Abstract: A radiation-sensitive composition contains: (A) a polymer including a structural unit (U) represented by the following formula (1); and (B) a radiation-sensitive acid-generator formed of an onium cation having at least one group Rf1 selected from the group consisting of a fluoroalkyl group and a fluoro group (excepting a fluoro group in the fluoroalkyl group) and an organic anion having an iodine atom. In formula (1), R1 represents a hydrogen atom, a methyl group, or the like. X1 represents a single bond, an ether bond, an ester bond, or the like. Ar1 represents a cyclic group bound to X1 via an aromatic ring. A hydroxy group or group —ORY is bound to an atom adjacent to the atom bound to X1, among the atoms forming the aromatic group in Ar1. RY represents an acid-releasable group.

Abstract: A photosensitive resin composition includes a polymer (A), a photoacid generator (B), and an organic solvent (C). The polymer (A) includes: a structural unit having a phenolic hydroxy group; and a (meth)acrylate-derived structural unit having an acid-dissociable group. The organic solvent (C) includes 3-ethoxyethyl propionate. A solid content concentration of the photosensitive resin composition is 30 mass % or more.

Abstract: An object of the present invention is to provide a photosensitive resin composition that can form an insulating film having low dielectric constant and low dielectric loss tangent and undergoing small changes in elongation properties in response to changes in environmental temperature. The photosensitive resin composition of the present invention contains: a polymer (A) having a structural unit (a1) represented by Formula (a1); a crosslinking agent (B); a photocation generator (C); and a compound (D) represented by Formula (D).

Abstract: Provided is a method of producing a gene-modified T cell population, including mixing a cell population containing T cells with beads each having bound thereto a virus containing a target gene to introduce the target gene into each of the cells of the cell population, wherein the cell population containing the T cells is cultured in a solution containing a CD3 signal activator that is present without being immobilized on a solid phase.

Abstract: Provided is a polymer having repeating units composed of only repeating units represented by the following Formula (1). —N(R?)—R—N(R?)— is a structure derived from a dimer diamine which is unsubstituted or substituted with a substituent, and R?, R1, and R2 are each independently a hydrogen atom, a halogen atom, a hydrocarbon group having 1 to 20 carbon atoms which is unsubstituted or substituted with a substituent, or a heterocyclic aromatic group having 3 to 20 carbon atoms which is unsubstituted or substituted with a substituent.

Abstract: A composition includes a polymer containing a repeating unit represented by Formula (1). —N(R?)—R3—N(R?)— is a structure derived from a dimer diamine that is unsubstituted or substituted by a substituent, R?, R1, and R2 each are independently a hydrogen atom, a halogen atom, a hydrocarbon group that is unsubstituted or substituted by a substituent and has 1 to 20 carbon atoms, a heterocyclic aliphatic group that is unsubstituted or substituted by a substituent and has 3 to 20 carbon atoms, or a heterocyclic aromatic group that is unsubstituted or substituted by a substituent and has 3 to 20 carbon atoms, and —NR1R2 may be a nitrogen-containing heterocyclic group which has 5 to 20 ring-constituting atoms and in which R1 and R2 are bonded to each other.

Abstract: A radiation-sensitive resin composition includes a polymer, solubility of which in a developer solution is capable of being altered by an action of an acid, and which has a first structural unit represented by the following formula (1); a radiation-sensitive acid generating agent; and an acid diffusion control agent having a monovalent radiation-sensitive onium cation and a monovalent organic acid anion.

Abstract: A radiation-sensitive resin composition includes: a first polymer and a compound. A solubility of the first polymer in a developer solution is capable of being altered by an action of an acid. The first polymer includes: a first structural unit containing a partial structure obtained by substituting a hydrogen atom of a carboxy group, a phenolic hydroxy group, or an amide group with a group represented by the following formula (1); and a second structural unit containing a phenolic hydroxy group. The compound includes: a monovalent radiation-sensitive onium cation containing an aromatic ring obtained by substituting at least one hydrogen atom with a fluorine atom or a fluorine atom-containing group; and a monovalent organic acid anion.

