表面微损伤甲壳素纳米纤维的手性组装自组装及其承载功能
Chiral nematic self-assembly of minimally surface damaged chitin nanofibrils and its load bearing functions
摘要：
甲壳素是自然界中最丰富的生物材料之一，每年生产10^10吨，作为分层组织的纳米纤维填料，以增强节肢动物的外骨骼。这种绿色、廉价的生物材料由于其在生物医学材料增强方面的潜在应用而引起了人们的极大关注。尽管如此，它的实际用途是有限的，因为几丁质纳米纤维的提取需要涉及苛刻的化学处理的表面改性，导致难以再现其天然原型分级结构，即手性手性相。在这里，我们开发了一种无化学蚀刻的方法，使用钙离子，称为自然的方式，分解几丁质纳米纤维，同时保持自组装的必要部分，最终导致在聚合物基质中的几丁质天然手性结构的再现。这种手性甲壳素纳米结构特别地增韧复合材料。我们所得到的甲壳素材料的手性双相可以有助于理解和使用自然界中的增强策略。
英文摘要：
Chitin is one of the most abundant biomaterials in nature, with 10^10 tons produced annually as hierarchically organized nanofibril fillers to reinforce the exoskeletons of arthropods. This green and cheap biomaterial has attracted great attention due to its potential application to reinforce biomedical materials. Despite that, its practical use is limited since the extraction of chitin nanofibrils requires surface modification involving harsh chemical treatments, leading to difficulties in reproducing their natural prototypal hierarchical structure, i.e. chiral nematic phase. Here, we develop a chemical etching-free approach using calcium ions, called natural way, to disintegrate the chitin nanofibrils while keeping the essential moiety for the self-assembly, ultimately resulting in the reproduction of chitins natural chiral structure in a polymeric matrix. This chiral chitin nanostructure exceptionally toughens the composite. Our resultant chiral nematic phase of chitin materials can contribute to the understanding and use of the reinforcing strategy in nature.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
