A selective metamaterial absorber and method for fabricating the same is disclosed. The method includes deposing a first metal layer on a first surface of a substrate and on a plurality of nanowires extending outward from the first surface of the substrate, the plurality of nanowires forming an array on the first surface, the substrate further including a second surface opposite the first surface. The first metal layer may be deposed using conformally sputtering. The substrate and the plurality of nanowires may be composed of silicon, and the first metal layer may be composed of tungsten. The first metal layer may be composed of a material having a penetration depth for a wavelength range of interest. The first metal layer may be at least three times thicker than the penetration depth.

Apparatuses and methods for extracting desired chemical species from input flows in a modular unit.

The present invention relates to a process of synthesis of silica-based adsorbents used in the CO.sub.2 capture process in oil fields with expressive volumes of associated CO.sub.2, aiming its subsequent use in processes of producing bioQAV and alcohol from the hydrogenation reaction. Adsorbents obtained based on silica and different metals have a high stability and activity in CO.sub.2 capture, at adsorption and desorption temperatures of 25° C., increasing the density of the silanol groups present in mesoporous silica, conducted by replacing Si in the crystal lattice with various metals. The insertion of elements in the structure is responsible for creating vacancies used to capture CO.sub.2, being characteristic of higher enthalpies involved in the process. Additionally, the exchange of silicon for metals is conducted during the hydrolysis process of the silica precursor, not requiring another step, in addition to being able to be conducted with low-cost precursors, such as chlorides, nitrates and isopropoxides, and an aqueous medium.

Methods for treating water containing a target anion to remove the target anion can include preparing a treatment composition solution that contains a metal treatment agent, adjusting the treatment composition solution to a first pH that is alkaline and then to a second pH that is acidic, and contacting the treatment composition solution with the water that contains the target anion.

Methods are disclosed for treating water containing a target anion to remove the target anion. The methods can include preparing a treatment composition solution that contains a metal treatment agent, adjusting the treatment composition solution to a first pH that is alkaline and then to a second pH that is acidic, and contacting the treatment composition solution with the water that contains the target anion.

The present invention relates to methods or assays for detecting proteins or molecules of interest in a sample. Aptamers specific to the protein of interest are obtained and are then incubated with the sample. If the protein of interest is present in the sample, protein-aptamer conjugates are formed. The incubated sample is then passed through a sorbent material designed to retain proteins and other cellular material whilst allowing free nucleic acid to flow through substantially unimpeded. If aptamer is detected in the output material at levels equivalent to the aptamer concentrations initially, this is indicative that no protein of interest was present in the sample, whereas if no (or potentially reduced) amounts of aptamer is detected in the flow through this is indicative of protein of interest in the sample as this will have bound to the aptamers and been retained by the sorbent material.

Disclosed is a porous ceramic heating element composition and a ceramic heating structure made of the composition, and the composition includes: a mixture including a ceramic mixed powder, which is formed by mixing at least one of an aluminum nitride and a silicon nitride with a silicon carbide powder, and a silicon-based metal powder which is mixed with the ceramic mixed powder; a pore agent, wherein 0.5 parts by weight to 5 parts by weight of the pore agent is mixed with 100 parts by weight of the mixture; and a binder which is mixed with the mixture and maintains the bonding between the ceramic mixed powder and the metal powder. 20 parts by weight to 30 parts by weight of the binder is included in 100 parts by weight of the mixture.

Devices for the separation of components within a fluid are disclosed herein. The device typically includes layers of spacers and separation surfaces. The separation panels have channels with functionalized surfaces to attract and retain components within the fluid. The separation panels include a border (housing) to constrain the fluid.

Various embodiments disclosed relate to extraction of target materials using a CZTS sorbent. A method of extracting a target material from a medium includes contacting a copper zinc tin sulfur (CZTS) sorbent with the target material in the medium including the target material to form a used CZTS sorbent that includes the target material. The method also includes separating the used CZTS sorbent from the medium.

A monolithic metal-organic framework (MOF) composite body is disclosed, comprising: MOF crystallites adhered to each other via a binder comprising MOF; and at least 0.15 vol % nanoparticles encapsulated in the MOF body. The nanoparticles have an average particle size corresponding to an average particle diameter in the range 3-200 nm. The nanoparticles may have photocatalytic activity. The MOF composite body is of use for treating water containing an organic dye, the photocatalytic reaction supported by the photocatalytic nanoparticles being a degradation reaction of the organic dye.