Spectroscopic and design considerations for quartz-bound Au nanoparticle SERS substrates in chemical and biological detection

2007 ◽  
Author(s):  
William N. Radicic ◽  
Eric V. Ni ◽  
Augustus W. Fountain III
2016 ◽  
Vol 26 (44) ◽  
pp. 8137-8145 ◽  
Author(s):  
Shaorong Si ◽  
Wenkai Liang ◽  
Yinghui Sun ◽  
Jing Huang ◽  
Weiliang Ma ◽  
...  

Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7232-7236 ◽  
Author(s):  
Yi-Chung Wang ◽  
Joseph S. DuChene ◽  
Fengwei Huo ◽  
Wei David Wei

The widespread implementation of surface enhanced Raman scattering (SERS) techniques for chemical and biological detection requires an inexpensive, yet robust SERS substrate with high sensitivity and reproducibility.


2018 ◽  
Vol 13 (6) ◽  
pp. 868-871
Author(s):  
Yan‐meng Li ◽  
Li‐wei Wang ◽  
Ruo‐ping Li ◽  
Jun‐he Han ◽  
Ming‐ju Huang

2016 ◽  
Vol 9 (1) ◽  
pp. 513-520 ◽  
Author(s):  
Deribachew Bekana ◽  
Rui Liu ◽  
Meseret Amde ◽  
Jing-Fu Liu

Nanomaterials ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1501
Author(s):  
Guixian Zhu ◽  
Lin Cheng ◽  
Gannan Liu ◽  
Lianqing Zhu

Developing ideal surface-enhanced Raman scattering (SERS) substrates is significant in biological detection. Compared with free non-aggregated noble metal nanoparticles, loading metal nanoparticles on a large matrix can achieve a higher SERS effect due to the existence of many “hot spots”. A novel SERS substrate with intense “hot spots” was prepared through reducing gold ions with silicon nanocrystal containing polymer microspheres. The substrate exhibits high SERS sensitivity with an enhancement factor of 5.4 × 107. By applying 4-mercaptopyridine as a Raman reporter, the developed SERS substrate can realize measurement of pH values. The intensity ratio of 1574 to 1607 cm−1 of 4-mercaptopyridine showed excellent pH sensitivity, which increased as the surrounding pH increased. With good stability and reliability, the pH sensor is promising in the design of biological detection devices.


2014 ◽  
Vol 3 (3) ◽  
pp. 139-149
Author(s):  
Seon Mi Shin ◽  
Kyeong Woo Choi ◽  
Seong Ji Ye ◽  
Young Yun Kim ◽  
O Ok Park

Nanoscale ◽  
2015 ◽  
Vol 7 (32) ◽  
pp. 13427-13437 ◽  
Author(s):  
Min Ye ◽  
Zewen Wei ◽  
Fei Hu ◽  
Jianxin Wang ◽  
Guanglu Ge ◽  
...  

A method featuring fast assembling microarrays of superparamagnetic Fe3O4@Au nanoparticle clusters as highly reproducible SERS substrates is reported.


Small ◽  
2012 ◽  
Vol 8 (14) ◽  
pp. 2239-2249 ◽  
Author(s):  
Sarah M. Adams ◽  
Salvatore Campione ◽  
Joshua D. Caldwell ◽  
Francisco J. Bezares ◽  
James C. Culbertson ◽  
...  

2021 ◽  
Vol 14 (1) ◽  
pp. 228
Author(s):  
Xiaoqiao Huang ◽  
Li Cai ◽  
Tingting Fan ◽  
Kexi Sun ◽  
Le Yao ◽  
...  

Here we report a simple fabrication method for large-scale hybrid surface-enhanced Raman scattering (SERS) active substrates composed of Au-nanoparticle-decorated three-dimensional (3D) Cu(OH)2@HKUST-1 (Cu3(btc)2, H3btc = 1,3,5-benzenetricarboxylic acid) nanorod arrays on a woven Cu mesh (Cu mesh/Cu(OH)2@HKUST-1@Au). Cu(OH)2 nanorods were first obtained from a simple in situ chemical engraving Cu mesh and then utilized as self-sacrificing templates to achieve HKUST-1 nanocube-assembled nanorods; finally, Au nanoparticles (Au NPs) were sputtered onto the Cu(OH)2@HKUST-1 nanorods. Due to the large surface area, the three-dimensional Cu mesh/Cu(OH)2@HKUST-1 nanorods could load high-density Au NPs and capture target detection molecules, which is beneficial to the formation of a strong electromagnetic field coupling between Au NPs, and provides abundant “hot spots” for a sensitive and uniform SERS effect. Using the Cu mesh/Cu(OH)2@HKUST-1@Au nanorod arrays as the SERS substrate, 10−9 M Rhodamine 6G and 10−8 M 4-aminothiophenolcan were identified. To verify their practical application, the fabricated arrays were employed as SERS substrates for the detection of thiram, and 10−8 M thiram could be recognized. The hybrid SERS substrates show potential applications in the field of environmental pollutant detection and this is of great significance to the sustainable development of the environment.


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