CN115536919A - 一种改性壳聚糖粘附水凝胶及其制备方法和应用 - Google Patents
一种改性壳聚糖粘附水凝胶及其制备方法和应用 Download PDFInfo
- Publication number
- CN115536919A CN115536919A CN202211033371.0A CN202211033371A CN115536919A CN 115536919 A CN115536919 A CN 115536919A CN 202211033371 A CN202211033371 A CN 202211033371A CN 115536919 A CN115536919 A CN 115536919A
- Authority
- CN
- China
- Prior art keywords
- solution
- gallic acid
- chitosan
- chitosan derivative
- polydopamine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920001661 Chitosan Polymers 0.000 title claims abstract description 118
- 239000000017 hydrogel Substances 0.000 title claims abstract description 59
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 49
- 239000000853 adhesive Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims abstract description 145
- 229940074391 gallic acid Drugs 0.000 claims abstract description 72
- 235000004515 gallic acid Nutrition 0.000 claims abstract description 72
- 229920002752 Konjac Polymers 0.000 claims abstract description 34
- 235000010485 konjac Nutrition 0.000 claims abstract description 34
- 229920001690 polydopamine Polymers 0.000 claims abstract description 34
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims abstract description 32
- 229920002581 Glucomannan Polymers 0.000 claims abstract description 32
- 229940046240 glucomannan Drugs 0.000 claims abstract description 32
- 241001312219 Amorphophallus konjac Species 0.000 claims abstract description 30
- 235000001206 Amorphophallus rivieri Nutrition 0.000 claims abstract description 30
- 239000000252 konjac Substances 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004132 cross linking Methods 0.000 claims abstract description 6
- 230000008439 repair process Effects 0.000 claims abstract description 4
- 208000031737 Tissue Adhesions Diseases 0.000 claims abstract description 3
- 230000023597 hemostasis Effects 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 18
- 239000008367 deionised water Substances 0.000 claims description 18
- 229910021641 deionized water Inorganic materials 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 13
- NQTADLQHYWFPDB-UHFFFAOYSA-N N-Hydroxysuccinimide Chemical compound ON1C(=O)CCC1=O NQTADLQHYWFPDB-UHFFFAOYSA-N 0.000 claims description 10
- 239000012043 crude product Substances 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 8
- 230000004913 activation Effects 0.000 claims description 8
