The present invention addresses the problem of providing a method for measuring 25-hydroxy vitamin D and a measurement reagent, the method and the reagent being based on a competitive immunoassay. The present invention provides a reagent for measuring 25-hydroxy vitamin D based on a competitive immunoassay, which includes at least the following composition: (1) a Vitamin D derivative represented by the chemical formula (I) and/or (II), (2) an anti-25 hydroxy vitamin D antibody. In addition, the present invention provides a reagent for measuring vitamin D based on a competitive latex turbidimetric immunoassay (competitive LTIA) in which, in particular, a vitamin D derivative or an anti-25-hydroxy vitamin D antibody is immobilized on latex.

The present invention addresses the problem of providing a method for measuring 25-hydroxy vitamin D and a measurement reagent, the method and the reagent being based on a competitive immunoassay. The present invention provides a reagent for measuring 25-hydroxy vitamin D based on a competitive immunoassay, which includes at least the following composition: (1) a Vitamin D derivative represented by the chemical formula (I) and/or (II), (2) an anti-25 hydroxy vitamin D antibody. In addition, the present invention provides a reagent for measuring vitamin D based on a competitive latex turbidimetric immunoassay (competitive LTIA) in which, in particular, a vitamin D derivative or an anti-25-hydroxy vitamin D antibody is immobilized on latex.

The invention features a substrate and compositions, kits, devices, and methods employing the substrate that produces an isolated population of cells from a general population. The isolated population is enriched for one or more target populations. Substrate is can be liquefied and allows recovery of unlabeled, viable, and functional cells.

Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.

Compositions and methods are described for self-assembled polymer materials having at least one of macro, meso, or micro pores.

The present invention relates to a nano-dynamic biosensor and a fabrication method therefor. A biosensor according to the present invention comprises a substrate having a hollow structure and a graphene layer formed thereon wherein a probe material is bound to the surface of the graphene layer and the resonance vibration of the hollow structure formed in the substrate is modulated as the probe material increases in weight when a target material to be detected is coupled to the probe material without being labeled, whereby the biosensor is expected to take advantage of the modulation to measure the coupling of the target material including vaccinia virus with high sensitivity on a femtogram (10.sup.−15 g) level.

Provided is a device or method for detection of leukocytes in a disease state or leukocytes in an abnormal state, or diagnosing a leukocyte-related disease, according to the device or method according to an aspect, it is possible to detect leukocytes in a disease state or leukocytes in an abnormal state at an early stage using a small amount of sample isolated from a subject, and thus, there is an effect that allows diagnosis of a leukocyte-related disease, for example, inflammation, an infectious disease, an immune disease, a metabolic disease, or cancer, etc.

Compositions and methods for the isolation of naive, untouched target cells of interest are disclosed.

Compositions and methods for the isolation of naive, untouched target cells of interest are disclosed.

There are provided a method and a kit for evaluating allergen inactivators, the method and kit making it possible to carry out a precise and reproducible evaluation irrespective of the type of test drug, or the type of accompanying components thereof, that is subject to the evaluation.

A method for evaluating allergen inactivators, said method being characterized by comprising: a step for preparing an allergen-supporting membrane configured by supporting allergens on a membrane for supporting allergens; a step for treating the allergen-supporting membrane using a test drug; a step for washing the allergen-supporting membrane treated using the test drug, and subsequently treating the allergen-supporting membrane using antibodies specific to the allergens; a step for washing the allergen-supporting membrane treated using the antibodies specific to the allergens, and subsequently detecting the specific antibodies bound to the allergens; and a step for assessing the extent to which the allergens are inactivated by the test drug based on the detected quantity of the specific antibodies.