Abstract: An organic-inorganic composite catalyst wherein the organic-inorganic composite catalyst includes a porous carbonaceous particle, a first compound; and a metal oxide particle, wherein the first compound and the metal oxide particle are supported on the porous carbonaceous particle, the first compound contains a polar functional group, an anion, or a combination thereof, the metal oxide is represented by the formula MaOb, wherein 0<a?4, 0<b?5, and M is a metal of Groups 2 to 16 of the Periodic Table of Elements, or a combination thereof, and the organic-inorganic composite catalyst is configured to remove a second compound from an unpurified air flow including the second compound.

Abstract: A photocatalyst including a first metal oxide; and a second metal oxide, wherein the first metal oxide is disposed on a surface of the second metal oxide, and wherein absorbance of the photocatalyst in a wavelength region of about 200 nanometers (nm) to about 600 nm is about 5% to about 50% greater than an absorbance of TiO2 in the wavelength region of about 200 nm to about 600 nm.

Abstract: A composite photocatalyst, a photocatalytic filter for air purification, and an air purification device that includes the photocatalytic filter. The composite photocatalyst includes: a first metal oxide particle; and second metal oxide particles arranged on a surface of the first metal oxide particle, wherein specific surface area of the second metal oxide particles is greater than specific surface area of the first metal oxide particle, and bandgap energy of the second metal oxide particles is greater than bandgap energy of the first metal oxide particle. The composite photocatalyst structure may degrade and remove gaseous pollutants under room temperature and atmospheric pressure conditions. The composite photocatalyst may be applied to various indoor and outdoor air purification systems in the form of a photocatalytic filter.

Abstract: Disclosed is a novel piperidinedione compound of Formula 1 or a pharmaceutically acceptable salt thereof. Uses of the novel piperidinedione compound of Formula 1 or a pharmaceutically acceptable salt thereof as an anti-tumor agent or an immunomodulatory for treatment of CRBN protein-mediated diseases are disclosed. Also the compound or salt thereof can be used an E3 ligase binder in a PROTAC compound comprising a protein of interest ligand, a linker and an E3 ligase binder.

Abstract: A material for removing a contaminant, the material including an adsorption material for adsorption of a contaminant and a decomposition material for decomposition of a contaminant, wherein the adsorption material and the decomposition material are complexed with each other, and a contaminant decomposition onset temperature of the decomposition material is equal to or lower than a contaminant desorption onset temperature of the adsorption material.

Abstract: A ceramic catalyst filter, a filtering system including the same, and a method of manufacturing the same. The ceramic catalyst filter includes: a single body ceramic filter including a first surface for blocking a first material and a second surface for removing the second material passing through the first surface; and a photocatalyst thin film including nanometer-scale grains coated on a surface of the ceramic filter.

Abstract: A composite photocatalyst, a photocatalytic filter for air purification, and an air purification device that includes the photocatalytic filter. The composite photocatalyst includes: a first metal oxide particle; and second metal oxide particles arranged on a surface of the first metal oxide particle, wherein specific surface area of the second metal oxide particles is greater than specific surface area of the first metal oxide particle, and bandgap energy of the second metal oxide particles is greater than bandgap energy of the first metal oxide particle. The composite photocatalyst structure may degrade and remove gaseous pollutants under room temperature and atmospheric pressure conditions. The composite photocatalyst may be applied to various indoor and outdoor air purification systems in the form of a photocatalytic filter.

Abstract: A filter and a filter system including the filter. The filter includes a porous filter frame having a first upstream-side surface, and a second downstream-side surface based on a thickness direction, the porous filter frame filtering particulate matter. A copper material layer is disposed on at least a portion of the first upstream-side surface of the filter frame.

Abstract: A photocatalyst for air purification, a photocatalyst film including the photocatalyst, and an air purification device including the photocatalyst. The photocatalyst for air purification includes: a first metal oxide particle having ultraviolet absorptivity, and fluorine bound to a surface of the first metal oxide particle; second metal oxide particles present on the surface of the first metal oxide particle. The use of the photocatalyst for air purification to remove or degrade volatile organic compounds (VOCs) and viruses.

