Abstract: A chemiluminescence-based detection system and method for counting blood cells by capturing and isolating target blood cells flowing through a microfluidic chip and detecting light emitted by the captured target blood cells.

Abstract: A method and a device for the assessment of at least one parameter of particles in a liquid analyte material are disclosed. The method comprises providing a device having a sample compartment with an exposing domain, an inlet through which a volume of a liquid sample representing the analyte material can been introduced, and a flow system comprising at least a channel allowing at least a portion of the volume of the liquid sample to flow within the device. The volume of the liquid sample passes into the exposing domain of the sample compartment, which can quantitatively detect spatial image data and process the detected image electromagnetic signals from the sample in the exposing domain of the device. A spatial image representation of the exposing domain, and processing the detected image presentation obtaining the assessment of the at least one parameter is generated in the device.

Abstract: The invention provides for rapid response analysis through lateral flow chromatographic assays of specific antigens present in human or animal fluids, or in agricultural, microbial or biological products, with an audio and visual result of the analysis and when needed, an electronic surge to provide heat for rapid results. A lateral flow device for conducting the analysis includes a plurality of components, and a method for making the device forms components of the device on an elongate, ribbon-like substrate of dielectric material, then folds the substrate into shorter lengths which are then secured together to establish a multiple-layered, self-sustaining structure.

Abstract: The present invention relates to an in vitro method for detecting a pathogenic conformational isomer of the prion protein in a sample, said method comprising a preliminary step for capturing the pathogenic conformational isomer by putting the sample into contact with nanobeads covered with a ligand of the pathogenic conformational isomer, and then applying a cyclic amplification of the misfolded prion protein directly on the solid support having captured the pathogenic conformational isomer, and detecting the presence of the pathogenic conformational isomer. The invention also relates to a kit for applying this method and to a method for decontaminating a biological sample.

Abstract: The invention provides a method of treating a polyvinyl difluoride (PVDF) membrane comprising: (a) contacting said membrane with an alcohol and a wetting agent; and (b) drying said membrane.

Abstract: This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications.

Abstract: Disclosed are biomimetic membrane precursors and membranes formed therefrom. Also disclosed are methods of making biomimetic membrane precursors and membranes formed therefrom. Methods of using, including methods of storing and handling biomimetic membrane precursors and membranes formed therefrom, are also disclosed.

Abstract: Sensing compositions, sensing element, sensing systems and sensing devices for the detection and/or quantitation of one or more analytes, Compositions comprising carbon nanotubes in which the carbon nanotubes retain their ability to luminesce and in which that luminescence is rendered selectively sensitive to the presence of an analyte. Compositions comprising individually dispersed carbon nanotubes, which are electronically isolated from other carbon nanotubes, yet which are associated with chemical selective species, such as polymers, particularly biological polymers, for example proteins, which can interact selectively with, or more specifically selectivity bind to, an analyte of interest. Chemically selective species bind, preferably non-covalently, to the carbon nanotube and function to provide for analyte selectivity. Chemically selective species include polymers to which one or more chemically selective groups are covalently attached.

Abstract: The present invention relates to the use of multiple different light emitting molecules that emit different and detectable emission signals to provide systems and methods to detect different target products in a single assay sample, wherein the different light emitting molecules are positioned an optimal distance from metallic particles thereby enhancing emissions. Preferably, the systems and methods further comprise use of either microwave or sonic energy to increase binding reactions, timing of such reactions within the assay sample and reduce background non-specific biological absorption.

Abstract: A device and method for the separation of a component in a liquid sample prior to the detection of an analyte in said sample, wherein a sample is added to a receiving zone on a substrate, said substrate further optionally comprising a reaction zone, a transport or incubation zone connecting the receiving and reaction zone, respectively, forming a flow path on a substrate, wherein said substrate is a non-porous substrate, and at least part of said flow path consists of areas of projections substantially vertical to said surface, and having a height (H), diameter (D) and reciprocal spacing (t1, t2) such, that lateral capillary flow of said liquid sample in said zone is achieved, and where means for separation are provided adjacent to the zone for receiving the sample. Said means for separation are chosen among filter means, optionally enhanced by affinity binding and/or aggregation; magnetic means, also optionally enhanced by affinity binding and/or aggregation; and acoustic means.

Abstract: The present invention provides for metallic nanostructures or nanoburgers comprising a dielectric layer positioned between metallic layers and their use in metal enhanced emissions systems to enhance emissions from fluorophores, including intrinsic and extrinsic; luminophores; bioluminescent species and/or chemiluminescent species. The multilayer nanoburgers exhibit several distinctive properties including significantly enhanced intensity of emissions, decreased lifetime and increased photostability by simply varying the thickness of the dielectric layer while maintaining a constant thickness of the two metallic layers on opposite sides of the dielectric layer.

