Atomic-level imaging in wood cell walls treated with amine-copper solution

2016 Fiscal Year Final Research Report

• Project/Area Number: 26660149
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: Matsunaga Hiroshi 国立研究開発法人森林総合研究所, 木材改質研究領域, 主任研究員 (80391184)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: イメージング / 単原子 / 超高分解能電子顕微鏡 / 木材細胞壁 / 木材保存

Outline of Final Research Achievements

The purpose of this study is to examine the atomic-level imaging of copper in cell walls of tracheid treated with amine copper preservative. FIB (Focused Ion Beam) micro processing and manual sectioning by hand using a box-knife were used to make ultra-thin sections from amine copper treated woods for electron microscopy. The sections were determined by spherical aberration-corrected HAADF-STEM (High-Angle Annular Dark-Field-Scanning Transmission Electron Microscope)-EDX (Energy Dispersive X-ray detector). The results show that manual sectioning in combination with HAADF-STEM-EDX is a powerful tool for observing the atomic-level imaging of copper in wood cell walls.

Free Research Field

木質科学