Toray Industries, Inc.

Takahiro Motoshiromizu

Masateru Ito

Shota Sekiguchi

Jun Sakamoto

Hiroji Kojima

Tomonori Kawakami

Mayumi Matsumoto

Kouichi Dan

Kazuhiro Matsuda

Ken Suzuki

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.

Cerium oxide nanoparticle, dispersion body, oxidant, antioxidant, and method of producing cerium oxide nanoparticle

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.

Cerium oxide nanoparticle, decomposition method of nucleic acid, decomposition method of polypeptide, method of producing cerium oxide nanoparticle, oxidizing agent, antioxidant, antifungal agent, and anti-virus agent

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 &#x3bc;L or more and 13.5 &#x3bc;L or less. An aspect ratio (d/d) of the space satisfies 1.0&#x2264;d/d&#x3c;15.0.

Nucleic acid collection column

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 &#x3bc;m, as measured when a sample of the polyester resin composition is melt at 300&#xb0; C. for 60 minutes under a nitrogen atmosphere, quickly cooled and thermally treated at 220&#xb0; 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&#xb0; C. under an atmosphere with an oxygen concentration of 1% is 5% or less.

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Mishima, Japan

Takahiro Motoshiromizu