Disclosed herein is a composite material suitable for inhibiting biofilm growth, the composite material comprising a substrate material and a random copolymeric material covalently bonded to a surface of the substrate material. The random copolymer contains repeating units having at least one functional group bearing a cationic charge and repeating units having at least one functional group bearing an anionic charge, where the repeating units are derived from compatible monomers that belong to different monomer classes having differing polymerisation kinetics. Specifically, the random copolymeric material is poly(AMPTMA-ran-SPM), wherein AMPTMA is (3-acrylamidopropyl) trimethylammonium chloride and SPM is 3-sulfopropyl methacrylate potassium. Also disclosed are methods of manufacturing said material and applications thereof.

Disclosed herein is a composite material suitable for inhibiting biofilm growth, the composite material comprising a substrate material and a random copolymeric material covalently bonded to a surface of the substrate material. The random copolymer contains repeating units having at least one functional group bearing a cationic charge and repeating units having at least one functional group bearing an anionic charge, where the repeating units are derived from compatible monomers that belong to different monomer classes having differing polymerisation kinetics. Specifically, the random copolymeric material is poly(AMPTMA-ran-SPM), wherein AMPTMA is (3-acrylamidopropyl) trimethylammonium chloride and SPM is 3-sulfopropyl methacrylate potassium. Also disclosed are methods of manufacturing said material and applications thereof.

Provided is an active energy ray-curable aqueous ink which contains water and a curable substance and curable by an active energy ray. The curable substance contains a bifunctional polymerizable monomer represented by the following General Formula (1):

##STR00001## wherein, R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a divalent saturated hydrocarbon group having 1 to 5 carbon atoms and L is a divalent saturated hydrocarbon group which may contain an ether bond, an amide bond, a carbonyl bond, a sulfone bond or a sulfonamide bond.

Provided is an active energy ray-curable aqueous ink which contains water and a curable substance and curable by an active energy ray. The curable substance contains a bifunctional polymerizable monomer represented by the following General Formula (1):

##STR00001## wherein, R.sub.1 is a hydrogen atom or a methyl group, R.sub.2 is a divalent saturated hydrocarbon group having 1 to 5 carbon atoms and L is a divalent saturated hydrocarbon group which may contain an ether bond, an amide bond, a carbonyl bond, a sulfone bond or a sulfonamide bond.

A photosensitive resin composition and an electronic apparatus including the same are provided. The photosensitive resin composition includes: a first unit including one or more acryloyl groups, a second unit including one or more epoxy groups, and a third unit including at least one hydrophilic group, wherein a ratio of the equivalent weight of the acryloyl group to the equivalent weight of the epoxy group is 2:1 or more.

A photosensitive resin composition and an electronic apparatus including the same are provided. The photosensitive resin composition includes: a first unit including one or more acryloyl groups, a second unit including one or more epoxy groups, and a third unit including at least one hydrophilic group, wherein a ratio of the equivalent weight of the acryloyl group to the equivalent weight of the epoxy group is 2:1 or more.

A photosensitive resin composition and an electronic apparatus including the same are provided. The photosensitive resin composition includes: a first unit including one or more acryloyl groups, a second unit including one or more epoxy groups, and a third unit including at least one hydrophilic group, wherein a ratio of the equivalent weight of the acryloyl group to the equivalent weight of the epoxy group is 2:1 or more.

Biotin-containing monomers, polymeric materials formed from the biotin-containing monomers, articles containing the polymeric materials, methods of making the articles, and methods of using the articles are provided. The articles can be used, for example, for affinity capture of biotin-binding proteins, including biotin-binding fusion proteins (i.e., a biotin-binding protein fused to another biomaterial). Articles that contain captured biotin-binding proteins can be further used for affinity capture of various biotin-containing biomaterials such as biotinylated proteins. The articles can also be used, for example, for affinity capture of biotin-binding fusion proteins where the fusion protein includes, for example, an enzyme or antibody.

Biotin-containing monomers, polymeric materials formed from the biotin-containing monomers, articles containing the polymeric materials, methods of making the articles, and methods of using the articles are provided. The articles can be used, for example, for affinity capture of biotin-binding proteins, including biotin-binding fusion proteins (i.e., a biotin-binding protein fused to another biomaterial). Articles that contain captured biotin-binding proteins can be further used for affinity capture of various biotin-containing biomaterials such as biotinylated proteins. The articles can also be used, for example, for affinity capture of biotin-binding fusion proteins where the fusion protein includes, for example, an enzyme or antibody.

The active energy ray-curable liquid composition according to the present disclosure is an active energy ray-curable liquid composition that contains water and a curable substance and is curable with an active energy ray, in which the curable substance contains a monofunctional polymerizable monomer having a structure represented by the Formula (1);

##STR00001##

in Formula (1), R1 represents a hydrogen atom or a saturated hydrocarbon group, R2 represents a saturated hydrocarbon group that has at least one of a hydroxyl group or an amide bond and may contain a heteroatom, R3 represents a hydrogen atom or a methyl group, R1 and R2 may be bonded together to form an aliphatic heterocycle together with a nitrogen atom substituted with R1 and R2 in a case where R1 represents a saturated hydrocarbon group, and a total number of carbon atoms of the saturated hydrocarbon groups represented by R1 and R2 is 5 or more.