{"title":"Water induced bioelectret state in lysozyme","authors":"M. G. Bridelli, R. Capelletti, G. Ruani, A. Vecli","doi":"10.1109/ISE.1985.7341581","DOIUrl":null,"url":null,"abstract":"The role of water in a bioelectret such as lysozyme at different hydration levels is studied by coupling TSDC and i.r. absorption measurements. In addition to the 312 K-band reported by Mascarenhas, our TSDC spectra exhibit new, weaker but anyway relevant bands related to water in different coordinations. At fixed starting hydration levels, the time evolution of water contents was studied by isothermal sample aging in dynamic vacuum: 1) the whole TSDC spectrum was reduced, the decrease being more relevant on the high temperature side and 2) the water related i.r. bands decreased as well.","PeriodicalId":6451,"journal":{"name":"1985 5th International Symposium on Electrets (ISE 5)","volume":"8 1","pages":"831-835"},"PeriodicalIF":0.0000,"publicationDate":"1985-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1985 5th International Symposium on Electrets (ISE 5)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISE.1985.7341581","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
The role of water in a bioelectret such as lysozyme at different hydration levels is studied by coupling TSDC and i.r. absorption measurements. In addition to the 312 K-band reported by Mascarenhas, our TSDC spectra exhibit new, weaker but anyway relevant bands related to water in different coordinations. At fixed starting hydration levels, the time evolution of water contents was studied by isothermal sample aging in dynamic vacuum: 1) the whole TSDC spectrum was reduced, the decrease being more relevant on the high temperature side and 2) the water related i.r. bands decreased as well.
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