中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (16): 2528-2534.doi: 10.3969/j.issn.2095-4344.3147

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

用于慢性伤口羧甲基壳聚糖/氧化葡甘聚糖/三七总皂苷复合海绵的制备及性能评价

李  洁1,许楗桢1,胡  萍1,雷琪琪1,张文柠1,敖宁建1 ,2   

  1. 1暨南大学生命科学技术学院,广东省广州市  510632;2广东省教育厅生物材料重点实验室,广东省广州市  510632
  • 收稿日期:2020-04-25 修回日期:2020-04-27 接受日期:2020-05-22 出版日期:2021-06-08 发布日期:2021-01-07
  • 通讯作者: 敖宁建,研究员,博(硕)士生导师,暨南大学生命科学技术学院,广东省广州市 510632;广东省教育厅生物材料重点实验室,广东省广州市 510632
  • 作者简介:Li Jie, Master candidate, College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong Province, China Xu Jianzhen, Master, Engineer, College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong Province, China Li Jie and Xu Jianzhen contributed equally to this article.
  • 基金资助:
    广东省科技厅科技计划资助项目(2017A020211006),项目负责人:敖宁建;国家自然科学基金(20976068),项目负责人:敖宁建

Preparation and performance evaluation of carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng compound sponge dressing for chronic wound

Li Jie1, Xu Jianzhen1, Hu Ping1, Lei Qiqi1, Zhang Wenning1, Ao Ningjian1, 2    

  1. 1College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong Province, China; 2Key Laboratory of Biomaterials of Guangdong Education Department, Guangzhou 510632, Guangdong Province, China 
  • Received:2020-04-25 Revised:2020-04-27 Accepted:2020-05-22 Online:2021-06-08 Published:2021-01-07
  • Contact: Ao Ningjian, Researcher, Master’s and doctoral supervisor, College of Life Science and Technology, Jinan University, Guangzhou 510632, Guangdong Province, China; Key Laboratory of Biomaterials of Guangdong Education Department, Guangzhou 510632, Guangdong Province, China
  • About author:李洁,女,1997年生,云南省西双版纳傣族自治州勐海县人,暨南大学在读硕士,主要从事生物医用材料研发与创伤修复研究。 许楗桢,男,1993年生,广西壮族自治区南宁市人,汉族,暨南大学毕业,硕士,工程师,主要从事新型医用高分子材料与医疗器械产品研发工作。
  • Supported by:
    a grant from Science and Technology Plan of Guangdong Provincial Department of Science and Technology, No. 2017A020211006 (to ANJ); the National Natural Science Foundation of China, No. 20976068 (to ANJ)

摘要:

文题释义:
慢性伤口:是指皮肤经创伤后无法及时地自我修复达到正常解剖和功能上的完整状态的伤口,在医学临床上多指各种原因造成的创面在经过6周标准医疗治疗后未能愈合或无愈合倾向。创伤修复时间与伤口大小、病因、个体一般健康状况等多种因素有关。慢性伤口主要划分为静脉性溃疡、动脉性溃疡、糖尿病性溃疡、创伤性溃疡、压力性溃疡5类常见类型。
指纹图谱:是指利用分析科学、中药学、分离科学、化学和生物信息学等多学科交叉的综合技术手段,对复杂物质组成体系的化学信息进行整体表征和评价的方法,是建立中药质量标准体系中的中药环节。使用此方法可以全面地反映出提取物中的化学成分及含量。

背景:前期研究显示,羧甲基壳聚糖/氧化葡甘聚糖复合海绵可作为载药性慢性伤口敷料的优良基材。
目的:制备羧甲基壳聚糖/氧化葡甘聚糖/三七总皂苷复合海绵,评估其理化性能与生物相容性。
方法:采用高碘酸钠氧化制备氧化葡甘聚糖;从三七超细粉中提取出三七总皂苷。先加入羧甲基壳聚糖与氧化葡甘聚糖作为混合原料,再分别加入占混合体系体积2%,6%,10%的三七总皂苷,采用冷冻干燥的方法制备羧甲基壳聚糖/氧化葡甘聚糖/三七总皂苷复合海绵,采用扫描电镜观察复合海绵的微观结构,检测复合海绵的孔隙率、蒸气透过率、三七总皂苷释放度、细胞相容性、抗菌性能与急性全身毒性反应。
结果与结论:①扫描电镜显示,复合海绵内部有许多孔洞饱满、分布均匀的孔隙,三七总皂苷稳定均匀地附着在海绵的孔洞的内壁及连接处;②随着三七总皂苷比例的增加,复合海绵的吸水率、孔隙率与蒸气透过率逐渐增加;③3种复合海绵中的绝大部分三七总皂苷体外在13 h内可高效地释放出来;④体外培养3 d内,3种复合海绵上培养的成纤维细胞增殖率均在95%以上;⑤3种复合海绵对大肠杆菌与金黄色葡萄球菌均有抑制作用;3种复合海绵无急性全身毒性反应;⑥结果表明,羧甲基壳聚糖/氧化葡甘聚糖/三七总皂苷复合海绵有望成为优良的医用慢性伤口敷料。

关键词: 材料, 三七总皂苷, 羧甲基壳聚糖, 氧化葡甘聚糖, 复合海绵, 慢性伤口, 生物安全性

Abstract: BACKGROUND: Previous studies have shown that carboxymethyl chitosan/oxidized glucomannan composite sponge can be used as an excellent substrate for drug-loaded chronic wound dressings.
OBJECTIVE: To prepare carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge and evaluate its physical and chemical properties and biocompatibility.
METHODS: Oxidized glucomannan was prepared by sodium periodate oxidation. Panax notoginseng saponins were extracted from Panax notoginseng powder. Carboxymethyl chitosan and oxidized glucomannan were first added as mixed raw materials, and then added separately to account for mixing system 2%, 6%, 10% of Panax notoginseng saponins. Freeze-drying method was used to prepare carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge. Scanning electron microscope was utilized to observe the microstructure of the composite sponge. Porosity, steam permeability, total saponin release rate of Panax notoginseng, cell compatibility, antibacterial properties and acute systemic toxicity were detected.
RESULTS AND CONCLUSION: (1) Scanning electron microscope showed that there were many pores in the composite sponge that were full and evenly distributed. The total saponins of Panax notoginseng were stably and evenly attached to the inner walls and joints of the pores of the sponge. (2) As the proportion of total saponins of Panax notoginseng increased, the water absorption rate, porosity, and steam permeability gradually increased. (3) The vast majority of the total saponins of Panax notoginseng in the three kinds of composite sponges could be efficiently released in 13 hours in vitro. (4) Within 3 days after in vitro culture, the proliferation rate of fibroblasts was more than 95%. (5) Three kinds of compound sponges have an inhibitory effect on E. coli and Staphylococcus aureus, but do not have acute systemic toxicity. (6) The results show that carboxymethyl chitosan/oxidized glucomannan/Panax notoginseng composite sponge is expected to be an excellent medical chronic wound dressing.

Key words: material, Panax notoginseng, carboxymethyl chitosan, oxidized glucomannan, composite sponge, chronic wound, biosafety

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