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Chemistry: Analytical And Immunological Testing > Tracers Or Tags Tracers Or TagsTracers Or Tags patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.03/08/07 - 20070054402 - Stable isotopic identification and method for identifying products by isotopic concentration A stable isotopic identification comprising a mathematical or numerical array of concentrations of isotopes found in a batched product, said mathematical or numerical array being presented in a machine readable form and comparable to analytical results whereby the product can be distinguished from other similar products, said machine readable form ... 03/01/07 - 20070048870 - Endohedral fullerenes as spin labels and mri contrast agents This invention pertains to the discovery that certain endohedral fullerenes are functional paramagnetic materials exhibiting increased relaxation times. These endohedral fullerenes provide improved labels for use in electron spin resonance (ESR) detection systems. ... 11/23/06 - 20060263886 - Fluorous labeling for selective processing of biologically-derived samples This invention provides fluorous-based methods and compositions for preparation, separation and analysis of complex biologically-derived samples, such as proteomic and metabolomic samples. ... 10/12/06 - 20060228802 - Method of marking a product, marked product resulting thereof, and method of identifying same A method and means for identifying the authenticity and the genuine nature of a solid or liquid bulk material, by incorporating a marking composition containing at least one trace ion into the said bulk material, whereby the total concentration of the incorporated trace ions in the market bulk material is ... 09/21/06 - 20060211120 - Techniques for analyzing products containing a coloring agent A method is provided for detecting a tracer in a preparation by precipitating a coloring agent from a sample of the preparation, especially where the coloring agent otherwise interferes with detection of the tracer. A sample of the preparation may be contacted with an effective amount of a precipitating agent ... 07/20/06 - 20060160227 - Method of monitoring treating agent residuals and controlling treating agent dosage in water treatment processes Methods of monitoring residual treating agent in treated water wherein the fluorescence intensity of the water at at least two different dosages of treating agent tagged or traced with fluorescent tracers are correlated with the residual concentration of treating agent. The fluorescence response at the different treating agent dosages is ... 07/20/06 - 20060160226 - Method of monitoring treating agent residuals in water treatment processes A method of monitoring residual treating agent in treated water wherein fluorescent tracers are used to determine the concentration of treating agent in the water at two different treating agent dosages and the difference in the measured concentrations of the fluorescent tracer at the respective doses are correlated with the ... 06/15/06 - 20060128024 - Apparatus and method for immunological labeling for thin tissue sections An apparatus and a method for immunological labeling of thin tissue sections are disclosed. The treatment fluid is applied in the form of liquid droplets onto at least one slide, the arrangement of liquid droplets corresponding to the arrangement of the thin tissue sections on the carrier plate. Each slide ... 06/15/06 - 20060128023 - Networked rf tag for tracking freight The invention disclosed provides a method, system, and associated tag for detection and tracking of inanimate and animate objects. The novel method broadly comprises the steps of: a) attaching a low radio frequency detection tag to each of the objects, each tag comprising a tag antenna operable at a low ... 04/13/06 - 20060078997 - Methods for altering surface characteristics of microspheres Various methods for altering surface characteristics of a microsphere are provided. One method includes coupling an enolic acid to the microsphere to modify the surface characteristics of the microsphere. The surface characteristics may include charge density and/or pKa. A reagent can be coupled to the microsphere via the enolic acid. ... 03/16/06 - 20060057728 - Method to prevent urine specimen and other specimen substitution in substance use screening Substitution of specimens (such as urine specimens) may be detected and even prevented by adding randomization to the collection and routing of specimens. A test taker is required to ingest an ingestible entity the nature of which is concealed from the test taker and others participating in the collection of ... 02/16/06 - 20060035382 - Method of analyzing metabolism for animal, method of producing labeled animals, labeled animals and method of measuring nmr for animals The present invention provides a novel NMR metabolomics method for observing an animal by labeling the animal itself. A labeled animal labeled with a stable isotope is produced by feeding an animal a labeled food labeled with the stable isotope. Metabolism of a biological substance in the animal is analyzed ... 