Arsenic levels were determined in human hair samples collected from a mining and non-mining community in Ghana. Hair samples were digested and analyzed using inductively coupled plasma atomic emission spectrometer (ICP–AES). Elevated levels of arsenic were found in the samples obtained from the mining community, the mean levels in the hair ranged from 0.0142–0.0515 μg/g, whereas arsenic was not...

The permeation and absorption of solutes into human hair are highly relevant to various applications, including the formulation hair-care products, development water pollution control remediation, risk assessment environmental exposure. Based on a detailed introduction structure composition hair, effects properties (structure, composition, charge properties), physicochemical (molecular size, sh...

Human hair keratin films were used in order to examine the e#ects of reducing and oxidizing agents. Thioglycolic acid and sodium bromate were employed as reducing and oxidizing agents, respectively. The white and opaque appearance of the keratin films turned transparent as the concentration of thioglycolic acid increased. However, when followed by the oxidizing treatment, the keratin films retu...

Protein secondary structures in human hair have been studied with ultrabroadband multiplex coherent anti-Stokes Raman scattering (CARS) microspectroscopy. The CARS peak-shift mapping method has been developed and applied to hair samples with and without treatments by chemical reduction and mechanical extension. It clearly visualizes the treatment induced changes in protein secondary structures ...

Oghalai, John S., Jeffrey R. Holt, Takashi Nakagawa, Thomas have been studied in fish, amphibians, reptiles, birds, and M. Jung, Newton J. Coker, Herman A. Jenkins, Ruth Anne rodents (Eatock and Rüsch 1997; Kros 1996; Wu et al. Eatock, and William E. Brownell. Ionic currents and electromoti1995), and electromotility has only been demonstrated in lity in inner ear hair cells from humans. J. Neur...