title: Electroosmotic Pumps with Frits Synthesized from Potassium Silicate.
abstract: Electroosmotic pumps employing silica frits synthesized from potassium silicate as a stationary phase show strong electroosmotic flow velocity and resistance to pressure-driven flow. We characterize these pumps and measure an electroosmotic mobility of 2.5 × 10(-8) m(2)/V s and hydrodynamic resistance per unit length of 70 × 10(17) Pa s/m(4) with a standard deviation of less than 2% even when varying the amount of water used in the potassium silicate mixture. Furthermore, we demonstrate the simple integration of these pumps into a proof-of-concept PDMS lab-on-a-chip device fabricated from a 3D-printed template.
authors.affiliation: Transport and Separations Group, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.
authors.forename: Sara
authors.initials: S
authors.lastname: Nilsson
authors.affiliation: Transport and Separations Group, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.
authors.forename: Per G
authors.initials: PG
authors.lastname: Erlandsson
authors.affiliation: Transport and Separations Group, Department of Physics, Chemistry and Biology, Linköping University, Linköping, Sweden.
authors.forename: Nathaniel D
authors.initials: ND
authors.lastname: Robinson
mesh_terms: D053841:Electroosmosis / Q000295:instrumentation*; D056656:Lab-On-A-Chip Devices; D044085:Microfluidics / Q000295:instrumentation*; D011188:Potassium / Q000737:chemistry*; D011312:Pressure; D017640:Silicates / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry
chemical_list: D017640:Silicates; D012822:Silicon Dioxide; D011188:Potassium