01/05/06 - 20060003457 - Redox polymer nanoparticles The invention provides nanoparticles comprising one or more redox-active species, methods of making such nanoparticles, and methods for using such nanoparticles, for example, as diagnostic agents for the detection of various analytes. ... 12/29/05 - 20050287674 - Labeling proteins with dyes that are insoluble or only sparingly soluble in water The proteins in a biological sample that is sought to be analyzed for its protein composition by an electrophoretic or chromatographic procedure are coupled to a dye in an unusually efficient manner by combining the sample with a solid dry composition containing the dye a buffering agent, and in preferred ... 12/15/05 - 20050277197 - Microparticles with multiple fluorescent signals and methods of using same This invention provides a novel fluorescent particle including a core or carrier particle having on its surface a plurality of smaller polymeric particles or nanoparticles, which are stained with different fluorescent dyes. When excited by a light source they are capable of giving off multiple fluorescent emissions simultaneously, which is ... 12/08/05 - 20050272160 - Surface enhanced spectroscopy-active composite nanoparticles Metal nanoparticles associated with a spectroscopy-active (e.g., Raman-active) analyte and surrounded by an encapsulant are useful as sensitive optical tags detectable by surface-enhanced spectroscopy (e.g., surface-enhanced Raman spectroscopy). ... 12/01/05 - 20050266572 - Method for marking hydrocarbons with substituted anthraquinones wherein R1 and R2 independently are hydrogen, hydroxy, OR11, amino or NR11R12; R3 and R5 independently are alkyl, aryl, aralkyl, heteroalkyl or heterocyclic; R4 and R6 independently are hydrogen or alkyl; R7, R8, R9 and R10 independently are cyano, nitro or hydrogen, provided that at least two of R7, R8, ... 11/17/05 - 20050255599 - Erasable taggant distribution channel validation method and system To address counterfeit problems, for example, we propose a secure, flexible, and cost-effective authentication solution that can be integrated into conventional distribution logistic systems. The proposed solution for product authentication and distribution channel validation comprises three major components: 1) machine-readable Raman-active chemical taggant; 2) a taggant reader; and 3) a ... 11/17/05 - 20050255598 - Use of an organic compound for the absorption of ionizing radiation Use is made of an organic compound of formula CHnI4-n, n being between one and three, in order to absorb ionizing radiation, preferably when its energy is greater than approximately 10 eV and more preferably still when it concerns X-rays or gamma rays. This material can be used in particular ... 10/27/05 - 20050239207 - Covert authentication method and apparatus An authentication system uses the unique distribution of an invisible taggant as a “signature” to identify an item. The verification is error tolerant. The taggant is made visible to a camera by special illumination. Inert taggants, with no optical activity, can be made visible by their thermal properties. ... 10/20/05 - 20050233459 - Marker detection method and apparatus to monitor drug compliance The present invention includes systems and methods for monitoring therapeutic drug concentration in blood by detecting markers, such as odors, upon exhalation by a patient after the drug is taken, wherein such markers result either directly from the drug itself or from an additive combined with the drug. In the ... 10/06/05 - 20050221494 - Surface-enhanced spectroscopy-active sandwich nanoparticles Surface-enhanced Raman spectroscopy (SERS) uses nanoscale metal particles (SERS-active particles) or surface roughness to enhance the Raman signal of Raman-active analytes contacting the surface. SERS sandwich particles contain SERS-active particles sandwiching a Raman-active substance and serve as optical tags. Preferably, the particles are rod-shaped, with each layer (SERS-active and Raman-active) ... 09/22/05 - 20050208665 - Surface-enhanced spectroscopy-active sandwich nanoparticles Surface-enhanced Raman spectroscopy (SERS) uses nanoscale metal particles (SERS-active particles) or surface roughness to enhance the Raman signal of Raman-active analytes contacting the surface. SERS sandwich particles contain SERS-active particles sandwiching a Raman-active substance and serve as optical tags. Preferably, the particles are rod-shaped, with each layer (SERS-active and Raman-active) ... 09/15/05 - 20050202565 - Luminescent compounds A, B, C, D, E, and F are selected from a variety of elements and groups, including but not necessarily limited to O, S, Se, Te, N—Ra, C(Rb)(Rc), W1, and W2. ... 08/18/05 - 20050181511 - Method of use of taggants An investigation process includes dispersing particulate taggants at a transit point with recordation of the transit point location. A subject passing the transit point has adhered to them at least one taggant from the transit point. Collection of the at least one taggant from the area of investigation allows an ... ### FreshPatents.com Support |