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首页> 外文期刊>Journal of Applied Polymer Science >Fabrication of porous three-dimensional fibroin structures through a freezing process
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Fabrication of porous three-dimensional fibroin structures through a freezing process

机译：通过冷冻工艺制造多孔三维纤维素结构

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摘要

Silk fibroin has been investigated for various biomedical applications. In this research, through a green process, without using freeze-drying, which is energy consuming during a single step process that is completely aqueous-based, without using any additional materials during or after structure formation, water-insoluble silk fibroin sponges have been obtained; these achieved only through keeping fibroin solutions frozen at a suitable temperature for a sufficient time. The effect of solution concentration and freezing conditions on the pore morphology and size, microstructure, and mechanical properties was investigated. A discussion has been proposed for the formation of structures. The average measured pore sizes were approximately from 4 to 77m. Elastic modules of the investigated structures varied from about 100 to 900 kPa. Cyclic mechanical tests were performed; the remaining strain of the structures reached to about 1%. A less considered issue which can be considered as the possible significant change of the mechanical behavior of as-prepared samples after one or more times of loading and unloading should be noted. The used method in this study as a cost effective and convenient procedure could have the potential for application in the production of porous structures for biomedical applications. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46537.
机译：已对各种生物医学应用调查丝纤维蛋白。在本研究中，通过绿色工艺，不使用冻干，这在单一步骤过程中是完全基于水性的，而不使用结构地层期间或之后的任何额外材料，水不溶性丝纤维素海绵已经存在获得;这些只是通过将纤维素溶液保持在合适的温度下冷冻足够的时间来实现。研究了溶液浓度和冷冻条件对孔形态和尺寸，微观结构和机械性能的影响。已提出讨论形成结构。平均测量的孔径约为4至77米。调查结构的弹性模块从约100〜900kPa变化。进行循环机械测试;结构的剩余菌株达到约1％。在应当注意到应当注意到在一次或多次装卸后，可以认为可以认为可以认为可以被视为制备样品的机械行为的可能显着变化。本研究中的使用方法作为成本效益和方便的程序可能具有在生产生物医学应用的多孔结构中的应用。 （c）2018 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2018,135,46537。

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