Piecewise uniform conduction-like flow channels and method therefor
- Livermore, CA
A low-dispersion methodology for designing microfabricated conduction channels for on-chip electrokinetic-based systems is presented. The technique relies on trigonometric relations that apply for ideal electrokinetic flows, allowing faceted channels to be designed on chips using common drafting software and a hand calculator. Flows are rotated and stretched along the abrupt interface between adjacent regions with differing permeability. Regions bounded by interfaces form flow "prisms" that can be combined with other designed prisms to obtain a wide range of turning angles and expansion ratios while minimizing dispersion. Designs are demonstrated using two-dimensional numerical solutions of the Laplace equation.
- Research Organization:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia National Laboratories (Livermore, CA)
- Patent Number(s):
- 7,005,301
- Application Number:
- 10/456,772
- OSTI ID:
- 908590
- Country of Publication:
- United States
- Language:
- English
Similar Records
Integrated separation and optical detection for novel on-chip chemical analysis
System for concentrating and analyzing particles suspended in a fluid