scholarly journals Highly sensitive and reliable SERS probes based on nanogap control of a Au–Ag alloy on silica nanoparticles

RSC Advances ◽  
2017 ◽  
Vol 7 (12) ◽  
pp. 7015-7021 ◽  
Author(s):  
Xuan-Hung Pham ◽  
Minwoo Lee ◽  
Seongbo Shim ◽  
Sinyoung Jeong ◽  
Hyung-Mo Kim ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Silica Nanoparticles ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

We developed highly sensitive surface-enhanced Raman scattering (SERS) probes based on SiO2@Au@Ag nanoparticles (NPs) using the Ag growth onto Au NP seeds method.

scholarly journals Highly Reproducible Surface-Enhanced Raman Scattering Detection of Alternariol Using Silver-Embedded Silica Nanoparticles

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3523 ◽  
Author(s):  
Eunil Hahm ◽  
Yoon-Hee Kim ◽  
Xuan-Hung Pham ◽  
Bong-Hyun Jun
Keyword(s):  
Raman Scattering ◽  
Silica Nanoparticles ◽  
Ag Nanoparticles ◽  
Limit Of Detection ◽  
Surface Enhanced Raman Scattering ◽  
Sers Signal ◽  
Relative Standard ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Alternariol (AOH) is a mycotoxin from fungi that has been found in processed foods due to its high thermal stability. To address the complexity and costs of conventional AOH detection methods, we propose an alternative based on surface-enhanced Raman scattering (SERS) and specially designed nanoparticle substrate. Herein, silver-embedded silica (SiO2@Ag) nanoparticles with a highly reproducible SERS signal were successfully developed for detecting AOH. Silica nanoparticles (~145 nm) were used as a template to deposit silver nanoparticles (~17 nm), thereby generating SiO2@Ag. The SiO2@Ag nanoparticles showed a good linearity between SERS signal intensity and AOH concentrations from 16 to 1000 nM with a limit of detection of 4.83 nM. Additionally, the SERS signal of the SiO2@Ag nanoparticles was highly reproducible, with relative standard deviations of 2.33–5.95% in the AOH concentration range from 10 to 10,000 nM, demonstrating the reliability of the proposed SERS method.

Highly sensitive detection of paclitaxel by surface-enhanced Raman scattering

2015 ◽  
Vol 17 (11) ◽  
pp. 114019 ◽  
Author(s):  
Maximilien Cottat ◽  
Nathalie Lidgi-Guigui ◽  
Frédéric Hamouda ◽  
Bernard Bartenlian ◽  
Divya Venkataraman ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Highly Sensitive Detection
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