Structure Analysis of Human Hair Fiber with High Voltage Electron Microscopy (HVEM)

Kenzo Koike, Akira Mamada, Shinobu Nagase, Osamu Yoshida and Akio Takaoka

Abstract: Three-dimensional structural analyses of human hair fibers and comparison of the different fibers were tried by using the High Voltage Electron Microscopy (HVEM).
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 HVEM, the various human hair fibers from Japanese and Caucasians were investigated and discussed about their structures.

Key words: hair, three-dimensional structure, tomography, hair-care, effect