Nanocellulose, extracted from wood, is an innovative material that combines an ultrafine structure—approximately one ten-thousandth the thickness of a human hair—with strength comparable to that of steel. When incorporated into plastics, nanocellulose enables lightweight yet high-strength composite materials, which have been applied to automotive components. Aiming to achieve both improved fuel efficiency and reduced CO₂ emissions, a future-oriented vehicle incorporating nanocellulose-based components throughout its structure was developed through the NCV (Nano Cellulose Vehicle) project, a large-scale collaborative initiative involving 22 universities and companies, led by Kyoto University.

Nanochitin, extracted from waste resources such as crab shells, is a marine-derived biomass material obtained by applying nanocellulose production technologies. Through interdisciplinary collaborative research, we have revealed its diverse functionalities, often described as being suitable “for application to the skin, for consumption, and for use in plant cultivation.” Representative benefits include enhanced wound healing, promotion of hair growth, and alleviation of dermatitis. Building on these findings, a range of products incorporating nanochitin—such as cosmetics and pet healthcare products—have been successfully commercialized. 

Wood plays a vital role in moisture transport and providing structural support for trees. Consequently, it possesses a dense tissue composition. We are innovating processing techniques by uncovering the intricacies of this tissue structure and leveraging precise control over it. For instance, we are working on methods such as water-jet impregnation, extrusion processing, and rolling processing.

Wood is a natural composite material in which cellulose serves as the structural framework, with lignin and hemicellulose binding and filling the matrix. In contrast, crab shells are natural hybrid materials in which calcium carbonate is mineralized within the interstices of a helicoidal composite formed by chitin and proteins. In both cases, these macromolecules self-assemble into hierarchical structures with remarkable structural sophistication.

Inspired by these natural design principles, we integrate knowledge from interfacial science, supramolecular science, and organic chemistry to develop sustainable materials and manufacturing strategies that harness the resources of both forests and oceans.