scholarly journals Silicon Microchannel-Driven Raman Scattering Enhancement to Improve Gold Nanorod Functions as a SERS Substrate toward Single-Molecule Detection

2021 ◽  
Author(s):  
Jaciara Bär ◽  
Anerise de Barros ◽  
Davi H. S. de Camargo ◽  
Mariane P. Pereira ◽  
Leandro Merces ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Gold Nanorod ◽  
Single Molecule Detection ◽  
Sers Substrate

Wrinkled Ag nanostructured gratings towards single molecule detection by ultrahigh surface Raman scattering enhancement

2015 ◽  
Vol 218 ◽  
pp. 145-151 ◽  
Author(s):  
Jun Tang ◽  
Hao Guo ◽  
Meng Chen ◽  
Jiangtao Yang ◽  
Dimitris Tsoukalas ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Single Molecule Detection

Generation of Hot Spots with Silver Nanocubes for Single-Molecule Detection by Surface-Enhanced Raman Scattering

2011 ◽  
Vol 123 (24) ◽  
pp. 5587-5591 ◽  
Author(s):  
Matthew Rycenga ◽  
Xiaohu Xia ◽  
Christine H. Moran ◽  
Fei Zhou ◽  
Dong Qin ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Hot Spots ◽  
Surface Enhanced Raman Scattering ◽  
Single Molecule Detection ◽  
Silver Nanocubes ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Large-scale growth of sharp gold nano-cones for single-molecule SERS detection

RSC Advances ◽  
2016 ◽  
Vol 6 (4) ◽  
pp. 2882-2887 ◽  
Author(s):  
Ling Zhang ◽  
Hongwen Liu ◽  
Luyang Chen ◽  
Pengfei Guan ◽  
Bin Chen ◽  
...  
Keyword(s):  
Single Molecule ◽  
High Performance ◽  
Large Scale ◽  
Nanoporous Gold ◽  
Single Molecule Detection ◽  
Sers Substrate ◽  
Scale Growth ◽  
Free Standing ◽  
Sers Detection

Quasi-periodic Au nano-cone arrays uniformly sprout on centimeter-sized free-standing nanoporous gold (NPG) films via epitaxial plating, and the nano-cones@NPG serve as a high-performance SERS substrate for single molecule detection.

scholarly journals Heterostructured CuO@ZnO@Ag biomimetic setaria as wettability-switchable difunctional SERS substrate for trace pesticide and DNA detections

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Chuanshen Han ◽  
Yisheng Wei ◽  
Fengcai Lei ◽  
Shulong Zhao ◽  
Yumeng Wang ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Raman Scattering ◽  
Single Molecule ◽  
Time Domain ◽  
Deoxyribonucleic Acid ◽  
Limit Of Detection ◽  
Sers Substrate ◽  
Single Molecule Level ◽  
Relative Standard ◽  
Finite Different Time Domain

Abstract Wettability modification is an effective way in tailoring hotspots in surface Raman scattering (SERS) nowadays. However, due to the theoretical contradiction between hydrophobic and hydrophilic strategies, opposite views are usually put forward in building SERS structures. To realize the integration of hydrophobicity and hydrophilia in the same substrate, a wettability-switchable SERS architecture composed of heterostructured CuO@ZnO@Ag biomimetic nano Setaria (NS) has been designed and prepared in this paper. Experimentally, the structure shows impressive SERS performance under both hydrophobic and hydrophilic states. The limit of detection approaches even to single-molecule level and the lowest relative standard deviation is only ca 9.8%. Finite-different time-domain simulations and experimental analyses were systemically made to unearth the mechanism deep behind. Besides, owing to fine quantifiability, the CuO@ZnO@Ag NS shows promising potential in the detection of trace pesticide and deoxyribonucleic acid. This work provides a new idea for integrating the strategies of ‘concentration’ and ‘decentralization’, endowing SERS structure with wider application, and is also meaningful for other surface sciences.

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