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Cellulose nanofibre textured SERS substrate
journal contribution
posted on 2015-03-05, 00:00 authored by L Zhang, X Li, L Ong, R F Tabor, B A Bowen, A I Fernando, Azadeh NilghazAzadeh Nilghaz, G Garnier, S L Gras, Xungai Wang, W ShenPoor reproducibility limits the wide uptake of low-cost surface enhanced Raman spectroscopy (SERS) substrates. This study reports a relatively low-cost and reproducible cellulose nanofibre (CNF) textured SERS substrate. Utilizing a layer of CNFs deposited onto glass slides, nanoscale roughness was achieved, which facilitated effective aggregation of gold nanoparticles (AuNPs) to form a novel CNF textured SERS substrate. This substrate meets the critical roughness requirements to control the distribution of AuNPs to provide 'hot spots' for SERS detection, offering significant signal enhancement. The reproducibility and accuracy of low-cost cellulosic SERS substrates were significantly improved on a model SERS molecule of 4-aminothiophenol.
History
Journal
Colloids and Surfaces A: Physicochemical and Engineering AspectsVolume
468Pagination
309 - 314Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0927-7757eISSN
1873-4359Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2015, ElsevierUsage metrics
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