Controlling the Rotational Behavior of Bacterial Flageller Motors
Mutant strains of bacterial flagellar motors can be tethered to the sidewalls of microfluidic channels to perform mechanical functions.In most cases,the rotational behavior of the tethered motors must be properly controlled in order to achieve optimized performance.There are several approaches for carrying out this task but most of them involve techniques that affect the viability of the motors.The present paper describes the application of hydrodynamic loading to achieve cell rotation synchronization.This is a non-contact method that uses viscous drag force induced by a small fluid flow to either slow down or stop the motor rotation completely if necessary.No negative effect on the motors is observed when the loading time is kept short.By applying this method to a group of tethered motors,it is possible to stop and restart their rotation for the purpose of synchronization.
Steve Tung Ryan Pooran Jin-Woo Kim
Department of Mechanical Engineering Microelectronics-Photonics Program Department of Biological and Agricultural Engineering University of Arkansas Fayetteville,AR 72701,U
国际会议
2008 IEEE International Conference on Onformation and Automation(IEEE 信息与自动化国际会议)
张家界
英文
1637-1640
2008-06-20（万方平台首次上网日期，不代表论文的发表时间）