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.

Detection of leucine aminopeptidase activity in serum using surface-enhanced Raman spectroscopy

The Analyst ◽  
2019 ◽  
Vol 144 (4) ◽  
pp. 1394-1400 ◽  
Author(s):  
Dan Guo ◽  
Zhen-Fei Gan ◽  
Lei Jiang ◽  
Mao-Feng Cao ◽  
Fato Tano Patrice ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Leucine Aminopeptidase ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sensitive Detection ◽  
Aminopeptidase Activity ◽  
Specific Reaction ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

A specific reaction-based SERS approach was developed for the selective and sensitive detection of leucine aminopeptidase activity in serum.

Sensitive Detection of Melamine Using Surface Enhanced Raman Spectroscopy on Solid Substrates

2010 ◽  
Author(s):  
Evelyn Kämmer ◽  
Anne März ◽  
Paulo Augusto Da Costa Filho ◽  
Fabien Robert ◽  
Petra Rösch ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Sensitive Detection ◽  
Surface Enhanced ◽  
Solid Substrates ◽  
Surface Enhanced Raman

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.

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