Panahi-Sarmad Mahyar, Alikarami Niloofar, Guo Tianyu, Haji Mehri, Jiang Feng, Rojas Orlando J
Department of Wood Science, The University of British Columbia, 2900-2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada.
Bioproducts Institute, University of British Columbia, 2385 Agronomy Rd and East Mall, Vancouver, BC, V6T 1Z4, Canada.
Small. 2024 Nov;20(44):e2403583. doi: 10.1002/smll.202403583. Epub 2024 Jul 28.
Microbial cellulose stands out for its exceptional characteristics in the form of biofilms formed by highly interlocked fibrils, namely, bacterial nanocellulose (BNC). Concurrently, bio-based aerogels are finding uses in innovative materials owing to their lightweight, high surface area, physical, mechanical, and thermal properties. In particular, bio-based aerogels based on BNC offer significant opportunities as alternatives to synthetic or mineral counterparts. BNC aerogels are proposed for diverse applications, ranging from sensors to medical devices, as well as thermal and electroactive systems. Due to the fibrous nanostructure of BNC and the micro-porosity of BNC aerogels, these materials enable the creation of tailored and specialized designs. Herein, a comprehensive review of BNC-based aerogels, their attributes, hierarchical, and multiscale features are provided. Their potential across various disciplines is highlighted, emphasizing their biocompatibility and suitability for physical and chemical modification. BNC aerogels are shown as feasible options to advance material science and foster sustainable solutions through biotechnology.
微生物纤维素因其由高度交错的纤维形成的生物膜形式（即细菌纳米纤维素，BNC）而具有卓越特性。与此同时，基于生物的气凝胶因其轻质、高表面积、物理、机械和热性能而在创新材料中得到应用。特别是，基于BNC的生物气凝胶作为合成或矿物对应物的替代品提供了重大机遇。BNC气凝胶被提议用于从传感器到医疗设备以及热和电活性系统等各种应用。由于BNC的纤维纳米结构和BNC气凝胶的微孔性，这些材料能够实现定制化和专业化设计。本文提供了对基于BNC的气凝胶、其属性、层次结构和多尺度特征的全面综述。强调了它们在各个学科中的潜力，突出了它们的生物相容性以及对物理和化学改性的适用性。BNC气凝胶被证明是推进材料科学并通过生物技术促进可持续解决方案的可行选择。
