The study of electret behaviour of rat skin with thermally stimulated discharge (TSD)

Author

Lili, Cui ; Jian, Jiang ; Zhongfu, XIA ; Chengrong, Song

Author_Institution

Sch. of Pharm., Second Mil. Med. Univ., Shanghai, China

fYear

1999

fDate

1999

Firstpage

241

Lastpage

243

Abstract

Thermally stimulated discharge (TSD) was used to study the changes of the dielectric properties of rat skin before and after charging, the properties of space charge and the dipole in the skin before and after charging. It was found that a) before charging, the current spectra appeared with several current peaks with different energy level distribution in the range RT-150°C, which was related to the discharging of space charge and relaxation of the dipole during the transition of lamellar lipid and the denaturation of the protein of the stratum corneum (SC); b) positive charging caused a large increase of the intensity of TSD peak and a shift of the peak position to low temperature, due to the disordering of intercellular lipid bilayer and protein structure, and interaction between some dipole and space charges

Keywords

bioelectric phenomena; biological effects of fields; cellular biophysics; dielectric relaxation; lipid bilayers; molecular biophysics; proteins; skin; space charge; surface charging; thermally stimulated currents; thermoelectrets; 20 to 150 C; charging; current spectra; denaturation; dielectric properties; electret behaviour; energy level distribution; intercellular lipid bilayer; lamellar lipid; positive charging; protein; protein structure; rat skin; relaxation; space charge; stratum corneum; thermally stimulated discharge; Dielectrics; Electrets; Electrodes; Epidermis; Lipidomics; Physics; Proteins; Skin; Space charge; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on

Conference_Location

Athens

Print_ISBN

0-7803-5025-1

Type

conf

DOI

10.1109/ISE.1999.831988

Filename

831988