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Electroosmotic Pumps with Frits Synthesized from Potassium Silicate

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...

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Detalles Bibliográficos
Autores principales: Nilsson, Sara, Erlandsson, Per G., Robinson, Nathaniel D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4668094/
https://www.ncbi.nlm.nih.gov/pubmed/26629907
http://dx.doi.org/10.1371/journal.pone.0144065
Descripción
Sumario: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.