Electroosmotic Pumps with Frits Synthesized from Potassium Silicate.
basic_science · Level V
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- Record sourced from PubMed, PMID 26629907.
- Also identified by DOI 10.1371/journal.pone.0144065 and PMC identifier PMC2756694.
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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.