This paper is a written summary of the keynote lecture presented at the 13th Annual Meeting of the Northern European Network on Wood Science and Engineering (WSE2017). The lecture summarized work performed at the Forest Products Laboratory (Madison, WI, USA) over the past 10 years related to understanding diffusion through cell walls. The highlighted work includes advances in electrical measurements and synchrotron-based X-ray fluorescence microscopy. The paper also discusses how diffusion is related to many wood damage mechanisms. The ultimate goal of the presented research is to develop new methods of wood protection through an enhanced understanding of diffusion and its role in wood damage mechanisms.
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