Embodiments of the present disclosure provide for methods of detecting, sensors (e.g., chromogenic sensor), kits, compositions, and the like that related to or use tunable macroporous polymer. In an aspect, tunable macroporous materials as described herein can be used to determine the presence of a certain type(s) and quantity of liquid in a liquid mixture.

The invention relates to a testing device with a testing assembly for lateral flow assay. The testing assembly comprises liquid sample receiving interface arranged on a support structure defining a plane. The liquid sample receiving interface is configured to receive a liquid sample. The testing assembly comprises at least one testing strip fluidly connected to the liquid sample receiving interface. The testing strip comprises a capillary wick fluidly connected to the liquid sample receiving interface and including at least one test portion, the test portion comprising at least one respective reacting material configured for reacting in a predetermined manner to at least one specific analyte. The testing device comprises an optical sensor, arranged and configured for detecting light reflected from the at least one test portion and for converting the detected light into an electrical signal representing an intensity and/or a color of the detected light. The testing device further comprises a conversion unit for converting the electrical signal into digital data representing the intensity and/or the color of the detected light, and a transmitter unit for wirelessly transmitting digital data.

An apparatus adapted to perform spectrometric measurements, said apparatus comprising a tunable laser light source adapted to generate a laser light with an excitation wavelength supplied to an optical sensor which produces a sample specific response light signal; an optical reference filter adapted to measure laser light with the excitation wavelength fed back as a reference signal to provide wavelength calibration of the tunable laser light source; at least one optical measurement filter adapted to measure the sample specific response light signal produced by the optical sensor, wherein the optical reference filter and the at least one optical measurement filter are thermally coupled to maintain a constant wavelength relationship between the filter characteristics of the optical filters.

Contamination detection systems, kits, and techniques are described for testing surfaces for the presence of hazardous contaminants, while minimizing user exposure to these contaminants. Even trace amounts of contaminants can be detected. A collection kit provides a swab that is simple to use, easy to hold and grip, allows the user to swab large areas of a surface, and keeps the user's hands away from the surface being tested. The kit also provides open and closed fluid transfer mechanism to transfer the collected fluid to a detection device while minimizing user exposure to hazardous contaminants in the collected fluid. Contamination detection kits can rapidly collect and detect hazardous drugs, including trace amounts of antineoplastic agents, in healthcare settings at the site of contamination.

A three-dimensional porous photonic structure, whose internal pore surfaces can be provided with desired surface properties in a spatially selective manner with arbitrary patterns, and methods for making the same are described. When exposed to a fluid (e.g., via immersion or wicking), the fluid can selectively penetrate the regions of the structure with compatible surface properties. Broad applications, for example in security, encryption and document authentication, as well as in areas such as simple microfluidics and diagnostics, are anticipated.

The invention relates to a testing system and related methods for detecting peritonitis or infection in peritoneal dialysate removed from a patient. The testing system can include a fluid sensor apparatus in a fluid line of a peritoneal dialysis cycler through which spent peritoneal dialysate can be pumped. The fluid sensor apparatus can detect one or more markers associated with peritonitis or infection.

The present invention relates to a humidity-sensing structural color emitting laminate and a structural color display device self-powered by triboelectricity including the same, and more specifically to a structural color display device self-powered by triboelectricity, which can directly sense humidity among human body signals and display the same in structural color immediately without a separate power source and without data processing, and a humidity-sensing structural color emitting laminate for implementing the same.

In an embodiment, a method for fabrication of VOC sensor comprises dissolving one or more metal precursors in a reagent to form a solution, adding a reducing agent to precipitate a metal oxide compound, subjecting the solution to acoustic energy, recovering a nanoscale metal oxide, and forming a sensing layer in a chemo-resistance sensor using the nanoscale metal oxide.

A spectral reflectance imaging device for detecting nanoparticle exosome biomarker targets includes an illumination source that illuminates a substrate with a plurality of separate wavelengths of incoherent light. The substrate includes an oxide layer and a binding agent to selectively bind nanoparticle exosome biomarker targets to the substrate. An imaging device bindings the light reflected from or transmitted through the substrate and an image processing system detects the nanoparticle exosome biomarker targets a function of the change in reflective properties of the substrate.

A stimulus-responsive gel material includes: a polymeric material containing as constituent components, a first monomer having a chemical structure represented by the following formula (1) and a second monomer having higher hydrophobicity than the first monomer; fine particles having an average particle diameter of 10 nm or more and 1000 nm or less; and a solvent, wherein the wavelength of a reflected light from the material changes according to the concentration of salt to come in contact with the material. ##STR00001## In the formula (1), R is a substituent containing at least a carbon atom and a hydrogen atom, and when the number of carbon atoms in R is denoted by n and the number of oxygen atoms in R is denoted by m, n-m is an integer of 3 or more.