Luminescent sensing of organophosphates using europium(III) containing imprinted polymers prepared by RAFT polymerization |
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Authors: | Southard Glen E Van Houten Kelly A Ott Edward W Murray George M |
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Affiliation: | The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723, United States |
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Abstract: | Molecularly imprinted polymers capable of sensing organophosphorous compounds by luminescence have been prepared by reversible addition fragmentation chain transfer (RAFT) polymerization. The polymer contained a dithiobenzoate substituted tris(β-diketonate) europium(III) complex which served as a polymerization substrate and as a luminescent binding site for pinacolyl methylphosphonate (PMP), the hydrolysis product of the nerve agent Soman. The resultant polymer allowed quantitation of PMP in the low ppb range with minimal interference from similar compounds. Polymers were characterized by luminescence spectroscopy and scanning electron microscopy. |
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Keywords: | Molecular imprinting Luminescence Organophosphates Controlled polymerization |
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