BACKGROUND: Wood science and nanomaterials science interact together in two different aspects; a) fabrication of lignocellulosic nanomaterials derived from wood and plant-based sources and b) surface or bulk wood modification by nanoparticles. In this review, we attempt to visualize the impact of nanoparticles on the wood coating and preservation treatments based on a thorough registration of the patent databases. METHOD: The study was carried out as an overview of the scientifically most followed trends on nanoparticles utilization in wood science and wood protection depicted by recent universal filed patents. This review is exclusively targeted on the solid (timber) wood as a subject material. RESULTS: Utilization of mainly metal nanoparticles as photoprotection, antibacterial, antifungal, antiabrasive and functional component on wood modification treatments was found to be widely patented. Additionally, an apparent minimization in the emission of volatile organic compounds (VOCs) has been succeeded. CONCLUSION: Bulk wood preservation and more importantly, wood coating, splay the range of strengthening wood dimensional stability and biological degradation, against moisture absorption and fungi respectively. Nanoparticle materials have addressed various issues of wood science in a more efficient and environmental way than the traditional methods. Nevertheless, abundant tests and regulations are still needed before industrializing or recycling these products.

CRC for Nanocellulose Future Composites Department of Mechanical Engineering Inha University Incheon 22212 Korea

Department of Pharmaceutics Jamia Hamdard University New Delhi India

Department of Wood Processing Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic

Department of Wood Science Faculty of Forestry and Wood Technology Mendel University in Brno Brno Czech Republic

University of Natural Resources and Life Sciences Vienna Institute for Natural Materials Technology IFA Tulln Austria

University of Natural Resources and Life Sciences Vienna Institute for Wood Technology and Renewable Materials UFT Austri

References provided by Crossref.org

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Colour Stabilization of Oak, Spruce, Larch and Douglas Fir Heartwood Treated with Mixtures of Nanoparticle Dispersions and UV-Stabilizers after Exposure to UV and VIS-Radiation