Development of measurement system with atomic force microscope for cell wall microfibril angle

2014 Fiscal Year Final Research Report

• Project/Area Number: 25660132
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Tokyo University of Agriculture and Technology
• Principal Investigator: SATO Keiichi 東京農工大学, (連合)農学研究科(研究院), 准教授 (90178723)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 分子間力プローブ顕微鏡 / 原子間力顕微鏡 / セルロースミクロフィブリル / ミクロフィブリル傾角 / ヒノキ仮道管

Outline of Final Research Achievements

The atomic force microscope (AFM) was applied to observation of cell walls of hinoki (Chamaecyparis obtuse) with the aim of studies on ability of application of AFM to measurement of physical properties of wood materials such as microfibril angles. Oval shaped structures (150-600 nm longer radius, 100-300 nm minor radius) and round shape structures (100-300 nm radius) were observed on the section of tracheid cut with a sliding microtome. If a bundle of microfibrils has round shaped cross-section, the structure appears as oval shape with respect to the microfibril angle. Then, the structure of the oval shape or round shape contains information on microfibril angle.

Free Research Field

植物材料物性学