鳞片岩
矿化(土壤科学)
滴定法
矿化组织
铁质
化学
氢氧化物
碳酸盐
无机化学
化学工程
材料科学
针铁矿
有机化学
复合材料
吸附
工程类
氮气
牙本质
作者
Bernette M. Oosterlaken,Mark M. J. van Rijt,Heiner Friedrich,Gijsbertus de With
出处
期刊:CrystEngComm
[The Royal Society of Chemistry]
日期:2022-01-01
卷期号:24 (6): 1211-1217
被引量:2
摘要
The mineralization of collagen in vitro has been extensively investigated for hydroxyapatite, silica, calcium carbonate and lepidocrocite (γ-FeOOH). Henceforth, it is interesting to investigate whether collagen also could serve as a generic mineralization template for other minerals, like magnetite. To this end, and inspired by the partial oxidation approach, first a ferrous hydroxide (Fe(OH)2) intermediate is synthesized via the titration of base to a solution of Fe2+. Subsequently, the Fe(OH)2 is mixed with collagen fibrils and poly(aspartic acid) is added to promote the formation of intrafibrillar crystals. Platelet-shaped lepidocrocite crystals being present throughout the entire thickness of the collagen fibrils can be realized, as was confirmed with electron tomography. The formation of lepidocrocite, which is an Fe3+ compound, is hypothesized to be induced via oxidation of the Fe2+ species and, therefore, the oxygen concentration during titration, TEM sample preparation and drying of TEM samples are investigated. Although the reaction is sensitive to small changes in experimental conditions, highly mineralized collagen fibers can be realized.
科研通智能强力驱动
Strongly Powered by AbleSci AI