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Nanomaterials 2018, 8(6), 376; https://doi.org/10.3390/nano8060376

One-Step Synthesis of Au-Ag Nanowires through Microorganism-Mediated, CTAB-Directed Approach

1
Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China
2
Department of Chemistry, College of Chemistry and Chemical Engineering, and National Laboratory for Green Chemical Productions of Alcohols, Ethers and Esters, Xiamen University, Xiamen 361005, China
3
College of Chemical Engineering and Material Science, Quanzhou Normal University, Quanzhou 362002, China
*
Authors to whom correspondence should be addressed.
Received: 27 April 2018 / Revised: 15 May 2018 / Accepted: 26 May 2018 / Published: 28 May 2018
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Abstract

Synthesis and applications of one dimensional (1D) metal nanostructures have attracted much attention. However, one-step synthesis of bimetallic nanowires (NWs) has remained challenging. In this work, we developed a microorganism-mediated, hexadecyltrimethylammonium bromide (CTAB)-directed (MCD) approach to synthesize closely packed and long Au-Ag NWs with the assistance of a continuous injection pump. Characterization results confirmed that the branched Au-Ag alloy NWs was polycrystalline. And the Au-Ag NWs exhibited a strong absorbance at around 1950 nm in the near-infrared (NIR) region, which can find potential application in NIR absorption. In addition, the Au-Ag NWs showed excellent surface-enhanced Raman scattering (SERS) enhancement when 4-mercaptobenzoic acid (MBA) and rhodamine 6G (R6G) were used as probe molecules. View Full-Text
Keywords: microorganism-mediated; Au-Ag NWs; SERS enhancement; Pichia pastoris cells; CTAB microorganism-mediated; Au-Ag NWs; SERS enhancement; Pichia pastoris cells; CTAB
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Xu, L.; Huang, D.; Chen, H.; Jing, X.; Huang, J.; Odoom-Wubah, T.; Li, Q. One-Step Synthesis of Au-Ag Nanowires through Microorganism-Mediated, CTAB-Directed Approach. Nanomaterials 2018, 8, 376.

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