scholarly journals Nanostructured silver dendrites for photon-induced Cysteine dimerization

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Chia‐Yu Chang ◽  
Yu‐Mei Chen ◽  
Yu‐Bin Huang ◽  
Chin-Hung Lai ◽  
U-Ser Jeng ◽  
...  
Keyword(s):  
Functional Groups ◽  
Coupling Reaction ◽  
Surface Enhanced Raman Spectroscopy ◽  
Raman Scattering Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Alkaline Conditions ◽  
Silver Dendrites ◽  
Acidic Conditions ◽  
Controlled Adsorption

AbstractUnder a controlled adsorption environment, L-cysteine molecules can be chemically adsorbed to the dendritic silver (Ag-D) surface by electrochemical methods with different functional groups. It is verified by surface-enhanced Raman spectroscopy that under alkaline conditions (pH = 13.50), the two functional groups of thiol and acid are simultaneously adsorbed on the surface of Ag-D, while NH2 is far from the surface; under acidic conditions (pH = 1.67), adsorption behavior suggests that both NH3+ and COO− are oriented toward the Ag-D surface, and that SH is far from the surface. The structure of L-cysteine adsorption under acidic conditions can be further verified by the addition of an L-cysteine molecule through light-induced coupling reaction to form cystine. Finally, in-situ two-dimensional Raman scattering spectroscopy confirmed the feasibility and uniformity of the coupling reaction.

Plasmon catalytic PATP coupling reaction on Ag-NPs/graphite studied via in situ electrochemical surface-enhanced Raman spectroscopy

2020 ◽  
Vol 22 (41) ◽  
pp. 23482-23490
Author(s):  
Hang Zhong ◽  
Jun Chen ◽  
Jinfan Chen ◽  
Ran Tao ◽  
Jiaolai Jiang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Catalytic Reaction ◽  
Coupling Reaction ◽  
Surface Enhanced Raman Spectroscopy ◽  
Reaction Paths ◽  
Ag Nps ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Plasmon-induced hot holes and electrons play different roles in the PATP coupling reaction, resulting in two different catalytic reaction paths.

scholarly journals Surface-plasmon-induced azo coupling reaction between nitro compounds on dendritic silver monitored by surface-enhanced Raman spectroscopy

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10259-10265 ◽  
Author(s):  
Feng-Hsuan Cho ◽  
Shan-Chi Kuo ◽  
Ying-Huang Lai
Keyword(s):  
Raman Spectroscopy ◽  
Surface Plasmon ◽  
Coupling Reaction ◽  
Surface Enhanced Raman Spectroscopy ◽  
Nitro Compounds ◽  
Coupling Reactions ◽  
Azo Coupling ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Azo coupling reactions with a 4-NTP-functionalized Ag-Ds/GCE composites.

scholarly journals Vibrational spectroscopy of metal carbonyls for bio-imaging and -sensing

The Analyst ◽  
2016 ◽  
Vol 141 (5) ◽  
pp. 1569-1586 ◽  
Author(s):  
Zhiyong Lam ◽  
Kien Voon Kong ◽  
Malini Olivo ◽  
Weng Kee Leong
Keyword(s):  
Raman Spectroscopy ◽  
Transition Metal ◽  
Functional Groups ◽  
Vibrational Spectroscopy ◽  
Surface Enhanced Raman Spectroscopy ◽  
Metal Carbonyls ◽  
Surface Enhanced ◽  
Transition Metal Carbonyls ◽  
Surface Enhanced Raman ◽  
Bio Imaging

Transition metal carbonyls exhibit strong CO absorptions in the 2200–1800 cm−1 region, which is free of interference from other functional groups. This feature has led to their applications in bio-imaging and -sensing, in particular through mid-IR, Raman and more recently, surface-enhanced Raman spectroscopy (SERS).

Chemical preparation and applications of silver dendrites

2014 ◽  
Vol 68 (10) ◽  
Author(s):  
Li Fu ◽  
Tasnuva Tamanna ◽  
Wen-Jing Hu ◽  
Aimin Yu
Keyword(s):  
Hierarchical Structures ◽  
Surface Enhanced Raman Spectroscopy ◽  
Future Research ◽  
Surface Enhanced Fluorescence ◽  
Preparation Methods ◽  
Practical Applications ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Methods Of Synthesis ◽  
Silver Dendrites

AbstractSilver dendrites have received immense attention because of their fascinating hierarchical structures and unique properties. Depending on the methods of synthesis, Ag dendrites can be implemented in numerous fields. This review summarizes a variety of Ag dendrites preparation techniques. The involved growth mechanisms are investigated in order to control the formation progress more effectively. With regard to the applications, this article mainly focuses on surface enhanced Raman spectroscopy, catalysis, superhydrophobic surface and surface enhanced fluorescence by using Ag dendrites. The remaining issues of the preparation methods, which impede the practical applications of Ag dendrites, are pointed out to enlighten their future research.

scholarly journals 3D Silver Dendrites for Single‐molecule Imaging by Surface‐enhanced Raman Spectroscopy

ChemNanoMat ◽  
2020 ◽  
Author(s):  
Hanna V. Bandarenka ◽  
Nadzeya V. Khinevich ◽  
Aliaksandr A. Burko ◽  
Sergey V. Redko ◽  
Siarhei A. Zavatski ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Single Molecule ◽  
Surface Enhanced Raman Spectroscopy ◽  
Single Molecule Imaging ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Silver Dendrites

Surface-Enhanced Raman Spectroscopy of CrO3/H2SO4-Etched Polyethylene Films

1989 ◽  
Vol 43 (2) ◽  
pp. 226-229 ◽  
Author(s):  
Lorraine M. Siperko
Keyword(s):  
Raman Spectroscopy ◽  
Sulfuric Acid ◽  
Functional Groups ◽  
Surface Enhanced Raman Spectroscopy ◽  
Polymer Chemistry ◽  
Polyethylene Films ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Sulfate Species ◽  
Thin Polyethylene

The effects of chromic/sulfuric acid etchant on thin polyethylene films are being studied by Raman spectroscopy. The functional groups on the surface of the etched films were found to differ from those present in the bulk. Cr-O bands appeared in both the bulk and SERS spectra, and sulfate species were detected on the surface only. The ability to differentiate between the surface and bulk polymer chemistry of CrO3/H2SO4-etched polyethylene using surface-enhanced Raman spectroscopy is demonstrated.

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