Disclosed herein are embodiments of compositions for gas sensing and sensors utilizing the same. In one embodiment, a composition comprises carbon nanotubes and polymer-coated metal nanoparticles bound to the carbon nanotubes.

A composite material of polyurethane foam having a layer of reduced graphene oxide and polystyrene is described. This composite material may be made by contacting a polyurethane foam with a suspension of reduced graphene oxide, drying, and then irradiating in the presence of styrene vapor. The composite material has a hydrophobic surface that may be exploited for separating a nonpolar phase, such as oil, from an aqueous solution.

A device, system, and method for removing a component from a gas are disclosed. A bead consisting of a core and an outer layer is provided. The outer layer consists of a first impermeable material. The core consists of a second material. A carrier gas, containing a vapor, is passed across the bead, desublimating or desublimating and condensing a portion of the vapor onto the bead. In some embodiments, the beads are passed into the column at a first temperature and the carrier gas is passed across the beads. A portion of the vapor desublimates or desublimates and condenses onto the beads as a solid product, causing the beads to expand in volume as they are warmed to a second temperature. The beads with the solid product are passed out of the column.

An article that can be used for biomaterial capture comprises (a) a porous substrate; and (b) borne on the porous substrate, a polymer comprising interpolymerized units of at least one monomer consisting of (1) at least one monovalent ethylenically unsaturated group, (2) at least one monovalent ligand functional group selected from acidic groups, basic groups other than guanidino, and salts thereof, and (3) a multivalent spacer group that is directly bonded to the monovalent groups so as to link at least one ethylenically unsaturated group and at least one ligand functional group by a chain of at least six catenated atoms.

The present disclosure is directed to a coating process for chromatographic surfaces. Embodiments of the present disclosure feature a two-step, vapor-liquid phase organosilane deposition method for creating a hydrophilic, non-ionic surface in a chromatographic system.

Provided is a blood purification device including a porous molded body that has a high phosphorus adsorption capacity and that can be used safely. A blood purification device includes a porous molded body containing an inorganic ion-adsorbing material and is characterized by the following: said blood purification device satisfies the relationship B=−0.02 A+2.175±0.185 (74≤A≤94) when the moisture content of the porous molded body is denoted by A and the bulk density is denoted by B; and the number of fine particles having a size of 10 μm or more is 25 or less and the number of fine particles having a size of 25 μm or more is 3 or less in 1 mL of a physiological saline solution for injection both three months and six months after said physiological saline solution for injection is sealed in the blood purification device.

A nucleic acid collection column collects a nucleic acid from a liquid sample containing the nucleic acid. The nucleic acid collection column includes a sample injection portion having an opening into which the liquid sample containing the nucleic acid is injected, a support adsorption portion that houses a support for adsorbing the nucleic acid and in which the nucleic acid is adsorbed on the support, and a discharge portion that discharges a liquid passed through the support adsorption portion. The support includes aluminum oxide having a surface where a water-soluble neutral polymer is adsorbed. A space that houses the support in the support adsorption portion has a cylindrical shape, and has a volume of 0.13 μL or more and 13.5 μL or less. An aspect ratio (d.sub.1/d.sub.2) of the space satisfies 1.0≤d.sub.1/d.sub.2<15.0.

Provided are sequestering agents for sequestering non-water moieties from an aqueous solution. The sequestering agents may comprise a detergent; and a polymer operable to stabilize formation of a detergent micelle thereby causing the detergent and polymer to self-assemble into a nanonet upon exposure to the aqueous solution. Also provided are kits therefore and methods for use of the sequestering agents and kits.

Provided are a ligand-bearing substrate which has a surface at least partially coated with a polymer (P3) containing structural units represented by the formulae (1a) and (1b) (in the formulae, R.sup.1, R.sup.2, X, Y, L, Q.sup.1, Q.sup.2, Q.sup.3, m1, m2 and n are as described in the claims and description); a raw material for such a substrate; and a method for producing such substrates.

The present disclosure provides an apparatus for sampling at least one analyte from a sampling fluid. The apparatus includes: a solid-phase microextraction (SPME) sampling instrument. A connector is attached to the SPME sampling instrument and is coupleable to an aerial drone. The apparatus includes a protective cover that is sized and shaped to at least partially surround the SPME sampling instrument. The SPME sampling instrument and the protective cover are movable in relation to each other between a protecting configuration and a sampling configuration. The SPME sampling instrument and the protective cover are (i) biased in the protecting configuration when the density of the fluid surrounding the SPME sampling instrument is less than the density of the sampling fluid; and (ii) biased in the sampling configuration when the density of the fluid surrounding the SPME sampling instrument is equal to or greater than the density of the sampling fluid.