Sammanfattning
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.
Originalspråk | Odefinierat/okänt |
---|---|
Sidor (från-till) | 222–228 |
Tidskrift | Nordic Pulp and Paper Research Journal |
Volym | 32 |
Nummer | 2 |
DOI | |
Status | Publicerad - 2017 |
MoE-publikationstyp | A1 Tidskriftsartikel-refererad |
Nyckelord
- ink-jet printing
- flexography
- Silver nanoparticles
- Surface-enhanced Raman scattering (SERS)
- Liquid Flame Spray (LFS)