Accurate measurement of strength and stiffness of a single cellulose nanofiber, clarification of atomic-scale structure of nanofiber surface, and analysis of cross-sectional shape and length distribution using Atomic Force Microscope.
<Representative Papers>
An Ultrastrong Nanofibrillar Biomaterial: The Strength of Single Cellulose Nanofibrils Revealed via Sonication-Induced Fragmentation
The Crystallinity of Nanocellulose: Dispersion-Induced Disordering of the Grain Boundary in Biologically Structured Cellulose

Wood-derived "Transparent Papers" obtained by drying cellulose nanofiber dispersions exhibit excellent characteristics such as low coefficiency of thermal expansion comparable to ceramics, and oxygen gas barrier property. Utilizing these features, we are aiming for next-generation electronic devices and high-performance packaging materials.
<Representative Papers>
Transparent and High Gas Barrier Films of Cellulose Nanofibers Prepared by TEMPO-Mediated Oxidation
Nematic structuring of transparent and multifunctional nanocellulose papers

Nanocellulose/plastic composite materials can improve mechanical properties while reducing the use of plastics. Also, we are developing highly functional nanocellulose/plastic composite materials through environmentally-friendly emulsion templating approach.
<Representative Papers>
Surface Engineering of Ultrafine Cellulose Nanofibrils toward Polymer Nanocomposite Materials
Facile Route to Transparent, Strong, and Thermally Stable Nanocellulose/Polymer Nanocomposites from an Aqueous Pickering Emulsion

Nanocellulose aerogels and cryogels are expected to be applied to housing and automotive windows due to their low thermal conductivity and high light transmission. We are tackling to solve practical issues for social implementation of these promising materials.
<Representative Papers>
Aerogels with 3D Ordered Nanofiber Skeletons of Liquid-Crystalline Nanocellulose Derivatives as Tough and Transparent Insulators
Mechanically Strong, Scalable, Mesoporous Xerogels of Nanocellulose Featuring Light Permeability, Thermal Insulation, and Flame Self-Extinction