Chen Hongbing, Mao Huiling, Wu Liping, Zhang Jun, Dong Yaming, Wu Zhihua, Hu Jun
State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China.
Biofouling. 2009;25(4):353-7. doi: 10.1080/08927010902807645.
The present work demonstrates that nanobubbles can be used as cleaning agents on stainless steel (SS) surfaces. Cleaning efficiency has been quantified. Using an Atomic Force Microscope (AFM), it was demonstrated that nanobubbles can be produced by electrochemical treatment on a SS surface either with or without adsorbed bovine serum albumin (BSA). After allowing adsorption on SS overnight, radio-labeled BSA was removed by electrochemically generated nanobubbles, and then the remaining BSA on the surface was quantified by radioactivity measurement. The results indicate that nanobubbles can remove >10% of the protein in each 3-min electrochemical treatment while in a control group, washing with water and electrolyte resulted in no more than 3% of the protein being removed each time. Cleaning of conducting surfaces by nanobubbles is promising in any system where fouling occurs in biomedia.
目前的研究表明，纳米气泡可作为不锈钢（SS）表面的清洁剂。已对清洁效率进行了量化。使用原子力显微镜（AFM）表明，在有或没有吸附牛血清白蛋白（BSA）的SS表面上，均可通过电化学处理产生纳米气泡。在SS上吸附过夜后，通过电化学产生的纳米气泡去除放射性标记的BSA，然后通过放射性测量对表面上剩余的BSA进行定量。结果表明，在每次3分钟的电化学处理中，纳米气泡可去除>10%的蛋白质，而在对照组中，用水和电解质洗涤每次去除的蛋白质不超过3%。在生物介质中发生污染的任何系统中，利用纳米气泡清洁导电表面都很有前景。
