Plasmonic 3D Semiconductor–Metal Nanopore Arrays for Reliable Surface-Enhanced Raman Scattering Detection and In-Site Catalytic Reaction Monitoring

ACS Sensors ◽  
2018 ◽  
Vol 3 (11) ◽  
pp. 2446-2454 ◽  
Author(s):  
Maofeng Zhang ◽  
Tun Chen ◽  
Yongkai Liu ◽  
Jiluan Zhang ◽  
Haoran Sun ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Catalytic Reaction ◽  
Surface Enhanced Raman Scattering ◽  
Reaction Monitoring ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Nanopore Arrays ◽  
Enhanced Raman Scattering

Surface enhanced Raman scattering based reaction monitoring of in vitro decyclization of creatinine → creatine

RSC Advances ◽  
2016 ◽  
Vol 6 (64) ◽  
pp. 58943-58949 ◽  
Author(s):  
Debraj Gangopadhyay ◽  
Poornima Sharma ◽  
Sachin Kumar Singh ◽  
Pushkar Singh ◽  
Volker Deckert ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Reaction Monitoring ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Raman signatures of decyclization of creatinine to creatine appear after 120 min at pH 8, 60 min at pH 10 and 30 min at pH 12. Signature of reversibility at later stages of the reaction.

scholarly journals Graphene-coupled nanowire hybrid plasmonic gap mode–driven catalytic reaction revealed by surface-enhanced Raman scattering

Nanophotonics ◽  
2020 ◽  
Vol 9 (15) ◽  
pp. 4519-4527
Author(s):  
Ze Li ◽  
Yan Pan ◽  
Qingzhang You ◽  
Lisheng Zhang ◽  
Duan Zhang ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Catalytic Reaction ◽  
Oblique Incidence ◽  
Normal Incidence ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Plasmonic Gap ◽  
Gap Mode

AbstractThe single-layer graphene (SLG)-coupled nanowire (NW) hybrid plasmonic gap mode (PGM)-driven molecular catalytic reaction was investigated experimentally and theoretically. First, an SLG-coupled NW was constructed, then the surface-enhanced Raman scattering (SERS) effect of graphene in the hybrid plasmonic gap was studied via the normal and oblique incidence of excitation light. The SERS peaks of the D and G of graphene are more intensely enhanced by oblique incidence than by normal incidence. Furthermore, the catalytic reaction of the dimerization of the 4-nitrobenzenethiol molecule to p,p′-dimercaptoazobenzene molecule driven by PGM was carried out by SERS. It was demonstrated that the efficiency of the PGM-driven catalytic reaction is much higher for oblique incidence than that for normal incidence. The mechanism of the PGM-driven catalytic reaction was studied by a finite-difference time-domain numerical simulation. When the PGM is excited by oblique incidence with θ = 30°, the coupling between the NW and SLG/SiO2 substrate increases to the maximum value. This is clearly evidenced by the excitation of a vertical bonding dipolar plasmon mode under the dipole approximation. The theoretical and experimental results were consistent with each other. This research may open up a pathway toward controlling PGM-driven catalytic reactions through polarization changes in excitation laser incidence on single anisotropic nanostructures.

scholarly journals Chemically non-perturbing SERS detection of a catalytic reaction with black silicon

Nanoscale ◽  
2018 ◽  
Vol 10 (20) ◽  
pp. 9780-9787 ◽  
Author(s):  
E. Mitsai ◽  
A. Kuchmizhak ◽  
E. Pustovalov ◽  
A. Sergeev ◽  
A. Mironenko ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Catalytic Reaction ◽  
Surface Enhanced Raman Scattering ◽  
High Index ◽  
Black Silicon ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sers Detection ◽  
Enhanced Raman Scattering

All-dielectric resonant nanostructures made of high-index dielectrics have recently emerged as a promising surface-enhanced Raman scattering platform which can complement or replace the metal-based counterparts in routine sensing measurements.

Gold nanoparticle-loaded filter paper: a recyclable dip-catalyst for real-time reaction monitoring by surface enhanced Raman scattering

2015 ◽  
Vol 51 (22) ◽  
pp. 4572-4575 ◽  
Author(s):  
Guangchao Zheng ◽  
Lakshminarayana Polavarapu ◽  
Luis M. Liz-Marzán ◽  
Isabel Pastoriza-Santos ◽  
Jorge Pérez-Juste
Keyword(s):  
Raman Scattering ◽  
Real Time ◽  
Gold Nanoparticle ◽  
Chemical Reactions ◽  
Filter Paper ◽  
Surface Enhanced Raman Scattering ◽  
Reaction Monitoring ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

While acting as catalysts, Au NP-loaded paper composites display excellent surface enhanced Raman scattering (SERS) efficiency, allowing the real-time monitoring of chemical reactions.

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