摘要:
A titania fiber which is excellent in a balance between a BET specific surface area and which is able to reveal sufficient photocatalytic activity while having mechanical strength and a method for manufacturing the subject titania fiber are provided. By using a titanium oxide particle-containing as a fiber forming composition for forming a titania fiber, a fiber aggregate is manufactured from the subject composition by an electrospinning method and then baked, thereby obtaining a titania fiber which has an average fiber diameter of 50 nm or more and not more than 1,000 nm; when a reflection method by a goniometer is employed, has a crystallite size of 50 nm or more and not more than 200 nm; and has a BET specific surface area of 3 m2/g or more and not more than 100 m2/g.
摘要:
Provided are porous fibers and fiber structures that have large surface areas and large voids, and controlled hydrophilicity suitable for matrices of cell culture in the field of tissue engineering, and a method for producing the fiber structure including a step in which a solution is produced by dissolving a hydrophobic solvent-soluble polymer and an organic compound having a plurality of hydroxyl groups in a hydrophobic solvent, a step in which the solution is spun by electrospinning, and a step in which a fiber structure accumulated on a collector is obtained.
摘要:
A carbon fiber having a lattice spacing (d002) of 0.336 nm to 0.338 nm and a crystallite size (Lc002) of 50 nm to 150 nm as measured and evaluated by X-ray diffraction and a fiber diameter of 10 nm to 500 nm, the carbon fiber having no branched structure.
摘要:
A carbon fiber having a lattice spacing (d002) of 0.336 nm to 0.338 nm and a crystallite size (Lc002) of 50 nm to 150 nm as measured and evaluated by X-ray diffraction and a fiber diameter of 10 nm to 500 nm, the carbon fiber having no branched structure.
摘要:
A process for production of a nonwoven fabric, which comprises a step wherein a thermoplastic polymer is dissolved in a mixed solvent composed of a volatile good solvent and a volatile poor solvent, a step wherein the resulting solution is spun by an electrospinning method and a step wherein a nonwoven fabric accumulated on a collecting sheet is obtained, is employed to provide a nonwoven fabric having a surface area sufficiently large as a matrix for cell culturing in the field of regenerative medicine, with large gaps between filaments and a low apparent density suitable for cell culturing.
摘要:
Inorganic fibers consisting substantially of silicon, carbon, oxygen and a transition metal, having a fiber size of no greater than 2 μm and having fiber lengths of 100 μm or greater.
摘要:
It is an object of the present invention to provide a cylindrical body which has an excellent elastic modulus and elastic recovery and is suitable for use as a scaffold material for revascularization. It is a further object of the present invention to provide a cylindrical body which has an outermost layer with high air permeability, is excellent in cell infiltration and is suitable for use as a scaffold material for revascularization. The cylindrical body of the present invention is a hollow cylindrical body consisting of a plurality of concentric layers and having an outer diameter of 0.5 to 50 mm and a thickness of 200 to 5,000 μm, and each layer is made of aliphatic polyester fibers having an average fiber diameter of 0.05 to 50 μm.
摘要:
A catalyst-supporting fiber structure having a catalyst supported on a fiber constituting a fiber structure having both thorough flexibility and catalyst supporting performance, wherein the fiber has an average fiber diameter of not more than 1 μm, and a fiber having a fiber length of not more than 20 μm is not substantially contained. Since the subject fiber structure is excellent in catalyst-supporting characteristic, for example, it is possible to provide a fiber structure having an extremely high ability to degrade harmful chemicals.