Disclosed is a method for capturing target cells or molecules in solution, comprising steps of: (I) getting medium containing said target cells or molecules into an apparatus comprising a capturing device for capturing said target cells or molecules; (II) getting said medium flow through said capturing device; (III) removing unbound debris, cells and molecules; (IV) getting said target cells or molecules detached from the capturing device; and (V) collecting said target cells or molecules; wherein said capturing device comprises at least one functionalized mesh comprising a mesh substrate and a functional layer formed on said mesh substrate, wherein said functional layer comprises capturing substances that can specifically bind with said target cells or molecules. The method has high specificity, as well as high throughput, and is suitable for capturing cells or molecules in a solution or expressed at the surface of cell membranes. It is particularly suited to capture and sort circulating tumor cells.

The invention relates to using serum exosomal proteins, α-synuclein and clusterin, as biomarkers in the prediction and identification of a subject having Parkinson's Disease, and provides methods for determining their levels. The biomarkers are also useful for monitoring, prevention and/or treatment of Parkinson's Disease and in differentiating Parkinson's disease from atypical parkinsonian syndromes including MSA.

Disclosed herein are highly sensitive immunoassays that utilize a capture/release mechanism to reduce non-specific binding and achieve detection with attomolar-level sensitivity. Kits that can be used for carrying out these highly sensitive immunoassays are also disclosed herein.

A biomagnetic microsphere and a preparation method and a method for protein isolation and purification therefor. The outer surface of a magnetic microsphere body of the biomagnetic microsphere has at least one liner polymer with a branched chain; one end of the linear polymer with a branched chain is covalently coupled to the outer surface of the magnetic microsphere body, and other parts are free on the outer surface of the magnetic microsphere body; a backbone of the linear polymer is a polyolefin backbone, and no cross-linking agent is required in the backbone forming process of the linear polymer. The prepared biomagnetic microsphere can implement efficient elution of target proteins and effectively reduce the retention time and retention ratio of the target proteins, and it is easy to operate and widely used.

Provided are a novel immuno-optomagnetic point-of-care (PoC) assay and in particular, a method for detecting an analyte using magnetic nanoparticles and quantum dots (QD) having antibodies which are interfaced with the fabricated PoC biochip platform for quantitative analysis, and an immuno-optomagnetic detection method. The method also relates to methods of making such a plurality of conjugated magnetic quantum dot nanoparticles, methods of detecting analytes using such a plurality of conjugated quantum dot nanoparticles.

Provided are an additive and a surface treatment agent capable of suppressing agglutination of latex particles contained in a reagent for a latex agglutination reaction during storage of the reagent although a synthetic polymer is contained as an active component. An additive is to be added to latex particles used in a reagent for a latex agglutination reaction. The latex particles have not been subjected to blocking treatment. The additive includes a polymer containing more than 60% by mass and 99% by mass or less of hydrophilic repeating units (A) relative to all repeating units and 1% by mass or more and less than 40% by mass of hydrophobic repeating units (B) relative to all repeating units, and having a weight average molecular weight of 3,000 or more.

A method for detecting a substance to be detected, which comprises bringing a) a first recognizing substance bound to a fibrous substance, b) a second recognizing substance which is labeled, and c) a substance to be detected, provided that the first recognizing substance and the second recognizing substance are capable of being bound to the substance to be detected, into contact with one another in a dispersed state so as to form a complex in which the above a, b and c are bound together, separating the complex and an unbound b, and detecting the label of the obtained complex.

A kit-of-parts for attaching an object on a substrate (1, 1′) having (i) at least a first solution having at least one first compound, wherein the first compound is at least one of a gelling agent, a gellable agent, and a thickening agent, and (ii) at least a first substrate (1, 1′) having a surface (2, 2′). The first solution is suitable for forming at least a first dispersion of an object in the first solution when a the object is added to the first solution. The first dispersion is suitable for attaching the object on a functionalized surface (3, 3′) of the substrate (1, 1′) when the first dispersion is added to the functionalized surface (3, 3′) of the substrate (1, 1′).

Proposed is a simple disease diagnosis tool including a base plate made of a material that is hydrophilic and spreads water sufficiently, and pattern display panels made of a material that is also hydrophilic and spreads water sufficiently and each adhered to one side surface of the base plate, wherein a reagent is applied to one side of the base plate, and wherein the pattern display panels include a plurality of disease test display portions each configured to have one end in contact with the reagent of the base plate or to be spaced apart from the reagent of the base plate by predetermined intervals, and diagnosis checking lines each marked to surround the outside of the disease test display portions while being spaced apart from the disease test display portions at predetermined intervals.

The present disclosure provides novel gravitational flow assays for detecting an antigen in a biological sample using DNA-capture sequences. Specifically, gravitational flow assays and methods of detecting viruses, including coronaviruses, are provided.