Abstract: A process apparatus includes a gas supplier which supplies a reaction gas having a constant concentration, and a processor which performs a predetermined process by the reaction gas supplied from the gas supplier, where the gas supplier includes a reactor which accommodates a solid phase reactant, a heater which applies heat to the solid phase reactant to convert the solid phase reactant to a reaction gas in a gas phase, a gas pump which applies a predetermined pumping pressure to the reactor, and a gas outlet which discharges the reaction gas to the processor.

Abstract: A recombinant microorganism of the genus Escherichia, comprises a genetic modification that increases expression of a nosZ gene encoding NosZ, which is a nitrous oxide reductase, in the recombinant microorganism, wherein the recombinant microorganism comprises a nosR gene encoding NosR, a nosD gene encoding NosD, a nosF gene encoding NosF, a nosY gene encoding NosY, and an apbE gene encoding ApbE, and wherein the nosR gene, the nosD gene, the nosF gene, the nosY gene and the apbE gene are derived from a microorganism of the genus Pseudomonas, the genus Paracoccus, or a combination thereof.

Abstract: A recombinant microorganism including a genetic modification that increases activity of nitric oxide reductase in the recombinant microorganism, a composition for reducing a concentration of nitric oxide in a sample, the composition including the recombinant microorganism, and a method of reducing a concentration of nitric oxide in a sample, are disclosed.

Abstract: A material for removing a contaminant, a filter for removing a contaminant including the material, and a device for removing a contaminant including the filter, the material including an adsorption material for adsorption of a contaminant and a decomposition material for decomposition of a contaminant, wherein the adsorption material and the decomposition material are complexed with each other, and a contaminant decomposition onset temperature of the decomposition material is equal to or lower than a contaminant desorption onset temperature of the adsorption material.

Abstract: Provided is a method of reducing a concentration of a fluorine-containing compound in a sample using a biocatalyst and an ionic liquid.

Abstract: Provided are a recombinant microorganism including a genetic modification that increases a pyruvate, phosphate dikinase activity, a method of producing cellulose using the same, and a method of producing a microorganism having enhanced cellulose productivity.

Abstract: Provided is a recombinant microorganism including an exogenous gene encoding a bacterial cytochrome P450 protein or a variant thereof, a composition including the recombinant P450 protein or the variant thereof, which is used for removing CHnF4-n (n is an integer of 0 to 3) in a sample, and a method of reducing a concentration of CHnF4-n in the sample.

Abstract: Provided are an exhaust gas decomposition system, a complex exhaust gas decomposition system, and a method of decomposing an exhaust gas, wherein the exhaust gas decomposition system includes at least one of a bioreactor system that includes at least one of a bioreactor vessel; at least one of a first inlet supplying a first fluid into an interior of the vessel; at least one of a first outlet discharging the first fluid to an exterior of the vessel; at least one of a second inlet supplying a second fluid into the interior of the vessel; at least one of a second outlet discharging the second fluid to the exterior of the vessel; and at least one of a sparger located in the interior of the vessel and connected to the second inlet

Abstract: Provided is a linked polynucleotide in which polynucleotides encoding a promoter, an anchoring motif, and a dehalogenase, respectively, are operatively linked to one another; a host cell including the linked polynucleotide; and a method of reducing a concentration of a fluorine-containing compound in a sample by using the host cell.

Abstract: Provided is an acid-tolerant yeast cell, a method of producing an organic acid by using the yeast cell, and a method of producing the yeast cell resistant to acid.

Abstract: An exhaust gas decomposition apparatus or system that includes a bioreactor fluorine-containing compound is decomposed by contact with the first and second fluids in the bioreactor. The first fluid is supplied through a bioreactor inlet and is exhausted through the bioreactor outlet, and moves in a first direction in the bioreactor. The first or second fluid includes a biological catalyst such as an enzyme or recombinant microbe, while the other fluid includes a fluorine-containing compound. As a result, the fluorine-compounds is efficiently biologically remediated by the biological catalyst.