Quantitative detection of crystal violet using a surface-enhanced Raman scattering based on flower-like HAp/Ag nanocomposite

2021 ◽  
Author(s):  
Yamin Lin ◽  
Mengmeng Zheng ◽  
Xin Zhao ◽  
Dan Liu ◽  
Jiamin Gao ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Quantitative Detection ◽  
Sers Substrate ◽  
One Pot ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Herein, we proposed a simple one-pot sol-thermal strategy to prepare highly sensitive and reproducible SERS substrate. The silver-doped hydroxyapatite nanocomposite (HAp/Ag) could suppress the oxidation of the silver nanoparticles, which...

Construction of highly sensitive surface-enhanced Raman scattering (SERS) nanosensor aimed for the testing of glucose in urine

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 53800-53803 ◽  
Author(s):  
Dan Sun ◽  
Guohua Qi ◽  
Shuping Xu ◽  
Weiqing Xu
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Turn On ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A facile, highly sensitive “turn on” SERS nanosensor for the detection of glucose in urine has been developed based on the aggregation of the 4-mercaptophenylboronic acid decorated silver nanoparticles in the specific bonding to glucose.

scholarly journals Quasi-three-dimension Structured Surface-enhanced Raman Scattering Substrates Based on Silver Nanoparticles/ Porous Silicon Hybrid

2021 ◽  
Author(s):  
Thuy Van Nguyen ◽  
Duc Chinh Vu ◽  
Huy Bui ◽  
Thanh Binh Pham ◽  
Thi Hong Cam Hoang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Porous Silicon ◽  
Raman Scattering ◽  
Electrochemical Sensors ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Three Dimension ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Abstract Surface-enhanced Raman scattering (SERS) is a powerful spectroscopic technique for ultrasensitive and selective bio-chemical detection due to its capability of providing “fingerprint” information of molecular structures in low concentrations even at single molecular level. In this work, we present the silver nanoparticles/porous silicon (AgNPs/PSi) hybrid structures as SERS substrates prepared by a fast, straightforward and effective method using the PSi immersion plating in silver nitrate (AgNO3) solution. The nano-silvers can simultaneously grow on the surface and nano-pillars of porous silicon making quasi-three-dimension (quasi-3D) structural SERS substrate that has a large surface area to adsorb moleculars for SERS measurement. The proposed SERS substrate can detect Diphenylamine (DPA) with ultralow concentration of 10-9 M (~0.17 ppb), which would have higher enhancement than 2D surface SERS based on nano-silver deposited on silicon substrate and other electrochemical sensors.

Surface Enhanced Raman Spectroscopy Detection of Crystal Violet Based on an Excellent Silver Nanoparticles/Silicon Pyramid Arrays Structure

2020 ◽  
Vol 15 (11) ◽  
pp. 1321-1326
Author(s):  
Aning Ma ◽  
Wenjing Wei ◽  
Zhongqiang Zhang ◽  
Sichang Peng ◽  
Yurong Wang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Crystal Violet ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced Raman Spectroscopy ◽  
Label Free ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

An efficient surface-enhanced Raman scattering substrate based on silver nanoparticles/silicon pyramid arrays structure is theoretically investigated and experimentally demonstrated. The electric field distributions using finite-element-method are calculated. The surface-enhanced Raman scattering behaviors of sensitivity, uniformity and stability are emphatically discussed and compared by the detection of crystal violet. These theoretical and experimental results reveal that the silver nanoparticles/silicon pyramid arrays substrate is expected to be an effective surface-enhanced Raman scattering platform for label-free sensitive surfaceenhanced Raman spectroscopy detection in areas of biotechnology, medicine and food safety.

Hybrid octahedral Au nanocrystals and Ag nanohole arrays as substrates for highly sensitive and reproducible surface-enhanced Raman scattering

2020 ◽  
Vol 8 (3) ◽  
pp. 1135-1142
Author(s):  
Tiancheng Gong ◽  
Yunfei Luo ◽  
Haibin Zhang ◽  
Chengwei Zhao ◽  
Weisheng Yue ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Hybrid Structure ◽  
Sers Substrate ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Nanohole Arrays ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A 3D SERS substrate with a hybrid structure of octahedral AuNCs and AgNHs exhibits high enhancement and reproducibility.

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