The present disclosure discloses a biological nanoparticle detection method with high-sensitivity in which the biological nanoparticle is reacted with a corresponding aptamer-modified copper compound nanoparticle for a period of time; then a surfactant is added to prevent the reactant particles from agglomeration; next, the reaction solution is passed through a filter membrane to enrich the biological nanoparticle-copper compound conjugate, during which small-sized molecules including proteins and uric acid pass directly through the filter membrane; then the filter membrane is washed with PBS, and silver nitrate is added for reaction; and finally a mixed solution of triethylamine hydrochloride, 3,3′,5,5′-tetramethylbenzidine and hydrogen peroxide are added for development, and the color change of the filter membrane is visually observed by naked eyes or by means of a camera.

A system and method for automated analysis of a membrane filter obtained from an air quality monitoring apparatus used for sampling airborne respirable fibres such as asbestos and synthetic mineral fibres is described. The system comprises capturing a macroscale image a membrane filter and analysing macroscale image using a computer vision method to determine a countable area of the membrane filter and one or more excluded regions within the countable area of the membrane filter. These excluded regions comprise membrane filter grid lines, air bubbles and large particulate matter. The slide is then placed on a robotic XY stage of a digital phase contrast microscope which is used to capture at least one magnified phase contrast image at each of 20 or more sample locations located across the filter member. The sample locations are selected such that a field of view at each sample location does not contain an excluded region. The magnified phase contrast images are analysed using a computer vision method to identify and count the number of fibres in the field of view, and the total number of fibres is then reported.

A microfluidic chip for circulating tumor cell separation, comprising a first shell layer, a second shell layer, and a filter membrane between the first shell layer and the second shell layer. A first channel is formed between the filter membrane and the first shell layer; a second channel is formed between the filter membrane and the second shell layer; the first shell layer is provided with m input interfaces and n output interfaces, wherein m is greater than or equal to 1 and n is greater than or equal to 1; the second shell layer is provided with x input interfaces and y output interfaces, wherein x is greater than or equal to 1 and y is greater than or equal to 1. The chip is used for circulating tumor cell separation to achieve high flux, high efficiency, and a simple method, and facilitate promotion.

A method for treating a blood specimen with which capturing rates for both a small rare cell and a rare cell having a high deformability can be improved in the case where rare cells are contained in a blood specimen. The method for isolating or detecting a rare cell includes treating a blood specimen using a filter to isolate or detect a rare cell in the blood specimen.

Integrated particulate matter sensors are operable to detect particulate matter by measuring an optical characteristic of a filter.

An analyte testing system for quantifying the presence of an analyte in a speciment by lateral flow chromatography. The system comprises a test cassette (10) with a lateral flow chromatography and a mobile hand-held processor device (16) comprising a digital camera (16a), a source of light (16b) and a processor (16c), which software and hardware (16c) are configured to determine automatically the distance between camera and object and the measures of light in the region of interest of the lateral flow chromatography prior any retrieval of image data for further analysis and quantification of the visual signals.

The present invention provides a brake dust measurement system that can accurately measure an amount of brake dust produced. The brake dust measurement system, in which a specimen having a brake is placed in a chamber and which measures brake dust produced from the brake, includes a sampling unit that samples air inside the chamber, an elemental analysis unit that performs elemental analysis of sampled air sampled by the sampling unit, a storage unit that stores elemental content information of a single or multiple elements contained in the brake, and a calculation unit that calculates an amount of brake dust contained in the sampled air on the basis of elemental analysis results of the elemental analysis unit and the elemental content information.

An analysis system configured to analyze exhaust gas exhausted front a lest article including an engine in order to facilitate determination of the source of particulate matter contained in the exhaust gas, includes a collection unit configured to collect the particulate matter contained in the exhaust gas, an elemental analysis unit configured to perform elemental analysis of the particulate matter collected in the collection unit, a storage unit configured to store content data of one or a plurality of elements contained in a constituent constituting a portion of the test article, and an inference unit configured to infer the source of the particulate matter on the basis of the content data stored in the storage unit and an elemental analysis result provided by the elemental analysis unit.

A device for measuring the dust content of an air stream includes a supply line having an inlet opening for supplying the air stream toward a measuring chamber for measuring the dust content. An adjustable flow rate pump is configured for suctioning the air stream toward the measuring chamber. A first measuring system is configured for measuring the velocity, temperature, pressure, and moisture content of the air stream at the inlet opening. A second measuring system is configured for measuring the flow rate, temperature, pressure, and moisture content of the air stream in the measuring chamber. A third measuring system is configured for measuring the dust content in the measuring chamber.

A cytodiagnosis method includes a preparation step, a first injection step, a first discharge step, a second injection step, a second discharge step, a contact step of bringing a filter and a pressing member into contact with each other after the second discharge step, a flattening step of flattening the fine undulations of the filter by pressing the filter with the pressing member after the contact step, and an observation step of observing the cells on the filter flattened by the flattening step with an observation unit while illuminating the filter with a light source while the filter is located between the light source and the observation unit.