Abstract:
PURPOSE: The complex nanofiber of hydroxyapatite and silk fibroin, a two dimensional structure and a three dimensional structure supporter using the same is provided to easily facilitate the uniformity and guarantee of reappearance, is able to electrospinning for a long time, and useful for cell formation, bond tissue regeneration and supporter as its mechanical property is satisfied. CONSTITUTION: The complex nanofiber uniformly disperses the hydroxyapatite nano particle which surface is reformed with the hyaluronic acid-dopamine conjugate inside the silk fibroin nanofiber. Conjugate of the hyaluronic acid-dopamine is the formation of amide bond by combining the carboxyl group of hyaluronic acid and amine group of dopamine. The hydroxyapatite which surface is reformed with the hyaluronic acid-dopamine conjugate is the combination of two hydroxyl radicals of dopamine to the surface of the hydroxyapatite. The diameter of the complex nanofiber is 100-1000 nm.
Abstract:
PURPOSE: A 3 dimensional silk nano fiber film and a manufacturing method thereof are provided to control biodegradation speed by having similar structure with human skin in size and thickness. CONSTITUTION: A manufacturing method of 3 dimensional silk nano filber film for skin substitute comprises a process for preparing nano fiber undiluted solution, salt adding process and applying voltage and diffusing prepared nano fiber undiluted solution at the same time, and salt removing process from the diffused nano fiber film. On the salt adding process with the electro-spinning, the supply quantity and particle size controlled salt is sprayed on the nano fiber film to form an air gap. The size of the air gap is 10-100 micrometer and the thickness is 1-5 millimeters.
Abstract:
PURPOSE: A medical dressing material using a silk grand-derived hydrolysate and a method for manufacturing the same are provided to ensure excellent wound healing and moisturizing effects. CONSTITUTION: A method for manufacturing a medical dressing material using a silk gland-derived hydrolysate comprises: a step of dissolving a silk-derived hydrolysate and preparing a hydrolysate solution; a step of adding a crosslinking agent to the hydrolysate solution and stirring at 15-30 deg. C for 0.5-2 hours; and a step of quickly freeze-drying.
Abstract:
PURPOSE: Royal jelly capable of enabling users to easily storing and eating, and a producing method thereof are provided to enable users to store the royal jelly at room temperature. CONSTITUTION: A producing method of royal jelly capable of enabling users to easily storing and eating comprises the following steps: preparing raw royal jelly, and injecting liquid nitrogen to the raw royal jelly before drying; and crushing the dried royal jelly. The liquid nitrogen is injected into the royal jelly for 20-40 minutes.
Abstract:
PURPOSE: An artificial dura mater and a manufacturing method thereof are provided to guarantee safety in operation and to do not cause inflammation in the operation. CONSTITUTION: Silk fibroin aqueous solution is cast in smooth and flat place and is dried. The crystallization induction of the dried silk fibroin is executed. A crystallization induction step puts the dried silk fibroin is executed into an enclosure container in which relative humidity is over 80% and executes annealing with water.
Abstract:
Provided are an artificial eardrum using silk protein and a method of fabricating the same. The artificial eardrum is fabricated in the form of a silk membrane by desalinating and drying silk protein (or silk fibroin) or a silk protein complex solution obtained after removal of sericin from a silkworm cocoon or silk fiber. Thus, regeneration of an eardrum perforated due to disease or a sudden accident is stimulated, a boundary of the regenerated eardrum is clean and biocompatibility and transparency are increased. In addition, the artificial eardrum may be fabricated using the silk protein or silk protein complex solution obtained from a silkworm cocoon alone or mixed with collagen, alginic acid, PEG or pluronic 127.
Abstract:
PURPOSE: A manufacturing method of a silk/hydroxyapatite complex nanofiber supporter for osteanagenesis is provided to efficiently coat the silk nanofiber supporter with hydroxyapatite in a short time. CONSTITUTION: A manufacturing method of a silk/hydroxyapatite complex nanofiber supporter for osteanagenesis comprises: a step of preparing silk spinning undiluted solution; a step of electrospinning the silk spinning undiluted solution; a step of dispersing the spun silk nanofiber; a step of manufacturing silk nanofiber having a sponge shape by freeze-drying the dispersed silk nanofiber; a step of coating the silk nanofiber with hydroxyapatite by dipping the silk nanofiber in simulated body fluid; and a step of forming pores on the silk nanofiber coated with hydroxyapatite.
Abstract:
본 고안은 커버부재(1); 상기 정면 커버부재(1)에 의해 보호되며, 직경 1.5∼1.7mm의 은납봉(2)이 중심간격이 4∼6mm 간격으로 배열되도록 양측에서 지지되며, 상기 배열된 각 은납봉은 교대로 양극, 음극전위가 되도록 전기적으로 연결되고, 내부에 홈(3)을 가지는 프레임(4); 상기 프레임(4)의 홈에 결합하며, 봉독이 수집되는 유리판(5); 상기 유리판(5)의 배면에 부착되어 유리판을 보호하는 바닥판(6); 상기 유리판(5) 및 바닥판(6)을 프레임의 홈(3)에 고정시키는 고정스프링(7); 상기 프레임(4)에 지지된 각 은납봉(2)과 전기적으로 접속되며 전기신호의 온/오프를 시간별로 제어하는 컨트롤러(8); 및 상기 컨트롤러(8)에 전원을 공급하는 전원공급부(9)를 포함하는 봉독채집장치를 제공한다.