Patent application number | Description | Published |
20090104709 | FLUID TRANSFER DEVICES - A fluid transfer device includes a body and a sample holding reservoir formed in the body. The sample holding reservoir is capable of imbibing a fixed and very small quantity of fluid from a fluid source and dispensing the fixed quantity of fluid therefrom at a destination. The fluid transfer device may be manufactured from various materials including semiconductor materials such as silicon, polymer materials, ceramic material, and metal or metallic materials. The fluid transfer device may be used to puncture a closure covering the fluid source or the destination. | 04-23-2009 |
20090159510 | Rare Earth Downconverting Phosphor Compositions for Optically Encoding Objects and Methods and Apparatus Relating to Same - Rare Earth downconverting compositions for optical encoding objects and related methods and apparatuses. The rare earth (RE) downconverting phosphor compositions are capable of generating a unique optical spectrum or unique optical signature from which an optical code or barcode can be derived. In one exemplary embodiment, the RE downconverting phosphor composition may contain two or more lanthanide materials each having a host and at least one downconverting emitter. Each lanthanide material emits a detectable electromagnetic radiation emission peak at an intensity, which is proportional to the amount of emitter present, upon excitation with an absorbable electromagnetic radiation, the emitted radiation comprising a lower energy, i.e., a longer wavelength than the absorbable radiation. One or more ratios of the intensities of the emitted detectable electromagnetic radiation may be used to uniquely identify the composition. In another exemplary embodiment, the RE downconverting phosphor composition may contain a lanthanide material having a host and at least two emitters. The lanthanide material emits at least two different detectable electromagnetic radiation emission peaks each at intensity upon excitation with an absorbable electromagnetic radiation, the emitted radiation comprising a lower energy, i.e., a longer wavelength than the absorbable radiation. | 06-25-2009 |
20090218805 | METHODS FOR FABRICATING OPTICALLY ENCODED PARTICLES AND METHODS FOR OPTICALLY ENCODING OBJECTS WITH SUCH PARTICLES - A method for labeling an object such as a biological sample, including printing at least two different light-emitting species onto a substrate which are capable of displaying a unique optical signature when excited; and externally attaching the object to the printed at least two different light-emitting species. Also, a method for conducting a large scale test, including printing a first label onto a first substrate, the first label comprising at least two different light-emitting species capable of displaying a first unique optical signature when excited; printing a second label onto the first substrate or a second substrate, the second label comprising at least two different light-emitting species capable of displaying a second unique optical signature when excited; externally attaching a first object, such as a first biological sample to the first label; externally attaching a second object, such as a second biological sample to the second label; processing the first and second objects in a combined manner; analyzing the processed first and second objects; and identifying the analyzed first and second objects using their respective first and second labels. | 09-03-2009 |
20100046825 | AUTHENTICATION AND ANTICOUNTERFEITING METHODS AND DEVICES - Methods and devices for marking objects include the use of a dimensionally hierarchical series of submicron sized features to emboss, mold, and/or print markings into objects. The markings may include security features, codes, numbers, symbols, signs and any combinations thereof. The markings may be used for identification, authentication or attribution of the item. | 02-25-2010 |
20100144053 | MULTIPLEX ASSAY READER SYSTEM - A system for reading optical codes includes a set of beads or particles, each of which has a surface functionalization selected for attaching a biomolecule to be studied, and a device for reading an optical code provided by rare earth-based light emitter associated with each of the beads or particles. The device includes an excitation source and a color CCD light detector. The excitation source excites the rare earth-based light emitters of each of the beads, thereby causing the emitters to emit light having a unique ratio of relative intensities, the unique ratio of the relative intensities forming the optical code of the bead or particle. The color CCD light detector detects the emitted light having the unique ratio of the relative intensities and a memory stores an image of the emitted light. | 06-10-2010 |
20130005583 | NUCLEIC ACID SEQUENCING TECHNIQUE USING A PH-SENSING AGENT - The invention relates to a composition, method and apparatus for determining the sequence of a nucleic acid strand utilizing a pH-sensing agent. | 01-03-2013 |
20140336061 | METHODS FOR OPTICALLY ENCODING AN OBJECT WITH UPCONVERTING MATERIALS AND COMPOSITIONS USED THEREIN - The present invention relates generally to encoding samples. More specifically, it relates to barcodes and compositions involving upconverters and methods including them. In a composition aspect of the invention, a composition comprising two or more lanthanide materials is provided. Each lanthanide material comprises a host, an absorber, and an emitter, and the materials emit detectable electromagnetic radiation upon excitation with absorbable electromagnetic energy. One or more relative ratios of emission intensities uniquely identify the composition. | 11-13-2014 |
20150192522 | RARE EARTH DOWNCONVERTING PHOSPHOR COMPOSITIONS FOR OPTICALLY ENCODING OBJECTS AND METHODS AND APPARATUS RELATING TO SAME - Rare Earth downconverting compositions for optical encoding objects and related methods and apparatuses. The rare earth (RE) downconverting phosphor compositions are capable of generating a unique optical spectrum or unique optical signature from which an optical code or barcode can be derived. In one exemplary embodiment, the RE downconverting phosphor composition may contain two or more lanthanide materials each having a host and at least one downconverting emitter. Each lanthanide material emits a detectable electromagnetic radiation emission peak at an intensity, which is proportional to the amount of emitter present, upon excitation with an absorbable electromagnetic radiation, the emitted radiation comprising a lower energy, i.e., a longer wavelength than the absorbable radiation. One or more ratios of the intensities of the emitted detectable electromagnetic radiation may be used to uniquely identify the composition. In another exemplary embodiment, the RE downconverting phosphor composition may contain a lanthanide material having a host and at least two emitters. The lanthanide material emits at least two different detectable electromagnetic radiation emission peaks each at an intensity upon excitation with an absorbable electromagnetic radiation, the emitted radiation comprising a lower energy, i.e., a longer wavelength than the absorbable radiation. | 07-09-2015 |