论文标题
细菌运动增强对油滴的粘附
Bacterial Motility Enhances Adhesion to Oil Droplets
论文作者
论文摘要
细菌对液体液体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处理工程中发挥作用。虽然对粘附粘附的基础的热力学因素进行了充分的研究，但细菌活性在粘附方面的作用较少。与非运动型钛科相比，与二辛基硫酸钠降糖酸盐（DOSS）稳定的六烷基液滴相比，在二辛基二辛基磺胺核酸钠（DOSS）稳定的六烷基液滴钛科与非运动型钛科相比，其鞭毛的运动量更高，其鞭毛运动被添加通过添加了一个Pro-ton Unclopler。由于界面张力的降低，增加了DOSS的浓度可降低机动和非运动细菌的表面密度。
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 pro-ton uncoupler. Increasing the concentration of DOSS reduced the surface density of both motile and nonmotile bacteria as a result of the reduced interfacial tension.