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000005714 Chitosan hydrochloride Substances 0.000 claims description 2
- 238000000502 dialysis Methods 0.000 claims description 2
- 238000004108 freeze drying Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims 1
- 206010052428 Wound Diseases 0.000 abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 10
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 6
- 230000008961 swelling Effects 0.000 abstract description 5
- 230000029663 wound healing Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 125000000524 functional group Chemical group 0.000 abstract description 3
- 238000013329 compounding Methods 0.000 abstract description 2
- 238000011068 loading method Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000000053 physical method Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000000203 mixture Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000011259 mixed solution Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 241000700159 Rattus Species 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000003115 biocidal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000008363 phosphate buffer Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000003106 tissue adhesive Substances 0.000 description 2
- 229940075469 tissue adhesives Drugs 0.000 description 2
- 230000017423 tissue regeneration Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003519 biomedical and dental material Substances 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 231100000263 cytotoxicity test Toxicity 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 210000002950 fibroblast Anatomy 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 230000003779 hair growth Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000002439 hemostatic effect Effects 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000643 oven drying Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000008055 phosphate buffer solution Substances 0.000 description 1
- 238000002464 physical blending Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000002522 swelling effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0015—Medicaments; Biocides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/001—Use of materials characterised by their function or physical properties
- A61L24/0031—Hydrogels or hydrocolloids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/046—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L24/00—Surgical adhesives or cements; Adhesives for colostomy devices
