{"title":"掺银磷酸盐生物活性玻璃:热、结构和体外溶解性能","authors":"Ambuj Mishra, J. Rocherullé, J. Massera","doi":"10.1515/bglass-2016-0005","DOIUrl":null,"url":null,"abstract":"Abstract Ag doped-bioactive phosphate glasses were processed by traditional melt quenching technique with the concentration of Ag2O ranging from 0 to 5 mol%. The Ag doping led to the depolymerization of the phosphate networkwhich is accompanied by a decrease in the glass transition temperature. The processing window represented by ∆T (∆T=Tx-Tg) exhibited a maximum for glasses containing 2-3 mol% of Ag2O. An increase in Ag content induced an increase in the glass dissolution rate. The precipitation of a Sr-CaP layer at the surface of the glass particulates was found to occur at shorter immersion time for the Ag containing glasses. The congruent dissolution and wide processing window of these Ag containing glasses may be of great interest for scaffold manufacturing from sintering of glass powders with antimicrobial properties.","PeriodicalId":37354,"journal":{"name":"Biomedical Glasses","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/bglass-2016-0005","citationCount":"20","resultStr":"{\"title\":\"Ag-doped phosphate bioactive glasses: thermal, structural and in-vitro dissolution properties\",\"authors\":\"Ambuj Mishra, J. Rocherullé, J. Massera\",\"doi\":\"10.1515/bglass-2016-0005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Ag doped-bioactive phosphate glasses were processed by traditional melt quenching technique with the concentration of Ag2O ranging from 0 to 5 mol%. The Ag doping led to the depolymerization of the phosphate networkwhich is accompanied by a decrease in the glass transition temperature. The processing window represented by ∆T (∆T=Tx-Tg) exhibited a maximum for glasses containing 2-3 mol% of Ag2O. An increase in Ag content induced an increase in the glass dissolution rate. The precipitation of a Sr-CaP layer at the surface of the glass particulates was found to occur at shorter immersion time for the Ag containing glasses. The congruent dissolution and wide processing window of these Ag containing glasses may be of great interest for scaffold manufacturing from sintering of glass powders with antimicrobial properties.\",\"PeriodicalId\":37354,\"journal\":{\"name\":\"Biomedical Glasses\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-01-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1515/bglass-2016-0005\",\"citationCount\":\"20\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biomedical Glasses\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/bglass-2016-0005\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"Materials Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomedical Glasses","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/bglass-2016-0005","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Materials Science","Score":null,"Total":0}
Ag-doped phosphate bioactive glasses: thermal, structural and in-vitro dissolution properties
Abstract Ag doped-bioactive phosphate glasses were processed by traditional melt quenching technique with the concentration of Ag2O ranging from 0 to 5 mol%. The Ag doping led to the depolymerization of the phosphate networkwhich is accompanied by a decrease in the glass transition temperature. The processing window represented by ∆T (∆T=Tx-Tg) exhibited a maximum for glasses containing 2-3 mol% of Ag2O. An increase in Ag content induced an increase in the glass dissolution rate. The precipitation of a Sr-CaP layer at the surface of the glass particulates was found to occur at shorter immersion time for the Ag containing glasses. The congruent dissolution and wide processing window of these Ag containing glasses may be of great interest for scaffold manufacturing from sintering of glass powders with antimicrobial properties.
期刊介绍:
Biomedical Glasses is an international Open Access-only journal covering the field of glasses for biomedical applications. The scope of the journal covers the science and technology of glasses and glass-based materials intended for applications in medicine and dentistry. It includes: Chemistry, physics, structure, design and characterization of biomedical glasses Surface science and interactions of biomedical glasses with aqueous and biological media Modeling structure and reactivity of biomedical glasses and their interfaces Biocompatibility of biomedical glasses Processing of biomedical glasses to achieve specific forms and functionality Biomedical glass coatings and composites In vitro and in vivo evaluation of biomedical glasses Glasses and glass-ceramics in engineered regeneration of tissues and organs Glass-based devices for medical and dental applications Application of glasses and glass-ceramics in healthcare.