Electrochemical growth of dendritic silver nanostructures as facile SERS substrates

CrystEngComm ◽  
2021 ◽  
Author(s):  
Muhammad Usman Amin ◽  
Lingling Zhang ◽  
Rui Hao ◽  
Dongjie Zhang ◽  
Hongjun You ◽  
...  
Keyword(s):  
Silver Nanostructures ◽  
Electrochemical Growth ◽  
Sers Substrates

The well-defined silver dendritic nanostructure with a precisely tailored trunk and branches, as well as decorated nanoparticles.

scholarly journals Photocatalytic growth of dendritic silver nanostructures as SERS substrates

2012 ◽  
Vol 48 (10) ◽  
pp. 1559-1561 ◽  
Author(s):  
Katrien G. M. Laurier ◽  
Michel Poets ◽  
Frederik Vermoortele ◽  
Gert De Cremer ◽  
Johan A. Martens ◽  
...  
Keyword(s):  
Silver Nanostructures ◽  
Sers Substrates

Highly robust, uniform and ultra-sensitive surface-enhanced Raman scattering substrates for microRNA detection fabricated by using silver nanostructures grown in gold nanobowls

Nanoscale ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 3680-3687 ◽  
Author(s):  
Taeksu Lee ◽  
Jung-Sub Wi ◽  
Aram Oh ◽  
Hee-Kyung Na ◽  
JaeJong Lee ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Silver Nanostructures ◽  
Sers Substrates ◽  
Microrna Detection ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Highly sensitive and reproducible suface enhanced Raman spectroscopy (SERS) substrates were fabricated by growing multiple silver nanocrystals inside periodically arrayed gold nanobowls.

Synthesis of Silver Nanostructures and their Application in Highly Sensitive SERS Sensors

2017 ◽  
Vol 68 (1) ◽  
pp. 98 ◽  
Author(s):  
Alok Kumar Srivastava ◽  
Punam Awasthi ◽  
Sanjay Kanojia ◽  
N. S. Neeraj ◽  
Pankaj Sharma ◽  
...  
Keyword(s):  
Glass Substrate ◽  
Signal Enhancement ◽  
Silver Nanostructures ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Biowarfare Agent ◽  
Enhanced Raman Scattering ◽  
Chemical Synthesis Route

<p class="p1">A comparison of Surface Enhanced Raman Scattering (SERS) activity of chemically synthesised silver nanostructures with different shapes is reported. The silver nanostructures of cubical, prism and wire like morphology were synthesised using chemical synthesis route and utilised as SERS substrates. The sensors were fabricated by spin coating these materials over a Silicon or glass substrate. The fabricated sensors were used to analyse response with two different analytes, 4-Mercaptobenzoic acid and Rhodamine 6G under different concentrations. The signal enhancement was compared with a silver coated thin film over glass substrate and it was observed that the enhancement of the order of 10<span class="s1"><sup>3 </sup></span>is achieved. The nanowire performed better than the other forms of silver and gave a higher signal enhancement for all the analytes as compared to other nanostructures. The fabricated sensors may be useful for various applications including explosive and biowarfare agent detection.</p>

scholarly journals Amorphous Carbon Generation as a Photocatalytic Reaction on DNA-Assembled Gold and Silver Nanostructures

Molecules ◽  
2019 ◽  
Vol 24 (12) ◽  
pp. 2324 ◽  
Author(s):  
Christian Heck ◽  
Yuya Kanehira ◽  
Janina Kneipp ◽  
Ilko Bald
Keyword(s):  
Amorphous Carbon ◽  
Silver Nanostructures ◽  
Time Resolved ◽  
Sers Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nanoparticle Aggregates ◽  
Enhanced Raman Scattering ◽  
The Many ◽  
Power Densities

Background signals from in situ-formed amorphous carbon, despite not being fully understood, are known to be a common issue in few-molecule surface-enhanced Raman scattering (SERS). Here, discrete gold and silver nanoparticle aggregates assembled by DNA origami were used to study the conditions for the formation of amorphous carbon during SERS measurements. Gold and silver dimers were exposed to laser light of varied power densities and wavelengths. Amorphous carbon prevalently formed on silver aggregates and at high power densities. Time-resolved measurements enabled us to follow the formation of amorphous carbon. Silver nanolenses consisting of three differently-sized silver nanoparticles were used to follow the generation of amorphous carbon at the single-nanostructure level. This allowed observation of the many sharp peaks that constitute the broad amorphous carbon signal found in ensemble measurements. In conclusion, we highlight strategies to prevent amorphous carbon formation, especially for DNA-assembled SERS substrates.

Facile Fabrication of Homogeneous 3D Silver Nanostructures on Gold-Supported Polyaniline Membranes as Promising SERS Substrates

Langmuir ◽  
2010 ◽  
Vol 26 (11) ◽  
pp. 8882-8886 ◽  
Author(s):  
Ping Xu ◽  
Nathan H. Mack ◽  
Sea-Ho Jeon ◽  
Stephen K. Doorn ◽  
Xijiang Han ◽  
...  
Keyword(s):  
Silver Nanostructures ◽  
Sers Substrates ◽  
Facile Fabrication
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