TEMPERATURE-SENSITIVE CHITOSAN HYDROGEL COMPOSITION AND BIOINK COMPOSITION COMPRISING SAME

• Main Authors: CHA, Mi Sun, KIM, Jung Ju
• Format: Patent
• Language: English; French; Korean
• Published: 30.12.2020
• Subjects: ADHESIVES; BEER; BIOCHEMISTRY; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS THEREOF; CORRECTING FLUIDS; CULTURE MEDIA; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; DYES; ENZYMOLOGY; FILLING PASTES; HUMAN NECESSITIES; HYGIENE; INKS; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MUTATION OR GENETIC ENGINEERING; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; USE OF MATERIALS THEREFOR; VINEGAR; WINE; WOODSTAINS

The present invention relates to a chitosan hydrogel composition comprising chitosan, glycerol, and a phosphate group, wherein the chitosan is crosslinked by glycerol, a phosphate group, or a combination thereof. The chitosan hydrogel composition enables temperature control for inducing a liquid-state composition into a gel state according to the content ratio of a phosphate group and glycerol, and since the concentration of gelatin affects the printing characteristics, strength, and the like, can be used as ink for 3D printers. La présente invention concerne une composition d'hydrogel de chitosane comprenant du chitosane, du glycérol et un groupe phosphate, le chitosane étant réticulé par du glycérol, un groupe phosphate ou une combinaison de ceux-ci. La composition d'hydrogel de chitosane permet une régulation de température pour faire passer une composition à l'état liquide dans un état de gel selon le rapport de teneur d'un groupe phosphate et du glycérol, et étant donné que la concentration de gélatine affecte les caractéristiques d'impression, la résistance, et analogues, elle peut être utilisée comme encre pour des imprimantes 3D. 키토산, 글리세롤 및 인산기를 포함하고, 상기 키토산은 글리세롤, 인산기 또는 이의 조합에 의해 가교결합된 것인 키토산 하이드로겔 조성물에 관한 것으로, 인산기 및 글리세롤의 함량비에 따라 액체 상태의 조성물을 겔 상태로 유도할 수 있는 온도의 제어가 가능하며, 젤라틴 농도에 따라 프린트 특성 및 강도 등에 영향을 주므로 3D 프린트용 잉크로서 활용할 수 있다.