Roll-to-roll manufacturing of disposable surface-enhanced Raman scattering (SERS) sensors on paper based substrates

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Jarkko J. Saarinen, Dimitar Valtakari, Simon Sandén, Janne Haapanen, Turkka Salminen, Jyrki M. Mäkelä, Jun Uozumi
Publisher: Mid Sweden University
Place: Sundsvall
Publication year: 2017
Journal: Nordic Pulp and Paper Research Journal
Journal acronym: Nord. Pulp Pap. Res. J.
Volume number: 32
Issue number: 2
Start page: 222
End page: 228
eISSN: 2000-0669


Abstract

We present two cost-effective routes for roll-to-roll (R2R) manufacturing of silver nanoparticle based surface-enhanced Raman scattering (SERS) active substrates on paper utilizing either inkjet printing or liquid flame spray (LFS) nanoparticle deposition. Paper is cost-effective, renewable, recyclable, and biodegradable that can easily be disposed after the SERS analysis. Paper based substrates can have a strong luminescence that can overshadow the rather weak SERS signal. Two solutions are presented here that solve the luminescence issue of the base paper substrate. A full silver coverage by inkjet printing or alternatively a simple flexography carbon coating can suppress the background luminescence allowing a reliable SERS characterization. The detection limit of the sample analyte crystal violet was 100 nM corresponding to 100 fmol in a 1 µl sample volume. These approaches can provide a cost-effective route towards disposable, point-of-care SERS active substrates.


Keywords

flexography, ink-jet printing, Liquid Flame Spray (LFS), Silver nanoparticles, Surface-enhanced Raman scattering (SERS)

Last updated on 2019-16-07 at 02:41