Abstract:
Disclosed herein is a method for diagnosing hepatic cancer by analysing a sample and determining the level of at least one compound selected from the group consisting of glycine, trimethylamine-N-oxide, hippurate and citrate and comparing the levels in the sample with control levels. The analysis of the sample can involve the determination of a profile for the sample. The methods disclosed are useful in distinguishing between a patient having hepatic cancer and a patient having cirrhosis.
Abstract:
A flow regulating system for maintaining a stable air flow comprising at least one pump, a mass flow sensor, an ambient temperature sensor, an ambient pressure sensor, a temperature compensation sensor measuring the temperature of said mass flow sensor, and a control system is disclosed, as well as a method for measuring a flow using said flow regulating system, a device for the monitoring of air-borne compounds present in air in both a gas phase and a particle phase, wherein it comprises a sampling device, an enrichment trap 1, a calibration and tuning module, a blank module, said flow regulating system, a chromatography unit, and a detection unit, and a method for the detection of air-born compounds in an air flow by using said monitoring device.
Abstract:
The present invention describes the development of a end-capped bipyridine compound having formula (A) and the zinc complex having formula (B). The, assay having formula (1) can be used to estimate and quantify the amount of zinc ions by monitoring the fluorescence changes. The assay with formula (1) can be use to image and detect Zn 2 ions in MCF7 cell lines. The zinc complex of formula (2) and (4) can be used as a fluorescent sensor for cyanide anions using analyte replacement protocol. The assay with formula (2) is, selective only to cyanide anions even in the presence of other competing anions. The assay with formula (3) having bright green solid state emission is used for the preparation of formula (4). The orange fluorescent powder of assay with formula (4) is used for the selective detection of CN ions in aqueous solution.
Abstract:
The present disclosure provides methods and kits to detect and quantitate NOx compounds in a biological sample. The methods include reacting a mixture comprising a nitrite compound a chromogenic reagent to form a colored compound, contacting the mixture with a retention medium configured to retain the colored compound, and detecting the colored compound retained on the retention medium.
Abstract:
Disclosed herein are methods for quantitative determination of acetamide in a composition of a sample. The method comprises the addition of deuterium - labelled acetamide-d3, extraction by chromatography and detection by mass spectrometry.
Abstract:
The invention herein disclosed provides for compositions, methods for synthesizing said compositions, and methods for using said compositions, wherein the compositions and methods may be used to bind to and/or deactivate a poison oak oil, such as urushiol. The compositions and methods can be used to treat and/or reduce an inflammatory reaction and/or hypersensitivity to natural compounds found in poison oak, poison ivy, poison sumac, mango, lac tree, and cashew nut.
Abstract:
Devices, methods and systems effective to evaluate a physical or chemical property of an ion exchange resin-treated biological fluid sample are provided.
Abstract:
A non-reactive monomer mixture is formed from a dihydroxy component having one or more dihydroxy compounds dissolved in a melted diaryl carbonate. The dihydroxy component has one or more dihydroxy compounds with a melting point above the melting point of the diaryl carbonate. The dihydroxy component has less than 600 ppb alkali metal, an acid stabilizer, or both less than 600 ppb alkali metal and an acid stabilizer. The dihydroxy compounds of the dihydroxy component and the diaryl carbonate are present in a mole ratio of from 0.9 to 1.1. The monomer mixture is at a temperature between the saturation point of the monomer mixture and the highest melting temperature of the individual dihydroxy compounds. The non-reactive monomer mixture can be stored and transported and then polymerized to form polycarbonate upon addition of a catalyst.
Abstract:
The present invention includes a method for analyzing reactions. The method includes the steps of providing a solution of at least one acceptor chemical and at least one donor chemical. The donor chemical is capable of donating a chemical moiety to the acceptor chemical. The solution further includes at least one controller chemical that affects the reaction between the donor chemical and the acceptor chemical. The solution is then incubated so that a portion of the acceptor chemical reacts with the donor chemical to form an acceptor product. Unreacted donor chemical is separated from the acceptor product. The acceptor product or the donor chemical is then measured using X-ray fluorescence. Further methods of analysis are disclosed.
Abstract:
The invention provides biomolecule binding ligands, collections of biomolecule binding ligands, and their use in the purification of biological mixtures and in the identification of ligands having an affinity for a substance. The ligand is a compound of formula (III) or a compound of formula (IV): wherein for compounds of formula (I) one of R 1a , R 1b ,R 2 , R 3 and R 4 is a group comprising a linker attached to a support, and the others of R 1a , R 1b , R 2 , R 3 and R 4 are independently selected from optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, and R 1a , R 1b and R 2 are additionally selected from hydrogen, and R 2 is additionally further selected from -S(=O)R 5 and -C(=S)NR 6 R 7 , wherein R 5 , R 6 and R 7 are independently optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, or, optionally, two or more of the others of R 1a , R 1b , R 2 , R 3 and R 4 , together with the atoms to which they are bound, may form a ring; and for compounds of formula (II) one of R 1a , R 1b , R 3 and R 4 isa group comprising a linker attached to a support, and the others of R 1a , R 1b , R 3 and R 4 are independently selected optionally substituted C 1-20 alkyl, optionally substituted C 3-20 heterocyclyl or optionally substituted C 5-20 aryl, and R 1a , and R 1b are additionally selected from hydrogen, or, optionally, two or more of the others of R 1a , R 1b , R 3 and R 4 , together with the atomsto which they are bound, may form a ring.