scholarly journals Spiked gold nanotriangles: formation, characterization and applications in surface-enhanced Raman spectroscopy and plasmon-enhanced catalysis

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8152-8160 ◽  
Author(s):  
Ferenc Liebig ◽  
Radwan M. Sarhan ◽  
Matias Bargheer ◽  
Clemens N. Z. Schmitt ◽  
Armen H. Poghosyan ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Reduction Process ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostars ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Gold Nanotriangles

We show the formation of metallic spikes on the surface of gold nanotriangles (AuNTs) by using the same reduction process which has been used for the synthesis of gold nanostars leading to a higher SERS enhancement by a factor of 75.

Rapid Detection of Carbapenemase-Producing Enterobacteriacae Based on Surface-Enhanced Raman Spectroscopy with Gold Nanostars

2020 ◽  
Vol 6 (5) ◽  
pp. 947-953 ◽  
Author(s):  
Yen Lynn Wong ◽  
Wei Cherng Malvin Kang ◽  
Miguel Reyes ◽  
Jeanette Woon Pei Teo ◽  
James Chen Yong Kah
Keyword(s):  
Raman Spectroscopy ◽  
Rapid Detection ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostars ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Designing dendronic-Raman markers for sensitive detection using surface-enhanced Raman spectroscopy

RSC Advances ◽  
2019 ◽  
Vol 9 (48) ◽  
pp. 28222-28227
Author(s):  
Priyanka Jain ◽  
Robi Sankar Patra ◽  
Sridhar Rajaram ◽  
Chandrabhas Narayana
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sensitive Detection ◽  
Trace Detection ◽  
New Approach ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A new approach of tuning SERS enhancement with the aid of coupling chemistry for trace detection. A greater number of Raman-active molecules are constrained in a dendronic framework as an improved SERS analyte.

scholarly journals Highly Sensitive Surface Enhanced Raman Spectroscopy from Ag Nanoparticles Decorated Graphene Sheet

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Hui Song ◽  
Xin Li ◽  
Sweejiang Yoo ◽  
Yuan Wu ◽  
Weihua Liu ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Size Distribution ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sers Substrate ◽  
Ag Nps ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Enhancement Factors ◽  
Surface Enhanced Raman

Surface enhanced Raman spectroscopy (SERS) is a powerful analytical technique and has been most intensively studied. In this work, electroless deposition is proposed for Ag nanoparticles (NPs) decorated on chemical vapor deposition (CVD) growth graphene sheets (GS) to create hybrid SERS substrate. From three aspects of size distribution, morphology, and coverage, Ag NPs controllable decoration on GS and SERS enhancement factors of the hybrid SERS substrate is investigated. 200–300 times enhanced SERS intensities are detected from the Ag NPs on GS hybrid as compared to pure GS. Controllable decoration is crucial for improving SERS enhancement factorsβEF, becauseβEFfrom quasi cubic Ag NPs on GS is 6.53 times stronger than that from spheric one; 1.6 timesβEFis detected while the Ag NPs size distribution is reduced to half, and when the coverage is doubled,βEFis nearly doubled. This controllable Ag NPs/GS hybrid is capable of serving as a high performance SERS substrate for efficient chemical and biological sensing applications.

Synthesis and characterisation of dual plasmonic gold nanostars as high‐performance surface‐enhanced Raman spectroscopy substrate

2016 ◽  
Vol 11 (11) ◽  
pp. 769-774 ◽  
Author(s):  
Vijay Raghavan ◽  
Hai Ming Fan ◽  
Eoin K. McCarthy ◽  
Peter Dockery ◽  
Antony Wheatley ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
High Performance ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostars ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Performance Surface

Improvement in surface-enhanced Raman spectroscopy from cubic SiC semiconductor nanowhiskers by adjustment of energy levels

2016 ◽  
Vol 18 (39) ◽  
pp. 27572-27576 ◽  
Author(s):  
Wenna Liu ◽  
Tao Yang ◽  
Junhong Chen ◽  
Yingzhi Chen ◽  
Xinmei Hou ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Energy Levels ◽  
Surface Enhanced Raman Spectroscopy ◽  
Raman Signal ◽  
Sers Enhancement ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A highly enhanced, reproducible Raman signal of the 4-MBA molecule was observed on the surface of SiCNWs. Improved SERS enhancement was also achieved in these nanowhiskers by adjusting the energy levels.

Tunable gold nanostars for surface enhanced Raman spectroscopy

2012 ◽  
Vol 249 (6) ◽  
pp. 1188-1192 ◽  
Author(s):  
Emilia Giorgetti ◽  
Silvana Trigari ◽  
Alessio Rindi ◽  
Giancarlo Margheri ◽  
Stefano Sottini ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Gold Nanostars ◽  
Surface Enhanced ◽  
Surface Enhanced Raman
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