- A61L24/04—Surgical adhesives or cements; Adhesives for colostomy devices containing macromolecular materials
- A61L24/08—Polysaccharides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/246—Intercrosslinking of at least two polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/216—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with other specific functional groups, e.g. aldehydes, ketones, phenols, quaternary phosphonium groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/04—Materials for stopping bleeding
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2305/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2301/00 or C08J2303/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials For Medical Uses (AREA)
Abstract
本发明公开了一种改性壳聚糖粘附水凝胶及其制备方法和应用。该方法首先将没食子酸偶联壳聚糖,接着,加入聚多巴胺复合,最后,加入氧化魔芋葡苷聚糖交联。通过化学加物理两种方法负载粘附性官能团,赋予该水凝胶优异的粘附、溶胀、生物相容、促进伤口愈合、抗菌和力学性能。聚多巴胺的引入使水凝胶的粘附性能有成倍的显著提升。本发明有望应用于伤口止血和修复、组织粘合与物品粘合材料中的制备。
Description
技术领域
本发明涉及生物医用材料和功能高分子技术领域,具体涉及一种改性壳聚糖粘附水凝胶及其制备方法和应用。
背景技术
医用粘合剂主要分为硬组织粘合剂和软组织粘合剂,目前,研究主要集中在丙烯酸酯类、聚酯类和聚乙二醇类。近年来,粘附性水凝胶引起了广泛关注,并有望取代缝合技术。与传统医用粘合技术相比,粘附性水凝胶不仅可以粘合不同的组织,而且还具有止血、吸收伤口渗出液和保持伤口湿润等基本性能,从而促进组织修复。此外,当对凝胶进一步改性后,还可增加其抗菌、释放药物和自愈合等功能特性。粘附性水凝胶应用前景广阔,包括骨修复、皮肤组织修复、止血剂和生物传感器等。
壳聚糖源于生物质,为一种重要的生物医用材料,具有优良的生物相容性,常用作水凝胶的基材。但是,壳聚糖水凝胶同样具有粘附、力学和抗菌性不足的问题,限制了其推广应用,因此,需要对壳聚糖水凝胶进行结构改性以赋予其应用(特别是作为生物医用材料)所需性能。
发明内容
本发明的目的在于解决现有技术存在的问题,提供了一种改性壳聚糖粘附水凝胶及其制备方法和应用。本发明采用化学和物理双重负载粘附性官能团的方法,先将没食子酸偶联到壳聚糖上,然后,复合聚多巴胺,最后,通过氧化魔芋葡苷聚糖进行交联成胶。没食子酸和聚多巴胺的引入共同提高改性壳聚糖水凝胶的粘附和抗菌性能。采用氧化魔芋葡苷聚糖进行交联可以提升改性壳聚糖粘附水凝胶的粘附和力学性能。
为实现上述目的,本发明设计的一种改性壳聚糖粘附水凝胶,该粘附水凝胶的原料包括没食子酸偶联壳聚糖衍生物水溶液、聚多巴胺分散液和氧化魔芋葡苷聚糖溶液,其中,所述聚多巴胺分散液的体积为没食子酸偶联壳聚糖衍生物溶液体积的10%;所述聚多巴胺分散液中,聚多巴胺用量为没食子酸改性壳聚糖衍生物水溶液中没食子酸改性壳聚糖衍生物质量的3.3%~10%;
所述氧化魔芋葡苷聚糖溶液的体积为没食子酸偶联壳聚糖衍生物溶液体积的4%~12%;所述氧化魔芋葡苷聚糖溶液中,氧化魔芋葡苷聚糖的用量为没食子酸偶联壳聚糖衍生物溶液中没食子酸偶联壳聚糖衍生物质量的10.7%~32%。
所述没食子酸偶联壳聚糖衍生物溶液的浓度为0.03g·mL-1;所述氧化魔芋葡苷聚糖溶液的浓度为0.08g·mL-1。
本发明还提供了一种改性壳聚糖粘附水凝胶的制备方法,包括以下步骤:
(1)将壳聚糖溶于醋酸溶液,得到壳聚糖溶液;
(2)将没食子酸溶于乙醇的水溶液,得到没食子酸溶液;
(3)将1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和N-羟基琥珀酰亚胺加入至没食子酸溶液中活化;
(4)将活化的溶液加入至壳聚糖溶液中反应,得到粗产品,透析,干燥得到没食子酸偶联壳聚糖衍生物;
(5)将没食子酸偶联壳聚糖衍生物溶于水,得到没食子酸偶联壳聚糖衍生物溶液;
(6)将聚多巴胺分散于水,得到聚多巴胺分散液;
(7)将步骤(6)得到的分散液加入至步骤(5)溶液中,搅拌均匀,再加入氧化魔芋葡苷聚糖溶液,交联得到改性壳聚糖粘附水凝胶。
进一步的,所述步骤(1)中,壳聚糖溶液浓度为0.01g·mL-1;
再进一步的,所述步骤(2)中,乙醇的水溶液由去离子水和无水乙醇按体积比1:1配制而成,没食子酸溶液浓度为0.025g·mL-1。
