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

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:455

Article

Cakes, A. J.¹  Vaz, R. P.²  Fantini, C.¹  Ladeira, L. O.¹ 

[1] Univ Fed Minas Gerais, Dept Phys, Nanomat Lab, BR-31270901 Belo Horizonte, MG, Brazil

[2] Univ Fed Minas Gerais, Inst Biol Sci, Dept Microbiol, BR-31270901 Belo Horizonte, MG, Brazil

关键词: Gold nanorods;    Carbon Nanotubes;    Hybrids;    Nanocomposite;    Photochemical;    SERS;    Coffee ring;   

DOI  :  10.1016/j.jcis.2015.04.071

来源: Elsevier

【 摘 要 】

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. (C) 2015 Elsevier Inc. All rights reserved.

【 授权许可】

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