Abstract: A cerium oxide nanoparticle whose surface is covered with a vinyl polymer has a heterocyclic amine skeleton such as piperazine, pyridine, imidazole, or carbazole or with a polyamide having a heterocyclic amine skeleton such as piperazine, pyridine, imidazole, or carbazole; and a decomposition method of a nucleic acid or a polypeptide by using the cerium oxide nanoparticle.

Abstract: A pharmaceutical composition includes a drug and a temperature-responsive ionic liquid, wherein an anion in the temperature-responsive ionic liquid includes at least one selected from the group consisting of an aromatic carboxylate ion and an aromatic sulfonate ion, and is an anion represented by formula (I) and/or formula (II): wherein, in formula (II), R1 represents a hydrogen atom or an acyl group and R2 represents an alkyl group optionally substituted with a halogen atom, a halogen atom or a sulfo group.

Abstract: This disclosure relates to a nucleic acid collection column that 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 ?L or more and 13.5 ?L or less. An aspect ratio (d1/d2) of the space satisfies 1.0?d1/d2<15.0.

Abstract: A cerium oxide nanoparticle is produced by adding an oxidant to a solution comprising a boron compound represented by formula (I) and a cerium (III) ion: BRn(OR?)3-n??(I) wherein n represents an integer of 0 to 2, R represents any of an alkyl group having 1 to 4 carbon atoms, a phenyl group, and a tolyl group, and R? represents any of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group, and a tolyl group, and when a plurality of Rs or of R's are present, the plurality of Rs or of R's are optionally the same or different.

Abstract: A cerium oxide nanoparticle is produced by mixing a solution of an aromatic heterocyclic compound having no substituent or at least one substituent selected from the group consisting of a methyl group, an ethyl group, an amino group, an aminomethyl group, a monomethylamino group, a dimethylamino group, and a cyano group and containing 2 to 8 carbon atoms and 1 to 4 nitrogen atoms in a ring structure of the aromatic heterocyclic compound, with a solution containing a cerium (III) ion or with a cerium (III) salt, followed by addition of an oxidant.

Abstract: A dispersion solution contains a complex of cerium oxide nanoparticle with protein in which a hydrodynamic diameter and zeta potential of the protein are maintained. The dispersion solution is produced by mixing a solution containing the protein with a solution containing a cerium (III) ion or with a cerium (III) salt followed by adding an oxidizing agent thereto.

Abstract: A method of collecting a nucleic acid from a sample containing a nucleic acid using a support of aluminum oxide having a surface where a water-soluble neutral polymer is adsorbed, the method including steps a to c: step a: a step of bringing the support into contact with the sample containing a nucleic acid to adsorb the nucleic acid on the support; step b: a step of bringing the support on which the nucleic acid is adsorbed into contact with a solution A containing 1 mM or more and 40 mM or less of a chelating agent; and step c: after the step b, a step of bringing the support on which the nucleic acid is adsorbed into contact with a solution B containing 50 mM or more of a chelating agent to elute the nucleic acid.

Abstract: A cerium oxide nanoparticle whose surface is covered with a vinyl polymer has a heterocyclic amine skeleton such as piperazine, pyridine, imidazole, or carbazole or with a polyamide having a heterocyclic amine skeleton such as piperazine, pyridine, imidazole, or carbazole; and a decomposition method of a nucleic acid or a polypeptide by using the cerium oxide nanoparticle.

Abstract: 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 ?L or more and 13.5 ?L or less. An aspect ratio (d1/d2) of the space satisfies 1.0?d1/d2<15.0.

Abstract: A polyester resin composition including an ionic liquid that can dissolve an acid component monomer and/or oligomers of a polyester terephthalate, and a copper element that exhibits a reduced amount of production of the acid component monomer and/or oligomers of the polyester. Examples of the ionic liquid include 1-butyl-3-methylimidazolium acetate, 1-butyl-3-methylimidazolium chloride and tetrabutyl ammonium bromide. In one polyester resin composition, the surface roughness Ra of a capture plate is less than 0.150 ?m, as measured when a sample of the polyester resin composition is melt at 300° C. for 60 minutes under a nitrogen atmosphere, quickly cooled and thermally treated at 220° C. for 8 hours to form scattered products which are then attached to the capture plate and a gelation ratio after a 6-hour melting treatment at 300° C. under an atmosphere with an oxygen concentration of 1% is 5% or less.

Abstract: A polyester resin composition exhibits a reduced amount of production of the acid component monomer and/or oligomers of the polyester. In one polyester resin composition, the surface roughness Ra of a capture plate is less than 0.150 ?m, as measured when a sample of the polyester resin composition is melt at 300° C. for 60 minutes under a nitrogen atmosphere, quickly cooled and thermally treated at 220° C. for 8 hours to form scattered products which are then attached to the capture plate. In another polyester resin composition, the production rate of an acid component monomer and/or the production rate of oligomers is/are less than 0.70, as defined by formulas (I) and (II): Production rate of acid component monomer=(amount of produced acid component monomer)/(acid component monomer content)??(I) Production rate of oligomers=(amount of produced oligomers)/(oligomer content)??(II).

Abstract: A film is high in water resistance and degradability and formed mainly of biodegradable resin. The film includes a thermoplastic resin (A), and a filler (B) in an amount of 1 to 70 mass % of the total mass, i.e. 100 mass %, of the film, and having a porosity of 80% or less, a tear strength of 200 mN or less in a direction, and a tensile strength of less than 15 MPa in a direction.