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Synthesis of Gold Nanoshuttles as Efficient Surface-Enhanced Raman Scattering Substrate for Malachite Green Detection

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In this paper, we report the synthesis and surface-enhanced Raman scattering (SERS) applications of gold nanoshuttles (GNSs). We used the conventional cylindrical gold nanorods (GNRs) with rounded ends as the starting materials, which evolved into the overgrowth, fabricating the GNSs with sharp ends. Compared with the GNRs, the GNSs have much stronger extinction intensity at the longitudinal surface plasmon resonance peak, and exhibit much higher SERS activity. By fabricating a paper-based SERS substrate by immobilizing the GNSs into a filter paper, the obtained GNSspaper substrate demonstrates high SERS sensitivity in the detection of malachite green. All these results demonstrate the GNSs a really excellent choice for a variety of SERS-based applications such as food safety, environmental monitoring, and homeland security.
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Keywords: FILTER PAPER; GOLD NANOPARTICLES; GOLD NANORODS; PLASMONICS; SURFACE ENHANCED RAMAN SPECTROSCOPY

Document Type: Short Communication

Publication date: February 1, 2016

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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