Inkjet printed silver electrodes on macroporous paper for a paper-based isoelectric focusing device

Cristina Henriques Gaspar, Tiina Sikanen, Sami Franssila, Ville Jokinen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
170 Downloads (Pure)

Abstract

We demonstrate a combined printing process utilizing inkjet printing of silver electrodes and solid-ink technology for printing hydrophobic wax barriers for fabricating paper microfluidic devices with integrated electrodes. Optimized printing parameters are given for achieving conducting silver lines on the top of macroporous chromatography paper down to 250μm-300μm resolution. Electrical characterization and wicking experiments demonstrate that the printed silver patterns are simultaneously conductive and porous enough to allow reliable capillary wicking across the electrodes. The combined wax and silver printing method is used for fabrication of paper microfluidic isoelectric focusing devices for separation and concentration of proteins.

Original languageEnglish
Article number064120
JournalBIOMICROFLUIDICS
Volume10
Issue number6
DOIs
Publication statusPublished - 1 Nov 2016
MoE publication typeA1 Journal article-refereed

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