By Topic

The Carbon Nanotube Based Micro Bubble Generator in Micro Channel with Dynamic Fluid

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)
Peng Xiao ; Center for Micro & Nano Syst., Chinese Univ. of Hong Kong, Shatin ; Wai Kit Chan ; Ho Shing Poon ; Yu Zhang
more authors

Based on the previous study of micro bubble generation using carbon nanotube heating elements with uW power input in static droplet of water, the dynamic characteristic of micro bubble generated by CNTs heater draw us much attention. In this summary, the micro bubble transportation, diameter control in micro channel and the departure of micro bubble from CNTs heater by pulse current stimulation in water tank will be presented. On the one hand, PDMS, after fabricating micro channel on it, will be bonded to the silicon substrate by oxygen plasma to form micro channel device. In our research, we could observe that the movement of vapor bubble along the micro channel by pulse flow or constant flow. The power consumption for bubble generation in micro channel is relative higher than that in static droplet of water, but it keeps staying around 275 uW. Furthermore we also use the injected cool water to control the diameter of the micro bubble. On the other hand, from micro bubble departure in water tank experiment, we observe that the micro bubble has shake response by pulse current input on the CNTs heater, which accelerate the departure of micro bubble. With low power consumption, dynamic transportation and controllable diameter, the micro bubble generated by CNTs heater in micro channel offers a promising future in lots of application, e.g., micro manipulation and micro transportation.

Published in:

2008 8th IEEE Conference on Nanotechnology

Date of Conference:

18-21 Aug. 2008