再进一步的,所述步骤(3)中,1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和N-羟基琥珀酰亚胺的用量均为壳聚糖质量的100%,加入至没食子酸溶液中的活化时间为2小时;
再进一步的,所述步骤(4)中,反应需避光进行,氮气保护,反应时间为24小时,透析时间为3天,干燥为烘干或冷冻干燥。
再进一步的,所述步骤(5)中,没食子酸偶联壳聚糖衍生物溶液的浓度为0.03g·mL-1。
再进一步的,所述步骤(6)中,聚多巴胺分散液体积为没食子酸偶联壳聚糖衍生物溶液体积的10%;聚多巴胺分散液中聚多巴胺用量为没食子酸偶联壳聚糖衍生物水溶液中没食子酸偶联壳聚糖衍生物质量的3.3%~10%。
再进一步的,所述步骤(7)中,氧化魔芋葡苷聚糖溶液的体积为没食子酸偶联壳聚糖衍生物溶液体积的4%~12%,氧化魔芋葡苷聚糖溶液中氧化魔芋葡苷聚糖的用量为没食子酸偶联壳聚糖衍生物质量的10.7%~32%,且氧化魔芋葡甘聚糖的浓度为0.08g·mL-1,反应时间10分钟~48小时。
本发明还提供了一种上述改性壳聚糖粘附水凝胶在制备伤口止血和修复、组织粘合与物品粘合材料中的应用。
本发明改性壳聚糖粘附水凝胶的制备机理:
本发明的改性壳聚糖粘附水凝胶采用化学偶联和物理共混两种方法引入两种粘附性官能团,制备了一种新型微观结构的水凝胶。首先,将没食子酸偶联到壳聚糖分子链上,接着,将聚多巴胺与上述衍生物复合,然后,通过氧化魔芋葡苷聚糖进行交联,最终生成改性壳聚糖衍生物/聚多巴胺粘附水凝胶。此外,氧化魔芋葡苷聚糖、壳聚糖偶联没食子酸衍生物和聚多巴胺之间存在共价键、氢键和分子链缠绕等多种相互作用,与上述偶联共同作用获得水凝胶优异的粘附、抗菌、力学和溶胀等综合性能。
本发明的有益效果:
1.本发明的改性壳聚糖粘附水凝胶采用物理加化学两种方式负载粘附性基团,比传统一种负载形式的负载量更大。
2.本发明提供的水凝胶综合性能突出,同时具有优异的粘附、抗菌、力学和溶胀等性能。
3.本发明解决了传统壳聚糖水凝胶没有粘附和抗菌性不足的问题。聚多巴胺的引入使本发明的改性壳聚糖水凝胶粘附性能有成倍的显著提高。
4.本发明的改性壳聚糖粘附水凝胶同时存在多种粘附性基团,适用于皮肤和组织等多种材料的粘附,适用范围比传统一种粘附性基团更广。
5.本发明的改性壳聚糖粘附水凝胶同时引入两种粘附性基团,比传统的单粘附结构更稳定,粘附性更强。
6.本发明的改性壳聚糖粘附水凝胶以天然高分子为基材,且改性后仍然具有良好的生物相容性。
7.本发明的改性壳聚糖粘附水凝胶可以稳定粘附于伤口表面,并可有效促进伤口愈合。
8.本发明的改性壳聚糖粘附水凝胶的制备方法简单易行,便于产业化应用。
附图说明
图1为改性壳聚糖粘附水凝胶的促进伤口愈合效果。
具体实施方式
下面结合具体实施例对本发明作进一步的详细描述,以便本领域技术人员理解。
实施例1
1)称取5g壳聚糖溶于500mL醋酸溶液中,室温下磁力搅拌至溶解均匀。
2)另称取5g没食子酸溶于200mL乙醇的水溶液中(V去离子水:V无水乙醇=1:1),磁力搅拌至溶解均匀,接着,加入5g 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和5g N-羟基琥珀酰亚胺进行活化2小时,然后,加入至上述壳聚糖溶液中,在氮气保护下避光进行反应24小时,得到粗产品。
3)将得到的粗产品在去离子水中透析3天,烘干得到没食子酸偶联壳聚糖衍生物。
4)称取300mg没食子酸偶联壳聚糖衍生物于烧杯中,加入10mL去离子水,磁力搅拌至溶解均匀制得没食子酸偶联壳聚糖衍生物溶液。
5)称取30mg聚多巴胺,分散于1mL去离子水,搅拌均匀。
6)将步骤5)得到的聚多巴胺分散液加入步骤4)得到的没食子酸偶联壳聚糖衍生物溶液中,磁力搅拌均匀。
7)加入800uL氧化魔芋葡苷聚糖溶液至步骤6)得到的混合溶液,其中,氧化魔芋葡苷聚糖的浓度为0.08g·mL-1,反应10分钟,得到改性壳聚糖粘附水凝胶1。
以猪皮模拟人类皮肤,粘附在水凝胶的两侧,通过对两边猪皮的平行反方向拉伸,直至断裂,此时即为水凝胶的粘附强度。水凝胶1对皮肤的粘附强度为25.7kPa,若不含聚多巴胺(其它工艺完全相同),水凝胶对皮肤的粘附强度仅为8.3kPa。此外,水凝胶1对大肠杆菌和金黄色葡萄球菌的抗菌率分别达到90.2%和83.7%,压缩强度为37.6kPa,pH 7.4磷酸缓冲液中的溶胀为17.5g·g-1。结果表明,水凝胶1具有优异的综合性能。
实施例2
1)称取5g壳聚糖溶于500mL醋酸溶液中,室温下磁力搅拌至溶解均匀。
2)另称取5g没食子酸溶于200mL乙醇的水溶液中(V去离子水:V无水乙醇=1:1),磁力搅拌至溶解均匀,接着,加入5g 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和5g N-羟基琥珀酰亚胺进行活化2小时,然后,加入至上述壳聚糖溶液中,在氮气保护下避光进行反应24小时,得到粗产品。
3)将得到的粗产品在去离子水中透析3天,烘干得到没食子酸偶联壳聚糖衍生物。
4)称取300mg没食子酸偶联壳聚糖衍生物于烧杯中,加入10mL去离子水,磁力搅拌至溶解均匀制得没食子酸偶联壳聚糖衍生物溶液。
5)称取20mg聚多巴胺,分散于1mL去离子水,搅拌均匀。
6)将步骤5)得到的聚多巴胺分散液加入步骤4)得到的没食子酸偶联壳聚糖衍生物溶液中,磁力搅拌均匀。
7)加入1200uL氧化魔芋葡苷聚糖溶液至步骤6)得到的混合溶液,其中,氧化魔芋葡苷聚糖的浓度为0.08g·mL-1,反应10分钟,得到改性壳聚糖粘附水凝胶2。
上述方法所得水凝胶2对皮肤的粘附强度为24.5kPa,压缩强度为35.6kPa,pH 7.4磷酸缓冲液中的溶胀为13.2g·g-1。
实施例3
