掺银磷酸盐生物活性玻璃:热、结构和体外溶解性能

Q1 Materials Science

Biomedical Glasses Pub Date : 2016-01-28 DOI:10.1515/bglass-2016-0005

Ambuj Mishra, J. Rocherullé, J. Massera

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引用次数: 20

摘要

摘要采用传统的熔体淬火工艺，在Ag2O浓度为0 ~ 5 mol%的条件下制备了Ag掺杂生物活性磷酸盐玻璃。Ag掺杂导致磷酸盐网络的解聚，并伴随着玻璃化转变温度的降低。以∆T(∆T=Tx-Tg)表示的处理窗口在含有2-3 mol% Ag2O的玻璃中表现出最大值。Ag含量的增加导致玻璃溶解速率的增加。发现含银玻璃在较短的浸泡时间内，在玻璃颗粒表面析出Sr-CaP层。这些含银玻璃的均匀溶解和宽加工窗口可能对具有抗菌性能的玻璃粉烧结制造支架有很大的兴趣。

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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.

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来源期刊

Biomedical Glasses Materials Science-Surfaces, Coatings and Films

自引率

0.00%

发文量

审稿时长

17 weeks

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.