摘要:
This invention provides a measure that makes it possible to prevent more effectively, in comparison with the prior art, the invasion of germs from the gap between a dental prosthesis and the gingiva when the dental prosthesis is used in an oral cavity as well as the infection and inflammation associated therewith. There is a dental prosthesis or a component thereof, characterized in that: the dental prosthesis or the component thereof has hydroxyapatite fine particles on a surface of the dental prosthesis or the component thereof; the hydroxyapatite fine particles are sintered bodies; and the hydroxyapatite fine particles have a mean particle size of 10 to 1,000 nm.
摘要:
A novel breast enlargement promoter is provided. The present inventor perfected the present invention having discovered a novel attribute in which collagen production is promoted when fine particles of calcium phosphate come into contact with fibroblasts, and having further discovered a novel attribute in which breast enlargement effect is obtained by application of such fine particles to the breasts. More specifically, the present invention is a breast enlargement promoter characterized by containing fine particles of calcium phosphate.
摘要:
An inner surface-modified tube whose inner surface has been subjected to surface-modifying treatment to provide predetermined functions sufficiently exhibits the provided functions and maintains the provided functions for a long period of time. In an inner surface-modified tube 100 in which fine particles 120 are buried in an inner surface of a tube 110 with part of surfaces of the fine particles 120 exposed, the fine particles 120 are unevenly distributed such that more fine particles 120 are distributed in a region A2 from a center C of the tube 110 to the inner surface of the tube 110 than in a region A1 from the center C of the tube 110 to an outer surface of the tube 110 based on a thickness direction of the tube 110, a material constituting the fine particles 120 is a material which does not covalently bond or ionically bond to a material constituting the inner surface of the tube 110, an arithmetic average roughness Ra of the inner surface of the tube 110 is 1 nm or more and 100 µm or less, a particle diameter of the fine particles 120 is 10 nm or more and 100 µm or less, and an inner diameter of the tube 110 is 0.01 mm or more and 100 mm or less.
摘要:
It is an object of the present invention to provide a ceramic particle carrying medical tube and/or cuff excellent in cell adhesive property and the like. A medical tube and/or cuff carrying a ceramic particle in at least a part thereof, wherein: the ceramic particle has a particle diameter within a range of 10 nm to 700 nm; the ceramic particle is a calcium phosphate sintered body particle; and the ceramic particle contains no calcium carbonate.
摘要:
Silver particles are prepared by aggregating silver ions in accordance with a method including steps of (a), in preparing a mixed solution by adding a thiol compound to a solution containing silver ions, adjusting an amount of the thiol compound added to the solution and (b) adding a reducing agent to the mixed solution. This allows a particle size and antibacterial activity of the silver particles to be easily adjusted.
摘要:
This invention has an object to provide a means for providing a calcium phosphate sintered body particle group that does not cause a phenomenon of bubble generation in any use mode thereof, and further has a smaller particle diameter. There is provided a ceramic particle group containing spherical ceramic particles, which is characterized in that the ceramic particle has a particle diameter within a range of 10 nm to 700 nm, and is a calcium phosphate sintered body particle, and further the ceramic particle group contains no calcium carbonate.
摘要:
Provided is a tooth surface repairing material which can produce an effect in a short time while preventing fine particles from shedding. The tooth surface repairing material contains fine calcium phosphate particles, and is characterized in that the fine calcium phosphate particles are highly crystalline sintered calcium phosphate and have an average particle diameter in the range of 20-100 nm.
摘要:
This invention has an object to provide a means for providing a calcium phosphate sintered body particle group that does not cause a phenomenon of bubble generation in any use mode thereof, and further has a smaller particle diameter. There is provided a ceramic particle group containing spherical ceramic particles, which is characterized in that the ceramic particle has a particle diameter within a range of 10 nm to 700 nm, and is a calcium phosphate sintered body particle, and further the ceramic particle group contains no calcium carbonate.