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Triple Raman Label‐Encoded Gold Nanoparticle Trimers for Simultaneous Heavy Metal Ion Detection

2015; Wiley; Volume: 11; Issue: 28 Linguagem: Inglês

10.1002/smll.201403356

1613-6829

Si Li, Liguang Xu, Wei Ma, Hua Kuang, Libing Wang, Chuanlai Xu,

Nanocluster Synthesis and Applications

Here, a triple Raman label-encoded gold nanoparticle (AuNP) trimer is fabricated for heavy metal ion detection. In the presence of target ions, the gold nanoparticles modified with different Raman labels are assembled into trimers and produce different enhancements of Raman reporters, which are functionalized as Raman probes for simultaneous silver and mercury ion detection. Under optimized conditions, the limits of detection of Ag+ and Hg2+ reach 8.42 × 10–12 and 16.78 × 10–12m, respectively. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.