Inorganic Porous Bulk Discs as a Matrix for Thin-Layer Chromatography and Translucent Hard Composite Materials 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
ACS applied materials & interfaces
年/卷/期
2020 / 12 / 3
页码
3727-3735
ISSN号
1944-8244
作者单位
Univ Konstanz, Dept Chem, Phys Chem, Univ Str 10, D-78457 Constance, Germany;Univ Konstanz, Dept Chem, Phys Chem, Univ Str 10, D-78457 Constance, Germany;Uppsala Univ, Dept Engn Sci, Appl Mat Sci, Lagerhyddsvagen 1, S-75237 Uppsala, Sweden;Univ Konstanz, Dept Chem, Phys Chem, Univ Str 10, D-78457 Constance, Germany;Univ Konstanz, Dept Chem, Phys Chem, Univ Str 10, D-78457 Constance, Germany;Univ Konstanz, Dept Chem, Phys Chem, Univ Str 10, D-78457 Constance, Germany;
作者
Chen, Song;Knaus, Jennifer;Luo, Jun;Spinnrock, Andreas;Sturm, Elena V.;Coelfen, Helmut;
摘要
Magnesium-stabilized amorphous calcium carbonate (Mg-ACC), amorphous magnesium calcium silicate hydrate (MCSH), and hydroxyapatite (HAp) are prepared by a precipitation method. By cold-pressing these particles, it is possible to produce porous bulk discs with a narrow pore size distribution. These porous inorganic discs (Mg-ACC, MCSH, and HAp) are investigated as stationary phases to study the chromatographic behavior and adsorption ability of rhodamine B, methylene blue, and ribonuclease. The adsorption affinities of different biomolecules can be easily observed and evaluated through this method. Furthermore, by infiltrating fabricated opaque porous discs with benzyl ether, which has a similar refractive index as the used inorganic particles (Mg-ACC, MCSH, and HAp), their optical properties significantly change and the discs become translucent. Moreover, by infiltrating the MCSH discs with a light-curing polymer, translucent composites with good surface hardness are fabricated. By doping particles with ions such as Ni2+, Co2+ , Fe3+, and Eu3+, the color and UV-visible spectrum of the bulk discs can be adjusted. Typically, by using iron-doped MCSH particles as the inorganic matrix, nanocomposites, which show a steep UV-absorption edge at 400 nm, are fabricated. Our work provides a simple and economical method to evaluate the affinity of biomolecules to inorganic materials and a novel way to fabricate translucent hard composite materials. The fabricated nanocomposite discs show a great UV shielding effect and superior surface hardness compared to polymethyl methacrylate and commercial sunglasses, suggesting their potential as new sunglass materials.
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关键词/主题词
composite materials;porous matrix;thin-layer chromatography;translucent materials;sunglass;
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