Abstract:
A method and device for determining pancreatic lipase in an animal blood sample. In one aspect, the device includes a compartmentalized container for storing and reacting the reagents for use in the assay. In another aspect, the device include a multilayer device having a spreading layer and reagents layers with dried reagents for detecting pancreatic lipase. The devices also includes a system for the optical determination of a color change in the reaction mixture. The method includes the use of the device to detect pancreatic lipase in samples.
Abstract:
FIV gag polypeptides and a method and device for determining a feline immunodeficiency virus infection in an animal. The method includes contacting a biological sample from a felid with the FIV polypeptides and determining the binding of antibodies in the sample to the polypeptides. A device for detecting FIV antibodies is provided.
Abstract:
There is provided apparatuses and methods for eluting microorganisms from filter media. The apparatus includes an housing for receiving filer media suspected of containing microorganisms and means for exposing the filter media to a pressurized buffer solution. By passing the buffer solution through the filter media under pressure, microorganisms trapped in or on the filter media are eluted therefrom.
Abstract:
The invention provides improved methods and compositions for selectively binding and/or detecting an aggregating abnormal form of a (prion) protein in the presence of non-aggregating normal form of the (prion) protein, using a polyionic material having a binding avidity for the abnormal aggregating form of the (prion) protein, a switterionic agent (a SWITTERGENT
Abstract:
A method and device for determining a feline immunodeficiency virus infection or vaccination in an animal. The method includes contacting a biological sample from a felid with various FIV polypeptides and determining the binding of antibodies in the sample of the polypeptides. The determination of whether an animal is infected with FIV or has been vaccinated against FIV can be determined by measuring the animal's immune response to an FIV env polypeptide. A device for detecting FIV antibodies is provided.
Abstract:
A retaining clip for retaining reagent test slides in a stacked arrangement includes a first assembly having a first cover plate and at least two parallel, co-planar rails extending transversely from an inner surface of the first cover plate. A second assembly includes a second cover plate, and a rail receiving platform extending transversely from an inner surface of the second cover plate. The first cover plate and the second cover plate define between them a space for receiving the plurality of reagent test slides. The rails of the first assembly include ratchet teeth, and the rail receiving platform of the second assembly includes pawls. The pawls engage the ratchet teeth to prevent the separation of the first assembly and the second assembly and to securely but removably hold the plurality of reagent test slides in a stacked arrangement between the first and second cover plates.
Abstract:
The invention provides methods and compositions for inhibiting binding of IgE to a high affinity receptor. The methods and compositions are useful in the treatment of allergic diseases and allergy symptoms in mammals.
Abstract:
beta-diketone fluorescent tags are disclosed, particularly those enabling the use of excitation energy in the near visible or visible spectrum. In some cases, these tags allow the use of cost-effective excitation devices such as LED's. The compounds form fluorescent chelates (complexes) with lanthanide (III) rare earth metal ions (such as EU3+). The fluorescent complex may be included in a latex microparticle, such as a styrene latex particle. Ideally, the complex has an absorption maximum lambda equal to or greater than 360 nm, and the compound is characterized by a pKa
Abstract:
A method for detecting bacteria and determining the concentration thereof in a liquid sample includes the steps of taking an optical section through a container holding a volume of the liquid sample at a predetermined field of view and at a predetermined focal plane depth or angle and after a period of time has elapsed to allow non-bacteria in the sample to settle to the bottom of the container. Since bacteria auto arranges in the liquid sample, forming a lattice-like grid pattern, an optical section through the volume of auto-arranged bacteria may be used to measure the quantity of bacteria residing in that section. A container for holding the liquid sample has particular structure which aids in separating the non-bacteria from the bacteria.