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Published on: January 21, 2021
Structural analysis of human hair fibers under the ultra-high voltage electron microscope
Kenzo Koike1, Osamu Yoshida, Akira Mamada
1Tokyo Research Laboratories, Kao Corporation, Sumida, Tokyo, Japan 131-8501.
Abstract:
Three-dimensional structural analyses of human hair fibers and comparison of the different fibers were tried by using the Ultra-high Voltage Electron Microscope (UHVEM). The analysis condition, sample preparation, and a machine state were adjusted to the suitable condition for tilting observation of from -70 degree to +70 degree, at 2 degrees intervals. The tomography of hair fiber was successfully reconstructed from the different angle pictures with IMODE software in a computer. By using UHVEM, the various human hair fibers from Japanese and Caucasians were investigated and discussed about their structures.
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