Title :
Micromachined electrical field-flow fractionation (μ-EFFF) system
Author :
Gale, Bruce K. ; Frazier, A. Bruno ; Caldwell, Karin D.
Author_Institution :
Dept. of Bioeng., Utah Univ., Salt Lake City, UT, USA
Abstract :
In this work, micromachining technologies are used in the development of the next generation of precision μ-EFFF separation systems. Current macromachining techniques are the limiting factor in the development of more effective Electrical Field-Flow Fractionation (EFFF) separation systems. EFFF systems are used to separate particles in colloids such as cells or proteins. In this paper, EFFF systems are compared to other separation systems and a review of past micromachining efforts in the area of separation systems is made. The theory behind the operation and resolution of an EFFF system is surveyed and the advantages to be gained from application of micromachining technologies are discussed. A method of fabrication that relies on micromachining technologies for μ-EFFF system construction is described. The μ-EFFF system setup is described, devices are tested, compared to the current macro EFFF systems, and the results reported
Keywords :
biological techniques; cellular biophysics; electric fields; micromachining; micromechanical devices; proteins; separation; Si; Si substrate; cells; colloids; electrical field-flow fractionation; glass substrate; micromachining technologies; proteins; separation systems; Biomedical engineering; Cells (biology); Chemicals; Chemistry; Cities and towns; Electrodes; Electrokinetics; Field-flow fractionation; Micromachining; Proteins;
Conference_Titel :
Micro Electro Mechanical Systems, 1997. MEMS '97, Proceedings, IEEE., Tenth Annual International Workshop on
Conference_Location :
Nagoya
Print_ISBN :
0-7803-3744-1
DOI :
10.1109/MEMSYS.1997.581783
