摘要:
[Problem] To fabricate needle portions each having a tip with appropriate dimension and shape and improve puncture properties. [Solution] A method for manufacturing a needle-like structure includes: a step of forming, for a surface of a substrate 11, a plurality of first linear grooves 12 parallel to each other, the first linear grooves being formed along a first direction by means of grinding, to thereby form a plurality of projections 15 each having a triangular cross section perpendicular to the first direction; and a step of forming, for each of the projections 15, a plurality of second linear grooves 14 parallel to each other, the second linear grooves being formed along a second direction intersecting the first direction by means of grinding so as to have a depth smaller than that of the first linear grooves 12, to thereby form a plurality of needle portions 15 each having a triangular cross section perpendicular to the second direction.
摘要:
Provided are: a photosensitive resin composition for cell culture substrates that enables the low-cost manufacture of a cell culture substrate, that can easily form patterns of various shapes when providing a pattern on the surface of a cell culture substrate, that has low cytotoxicity, and that can form a cell culture substrate with which cells can be cultured well; a cell culture substrate that is formed using the photosensitive resin composition; and a cell culture substrate manufacturing method that uses the photosensitive resin composition. In the photosensitive resin composition, which includes a photopolymerizable monomer (A) and a photopolymerization initiator (B), the photopolymerizable monomer (A) used contains a defined amount of a polyfunctional monomer (A1) that is at least trifunctional, and the content of the photopolymerization initiator (B) is within a prescribed range.
摘要:
A method for micro-molding a polymeric membrane and including pouring a predetermined volume of curable polymer unto a micro-fabricated mold having a post array with pillars, and overlaying the polymer with a support substrate. A spacer, such as a rubber spacer, is placed in contact with the support substrate and a force is applied to an exposed side of the spacer to compress the support substrate and the polymer together. While applying the force, the polymer is cured on the mold for a predetermined time period and at a predetermined temperature to form a polymeric membrane having a pore array with a plurality of pores corresponding to the plurality of pillars of the post array. The polymeric membrane is removed from the support substrate.
摘要:
A method of preparing a polymer film having an oriented dispersed material includes casting a multi-layer polymer solution having a first polymer solution layer and a second polymer solution layer where the second polymer solution layer is at least partially immiscible with the first polymer solution layer. The method further includes passing the multi-layer polymer solution through an electric field application zone, to thereby induce orientation of the dispersed material. A multi-layer polymer film can then be formed by drying the solvent from the multi-layer polymer solution. An apparatus for preparing polymer films includes a top electrode made from a flexible metal mesh coated with a non-stick, non-conductive coating.
摘要:
A method of forming a microneedle array can include forming a microneedle array having one or more chemotherapeutic agents. The microneedle array can include a base portion and plurality of microneedles extending from the base portion, and the one or more chemotherapeutic agents can be present in a higher concentration in the plurality of microneedles than in the base portion.
摘要:
Provided are: a photosensitive resin composition for cell culture substrates that enables the low-cost manufacture of a cell culture substrate, that can easily form patterns of various shapes when providing a pattern on the surface of a cell culture substrate, that has low cytotoxicity, and that can form a cell culture substrate with which cells can be cultured well; a cell culture substrate that is formed using the photosensitive resin composition; and a cell culture substrate manufacturing method that uses the photosensitive resin composition. In the photosensitive resin composition, which includes a photopolymerizable monomer (A) and a photopolymerization initiator (B), the photopolymerizable monomer (A) used contains a defined amount of a polyfunctional monomer (A1) that is at least trifunctional, and the content of the photopolymerization initiator (B) is within a prescribed range.
摘要:
A needle-shaped structure includes a needle-shaped projection and a support substrate supporting the projection wherein the projection contains at least a chitosan and an organic acid, places a low burden on a living body and is able to keep the microscopic form after puncture into the skin.
摘要:
Methods of and devices for making pores, nozzles, and slits are described. In some embodiments, the methods create pattern in the molded substrate by controlling the location and direction of a controlled flow stream through molding plates. The molding plate contains a predefined pattern that is able to be used to create the desired pattern in the molding plate.
摘要:
An apparatus (3) and a method for fabricating a three-dimensional object, the apparatus comprising a feed reservoir (24) having stored therein a supply of build material for forming the object, a build chamber (27) for receiving layers of the build material from the feed reservoir (24) and a vacuum pump (258) coupled to the feed reservoir to create an airflow through the feed reservoir.
摘要:
The invention relates to a honeycomb film made of a biodegradable polymer which has biodegradation properties as an anti-adhesion membrane for preventing adhesion after an operation, is excellent in handling properties, and exhibits a satisfactory adhesion preventive effect stably over a desired period of time, and to a production process of the same. Above all, the invention provides an anti-adhesion membrane of a honeycomb film made of polylactic acid as a biodegradable polymer and a phospholipid and a production process of the same.