Document Type

Article

Publication Date

2021

Publication Title

Spectroscopy

Volume

36

Issue

Supplement 6

Pages

24-37

Abstract

Surface enhanced Raman spectroscopy (SERS), although popular in research, has not yet been adopted in industrial applications. This is largely due to the challenge of manufacturing cost-effective, reproducible SERS substrates in volume that can be read by a compact reader for practical deployment in the field. Here we demonstrate and characterize a new dual-nanostructured SERS substrate approach that could be amenable to large-scale production. This dual-nanostructured surface combines long-range ordering of silver nanowires (AgNWs) with dense non-ordered decoration via silver nanoparticles (AgNPs) to improve on the SERS response characteristics of the individual structures, using fabrication methods that could be scaled for deposition via roll-to-roll Mayer rod coating. Characterization of the substrates' SERS response using 638 nm Raman spectroscopy and ATP as the reporter molecule found the dual-nanostructured SERS substrate to offer both greater spatial uniformity and a consistently higher SERS enhancement factor (EF) than the nanowires alone.

Comments

© 2021 MJH Life Sciences.

Included with the kind written permission of the copyright holder.

Original Publication Citation

Castro, K. B., Rathmell, C., & Cooper, J. (2021). A dual nanostructured approach to SERS substrates amenable to large-scale production. Spectroscopy, 36 (Suppl. 6) 24-37.

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