Youn Hwa Shik, Shin Tae Joo
Pohang Accelerator Laboratory, POSTECH, 31 San, Hyoja-dong, Nam-ku, Pohang, KyungBuk 790-784, Korea.
J Microsc. 2007 Nov;228(Pt 2):107-9. doi: 10.1111/j.1365-2818.2007.01833.x.
We have observed the internal structure of human hair shafts with a transmission Zernike phase contrast hard X-ray microscope. Due to the high spatial resolution and the high contrast of the microscope, we could image scales, macrofibrils, medulla and melanin without staining. The structure of a black hair shaft is compared with that of a white one.