Abstract:
Stable, enzymatically triggered chemiluminescent 1,2-dioxetanes with improved water solubility and storage stability are provided. Dioxetanes further substituted with two or more water-solubilizing groups disposed on the dioxetane structure and an additional fluorine atom or lower alkyl group provide superior performance by eliminating the problem of reagent carryover when used in assays performed on capsule chemistry analytical systems. These dioxetanes display substantially improved stability on storage. Compositions comprising these dioxetanes, a non-polymeric cationic surfactant enhancer and optionally a fluorescer, for providing enhanced chemiluminescence are also provided.
Abstract:
PROBLEM TO BE SOLVED: To provide a chemiluminescent electron-rich aryl-substituted 1,2-dioxetane compound. SOLUTION: In the compound, an aryl group is multiply substituted with suitable electron-donating groups such that a light-emitting pattern of a molecule results in a very high luminescent count, thus providing for a sensitive and precise assay for haptens, analytes, polynucleotides and the like. The substituted aryl-containing 1,2-dioxetane compound can be used as a direct label in an immunoassay or when derivatized with an appropriate leaving group, can be used as a substrate for an enzyme immunoassay. The unusual chemiluminescence of the compound allows the timing of the luminescent reaction to be exactly controlled. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
Methods for generating a chemiluminescent enzyme substrate in situ, in aqueous or other assay conditions. Also disclosed are methods to use the substrates to generate light, detect and/or quantify enzymes, antigens, and/or nucleic acids. Kits relating to these methods are also disclosed.
Abstract:
PROBLEM TO BE SOLVED: To increase bioavailability and/or tissue level of an orally administrated pharmaceutical compound, to decrease metabolic clearance of the compound, and to prolong its physiological half time. SOLUTION: An antineoplasm prodrug comprises taxol or a substituted taxol covalently bonded with a phospholipid compound, wherein the phospholipid compound is selected from the group consisting of phosphatidylglycerol, 1-O-alkyl-sn-glycero-3-phosphatidic acids, 1-O-acyl-sn-glycero-3-phosphatidic acids, 1-S-alkyl-sn-glycero-3-phosphatidic acids and 1-S-acyl-sn-glycero-3-phosphatidic acids and the substituted taxol compound is selected from the group consisting of taxol compounds each having a lipophilic substituent at β-amino of a taxol side chain. COPYRIGHT: (C)2004,JPO