Abstract: The present invention is to provide an immunochromatography method which is capable of performing a detection with high-sensitivity or reduced false-positives by suppressing the occurrence of false-positive when a signal is amplified. An immunochromatography method includes in a state of where a complex of a test substance and a labeling substance containing a metal coupled with a first binding substance for the test substance is formed, developing the complex on an insoluble carrier in presence of a protease hydrolyzate of protein; capturing the test substance and the labeling substance at a detection site of the insoluble carrier containing a material which has a binding property to the first binding substance for the test substance or a second binding substance for the test substance; and detecting the test substance by amplifying the labeling substance captured.

Abstract: A new fractionation device shows desirable features for exploratory screening and biomarker discovery. The constituent MSCs may be tailored for desired pore sizes and surface properties and for the sequestration and enrichment of extremely low abundant protein and peptides in desired ranges of the mass/charge spectrum. The MSCs are effective in yielding reproducible extracts from complex biological samples as small as 10 ?l in a time as short as 30 minutes. They are inexpensive to manufacture, and allow for scaled up production to attain the simultaneous processing of a large number of samples. The MSCs are multiplexed, label-free diagnostic tools with the potential of biological recognition moiety modification for enhanced specificity. The MSCs may store, protect and stabilize biological fluids, enabling the simplified and cost-effective collection and transportation of clinical samples.

Abstract: Compositions and methods are provided for the use of nanoparticles, which may be referred to herein as mass dots, as mass tags for probes such as antibodies, aptamers, nucleic acids, etc. in multiplexed bioassays with ICP-MS detection.

Abstract: A method of collecting target regions from a target object is described. The method in one embodiment comprises mounting a negatively-charged membrane on a first side of a substrate, mounting a target object on the membrane, positioning a collection material adjacent to the target object, and passing a laser beam from a second side of the substrate, through the substrate, the membrane, and the target object, to dissect target regions from the prepared tissue section, whereby the dissected target regions adhere to the collection material. In another embodiment, the present invention is a system for collecting target regions from a target object. In one embodiment, the system comprises a substrate having a first side and a second side, a negatively-charged membrane adhered to the first side of the substrate, and a collection material mountable adjacent to the membrane.

Abstract: An objective is to provide Si/Si3N4 system nanosized particles each exhibiting reduced environmental load together with minimized bio toxicity, excellent chemical stability, enhanced relative light emission intensity, and less degradation of emission intensity during continuous exposure to light; a biosubstance labeling agent capable of keeping on labeling a biosubstance exhibiting luminance enhanced for a long duration with the Si/Si3N4 system nanosized semiconductor particle of the present invention; and also a method of manufacturing the Si/Si3N4 system nanosized semiconductor particle of the present invention.

Abstract: The biological test kit is a device for drawing and, optionally, testing biological samples. The biological test kit is an array of Lancets set in wells in a rigid base. Each lancet well is covered by a protective cover which when deformed permits the lancet to puncture a user or other patient. In one embodiment the biological test kit employs distinct covers for each lancet and in another the covers are formed from sheet material formed into blisters which cover the lancet.

Abstract: The present invention is directed to a luminescent immunoassay method for detecting an analyte in a liquid sample with high sensitivity. The invention provides a unique combination of (i) using a probe having a small sensing surface area for binding analyte molecules, (ii) using a high molecular weight branched polymer conjugated with multiple binding molecules and multiple luminescent labels, and (iii) cycling the probe having immunocomplex formed back to the reagent vessel and amplification vessel 1-10 times and repeating the reaction with the reagent and the amplification polymer, to improve the sensitivity of detection level. For each cycling, the luminescent signal is increased significantly over the noise.

Abstract: More particularly, the present invention relates to a method for the detection of a target, e.g. pathogen in a human body fluid wherein a body fluid sample is collected with a swab member.

Abstract: An immunoassay test strip includes a sample pad for receiving a liquid patient sample; a conjugate pad fluidly coupled to the sample pad, wherein the conjugate pad contains a substantially uniform application of conjugate reagent; a contact pad fluidly coupled to the conjugate pad; a porous or bibulous member, e.g., made from nitrocellulose, fluidly coupled to the contact pad which is capable or transporting a liquid sample along the test strip, wherein the porous or bibulous member serves as the solid support upon which immunoreactions occur, and an absorbent pad fluidly coupled to the porous or bibulous member, which serves to draw sample fluid introduced onto the sample pad through the respective conjugate pad, contact pad and porous or bibulous member.