中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (10): 1532-1538.doi: 10.3969/j.issn.2095-4344.2017.10.010

• 细胞外基质材料 extracellular matrix materials • 上一篇    下一篇

鱼皮胶原纤维重组构建纳吸棉的工艺特征  

李  杰1,刘东艳2,秦  松2   

  1. 1青岛科技大学,山东省青岛市  266000;2中科院烟台海岸带研究所,山东省烟台市  264000
  • 收稿日期:2016-12-13 出版日期:2017-04-08 发布日期:2017-05-08
  • 通讯作者: 秦松,博士,泰山学者,研究员,博士生导师,中科院烟台海岸带研究所,山东省烟台市 264000
  • 作者简介:李杰,男,1990年生,山东省滕州市人,汉族,2017年青岛科技大学毕业,工学硕士,主要从事水生生物医用生物材料的研究。
  • 基金资助:

    山东省科技发展计划(2015GSF11503)

Optimization of fiber reconstituted technology for preparation of nasopore using fish scale collagen

Li Jie1, Liu Dong-yan2, Qin Song2   

  1. 1 Qingdao University of Science and Technology, Qingdao 266000, Shandong Province, China; 2 Yantai Institute of Coastal Zone Research, CAS, Yantai 2 64000, Shandong Province, China
  • Received:2016-12-13 Online:2017-04-08 Published:2017-05-08
  • Contact: Qin Song, Doctor, Investigator, Doctoral supervisor, Yantai Institute of Coastal Zone Research, CAS, Yantai 264000, Shandong Prov
  • About author:Li Jie, Master, Qingdao University of Science and Technology, Qingdao 266000, Shandong Province, China
  • Supported by:

    the Science and Technology Development Plan of Shandong Province, No. 2015GSF115032

摘要:

文章快速阅读:

 

 

文题释义:
纤维重组
:是指天然胶原蛋白单分子能在适宜的体外条件下,经过有规则的分子重排,形成具有与生物体内结构类似的胶原纤维。胶原的体外纤维重组受诸多因素的影响,如 pH、温度、离子种类和离子强度(NaCl浓度)、胶原质量浓度等。不同条件下,重组胶原纤维的粒径和粒径分布有较大差异。重组胶原纤维粒径越大、粒径分布越均一,则胶原的热稳定性能、耐酶降解性能以及材料形态稳定性能越好。
纳吸绵:功能性鼻内镜鼻窦手术中,由于鼻腔解剖结构较复杂,鼻部血管较丰富,选择恰当的填塞止血材料至关重要。纳吸绵是第4代可降解高膨胀止血材料,对载膜刺激小,可保护和促进载膜愈合,能有效地保护创面,达到良好的止血压迫效果,并且患者基本无不适或痛苦较小,是较好的鼻腔填塞止血材料。


背景:鱼源胶原基医用生物材料在热稳定性、体内降解稳定性以及体内材料形态学稳定性等方面仍存在明显不足,利用技术手段提高淡水鱼类胶原海绵材料的密度和胶原分子间结合的紧密程度进而提高材料性能以满足应用需要成为拓展鱼源胶原应用领域的当务之急。
目的:探究鱼皮胶原纤维重组构建纳吸棉的工艺条件。
方法:以罗非鱼鱼皮为原料,在低于胶原蛋白变性温度的条件下提取酶促溶性胶原蛋白,以胶原蛋白纤维重组率为考察指标,研究胶原蛋白纤维重组工艺并对其进行参数优化,确定了鱼皮胶原纤维重组构建纳吸棉的最佳工艺。以此为基础进行重组纳吸棉的红外光谱和微观结构分析。
结果与结论:通过单因素试验和正交试验得出最佳鱼皮胶原纤维重组反应条件为:胶原质量浓度为1 g/L,离子强度(NaCl浓度)为65 mmol/L,pH值7.4,体系温度为20 ℃,重组时间为10 h,在该条件下得到的纤维重组率高达68.6%。在此基础上制备的纳吸棉具有细线状纤维构成的多孔网状结构,且其三螺旋结构完整,是一种性能优良的腔内止血材料。

ORCID: 0000-0002-1192-2276(李杰)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 生物材料, 材料相容性, 胶原, 纤维重组, 纳吸棉

Abstract:

BACKGROUND: Nowadays, fish collagen biomedical materials still exhibit obvious deficiency in thermal stability, in vivo degradation stability and in vivo material morphology stability. To expand the application of fish source collagen, it is urgent to improve the material performance by increasing the density and collagen molecule tightness of freshwater fish collagen sponge materials using technique methods.
OBJECTIVE: To optimize the reconstitute process for nasopore preparation using fish scale collagen.
METHODS: The optimal process for nasopore preparation through the reconstitution of fish scale collagen was ascertained by taking tilapia fish skin as a raw material to extract enzymatic soluble collagen at a temperature lower than the collagen denaturation temperature and recombinant rate of collagen fibers as index. Optimization of the conditions for nasopore preparation was carried out using single factor test and orthogonal test. The prepared nasopore was analyzed through infrared spectroscopy and microstructure analysis.
RESULTS AND CONCLUSION: The optimal conditions for nasopore preparation were determined through the single factor test and orthogonal test as follows: 20 ℃ for 10 hours at pH 7.4 using a mixture of 65 mmol/L NaCl and 1 g/L collagen, by which the reconstitute rate of collagen fibers was up to 68.6%. The prepared nasopore is characterized by a refined porous structure constituted by threadlike collagen fibers, and has complete three-dimensional spiral structure, which is a potential intracavitary hemostatic material with fine properties.

Key words: Tilapia, Collagen, Hemostasis, Biocompatible Materials, Tissue Engineering

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