WO2020259486A1 - 一种具有自愈合功能的丝胶水凝胶及其制备方法和应用 - Google Patents
一种具有自愈合功能的丝胶水凝胶及其制备方法和应用 Download PDFInfo
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- WO2020259486A1 WO2020259486A1 PCT/CN2020/097675 CN2020097675W WO2020259486A1 WO 2020259486 A1 WO2020259486 A1 WO 2020259486A1 CN 2020097675 W CN2020097675 W CN 2020097675W WO 2020259486 A1 WO2020259486 A1 WO 2020259486A1
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- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/40—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material
- A61L27/44—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix
- A61L27/46—Composite materials, i.e. containing one material dispersed in a matrix of the same or different material having a macromolecular matrix with phosphorus-containing inorganic fillers
-
- 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/50—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
- A61L27/52—Hydrogels or hydrocolloids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
- C08B37/0084—Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H1/00—Macromolecular products derived from proteins
-
- 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
-
- 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
- C08J2389/00—Characterised by the use of proteins; 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
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/04—Alginic acid; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/325—Calcium, strontium or barium phosphate
Definitions
- the Chinese patent document with the application publication number CN 105268029 A discloses a method for preparing an injectable and self-healing natural polymer hydrogel for bone repair.
- sodium alginate and soluble periodate are combined.
- the aldehyde-based functionalized sodium alginate is generated by oxidation reaction, then calcium hydroxide and phosphoric acid are reacted to form calcium phosphate bone cement, and then the calcium phosphate bone cement is compounded with ethylene glycol chitosan, and then the aldehyde-based functionalized sodium alginate is combined
- It is prepared by Schiff base reaction in phosphate buffer solution.
- this technical solution needs to regulate pH when synthesizing calcium phosphate bone cement, and there is a certain gap between the crystallinity and calcium-phosphorus ratio of apatite in the organism, and the effect of bone repair may be poor.
- the present invention discloses a preparation method of sericin hydrogel with self-healing function.
- the prepared sericin hydrogel has excellent self-healing function and mechanical properties, and is especially suitable for Used to promote osteogenic function.
- a preparation method of sericin hydrogel with self-healing function includes the following steps:
- Sericin is a kind of natural macromolecular protein wrapped on the surface of silk fibroin. It has good biocompatibility and easy processing. It can be easily made into fibers, microspheres, films, hydrogels and other forms. material. In addition, sericin has a large number of polar groups (hydroxyl, carboxyl, and amino). This composition and structure endow sericin with the characteristics of easy cross-linking, controllable structure, and good biocompatibility. The carboxyl group of sericin itself can bind calcium ions well, so as to carry out electrostatic adsorption with nano-hydroxyapatite particles.
- the sericin is extracted from lower corner cocoons, waste silk or recycled spun silk fabric products; therefore, the production cost of the preparation process can be greatly reduced.
- the concentration of the sericin/dimethyl sulfoxide solution is 100-300 mg/mL;
- the concentration of the adipic acid dihydrazide/dimethyl sulfoxide solution is 300-800 mg/mL;
- the adjustment of the amount of adipic acid dihydrazide will affect the degree of crosslinking of the sericin hydrogel with self-healing function.
- the amount is lower than the above amount, the ratio of sericin amination is low, resulting in poor crosslinking degree and self-healing efficiency of sericin hydrogel; when the amount is higher than the above amount, the cost will increase, and it will be due to the overproduction of the product. Reaction affects biocompatibility.
- the concentration of the adipic acid dihydrazide/dimethyl sulfoxide solution is 600 mg/mL.
- the concentration of the sodium alginate aqueous solution is 5-20 mg/mL;
- the molar ratio of sodium alginate to sodium periodate is 1:0.5-1;
- the volume ratio of the ethylene glycol to the sodium alginate aqueous solution is 0.5 to 1.5: 100;
- the dialysis treatment in step (2) and step (3) uses a dialysis bag with a molecular weight cut-off of 3500D. It is found through experiments that the aminated sericin and oxidized algae after the two-step special specification dialysis bag are used Sodium, the cross-linking of the two is better.
- step (3)
- the concentration of aminated sericin is 50-200 mg/mL; as the concentration of the aminated sericin increases, the compactness of the internal microstructure of the hydrogel is enhanced to a certain extent, and the mechanical properties are increased ,
- the gel time is significantly shortened; below the above concentration range, the morphology formed is mainly loose and uneven; and above the above concentration range, the gel speed is too fast will also lead to incomplete crosslinking, and the morphology is too tight and not It is flat and uniform; further preferably, the concentration of the aminated sericin is 90-150 mg/mL.
- the concentration of oxidized sodium alginate in the solution is 50-200 mg/mL; through experiments, it is found that as the concentration of the sodium alginate aqueous solution increases, the compactness of the internal microstructure of the hydrogel is increased to a certain extent, and the mechanical properties are increased , The gel time is significantly shortened; below the above concentration range, the morphology formed is mainly loose and uneven; and above the above concentration range, the gel speed is too fast will also lead to incomplete crosslinking, and the morphology is too tight and not It is flat and uniform; further preferably, the concentration of the oxidized sodium alginate is 90-150 mg/mL.
- the sericin hydrogel prepared by the invention has excellent self-healing function, the healing process does not require external stimuli (pH, light, temperature, chemical reagents, etc.); as well as excellent compression resistance and toughness, and better mechanical properties. Compared with other common natural macromolecular materials (such as gelatin), the hydrogels have better overall performance, and have better binding effects with hydroxyapatite.
- the preparation process of the invention has the advantages of low energy consumption, high biological safety, low price, simple and convenient operation, short time, mild reaction conditions, and high yield.
