PDF(Pubmed)
Abstract：
Chitosan is a biopolymer with unique properties that have attracted considerable attention in various scientific fields in recent decades. Although chitosan is known for its poor electrical and mechanical properties, there is interest in producing chitosan-based materials reinforced with carbon-based materials to impart exceptional properties such as high electrical conductivity and high Young\'s modulus. This study describes the synergistic effect of carbon-based materials, such as reduced graphene oxide and carbon nanotubes, in improving the electrical, optical, and mechanical properties of chitosan-based films. Our findings demonstrate that the incorporation of reduced graphene oxide influences the crystallinity of chitosan, which considerably impacts the mechanical properties of the films. However, the incorporation of a reduced graphene oxide-carbon nanotube complex not only significantly improves the mechanical properties but also significantly improves the optical and electrical properties, as was demonstrated from the photoluminescence studies and resistivity measurements employing the four-probe technique. This is a promising prospect for the synthesis of new materials, such as biopolymer films, with potential applications in optical, electrical, and biomedical bioengineering applications.
摘要：
壳聚糖是一种具有独特性质的生物聚合物，近几十年来在各个科学领域引起了广泛关注。尽管壳聚糖以其较差的电气和机械性能而闻名，人们对生产用碳基材料增强的壳聚糖基材料感兴趣，以赋予特殊的性能，如高导电性和高杨氏模量。这项研究描述了碳基材料的协同效应，如还原的氧化石墨烯和碳纳米管，在改善电气方面，光学，壳聚糖基薄膜的力学性能。我们的发现表明，还原氧化石墨烯的掺入会影响壳聚糖的结晶度，这极大地影响了薄膜的机械性能。然而,加入还原的氧化石墨烯-碳纳米管复合物不仅显著改善了机械性能，而且显著改善了光学和电学性能，如光致发光研究和采用四探针技术的电阻率测量所证明的。这是一个很有前景的新材料的合成，如生物聚合物薄膜，在光学领域的潜在应用，电气,和生物医学生物工程应用。
