{"title":"透明质酸及其盐类的介电光谱","authors":"S. El-Fakhri, V. Holcman, K. Liedermann","doi":"10.1109/ISEIM.2008.4664539","DOIUrl":null,"url":null,"abstract":"Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being sigma ~ omega1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol.","PeriodicalId":158811,"journal":{"name":"2008 International Symposium on Electrical Insulating Materials (ISEIM 2008)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dielectric spectroscopy of hyaluronic acid and its salts\",\"authors\":\"S. El-Fakhri, V. Holcman, K. Liedermann\",\"doi\":\"10.1109/ISEIM.2008.4664539\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being sigma ~ omega1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol.\",\"PeriodicalId\":158811,\"journal\":{\"name\":\"2008 International Symposium on Electrical Insulating Materials (ISEIM 2008)\",\"volume\":\"26 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-10-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 International Symposium on Electrical Insulating Materials (ISEIM 2008)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISEIM.2008.4664539\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 International Symposium on Electrical Insulating Materials (ISEIM 2008)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISEIM.2008.4664539","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dielectric spectroscopy of hyaluronic acid and its salts
Hyaluronic acid is a high-molecular-weight polysaccharide found mostly in a human body and widely used in biomedical applications. Our study was focused on its electrical properties in the temperature range 25 K - 325 K and in the frequency range 100 Hz - 1 MHz. Three conductivity regions were found: DC conductivity, universal dielectric response and the super linear power law with the observed frequency dependence of conductivity being sigma ~ omega1.06. Activation energy of the DC conductivity process was established to be 5.4 MJ/kmol.
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