Bacterial motility enhances adhesion to oil droplets.,Soft Matter

当前位置： X-MOL 学术 › Soft Matter › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Bacterial motility enhances adhesion to oil droplets.
Soft Matter ( IF 2.9 ) Pub Date : 2020-08-07 , DOI: 10.1039/d0sm00944j
Narendra K Dewangan ₁ , Jacinta C Conrad ₁

Affiliation

Adhesion of bacteria to liquid–liquid interfaces can play a role in the biodegradation of dispersed hydrocarbons and in biochemical and bioprocess engineering. Whereas thermodynamic factors underpinning adhesion are well studied, the role of bacterial activity on adhesion is less explored. Here, we show that bacterial motility enhances adhesion to surfactant-decorated oil droplets dispersed in artificial sea water. Motile Halomonas titanicae adhered to hexadecane droplets stabilized with dioctyl sodium sulfosuccinate (DOSS) more rapidly and at greater surface densities compared to nonmotile H. titanicae, whose flagellar motion was arrested through addition of a proton uncoupler. Increasing the concentration of DOSS reduced the surface density of both motile and nonmotile bacteria as a result of the reduced interfacial tension.

中文翻译：

细菌运动性增强了对油滴的附着力。

细菌对液-液界面的粘附可以在分散的碳氢化合物的生物降解以及生化和生物过程工程中发挥作用。尽管对粘附的热力学因素进行了深入研究，但细菌活性对粘附的作用却很少被研究。在这里，我们表明细菌的运动性增强了对分散在人造海水中的表面活性剂装饰的油滴的附着力。相较于非能动的H. titanicae，能动的Haloomonas titanicae粘附于用磺基琥珀酸二辛酯（DOSS）稳定的十六烷液滴上，且速度更快，表面密度更高。，其鞭毛运动通过添加一个质子解偶联剂而被阻止。由于减小的界面张力，DOSS浓度的增加会降低运动菌和非运动菌的表面密度。

更新日期：2020-09-16

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11