Abstract:
본 발명은 소수성 치환기를 갖는 글리콜 키토산 유도체, 이의 제조방법 및 이의 용도에 관한 것으로, 더욱 상세하게는 2번 위치의 아민기의 일부가 아세틸기 및 소수성기로 치환된 구조를 갖는 글리콜 키토산 유도체로서, 상기 글리콜 키토산 유도체는 특정 온도에서 가역적인 졸-겔 전이를 일으키는 온도감응 특성으로 인해 의약 분야, 바이오 분야, 및 전자 분야 등에 다양하게 적용할 수 있다.
Abstract:
본 발명은 소수성 치환기를 갖는 글리콜 키토산 유도체, 이의 제조방법 및 이의 용도에 관한 것으로, 더욱 상세하게는 2번 위치의 아민기의 일부가 아세틸기 및 소수성기로 치환된 구조를 갖는 글리콜 키토산 유도체로서, 상기 글리콜 키토산 유도체는 특정 온도에서 가역적인 졸-겔 전이를 일으키는 온도감응 특성으로 인해 의약 분야, 바이오 분야, 및 전자 분야 등에 다양하게 적용할 수 있다.
Abstract:
The present invention relates to glycol chitin derivatives having temperature-sensitive sol-gel transition, method for preparing the same, and a hydrogel prepared by cross linking and, more specifically, to glycol chitin derivatives having sol-gel transition at a specific temperature and including double bond in molecular structure, a method for preparing the same, and a hydrogel prepared by cross linking reaction of double bond of the glycol chitin derivatives. The glycol chitin derivatives and the hydrogel prepared by cross linking the same have excellent biocompatibility to be applied to various fields like the medical field, bio field, electronic field, etc.
Abstract:
The present invention relates to glycol chitosan derivative having hydrophobic substituent, to a method to prepare same and to a use of the same. More specifically, the glycol chitosan derivative of the present invention is configured in that a portion of the amine group in the number 2 position is substituted with an acetyl group and a hydrophobic group. The glycol chitosan derivative has thermo-sensitive characteristics which might cause reversible sol-gel transition at a specific temperature, thereby can widely be applied in the medical field, bio field, electronic field, etc.
Abstract:
PURPOSE: A glycol chitosan derivative is provided to have improved solubility to organic solvent, to form nanosized self aggregate, and to have thermo-sensitive sol/gel phase transition behavior, thereby using for drug delivery system. CONSTITUTION: A glycol chitosan derivative has a structure of chemical formula 1. In chemical formula 1, n is the integer of 10-10000. The acetylation degree of the glycol chitosan derivative is 20-90%. A manufacturing method of the glycol chitosan derivative in chemical formula 1 comprises a step of acetylation of glycol chitosan in chemical formula 1 to an acetylating agent. The acetylating agent is acetic anhydride. The drug delivery system comprises the chitosan derivative.