1)称取5g壳聚糖溶于500mL醋酸溶液中,室温下磁力搅拌至溶解均匀。
2)另称取5g没食子酸溶于200mL乙醇的水溶液中(V去离子水:V无水乙醇=1:1),磁力搅拌至溶解均匀,接着,加入5g 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和5g N-羟基琥珀酰亚胺进行活化2小时,然后,加入至上述壳聚糖溶液中,在氮气保护下避光进行反应24小时,得到粗产品。
3)将得到的粗产品在去离子水中透析3天,烘干得到没食子酸偶联壳聚糖衍生物。
4)称取300mg没食子酸偶联壳聚糖衍生物于烧杯中,加入10mL去离子水,磁力搅拌至溶解均匀制得没食子酸偶联壳聚糖衍生物溶液。
5)称取20mg聚多巴胺,分散于1mL去离子水,搅拌均匀。
6)将步骤5)得到的聚多巴胺分散液加入步骤4)得到的没食子酸偶联壳聚糖衍生物溶液中,磁力搅拌均匀。
7)加入800uL氧化魔芋葡苷聚糖溶液至步骤6)得到的混合溶液,其中,氧化魔芋葡苷聚糖的浓度为0.08g·mL-1,反应10分钟,得到改性壳聚糖粘附水凝胶3。
上述方法所得水凝胶3对皮肤的粘附强度为24.8kPa,压缩强度为36.8kPa。
实施例4
1)称取5g壳聚糖溶于500mL醋酸溶液中,室温下磁力搅拌至溶解均匀。
2)另称取5g没食子酸溶于200mL乙醇的水溶液中(V去离子水:V无水乙醇=1:1),磁力搅拌至溶解均匀,接着,加入5g 1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和5g N-羟基琥珀酰亚胺进行活化2小时,然后,加入至上述壳聚糖溶液中,在氮气保护下避光进行反应24小时,得到粗产品。
3)将得到的粗产品在去离子水中透析3天,烘干得到没食子酸偶联壳聚糖衍生物。
4)称取300mg没食子酸偶联壳聚糖衍生物于烧杯中,加入10mL去离子水,磁力搅拌至溶解均匀制得没食子酸偶联壳聚糖衍生物溶液。
5)称取15mg聚多巴胺,分散于1mL去离子水,搅拌均匀。
6)将步骤5)得到的聚多巴胺分散液加入步骤4)得到的没食子酸偶联壳聚糖衍生物溶液中,磁力搅拌均匀。
7)加入800uL氧化魔芋葡苷聚糖溶液至步骤6)得到的混合溶液,其中,氧化魔芋葡苷聚糖的浓度为0.08g·mL-1,反应10分钟,得到改性壳聚糖粘附水凝胶4。
上述方法所得水凝胶4在pH 7.4磷酸缓冲液中的溶胀为24.9g·g-1。细胞毒性测试结果表明,水凝胶4具有良好的生物相容性,成纤维细胞的存活率为88.2%。水凝胶4促进伤口愈合效果如图1所示,大鼠伤口在第十四天时,从三组效果图整体来看,空白组和缝合组的大鼠伤口还有一小部分没有完全愈合,而凝胶组的伤口已经基本完全愈合,伤口处有新的毛发生长,且整个过程中大鼠没有任何不良的反应。从而可以证明改性壳聚糖粘附水凝胶对伤口愈合有良好的促进作用,所以适用于伤口愈合领域。
其它未详细说明的部分均为现有技术。尽管上述实施例对本发明做出了详尽的描述,但它仅仅是本发明一部分实施例,而不是全部实施例,人们还可以根据本实施例在不经创造性前提下获得其它实施例,这些实施例都属于本发明保护范围。
Claims (9)
1.一种改性壳聚糖粘附水凝胶,其特征在于:该粘附水凝胶的原料包括没食子酸偶联壳聚糖衍生物溶液、聚多巴胺分散液和氧化魔芋葡苷聚糖溶液,其中,所述聚多巴胺分散液的体积为没食子酸偶联壳聚糖衍生物溶液体积的10%;所述聚多巴胺分散液中,聚多巴胺用量为没食子酸改性壳聚糖衍生物水溶液中没食子酸改性壳聚糖衍生物质量的3.3%~10%;
所述氧化魔芋葡苷聚糖溶液的体积为没食子酸偶联壳聚糖衍生物溶液体积的4%~12%;所述氧化魔芋葡苷聚糖溶液中,氧化魔芋葡苷聚糖的用量为没食子酸偶联壳聚糖衍生物溶液中没食子酸偶联壳聚糖衍生物质量的10.7%~32%。
2.根据权利要求1所述改性壳聚糖粘附水凝胶,其特征在于:所述没食子酸偶联壳聚糖衍生物溶液的浓度为0.03g·mL-1;所述氧化魔芋葡苷聚糖溶液的浓度为0.08g·mL-1。
3.一种改性壳聚糖粘附水凝胶的制备方法,其特征在于:包括以下步骤:
(1)将壳聚糖溶于醋酸溶液,得到壳聚糖溶液;
(2)将没食子酸溶于乙醇的水溶液,得到没食子酸溶液;
(3)将1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和N-羟基琥珀酰亚胺加入至没食子酸溶液中活化;
(4)将活化的溶液加入至壳聚糖溶液中反应,得到粗产品,透析,干燥得到没食子酸偶联壳聚糖衍生物;
(5)将没食子酸偶联壳聚糖衍生物溶于水,得到没食子酸偶联壳聚糖衍生物溶液;
(6)将聚多巴胺分散于水,得到聚多巴胺分散液;
(7)将步骤(6)得到的分散液加入至步骤(5)溶液中,搅拌均匀,再加入氧化魔芋葡苷聚糖溶液,交联得到改性壳聚糖粘附水凝胶。
4.根据权利要求3所述的制备方法,其特征在于:所述步骤(1)中,壳聚糖溶液的浓度为0.01g·mL-1;
所述步骤(2)中,乙醇的水溶液由去离子水和无水乙醇按体积比1:1配制而成,没食子酸溶液的浓度为0.025g·mL-1。
5.根据权利要求3所述的制备方法,其特征在于:所述步骤(3)中,1-(3-二甲基氨基丙基)-3-乙基碳二亚胺盐酸盐和N-羟基琥珀酰亚胺的用量均为壳聚糖质量的100%,加入至没食子酸溶液中的活化时间为2小时;
所述步骤(4)中,反应需避光进行,氮气保护,反应时间为24小时,透析时间为3天,干燥为烘干或冷冻干燥。
6.根据权利要求3所述的制备方法,其特征在于:所述步骤(5)中,没食子酸偶联壳聚糖衍生物溶液浓度为0.03g·mL-1。
7.根据权利要求3所述的制备方法,其特征在于:所述步骤(6)中,聚多巴胺分散液体积为没食子酸偶联壳聚糖衍生物溶液体积的10%;聚多巴胺用量为没食子酸改性壳聚糖衍生物水溶液中没食子酸偶联壳聚糖衍生物质量的3.3%~10%。