Abstract: A method for manufacturing a semiconductor substrate includes: applying a composition for forming a resist underlayer film directly or indirectly to a substrate to form a resist underlayer film; applying a composition for forming a resist film to the resist underlayer film to form a resist film; exposing the resist film to radiation; and developing at least the exposed resist film. The composition for forming a resist underlayer film includes a polymer and a solvent. The polymer includes a repeating unit (1) which includes an organic sulfonic acid anion moiety and an onium cation moiety.

Abstract: A radiation-sensitive resin composition includes: a resin including a structural unit (A) represented by formula (1) and a structural unit (B) having an acid-dissociable group; a radiation-sensitive acid generator; and a solvent. R1 is a halogen atom-substituted or unsubstituted monovalent hydrocarbon group having 1 to 20 carbon atoms; X is —O— or —S—; La1 is a halogen atom-substituted or unsubstituted divalent hydrocarbon group having 1 to 10 carbon atoms, and RP is a monovalent organic group having at least one structure selected from the group consisting of a lactone structure, a cyclic carbonate structure, and a sultone structure.

Abstract: The composition contains: a compound which has a group represented by formula (1); and a solvent. In the formula (1), R1 and R2 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring atoms or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; R3 represents a hydrogen atom or a substituted or unsubstituted monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms; and * denotes a bonding site to a part other than the group represented by the following formula (1) in the compound.

Abstract: A radiation-sensitive resin composition contains: a polymer that includes a structural unit including an acid-labile group; a radiation-sensitive acid generator; and a compound represented by the following formula (1). In the following formula (1), R1 represents a hydrogen atom or a monovalent organic group having 1 to 30 carbon atoms; and Xn+ represents a radiation-sensitive onium cation having a valency of n, wherein n is an integer of 1 to 3. It is preferable that R1 in the following formula (1) represents an organic group, and that the organic group has a ring structure. It is preferable that R1 in the following formula (1) represents an organic group, and that the organic group is an acid-labile group. Xn+ in the following formula (1) preferably represents a sulfonium cation, an iodonium cation, or a combination thereof.

Abstract: A radiation-sensitive resin composition includes: an onium salt compound represented by formula (1), a resin including a structural unit having an acid-dissociable group, and an alcohol-based solvent having a boiling point of 90° C. or higher. R1 is a substituted or unsubstituted monovalent hydrocarbon group or a group including a divalent hetero atom-containing group between two adjacent carbon atoms of the hydrocarbon group; R2 and R3 are each independently a hydrogen atom or a monovalent hydrocarbon group, one of Rf11 and Rf12 is a fluorine atom, and the other is a fluorine atom or a monovalent fluorinated hydrocarbon group, m1 is an integer of 1 to 3; m2 is an integer of 0 to 8; and Z1+ represents a monovalent radiation-sensitive onium cation.

Abstract: A radiation-sensitive resin composition includes: a first onium salt compound represented by formula (1); a second onium salt compound represented by formula (2); a resin including an acid-dissociable group; and a solvent. R1 is a substituted or unsubstituted monovalent hydrocarbon group or the like; R2 and R3 are each independently a hydrogen atom, a fluorine atom, or the like; and Z+ represents a monovalent radiation-sensitive onium cation. R4 is a monovalent organic group; one of Rf21 and Rf22 is a fluorine atom, and the other is a fluorine atom or a monovalent fluorinated hydrocarbon group; Ar is a monovalent organic group including an aromatic ring; R5, R6, R7, and R8 each independently represent a hydrogen atom, a hydroxy group, a halogen atom, or a monovalent organic group; and X is a single bond or a divalent hetero atom-containing group.

