Abstract:
본 발명은 폴리에스테르계 고분자 화합물에 카테콜 단분자 화합물이 공유결합된 카테콜화 폴리에스테르계 화합물을 포함하는 나노섬유, 티올화 폴리락틱글리콜산(PLGA-SH)과 카테콜화 멀티-암(multi-arm) 폴리에틸렌글리콜(cPEG)을 포함하는 나노섬유로서 상기 카테콜 및 티올의 교차결합을 포함하는 나노섬유, 이들의 제조방법, 이들의 용도에 관한 것이다.
Abstract:
The present invention relates to nanofiber which includes a catecholated polyester group compound in which a catechol monomer compound is covalent bonded with a polyester group polymeric compound, nanofiber which has thiolated polylactic glycolic acid and catecholated multi-arm polyethylene glycol and includes cross coupling of the catechol and thiol, a manufacturing method thereof, and its use thereof. [Reference numerals] (AA) PCL-PEG NF on the water; (BB) Catechol-nanofiber; (CC) Protein combination relative to catechol-nanofiber(pH 7.4 or greater); (DD) Catechol-nanofiber in an alkaline condition(pH 7.4 or greater)
Abstract:
본 발명은 신규한 미립구 제조방법에 관한 것으로서, 보다 상세하게는 이온화 가능한 양친매성 고분자를 물에 용해시켜 전하를 띈 고분자 용액을 제조하는 단계; 상기 고분자 용액을 고전압의 전기장 하에서 방사시켜 미립구(microsphere)를 제조하는 단계; 및 상기 제조된 미립구를 미립구의 전하를 중화시킬 수 있는 용액과 반응시키는 단계를 포함하는 미립구의 제조방법에 관한 것이다. 상기 고분자 용액에는 미립구 내에 포접시키려는 물질을 더 포함할 수 있다.
Abstract:
The present invention relates to chitosan nanofiber for delivering anionic protein, a preparation method thereof, and a transmucosal administrative agent including the chitosan nanofiber. The chitosan nanofiber comprises a core which contains anionic protein and a shell which contains chitosan, wherein the core is obtained by injecting a drug solution containing anionic protein drug into a nozzle and injecting a solution containing chitosan or its derivatives into an outer nozzle and coaxial electrospinning the solution. [Reference numerals] (AA) Chitosan
Abstract:
PURPOSE: A manufacturing method of microspheres is provided to be simple, to have high entrapment efficiency, to be safe, and to be excellent material transfer effect. CONSTITUTION: A manufacturing method of microspheres comprises a step of manufacturing a polymer solution with charge by dissolving an ionizable amphiphilic polymer; a step of manufacturing microspheres by spinning the polymer solution in a high voltage electric field; and a step of conduct a reaction of the microspheres and solution which can neutralize charge of the microspheres. The microsphere additionally includes material capable of being entrapped into the microsphere. The material is selected from gene, physiologically active component, and drugs. [Reference numerals] (AA) Distilled water; (BB) Neutralization; (CC) Washing; (DD) Microsphere collection
Abstract:
PURPOSE: A biodegradable coaxial fiber complex is provided, which makes proper bioactivation material successively act according to the growth of cell and differentiation time. CONSTITUTION: A biodegradable coaxial fiber complex comprises Poly(ε-caprolactone) and Poly(ε-caprolactone)-Poly(ethylene glycol)-NH2 in which amine is combined with the end. A first bioactivation material is encapsulated inside the fiber. In the fiber surface, a second bioactivation material is conjugated. When the first bioactivation material is encapsulated inside the fiber, non-ionic surfactant is together encapsulated.
Abstract:
A biodegradable nano-fiber complex, and a preparation method and a use thereof are provide to make a dressing material used for a long period of time by reducing the discharging speed of growth factor. A biodegradable nano-fiber complex is made by coupling a biodegradable resin containing poly caprolactone-polyethyleneglycol block polymer(PEG-PCL-PEG diblock copolymer) having amine group at the end thereof with a biocompatible active component having a functional group capable of coupling with the amine group chemically. The functional group capable of coupling with the amine group contains carboxyl group. The biocompatible active component contains glycoprotein having carboxyl group. The glycoprotein is selected among serum albumin, glucosamine and thyroid hormone.
Abstract:
본 발명은 생체활성물질을 함유하는 생분해성 동축(coaxial) 섬유 복합체, 그의 제조방법 및 그의 용도에 관한 것이다. 본 발명의 생분해성 동축 섬유 복합체는 폴리(ε-카프로락톤)과 말단에 아민이 결합된 폴리카프로락톤-폴리에틸렌글리콜(Poly(ε-caprolactone)-Poly(ethylene glycol)-NH 2 ) 블록 공중합체의 혼합액을 중공사 노즐의 외부 노즐을 통하여, 제1 생체활성물질을 포함하는 용액을 중공사 노즐의 내부 노즐을 통하여, 전기방사하여 동축 섬유를 형성시킨 후, 상기 섬유의 표면에 제2 생체활성물질을 화학적으로 결합시켜 제조한다. 따라서 본 발명의 생분해성 동축 섬유 복합체는 동축 섬유 내부에 제1 생체활성물질이 포접되어 있고 섬유 표면에 제2 생체활성물질이 화학적으로 결합되어 있음을 특징으로 하며, 상기 생체활성물질들을 서로 다른 방출 패턴으로 제공하여야 하는 곳에 유용하게 사용될 수 있다. 동축 섬유, 생체활성물질, 생분해성