Ee Liang Ying, Yau Li Sam Fong
Department of Chemistry, National University of Singapore Lower Kent Ridge Road, Science Drive 4, S5-02-03 Singapore 117549
Nanoscale Adv. 2020 Dec 28;3(5):1167-1208. doi: 10.1039/d0na00408a. eCollection 2021 Mar 9.
Emerging cellulose nanomaterials extracted from agricultural biomasses have recently received extensive attention due to diminishing fossil resources. To further reduce the carbon footprints and wastage of valuable resources, additive manufacturing techniques of new nanocellulosic materials have been developed. Studies on the preparation and characterization of 3D-printable functional nanocellulosic materials have facilitated a deeper understanding into their desirable attributes such as high surface area, biocompatibility, and ease of functionalization. In this critical review, we compare and highlight the different methods of extracting nanocellulose from biorenewable resources and the strategies for transforming the obtained nanocellulose into nanocomposites with high 3D printability. Optimistic technical applications of 3D-printed nanocellulose in biomedical, electronics, and environmental fields are finally described and evaluated for future perspectives.
由于化石资源日益减少，从农业生物质中提取的新型纤维素纳米材料近来受到广泛关注。为进一步减少碳足迹并避免宝贵资源的浪费，人们已开发出新型纳米纤维素材料的增材制造技术。对3D可打印功能性纳米纤维素材料的制备与表征研究，有助于更深入地了解其诸如高比表面积、生物相容性和易于功能化等理想特性。在这篇综述中，我们比较并重点介绍了从生物可再生资源中提取纳米纤维素的不同方法，以及将所得纳米纤维素转化为具有高3D可打印性的纳米复合材料的策略。最后描述并评估了3D打印纳米纤维素在生物医学、电子和环境领域的乐观技术应用前景。
