Highly sensitive and simple SERS substrate based on photochemically generated carbon nanotubes-gold nanorods hybrids.

Authors :: Caires AJ
Vaz RP
Fantini C
Ladeira LO
Source :: Journal of colloid and interface science [J Colloid Interface Sci] 2015 Oct 01; Vol. 455, pp. 78-82. Date of Electronic Publication: 2015 May 27.
Publication Year :: 2015
Abstract: We report a simple and easy formation of hybrids between multi-wall carbon nanotubes and gold nanorods by one-pot in situ photochemical synthesis. Measurements of surface-enhanced Raman scattering (SERS) through the effect "coffee ring" in visible and near infrared (NIR) show high sensitivity with detection of nanomolar concentrations of aromatic dyes. The formation of nanocomposites between carbon nanotubes and gold nanorods without chemical binders simplifies the preparation. Photochemical synthesis is an advance over the techniques previously published.<br /> (Copyright © 2015 Elsevier Inc. All rights reserved.)

Subjects :: Benzoxazines analysis
Methylene Blue analysis
Nanocomposites ultrastructure
Nanotubes ultrastructure
Nanotubes, Carbon ultrastructure
Photochemical Processes
Spectrum Analysis, Raman methods
Ultraviolet Rays
Coloring Agents analysis
Gold chemistry
Nanocomposites chemistry
Nanotubes chemistry
Nanotubes, Carbon chemistry

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