Qualitative analysis of some alkanethiols on Au nanoparticles during SERS

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12131-12142 ◽  
Author(s):  
R. A. Harris ◽  
M. Mlambo ◽  
P. S. Mdluli
Keyword(s):  
Raman Spectroscopy ◽  
Qualitative Analysis ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman ◽  
Surfactant Systems

The surface enhanced Raman spectroscopy enhancement factors (SERS EFs) for different AuNP–surfactant systems are measured and the observed trend is theoretically and qualitatively investigated.

Morphological evolution of gold nanoparticles on silicon nanowires and their plasmonics

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49708-49718 ◽  
Author(s):  
Yuan Li ◽  
Wenwu Shi ◽  
Aditya Gupta ◽  
Nitin Chopra
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Silicon Nanowires ◽  
Au Nanoparticles ◽  
Morphological Evolution ◽  
Surface Enhanced Raman Spectroscopy ◽  
Si Nanowires ◽  
One Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

One-dimensional heterostructures composed of silicon (Si) nanowires and uniformly decorated with gold (Au) nanoparticles were fabricated and used as a substrate for organic detection based on the surface-enhanced Raman spectroscopy.

scholarly journals Highly Sensitive Surface Enhanced Raman Spectroscopy from Ag Nanoparticles Decorated Graphene Sheet

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hui Song ◽  
Xin Li ◽  
Sweejiang Yoo ◽  
Yuan Wu ◽  
Weihua Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Size Distribution ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Ag Nps ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman

Surface enhanced Raman spectroscopy (SERS) is a powerful analytical technique and has been most intensively studied. In this work, electroless deposition is proposed for Ag nanoparticles (NPs) decorated on chemical vapor deposition (CVD) growth graphene sheets (GS) to create hybrid SERS substrate. From three aspects of size distribution, morphology, and coverage, Ag NPs controllable decoration on GS and SERS enhancement factors of the hybrid SERS substrate is investigated. 200–300 times enhanced SERS intensities are detected from the Ag NPs on GS hybrid as compared to pure GS. Controllable decoration is crucial for improving SERS enhancement factorsβEF, becauseβEFfrom quasi cubic Ag NPs on GS is 6.53 times stronger than that from spheric one; 1.6 timesβEFis detected while the Ag NPs size distribution is reduced to half, and when the coverage is doubled,βEFis nearly doubled. This controllable Ag NPs/GS hybrid is capable of serving as a high performance SERS substrate for efficient chemical and biological sensing applications.

Hybrid nanostructure of SiO2@Si with Au-nanoparticles for surface enhanced Raman spectroscopy

Nanoscale ◽  
2019 ◽  
Vol 11 (28) ◽  
pp. 13484-13493 ◽  
Author(s):  
Huan Yang ◽  
Ben Q. Li ◽  
Xinbing Jiang ◽  
Jinyou Shao
Keyword(s):  
Raman Spectroscopy ◽  
Electric Field ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Local Electric Field ◽  
Hybrid Nanostructure ◽  
Hybrid Resonance ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Hybrid resonance enhanced local electric field for Raman sensing.

Surface-enhanced Raman spectroscopy of blood plasma and serum using Ag and Au nanoparticles: a systematic study

2014 ◽  
Vol 406 (9-10) ◽  
pp. 2355-2365 ◽  
Author(s):  
Alois Bonifacio ◽  
Silvia Dalla Marta ◽  
Riccardo Spizzo ◽  
Silvia Cervo ◽  
Agostino Steffan ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Blood Plasma ◽  
Systematic Study ◽  
Au Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Evaluation of cigarette flavoring quality via surface-enhanced Raman spectroscopy

2018 ◽  
Vol 54 (77) ◽  
pp. 10882-10885 ◽  
Author(s):  
Shi-Qiang Xu ◽  
Bao-Ying Wen ◽  
Li-Na Zhang ◽  
Hua Zhang ◽  
Yang Gao ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Raman Spectroscopy ◽  
Au Nanoparticles ◽  
Principal Component ◽  
Component Analysis ◽  
Surface Enhanced Raman Spectroscopy ◽  
Monolayer Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Herein, surface-enhanced Raman spectroscopy (SERS) combined with principal component analysis (PCA) has been successfully applied in the evaluation of cigarette flavoring quality using monolayer films of Au nanoparticles as substrates.

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