Inhibition Assay of Yeast Cell Walls by Plasmon Resonance Rayleigh Scattering and Surface-Enhanced Raman Scattering Imaging

Langmuir ◽  
2012 ◽  
Vol 28 (24) ◽  
pp. 8952-8958 ◽  
Author(s):  
Kiran Manikantan Syamala ◽  
Hiroko Abe ◽  
Yasuko Fujita ◽  
Kazuya Tomimoto ◽  
Vasudevanpillai Biju ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Yeast Cell ◽  
Plasmon Resonance ◽  
Cell Walls ◽  
Rayleigh Scattering ◽  
Resonance Rayleigh Scattering ◽  
Inhibition Assay ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Facile synthesis of a highly SERS active nanosilver sol using microwaves and its application in the detection of E. coli using Victoria blue B as a molecular probe

2016 ◽  
Vol 8 (24) ◽  
pp. 4881-4887 ◽  
Author(s):  
Yaohui Wang ◽  
Xinghui Zhang ◽  
Guiqing Wen ◽  
Aihui Liang ◽  
Zhiliang Jiang
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Rayleigh Scattering ◽  
Molecular Probe ◽  
Resonance Rayleigh Scattering ◽  
Facile Synthesis ◽  
E Coli ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A green microwave procedure was developed to synthesize highly surface-enhanced Raman scattering (SERS) active silver nanoparticles (AgNPs) with a resonance Rayleigh scattering (RRS) peak at 450 nm, and a new SERS enhancement mechanism was proposed.

Plasmon resonance tuning in metal nanostars for surface enhanced Raman scattering

2014 ◽  
Vol 25 (23) ◽  
pp. 235303 ◽  
Author(s):  
Manohar Chirumamilla ◽  
Anisha Gopalakrishnan ◽  
Andrea Toma ◽  
Remo Proietti Zaccaria ◽  
Roman Krahne
Keyword(s):  
Raman Scattering ◽  
Plasmon Resonance ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Resonance Tuning ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Sensitive Aptamer SERS and RRS Assays for Trace Oxytetracycline Based on the Catalytic Amplification of CuNCs

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2501
Author(s):  
Shuxin Chen ◽  
Xiaowen Lv ◽  
Jifan Shen ◽  
Siqi Pan ◽  
Zhiliang Jiang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Rayleigh Scattering ◽  
Molecular Probes ◽  
Resonance Rayleigh Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Wet Chemical ◽  
Amplification Reaction

A new method for the determination of oxytetracycline (OTC) has been established by coupling the catalytic amplification reaction of copper nanoclusters (CuNCs) with the aptamer reaction. CuNCs prepared by a wet chemical method have the catalytic activity for the formation of gold nanoparticles (AuNPs) resulting from a HAuCl4-ethanol (En) reaction. The experimental results showed that OTC aptamer (Apt) can be adsorbed on the surface of CuNCs in a non-specific way, thus inhibiting its catalytic activity. When OTC was added to the solution, the OTC-Apt complex was generated by a specific reaction, which made the CuNCs desorb and restore their catalytic activity. With the increase of OTC, the recovery of the catalytic activity of CuNCs is strengthened, the reaction speed is accelerated, and the number of AuNPs is increased. The generated AuNPs exhibited surface enhanced Raman scattering (SERS) signals at 1615 cm−1 in the presence of Vitoria blue 4R (VB4R) molecular probes, and a resonance Rayleigh scattering (RRS) peak at 586 nm. There is a good linear relationship between the intensities of SERS, or RRS, and OTC concentration at the range of 37.5–300 ng/L or 37.5–225 ng/L, respectively. A new SERS and RRS assay for the determination of trace OTC based on the regulation of CuNCs catalysis was established.

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