Analyte Separation for Microfluidic Applications by Surface Charge Modified Functional Pigment Coatings

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussavertaisarvioitu

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Printed, self-contained sensors based on capillary transport and microfluidic principles are part of rapidly emerging research in printed functionality. Previous work into such designs has mainly focused on cellulosic papers as base substrates. In this study, the authors continue to present findings on how the use of custom-designed functional pigment coatings as alternative substrates, combined with local functionalisation by inkjet printed polyelectrolytes, allows for tailoring of surface chemistries to concentrate or separate anionic or cationic molecules. Both anionised and cationised coatings are tested and found to transport similarly charged model colourants, while separating those of opposite charge, with the extent of separation depending on colourant concentration. Furthermore, local surface chemistry reversal by new cationic (polyethyleneimine) and anionic (carboxymethyl cellulose) polyelectrolyte inks is demonstrated as a complementary method for analyte separation or concentration.

Yksityiskohdat

AlkuperäiskieliEnglanti
OtsikkoAdvances in Printing and Media Technology
AlaotsikkoProceedings of the 44th International Research Conference of iarigai
ToimittajatPatrick Gane, Cathy Ridgway
TilaJulkaistu - 10 syyskuuta 2017
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaInternational Research Conference of Advances in Printing and Media Technology - Fribourg, Sveitsi
Kesto: 10 syyskuuta 201713 syyskuuta 2017
Konferenssinumero: 44
http://www.iarigai-fribourg.com/

Julkaisusarja

NimiAdvances in Printing and Media Technology
KustantajaIARIGAI
ISSN (painettu)2409-4021

Conference

ConferenceInternational Research Conference of Advances in Printing and Media Technology
LyhennettäIARIGAI
MaaSveitsi
KaupunkiFribourg
Ajanjakso10/09/201713/09/2017
www-osoite

ID: 15309499