Abstract: A radiation-sensitive resin composition includes: a first onium salt compound represented by formula (1); a second onium salt compound represented by formula (2); a resin including a structural unit having an acid-dissociable group; and a solvent. R1 is a substituted or unsubstituted monovalent hydrocarbon group or the like; R2 and R3 are each independently a hydrogen atom or a monovalent hydrocarbon group; one of Rf11 and Rf12 is a fluorine atom, and the other is a fluorine atom or a monovalent fluorinated hydrocarbon group; and Z1+ represents a monovalent radiation-sensitive onium cation. R4 is a monovalent organic group including a cyclic structure; Rf21 and Rf22 each independently represent a fluorine atom or a monovalent fluorinated hydrocarbon group; and Z2+ represents a monovalent radiation-sensitive onium cation.

Abstract: A radiation-sensitive resin composition includes: a first onium salt compound represented by formula (1); a second onium salt compound represented by formula (2); a resin including a structural unit having an acid-dissociable group; and a solvent. R1 is a substituted or unsubstituted monovalent hydrocarbon group or a group including a divalent hetero atom-containing group between two adjacent carbon atoms of the hydrocarbon group; R2 and R3 are each independently a hydrogen atom, a fluorine atom, or the like; and one of Rf11 and Rf12 is a fluorine atom, and the other is a hydrogen atom, a fluorine atom, or a monovalent fluorinated hydrocarbon group. R4 is a monovalent organic group in which neither a fluorine atom nor a fluorinated hydrocarbon group is bonded to an atom adjacent to the sulfur atom.

Abstract: A carrier which may have excellent pressure resistance, and even when a protein ligand is not immobilized thereon, a high dynamic binding capacity to a target substance, and a high performance of separating a target substance from a biological sample. Such a carrier may include a polymer having a crosslinked structure containing a divalent group of formula (1): wherein R1 to R4 are independently a single bond or divalent hydrocarbon group, R5 and R6 are independently H or a hydrocarbon group, X is a thio group, sulfinyl group, sulfonyl group, oxy group, >N(—R31), >Si(—R32)2, >P(—R33), >P(?O)(—R34), >B(—R35), or >C(—R36)2 (R31 to R36 independently being H or hydrocarbon group), and * is a bond, provided that when both R1 and R3 or both R2 and R4 are a divalent hydrocarbon group, respectively, R1 and R3 or R2 and R4 may form a ring together with an adjacent carbon atom.

Abstract: To provide a novel technique with which the generation of aggregates over time in a dispersion liquid can be suppressed and a target substance can be detected with high sensitivity even if latex particles that have been stored are used. A method for storing in a container a latex particle dispersion liquid in which latex particles for an extracorporeal diagnostic agent are dispersed, the latex particles having a volume average particle size of 10 to 1000 nm and including a polymer containing 70 to 100% by mass of monomer units each derived from a monomer having an aryl group relative to the total monomer units, which is characterized in that the particle dispersion liquid is stored in the container by setting a ratio of a volume of a void space obtained by excluding a volume occupied by the particle dispersion liquid from an internal volume of the container to 0 to 25% (v/v) relative to the internal volume of the container.

Abstract: A method for producing a semiconductor substrate includes: applying a silicon-containing composition directly or indirectly to a substrate to form a silicon-containing film; applying a composition for forming a resist film to the silicon-containing film to form a resist film; exposing the resist film to radiation; and developing at least the exposed resist film. The silicon-containing composition includes: a silicon-containing compound; a polymer including a structural unit represented by formula (1); and a solvent. A content of the silicon-containing compound in the silicon-containing composition relative to 100% by mass of components other than the solvent in the silicon-containing composition is from 50% to 99.9% by mass. RA1 is a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms; and RA2 is a monovalent organic group having 1 to 20 carbon atoms.

Abstract: An enzyme sensor may be configured to measure a measurement target substance included in a secretion of a living body. The enzyme sensor may include a layered structure including, in this order, (a) an absorber layer configured to absorb the secretion, (b) an enzyme layer containing an enzyme, (c) a mediator layer, and (d) an electrode part. The absorber layer may include a polymeric material having a chemically bound crosslinked structure.