Provided herein are devices, systems, and methods for capturing toxic pollutants, such as polycyclic aromatic hydrocarbons. Certain embodiments of the present disclosure are related to a pollutant-absorbing material that includes an absorbent compound, such as sodium copper chlorophyllin, capable of binding to and capturing a toxic pollutant, and methods of making and using the material for the capture of toxic pollutants. The pollutant-absorbing material can be incorporated into an article worn by a person, such as a shirt or a facemask.

A highly adsorptive structure, includes: a substrate; and a metal-organic framework (MOF) comprising a plurality of metal atoms coordinated to a plurality of organic spacer molecules; wherein the MOF is coupled to at least one surface of the substrate, wherein the MOF is adapted for adsorbing and desorbing a refrigerant under predetermined thermodynamic conditions. The refrigerant includes one or more materials selected from the group consisting of: acid halides, alcohols, aldehydes, amines, chlorofluorocarbons, esters, ethers, fluorocarbons, perfluorocarbons, halocarbons, halogenated aldehydes, halogenated amines, halogenated hydrocarbons, halomethanes, hydrocarbons, hydrochlorofluorocarbons, hydrofluoroethers, hydrofluoroolefins, inorganic gases, ketones, nitrocarbon compounds, noble gases, organochlorine compounds, organofluorine compounds, organophosphorous compounds, organosilicon compounds, oxide gases, refrigerant blends and thiols.

A core-shell type amine-based carbon dioxide adsorbent is described, including a chelating agent resistant to oxygen and sulfur dioxide, to inhibit oxidative decomposition of amine. As a core, a porous support is employed on which an amine compound is immobilized, and, as a shell, an amine layer resistant to inactivity by sulfur dioxide is utilized. Such adsorbent exhibits high oxidation resistance because the chelating agent functions to remove a variety of transition metal impurities catalytically acting on amine oxidation. In addition, the sulfur dioxide-resistant amine layer of the shell selectively adsorbs sulfur dioxide to protect the amine compound of the core and, at the same time, the amine compound of the core selectively adsorbs only carbon dioxide. Sulfur dioxide adsorbed on the shell is readily desorbable therefrom at about 110° C. and thus remarkably improved regeneration stability is obtained during temperature-swing adsorption (TSA) processes in which sulfur dioxide is present.

LC techniques are disclosed. The LC technique includes providing a liquid chromatography system having a coated metallic fluid-contacting element, and transporting a fluid to contact the coated metallic fluid contacting element. Conditions for the transporting of the fluid are selected from the group consisting of the temperature of the fluid being greater than 150 degree Celsius, pressure urging the fluid being greater than 60 MPa, the fluid having a protein-containing analyte incompatible with one of titanium and polyether ether ketone, the fluid having a chelating agent incompatible with the one or both of the titanium or the polyether ether ketone.

A metal trap for an FCC catalyst include pre-formed microspheres impregnated with a salt of calcium and/or magnesium and an organic acid salt of a rare earth element.

A dual ligand sol-gel sorbent and method of manufacture is provided herein. The dual ligand sol-gel sorbent provides superior enrichment effects through simultaneous exploitation of superhydrophobicity of one of the ligands and the ability of the other ligand to undergo - interaction with hydrophobic aromatic analytes. Sorbent performance is enhanced both in terms of analyte enrichment and sorbent stability, such as pH stability and solvent stability.

Magnetic and non-magnetic microparticle binding surfaces for the simple, cost-effective and automatable depletion of sample interferences within the assay blocking threshold and enrichment of biomarkers are provided, as are methods and compositions for their preparation and use. The binding surfaces may comprise non-magnetic, magnetic, paramagnetic, and superparamagnetic microparticles, or combinations thereof. The methods include methods for making microparticulate binding surfaces that consist of binders, binding partners, capture moieties, or combinations thereof for multi-functional sample depletion and enrichment. Specific examples employing antibodies or fragments thereof are provided, as well as strepavidin-coated microparticles and microparticles coupled with capture moieties such as immunoglobulins. Other examples couple ligands, enzymes, and proteins, or other biologicals, polymers and chemicals commonly used in the diagnostic test formulation or design. Further provided are binding surfaces consisting of a plurality of microparticles and methods for making them. Use of the methods and compositions in connection with the depletion and enrichment of a wide variety of interferences and biomarkers is provided, particularly for use in primary blood collection tubes, secondary transfer tubes and challenging sample types such as urine, saliva and stool.

A highly selective carbon monoxide adsorbent and a method of preparing the highly selective carbon monoxide adsorbent are provided. The highly selective carbon monoxide adsorbent includes a boehmite or pseudo-boehmite in which a copper compound is dispersed.

A method of binding a target metal in solution. The method of binding a target metal comprises contacting a solution containing i) a target metal with ii) an encapsulated exudate of a culture of algal flagellate, or a fraction thereof; or an encapsulated dried Euglena biomass or a fraction thereof, to form a complex between the target metal, and the encapsulated exudate or fraction thereof, or the encapsulated dried Euglena biomass or the fraction thereof; and optionally separating the complex from the solution. The disclosure also relates to a biosorbent element, as well as methods of using same in binding a metal in solution.

A process for separations and recovery from mixtures via specific adsorption using high-surface area, flexible silica-based nanostructured gel adsorbents and articles of manufacture relating to same.