在3D打印表面上性土金属碳酸盐的微生物生物矿化
Filipe Natalio1, Raquel Maria2
1Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
ACS applied materials & interfaces
|January 11, 2024
概括
细菌Sporosarcina pasteurii可以在3D打印的表面上创建矿物涂层. 这些生物诱导涂料具有独特的热性能,并有可能用于航空航天应用.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 地质技术工程 地质技术工程
背景情况:
- 菌是一种生物矿物化的细菌,以诱导细胞外矿化而闻名.
- 生物矿物化为材料制造和表面修饰提供了一种可持续的方法.
- 传统的应用是地质工程,但潜力延伸到先进的材料.
研究的目的:
- 研究Sporosarcina pasteurii在3D打印聚合物上诱导土金属碳酸盐涂层的能力.
- 在各种增材制造的表面上探索不同矿物相 (CaCO3,BaCO3,SrCO3,MgCO3·3H2O) 的形成.
- 描述这些生物诱导矿物涂料的特性.
主要方法:
- 使用Sporosarcina pasteurii在3D打印的聚合物基板上进行生物矿物化.
- 使用不同的土金属离子 (Ca,Ba,Sr,Mg) 作为矿物来源.
- 使用评估形态,组成和热性质的技术来表征产生的矿物涂层.
主要成果:
- 在3D打印表面上成功地形成了瓦特里特,瓦特里特,斯特隆提亚尼特和内斯奎霍尼特涂层.
- 矿物涂层呈现出紧的,厚度可变的聚合微粒.
- 与无机对应物相比,生物诱导涂料表现出明显的热性能.
- 在生物矿物化过程中微粒子聚类的机制需要进一步研究.
结论:
- 在3D打印的聚合物上,Sporosarcina pasteurii有效地诱导了各种土金属碳酸盐涂层.
- 这些生物矿物化涂层具有独特的热特性.
- 这些发现支持在传统地质工程之外的航空航天工程等领域的新应用.
- 这项研究为多功能,生物一体化涂料开辟了道路.
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