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首页> 外文期刊>Macromolecular bioscience >Layer-by-Layer Nano-Encapsulation of Microbes: Controlled Cell Surface Modification and Investigation of Substrate Uptake in Bacteria
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Layer-by-Layer Nano-Encapsulation of Microbes: Controlled Cell Surface Modification and Investigation of Substrate Uptake in Bacteria

机译:微生物的逐层纳米封装:受控的细胞表面修饰和细菌中基质吸收的研究

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摘要

LbL nano self-assembly coating of A. vinosum with different polyelectrolyte combinations is presented as an example to investigate substrate uptake in bacteria. The effects of surface charge and the formation of a physical barrier provides new insights in the contact mechanisms between the cell surface and insoluble elemental sulfur. Furthermore, uptake of sulfide by encapsulated cells was investigated. Growth experiments of coated cells showed that surface charge did neither affect sulfide uptake nor the contact formation between the cells and solid sulfur. However, increasing layers slowed or inhibited the uptake of sulfide and elemental sulfur. This work demonstrates how defining surface properties of bacteria has potential for microbiological and biotechnological applications.
机译:提出了以不同的聚电解质组合组成的葡萄球菌的LbL纳米自组装涂层作为研究细菌吸收底物的实例。表面电荷的影响和物理屏障的形成为细胞表面与不溶性元素硫之间的接触机理提供了新的见识。此外,研究了被包封的细胞对硫化物的吸收。被覆细胞的生长实验表明,表面电荷既不影响硫化物的吸收,也不影响细胞与固体硫之间的接触形成。但是,增加的层会减慢或抑制硫化物和元素硫的吸收。这项工作证明了定义细菌的表面特性如何在微生物和生物技术应用中具有潜力。

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