Paper Title:
Effects of Pulsed Electric Fields on Phospholipid Molecular Conformation by Raman Spectra
  Abstract

In order to study the sterilization mechanism of pulsed electric fields(PEF) on microorganisms and the interaction between PEF conditions and cell membrane composed of phospholipids, the authors studied the phospholipid molecular conformation changes under various electric fields strength treatments using Raman spectra. It was demonstrated from the Raman spectra that there was little influence of PEF on the conformation of O-C-C-N+ backbone in the choline group of phospholipid. The intensity ratios of I1096/I1062 and I1096/I1126 represented the gauche/ trans ratioof C-C vibrations, but the first was increased directly, while the other one was increased firstly and then decreased with increasing electric fields strengths but the ratio was still higher than that of the control sample. I2885/I2850 represeted order/ disorder of chain-chain interactions which was decreased with increasing electric fields strengths. It was indicated that the intermolecular disordering in hydrocarbon chain of the lipid lattice was increased and the membrane fluidity was enhanced after PEF treatments.

  Info
Periodical
Edited by
Robert Zhu
Pages
329-333
DOI
10.4028/www.scientific.net/AMM.140.329
Citation
X. Jia, X. A. Zeng, "Effects of Pulsed Electric Fields on Phospholipid Molecular Conformation by Raman Spectra", Applied Mechanics and Materials, Vol. 140, pp. 329-333, 2012
Online since
November 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kai Jing, Yun Zhang, Xiang Rong Wang
Abstract:The natural color silk has been treated by sodium hydroxide and sodium carbonate,and the structure, crystallize and mechanical properties of...
760
Authors: Chao Wang, Mei Xu, Yu Peng Zhu, Yu Qiao, Lin Lin Cai
Abstract:In this paper, the effect of environment factors on KGM molecular dimension was discussed, such as ultrasonic, enzyme, concentration and...
1336
Authors: Fang Xie, Hao Liang
Biomaterials
Abstract:The thermal properties and rheological behavior of concentrated regenerated silk fibroin aqueous solution from 15% to 37% was investigated by...
1653
Authors: Xing Ke Ma, Zheng Wei Du, Min Zhu, Bo Jia Mu
Chapter 3: Electrochemistry
Abstract:At present, indirect effects of high-voltage electrostatic field on organisms and biological materials have been extensively studied....
372