scholarly journals Sandwich-like layer-by-layer assembly of gold nanoparticles with tunable SERS properties

2016 ◽  
Vol 7 ◽  
pp. 1028-1032 ◽  
Author(s):  
Zhicheng Liu ◽  
Lu Bai ◽  
Guizhe Zhao ◽  
Yaqing Liu
Keyword(s):  
Gold Nanoparticles ◽  
Low Cost ◽  
Layer By Layer ◽  
Molecular Sensing ◽  
Multilayered Thin Film ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Layer Assembly

Sandwich-like layer-by-layer thin films consisting of polyelectrolytes and gold nanoparticles were utilized to construct surface-enhanced Raman scattering (SERS) substrates with tunable SERS properties. It is found that both the size of the nanoparticles in the layers and the interlayer distance significantly influence the SERS performance of the multilayered thin film. These simple, low-cost, easily processable and controllable SERS substrates have a promising future in the field of molecular sensing.

Centimeter-scale-homogeneous SERS substrates with seven-order global enhancement through thermally controlled plasmonic nanostructures

Nanoscale ◽  
2014 ◽  
Vol 6 (10) ◽  
pp. 5099-5105 ◽  
Author(s):  
Hongmei Liu ◽  
Xinping Zhang ◽  
Tianrui Zhai ◽  
Thomas Sander ◽  
Limei Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Plasmonic Nanostructures ◽  
Solution Processed ◽  
Homogeneous Surface ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Highly homogeneous surface-enhanced Raman scattering substrates were produced on the centimeter scale by annealing solution-processed gold nanoparticles into plasmonic nanoislands.

scholarly journals Microfluidics-Driven Fabrication of a Low Cost and Ultrasensitive SERS-Based Paper Biosensor

2019 ◽  
Vol 9 (7) ◽  
pp. 1387 ◽  
Author(s):  
Alexandra Teixeira ◽  
Juan Hernández-Rodríguez ◽  
Lei Wu ◽  
Kevin Oliveira ◽  
Krishna Kant ◽  
...  
Keyword(s):  
Low Cost ◽  
Anisotropic Particles ◽  
Paper Substrate ◽  
Hybrid Device ◽  
Cell Lineages ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Kinetics Of

Surface-enhanced Raman scattering (SERS) spectroscopy stands out due to its sensitivity, selectivity, and multiplex ability. The development of ready-to-use, simple, and low-cost SERS substrates is one of the main challenges of the field. In this paper, the intrinsic reproducibility of microfluidics technology was used for the fabrication of self-assembled nanoparticle structures over a paper film. The paper SERS substrates were fabricated by assembling anisotropic particles, gold nanostars (GNSs), and nanorods (NRs) onto paper to offer an extra enhancement to reach ultra-sensitive detection limits. A polydimethylsiloxane PDMS-paper hybrid device was used to control the drying kinetics of the nanoparticles over the paper substrate. This method allowed a high reproducibility and homogeneity of the fabrication of SERS substrates that reach limits of detection down to the picomolar range. This simple and low-cost fabrication of a paper-based sensing device was tested for the discrimination of different cell lineages.

ZnO oxide films for ultrasensitive, rapid, and label-free detection of neopterin by surface-enhanced Raman spectroscopy

The Analyst ◽  
2015 ◽  
Vol 140 (15) ◽  
pp. 5090-5098 ◽  
Author(s):  
Agnieszka Kamińska ◽  
Aneta Aniela Kowalska ◽  
Dmytro Snigurenko ◽  
Elżbieta Guziewicz ◽  
Janusz Lewiński ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Low Cost ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Sers Substrates ◽  
Label Free Detection ◽  
Surface Enhanced ◽  
Cost Surface ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Efficient and low-cost surface-enhanced Raman scattering (SERS) substrates based on Au coated zinc oxide layers for the detection of neopterin were prepared.

scholarly journals How gap distance between gold nanoparticles in dimers and trimers on metallic and non-metallic SERS substrates can impact signal enhancement

2021 ◽  
Author(s):  
Alexandr Arbuz ◽  
Alisher Sultangaziyev ◽  
Alisher Rapikov ◽  
Zhanar Kunushpayeva ◽  
Rostislav Bukasov
Keyword(s):  
Gold Nanoparticles ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Signal Enhancement ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
The Impact ◽  
Sers Intensity

.The impact of variation in the interparticle gaps in dimers and trimers of gold nanoparticles (AuNPs), modified with Raman reporter (2-MOTP), on Surface-Enhanced Raman Scattering (SERS) intensity, relative to the...

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