8.根据权利要求3所述的制备方法,其特征在于:所述步骤(7)中,氧化魔芋葡苷聚糖溶液的体积为没食子酸偶联壳聚糖衍生物溶液体积的4%~12%,氧化魔芋葡苷聚糖溶液中,氧化魔芋葡苷聚糖的用量为没食子酸改性壳聚糖衍生物质量的10.7%~32%,且氧化魔芋葡甘聚糖溶液的浓度为0.08g·mL-1,反应时间10分钟~48小时。
9.一种权利要求1所述改性壳聚糖粘附水凝胶在制备伤口止血和修复、组织粘合与物品粘合材料中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211033371.0A CN115536919B (zh) | 2022-08-26 | 2022-08-26 | 一种改性壳聚糖粘附水凝胶及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202211033371.0A CN115536919B (zh) | 2022-08-26 | 2022-08-26 | 一种改性壳聚糖粘附水凝胶及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115536919A true CN115536919A (zh) | 2022-12-30 |
CN115536919B CN115536919B (zh) | 2024-01-19 |
Family
ID=84726329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202211033371.0A Active CN115536919B (zh) | 2022-08-26 | 2022-08-26 | 一种改性壳聚糖粘附水凝胶及其制备方法和应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115536919B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116285017A (zh) * | 2023-01-13 | 2023-06-23 | 中山大学 | 一种温敏性改性壳聚糖水凝胶及其制备方法 |
CN117050336A (zh) * | 2023-07-13 | 2023-11-14 | 海南大学 | 聚乙烯醇/羧甲基壳聚糖/PDA@EGCG NPs水凝胶及其制备方法和应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110237782A (zh) * | 2019-06-26 | 2019-09-17 | 中南民族大学 | 一种高强度抗氧化壳聚糖/聚多巴胺复合水凝胶的制备方法 |
CN111234264A (zh) * | 2020-01-16 | 2020-06-05 | 西南科技大学 | 负载有双键化多巴胺的kgm水凝胶的制备方法 |
CN111269437A (zh) * | 2019-12-07 | 2020-06-12 | 中国海洋大学 | 一种兼具自愈性和黏附性的复合水凝胶的制备方法 |
CN112011067A (zh) * | 2020-08-19 | 2020-12-01 | 华东师范大学 | 一种可降解、自修复和自粘附导电水凝胶及制备方法 |
CN112625264A (zh) * | 2019-09-24 | 2021-04-09 | 天津科技大学 | 一种自修复抗菌壳聚糖水凝胶及其制备方法 |
-
2022
- 2022-08-26 CN CN202211033371.0A patent/CN115536919B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110237782A (zh) * | 2019-06-26 | 2019-09-17 | 中南民族大学 | 一种高强度抗氧化壳聚糖/聚多巴胺复合水凝胶的制备方法 |
CN112625264A (zh) * | 2019-09-24 | 2021-04-09 | 天津科技大学 | 一种自修复抗菌壳聚糖水凝胶及其制备方法 |
CN111269437A (zh) * | 2019-12-07 | 2020-06-12 | 中国海洋大学 | 一种兼具自愈性和黏附性的复合水凝胶的制备方法 |
CN111234264A (zh) * | 2020-01-16 | 2020-06-05 | 西南科技大学 | 负载有双键化多巴胺的kgm水凝胶的制备方法 |
CN112011067A (zh) * | 2020-08-19 | 2020-12-01 | 华东师范大学 | 一种可降解、自修复和自粘附导电水凝胶及制备方法 |
Non-Patent Citations (1)
Title |
---|
LIN WANG等: "Novel synthesis of mussel inspired and Fe3+ induced pH-sensitive hydrogels: Adhesion, injectable, shapeable, temperature properties, release behavior and rheological characterization", 《CARBOHYDRATE POLYMERS》, vol. 236, pages 1 - 10 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116285017A (zh) * | 2023-01-13 | 2023-06-23 | 中山大学 | 一种温敏性改性壳聚糖水凝胶及其制备方法 |
