Magnetic particles, each including a core made of a magnetic material, and an insulating coating film which covers a surface of the core made of a magnetic material. The insulating coating film is formed of a sol-gel reaction product of a mixture containing a metal alkoxide and an organic phosphoric acid or a salt thereof.

Provided herein are methods of preparing three-dimensional photonic crystals having tunable optical properties and control over stopband location and width, the three-dimensional photonic crystals comprising nanoparticles and spacer groups.

Provided herein are methods of preparing three-dimensional photonic crystals having tunable optical properties and control over stopband location and width, the three-dimensional photonic crystals comprising nanoparticles and spacer groups.

A method of preparing magnetic powder includes preparing iron powder by a reduction reaction of iron oxide; preparing magnetic powder by heat-treating a molded article prepared by pressure-molding a mixture containing the iron powder, neodymium oxide, boron and calcium at a pressure of 22 MPa or more; and coating an organic fluoride on a surface of the magnetic powder.

A method of preparing magnetic powder includes preparing iron powder by a reduction reaction of iron oxide; preparing magnetic powder by heat-treating a molded article prepared by pressure-molding a mixture containing the iron powder, neodymium oxide, boron and calcium at a pressure of 22 MPa or more; and coating an organic fluoride on a surface of the magnetic powder.

This invention concerns a versatile and simple one-pot method to prepare nanomaterials, and in particular nanoparticles, grafted with an ultra-thin layer of calixarenes by placing at 5 least one oxidized metal with at least one calix[n]arene diazonium salt in the presence of a reducing agent in a solvent, and heating the traction mixture to obtain a metal-based nanomaterial coated with calix[n]arenes. The invention further concerns the coupling of organic molecules or biomolecules to the calixarene-grafted nanomaterials in order to further functionalize the surface of the particles. The metal-based nanomaterial coated with 10 calix[n]arenes can for example be used in immunoassays.

The present invention relates to a composite and a manufacturing method thereof, wherein the composite includes a base powder, an adhesive disposed on the surface of the base powder, and functional particles disposed on the adhesive, wherein the adhesive includes at least one of a fatty primary monoamide and a fatty secondary monoamide.

The present invention relates to a composite and a manufacturing method thereof, wherein the composite includes a base powder, an adhesive disposed on the surface of the base powder, and functional particles disposed on the adhesive, wherein the adhesive includes at least one of a fatty primary monoamide and a fatty secondary monoamide.

A noble metal fine particle herein disclosed includes a noble metal element as a main constituent metal element. An imine compound is held on a surface, and an amine/imine ratio (A/I ratio) of an area ratio of a peak area of the imine compound and a peak area of an amine compound determined in pyrolysis GCMS analysis with a pyrolysis temperature of 300° C. is 1 or less.

A coil component includes a body that is made of a composite material containing a resin material and metal powder, a coil conductor which is provided in the body and an end portion of which is exposed on an end face of the body, and a metal film that is provided on an outer surface of the body and that is electrically connected to the coil conductor on the end face in the outer surface. The outer surface of the body has a contact area that is in contact with the metal film. Multiple particles of the metal powder escape from the resin material and are in contact with each other in the contact area of the body.