention, the biomarker results from interaction of the organophosphate compound with a polypeptide such as a serine hydrolase that includes acetylcholiestersae. The interaction of a biomarker so derived with a optical sensor comprising a receptor bound to a biopolymer results in an optical readout that reports the presence of the biomarker. In one aspect of the invention the receptor that is bound to a biopolymer, such as a poly-di- acetylene polymer, is a antibody that selectively recognizes the biomarker. |