CN117050336A (zh) * | 2023-07-13 | 2023-11-14 | 海南大学 | 聚乙烯醇/羧甲基壳聚糖/PDA@EGCG NPs水凝胶及其制备方法和应用 |
CN117050336B (zh) * | 2023-07-13 | 2024-05-24 | 海南大学 | 聚乙烯醇/羧甲基壳聚糖/PDA@EGCG NPs水凝胶及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN115536919B (zh) | 2024-01-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113941025B (zh) | 一种组织粘附性水凝胶及其用途 | |
Chen et al. | Mussel-inspired sandwich-like nanofibers/hydrogel composite with super adhesive, sustained drug release and anti-infection capacity | |
CN115536919B (zh) | 一种改性壳聚糖粘附水凝胶及其制备方法和应用 | |
Zhao et al. | Injectable antiswelling and high-strength bioactive hydrogels with a wet adhesion and rapid gelling process to promote sutureless wound closure and scar-free repair of infectious wounds | |
CN112300420B (zh) | 一种可注射抗菌互穿双网络水凝胶及其制备方法和应用 | |
Liu et al. | Adhesive, antibacterial and double crosslinked carboxylated polyvinyl alcohol/chitosan hydrogel to enhance dynamic skin wound healing | |
CN110448721B (zh) | 一种抗菌粘附导电止血抗氧化的可注射复合水凝胶及其制备方法和应用 | |
CN110665050B (zh) | 一种生物粘合剂及其制备方法 | |
CN112876694B (zh) | 丙烯酸/ε-聚赖氨酸黏附性抗菌水凝胶的制备方法及其应用 | |
CN115651222A (zh) | 一种用于组织粘附的水凝胶 | |
CN110152055B (zh) | 海藻酸胺化衍生物/细菌纤维素纳米晶复合凝胶构筑的功能性药物缓释医用敷料 | |
CN114404649A (zh) | 一种具有pH/葡萄糖双响应性释放二甲双胍的水凝胶及制备方法和应用 | |
CN111635480A (zh) | 一种抗溶胀水凝胶材料及其制备方法 | |
CN116440317A (zh) | 一种光热抗菌水凝胶及其制备方法 | |
Du et al. | Dual‐Cross‐Linked Chitosan‐Based Antibacterial Hydrogels with Tough and Adhesive Properties for Wound Dressing | |
Shao et al. | Laponite stabilized endogenous antibacterial hydrogel as wet-tissue adhesive | |
Sun et al. | Multifunctional chitosan-based gel sponge with efficient antibacterial, hemostasis and strong adhesion | |
Liu et al. | Preparation of a nanocomposite hydrogel with high adhesion, toughness, and inherent antibacterial properties by a one-pot method | |
CN110180017B (zh) | 一种多功能双组份水凝胶组织粘合剂的制备方法 | |
CN116328022A (zh) | 可注射型仿贻贝壳聚糖水凝胶粘合剂的制备方法及应用 | |
Yang et al. | Mussel-inspired near-infrared light-responsive gelatin-based hydrogels for enhancing MRSA-infected wound healing | |
CN114177347A (zh) | 一种抗菌释氧功能性凝胶敷料及其制备与应用 | |
Bu et al. | Recent trends in natural polymer-based hydrogels for biomedical applications | |
Wang et al. | Double Cross-Linked Hydrogel Dressings Based on Triblock Copolymers Bearing Antifreezing, Antidrying, and Inherent Antibacterial Properties | |
CN114015078A (zh) | 一种pH自调节双响应水凝胶及其合成方法和用途 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |