TY - JOUR
T1 - Characterizing electroosmotic flow in microfluidic devices
AU - Gaudioso, J.
AU - Craighead, H. G.
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/9/20
Y1 - 2002/9/20
N2 - The current-monitoring method was used to measure the electroosmotic flow (EOF) in borosilicate glass capillaries and zeonor plastic microfluidic devices. The surface of the zeonor devices must be oxidized to support EOF and this treatment shows signs of aging within 6 days. Oxidized zeonor devices showed the same response to changes in applied field, pH, and ionic concentration as the capillaries. The effects of several common dynamic surfactant coatings on the walls were also studied (0.1%, v/v solutions of POP-6, POP-4, Pluronics L81, and NP-40). These generally significantly suppressed the EOF but required several days to stabilize.
AB - The current-monitoring method was used to measure the electroosmotic flow (EOF) in borosilicate glass capillaries and zeonor plastic microfluidic devices. The surface of the zeonor devices must be oxidized to support EOF and this treatment shows signs of aging within 6 days. Oxidized zeonor devices showed the same response to changes in applied field, pH, and ionic concentration as the capillaries. The effects of several common dynamic surfactant coatings on the walls were also studied (0.1%, v/v solutions of POP-6, POP-4, Pluronics L81, and NP-40). These generally significantly suppressed the EOF but required several days to stabilize.
KW - Electroosmotic flow
KW - Microfluidics
UR - http://www.scopus.com/inward/record.url?scp=0037144160&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037144160&partnerID=8YFLogxK
U2 - 10.1016/S0021-9673(02)00843-9
DO - 10.1016/S0021-9673(02)00843-9
M3 - Article
C2 - 12350121
AN - SCOPUS:0037144160
VL - 971
SP - 249
EP - 253
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
IS - 1-2
ER -