- Figure 1 is a microphotograph of the sericin hydrogel prepared in Example 1;
- Ultrasound for 30 minutes mix the aminated sericin solution mixed with hydroxyapatite and the oxidized sodium alginate solution at a volume ratio of 1:1 to control the amino groups in the aminated sericin and the aldehydes in the oxidized sodium alginate
- the molar ratio of the base is 1:1, and a self-healing sericin hydrogel with excellent mechanical properties is obtained.
- the preparation process is the same as in Example 1, except that 6 g of sericin powder is replaced with 6 g of gelatin powder.
- the preparation process is the same as in Example 1, except that hydroxyapatite powder is not added.
- the preparation process is the same as that in Comparative Example 2, except that 6 g of sericin powder is replaced with 6 g of gelatin powder.
- the maximum stress of the hydrogel prepared in this comparative example is 92 kPa and the maximum strain is 47%.
- the preparation process is the same as in Example 1, except that the added amount of hydroxyapatite powder is replaced by 20% and 60% of the sericin mass respectively.
- the sericin hydrogel prepared in this example has excellent self-healing performance, and the healing efficiency reaches 76.5% after 12 hours.
- the maximum stress of the hydrogel prepared in this example is 173 kPa and the maximum strain is 38%.
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- Transplantation (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dermatology (AREA)
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- Composite Materials (AREA)
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Abstract
Description
Claims (11)
- 一种具有自愈合功能的丝胶水凝胶的制备方法,其特征在于,包括如下步骤:(1)以丝胶为原料,制备胺基化丝胶;(2)以海藻酸钠为原料,制备氧化海藻酸钠;(3)将步骤(1)制备的胺基化丝胶、羟基磷灰石与水混合,得到混合溶液;(4)将步骤(2)制备的氧化海藻酸钠与水混合得到溶液,再将所述溶液与步骤(3)所述混合溶液混合,经席夫碱反应得到所述具有自愈合功能的丝胶水凝胶。
- 根据权利要求1所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于,步骤(1)中,所述胺基化丝胶的具体制备工艺如下:向丝胶/二甲基亚砜溶液中,加入羰基二咪唑充分反应,将混合液倒入己二酸二酰肼/二甲基亚砜溶液中,反应12~36h,反应液经透析处理、冷冻干燥后得到胺基化丝胶。
- 根据权利要求2所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于:所述丝胶由下角茧、废丝或回收再生的绢丝织物品中提取得到。
- 根据权利要求2所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于:所述丝胶/二甲基亚砜溶液的浓度为100~300mg/mL;所述己二酸二酰肼/二甲基亚砜溶液的浓度为300~800mg/mL;所述羰基二咪唑、丝胶和己二酸二酰肼的质量比为1:1~2:10~20。
- 根据权利要求1所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于,步骤(2)中,所述氧化海藻酸钠的具体制备工艺如下:向海藻酸钠水溶液中,加入高碘酸钠,室温下避光反应2~6h,再加入乙二醇终止反应,反应液经透析、冷冻干燥后得到氧化海藻酸钠。
- 根据权利要求5所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于:所述海藻酸钠水溶液的浓度为5~20mg/mL;所述海藻酸钠与高碘酸钠的摩尔比为1:0.5~1;所述乙二醇与所述海藻酸钠水溶液的体积比为0.5~1.5:100。
- 根据权利要求1所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于,步骤(3)中:所述胺基化丝胶与羟基磷灰石的质量比为1:0.1~0.6;所述混合溶液中,胺基化丝胶的浓度为50~200mg/mL。
- 根据权利要求1所述的具有自愈合功能的丝胶水凝胶的制备方法,其特征在于,步骤(4)中:所述溶液中氧化海藻酸钠的浓度为50~200mg/mL;所述胺基化丝胶中的氨基与所述氧化海藻酸钠中的醛基的摩尔比为0.5~2:1。
- 一种根据权利要求1~8任一权利要求所述的方法制备的具有自愈合功能的丝胶水凝胶。
- 一种根据权利要求9所述的具有自愈合功能的丝胶水凝胶在促成骨功能中的应用。
- 一种根据权利要求9所述的具有自愈合功能的丝胶水凝胶在制备具有促成骨功能的高分子材料中的应用
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| CN201910566405.4A CN110283337B (zh) | 2019-06-27 | 2019-06-27 | 一种具有自愈合功能的丝胶水凝胶及其制备方法和应用 |
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| CN120420517A (zh) * | 2025-05-08 | 2025-08-05 | 苏州工学院 | 一种丝胶蛋白/细菌纤维素/纳米羟基磷灰石复合凝胶及其制备方法和应用 |
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| CN110283337B (zh) * | 2019-06-27 | 2020-07-24 | 浙江大学 | 一种具有自愈合功能的丝胶水凝胶及其制备方法和应用 |
| CN113336974B (zh) * | 2021-07-21 | 2022-06-10 | 浙江大学 | 一种具有流动性、易降解的组氨酸基配位水凝胶及其制备方法和应用 |
| CN114984326B (zh) * | 2022-06-02 | 2023-12-05 | 中国科学院大学宁波华美医院 | 一种多重交联的可注射骨修复水凝胶制备材料及其制备方法 |
| CN116999617A (zh) * | 2023-06-25 | 2023-11-07 | 西南医科大学附属口腔医院 | 一种丝胶蛋白-羟基磷灰石/海藻酸钠载药微球的制备方法 |
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| US20180133368A1 (en) * | 2016-11-15 | 2018-05-17 | The Board Of Regents Of The University Of Texas System | 3D Printed Ti-6Al-4V Scaffolds with Hydrogel Matrix |
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| CN120420517A (zh) * | 2025-05-08 | 2025-08-05 | 苏州工学院 | 一种丝胶蛋白/细菌纤维素/纳米羟基磷灰石复合凝胶及其制备方法和应用 |
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