Synthesis of Spiked Plasmonic Nanorods with an Interior Nanogap for Quantitative Surface-Enhanced Raman Scattering Analysis

Yang Zhang, Chen Li, Zahra Fakhraai, Basem Moosa, Peng Yang, Niveen M. Khashab

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Realizing quantitative surface-enhanced Raman scattering (SERS) analysis is extremely helpful and challenging. Here, we utilize a facile method to synthesize spiked plasmonic nanorods with an interior gap. The Raman signal from the molecules embedded in the gap can be dramatically enhanced, leading to strong, stable, and reproducible SERS signals that can be used as an internal reference for quantitative SERS analysis. We demonstrate that the rough exterior surface has a good performance in enhancing the Raman signal of polycyclic aromatic hydrocarbon molecules adsorbed on the surface. The result shows that this method is applicable for a large range of analyte concentrations and there is an excellent linear relationship between the SERS intensity ratio and the analyte concentration (0.5–100 μM).
Original languageEnglish (US)
Pages (from-to)14399-14405
Number of pages7
JournalACS Omega
Volume3
Issue number10
DOIs
StatePublished - Oct 30 2018

Fingerprint Dive into the research topics of 'Synthesis of Spiked Plasmonic Nanorods with an Interior Nanogap for Quantitative Surface-Enhanced Raman Scattering Analysis'. Together they form a unique fingerprint.

Cite this