Fractal design of electrokinetic network

Xin Hu, Shengnian Wang, Yi Je Juang, Ly James Lee

Research output: Contribution to conferencePaper

Abstract

Three widely used flow patterns, i.e. extensional, mixed-shear and rotational flows are generated by electrokinetic forces in a single fractal design of microfluidic network without surface charge patterning on the channel walls. Unlike other microfluidic devices, the flow patterns in this five-cross design are largely independent of the charge density and polarity of analytes in the fluid. The flow types can be quickly switched by changing the voltage inputs. This microfluidic network can be expanded outwards in the manner of the fractal. The observed flow patterns of buffer solutions containing charged polystyrene (PS) microspheres and lambda-DNA molecules agree very well with simulation results. Also the Brownian dynamics simulation on the conformation change of a single DNA molecule fits quantitatively with the experimental results.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 2005 Oct 302005 Nov 4

Other

Other05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
CountryUnited States
CityCincinnati, OH
Period05-10-3005-11-04

Fingerprint

Microfluidics
Fractals
Flow patterns
DNA
Rotational flow
Molecules
Shear flow
Surface charge
Charge density
Microspheres
Conformations
Polystyrenes
Fluids
Computer simulation
Electric potential

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Hu, X., Wang, S., Juang, Y. J., & Lee, L. J. (2005). Fractal design of electrokinetic network. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.
Hu, Xin ; Wang, Shengnian ; Juang, Yi Je ; Lee, Ly James. / Fractal design of electrokinetic network. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.1 p.
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Hu, X, Wang, S, Juang, YJ & Lee, LJ 2005, 'Fractal design of electrokinetic network', Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States, 05-10-30 - 05-11-04.

Fractal design of electrokinetic network. / Hu, Xin; Wang, Shengnian; Juang, Yi Je; Lee, Ly James.

2005. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.

Research output: Contribution to conferencePaper

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Hu X, Wang S, Juang YJ, Lee LJ. Fractal design of electrokinetic network. 2005. Paper presented at 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase, Cincinnati, OH, United States.