DNA-embedded Au–Ag core–shell nanoparticles assembled on silicon slides as a reliable SERS substrate

The Analyst ◽  
2014 ◽  
Vol 139 (9) ◽  
pp. 2207 ◽  
Author(s):  
Zhong Zhang ◽  
Sha Zhang ◽  
Mengshi Lin
Keyword(s):  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

scholarly journals Performance Improving Method of Aligned Silver Nanorod by Grafting Au@Ag Core–Shell Nanoparticles for Surface-Enhanced Raman Scattering

NANO ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. 1750131 ◽  
Author(s):  
Jian Chen ◽  
Peitao Dong ◽  
Chaoguang Wang ◽  
Chenyu Zhang ◽  
Junfeng Wang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Simple Method ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Core Shell Nanoparticles

A simple method for improving surface-enhanced Raman scattering (SERS) performance of aligned silver nanorod (Ag NR) array was investigated. This method was to construct a kind of hybrid substrate by grafting Au@Ag core–shell nanoparticles (NPs) into Ag NR array using poly(2-vinylphridine) (P2VPy) as a bridging agent. The hybrid substrate yielded excellent SERS performance as its detection limit improved from 10[Formula: see text] M to 10[Formula: see text] M using trans-1,2-bis(4-pyridyl)ethylene (BPE) as probe molecule, which was increased by two orders of magnitude compared with Ag NR array substrate. The significant improvement of SERS performance of Ag NR arrays was attributed to the addition of Au@Ag core–shell NPs. As a result of surface plasmon resonance generated by the interaction of electromagnetic (EM) (IAEM) filed between NP and NR structures, increasing hotspots were found at the connections of NPs and NRs, the gaps of adjacent rods, and the gaps of two particles consequently. These results were validated by the finite difference time domain (FDTD) calculation. Besides, hybrid substrate shows good performance in stability and reproducibility. The proposed method was simple and robust, which promoted SERS performance of Ag NR array effectively, showing great potential in the application of SERS substrate fabrication and SERS-based bio-chemical sensing.

Preparation of a monolayer array of silica@gold core-shell nanoparticles as a SERS substrate

Optik ◽  
2020 ◽  
Vol 221 ◽  
pp. 165274
Author(s):  
Ciyong Gu ◽  
Shi-Qing Man ◽  
Junqi Tang ◽  
Zhimin Zhao ◽  
Zhenlu Liu ◽  
...  
Keyword(s):  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Gold Core ◽  
Core Shell Nanoparticles

β-Cyclodextrin coated SiO2@Au@Ag core–shell nanoparticles for SERS detection of PCBs

2015 ◽  
Vol 17 (33) ◽  
pp. 21149-21157 ◽  
Author(s):  
Yilin Lu ◽  
Guohua Yao ◽  
Kexi Sun ◽  
Qing Huang
Keyword(s):  
Ag Nanoparticles ◽  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
New Type ◽  
Enhanced Raman Scattering ◽  
Core Shell Nanoparticles

A new type of surface-enhanced Raman scattering (SERS) substrate consisting of β-cyclodextrin (β-CD) coated SiO2@Au@Ag nanoparticles (SiO2@Au@Ag@CD NPs) has been achieved.

Study on the SERS substrate composed of Au@Ag core-shell nanoparticles linked to SiO2 spheres

2017 ◽  
Vol 47 (9) ◽  
pp. 1283-1289
Author(s):  
Huiyun Wu ◽  
Xin Li ◽  
Jiawen Xu ◽  
Congwen Wang ◽  
Zhen Rong ◽  
...  
Keyword(s):  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Sio2 Spheres

scholarly journals A Rapid Detection Method for On-site Screening of Estazolam in Beverages with Au@Ag Core-shell Nanoparticles Paper-based SERS Substrate

2020 ◽  
Vol 36 (6) ◽  
pp. 667-674 ◽  
Author(s):  
Xuanyu SHA ◽  
Si-qin-gao-wa HAN ◽  
Hang ZHAO ◽  
Nan LI ◽  
Chen ZHANG ◽  
...  
Keyword(s):  
Rapid Detection ◽  
Detection Method ◽  
Core Shell ◽  
Sers Substrate ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Preparation and Electrocatalytic Performance of Thin-shell Ni/Pt Core-shell Nanoparticles

2012 ◽  
Vol 27 (1) ◽  
pp. 95-101
Author(s):  
Shi-Bin LIU ◽  
Chun-Ying YANG ◽  
Zhong-Lin ZHANG ◽  
Dong-Hong DUAN ◽  
Xiao-Gang HAO ◽  
...  
Keyword(s):  
Thin Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Electrocatalytic Performance ◽  
Core Shell Nanoparticles

Pluronic-Based Core/Shell Nanoparticles for Drug Delivery and Diagnosis

2013 ◽  
Vol 20 (28) ◽  
pp. 3488-3499 ◽  
Author(s):  
Yon Jung ◽  
Hwanbum Lee ◽  
Jae Kim ◽  
Eun Koo ◽  
Keun Oh ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles
Sign in / Sign up

Export Citation Format

Share Document