Abstract: The disclosure provides a kit for detecting microsatellite instability and a method therefor. The kit includes a negative control, a plurality of qPCR reaction solutions, a qPCR premix and a sterile enzyme-free water; the plurality of qPCR reaction solutions includes 6 pairs of upstream primers and downstream primers of which the MSI mutation site is amplified, and a reference probe for the internal reference and a detection probe for the mutation site. The difference between the amplification of the gene and the gene at the mutation site of the samples and the negative control is used to detect the microsatellite instability. The method and kit as provided is easy and simple without the need of normal tissues being a control, and the need to open the cap. By doing so, aerosol pollution is avoided and sample supplies are conserved.

Abstract: A system for battery charging includes at least one processor; and at least one memory including instructions which when executed causes the at least one processor to a least: determine, based on a first output from a charging source and a second output from a pressure sensor, a differential pressure with respect to charge. Such systems are applicable to methods of charging batteries and can be used in charging batteries in electric cars and mobile devices.

Abstract: Example implementations include a sensor device with a superhydrophobic sensor panel having an abraded first planar surface and a second planar surface opposite to the first planar surface, and a metallic heating element adjacent to the second planar surface of the superhydrophobic sensor panel. Example implementations also include a method of detecting a concentration of heavy metal ions in a solution, by separating a target solute of a target microdroplet from the target micropdroplet, identifying a distribution area of at least one heavy metal ion in an image of the target solute, generating a heavy metal ion concentration quantity based on the distribution area, generating a composite image including an indication of the distribution area, and presenting an indication of at least one of the heavy metal ion concentration quantity and the composite heavy metal ion image.

Abstract: In one aspect, methods of making a polycrystalline film are described herein. In some embodiments, a method of making a polycrystalline film comprises providing a nanoparticle composition comprising crystalline nanoparticles of copper-zinc-tin-chalcogenide disposed in a liquid carrier, wherein inorganic ligands are associated with surfaces of the copper-zinc-tin-chalcogenide nanoparticles, the inorganic ligands formed of a metal chalcogenide complex. The method further comprises depositing the nanoparticle composition on a substrate surface and removing the liquid carrier to provide the polycrystalline film of copper-zinc-tin-chalcogenide.