کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
738515 | 894012 | 2009 | 9 صفحه PDF | دانلود رایگان |
We report on a transport system for nanobeads that exploits Brownian motion as the main actuation source, saving energy compared to a purely electrostatic transport system of the same geometry. The transport system employs a microfluidic channel to restrict Brownian motion of the nanobeads to only one dimension and a 3-phase dielectrophoretic flashing ratchet to bias the spatial probability distribution into the rectification direction for one-dimensional transport. A numerical model of the system is developed and applied to investigate its performance. A micromachined transport system is fabricated and employed to experimentally validate the model with the confirmation of the optimal operation point. Numerical model and experiments have shown good agreement.
Journal: Sensors and Actuators A: Physical - Volume 154, Issue 1, 31 August 2009, Pages 123–131