Determination of the illegal adulteration of natural healthcare products with chemical drugs using surface-enhanced Raman scattering

The Analyst ◽  
2018 ◽  
Vol 143 (21) ◽  
pp. 5202-5209 ◽  
Author(s):  
Jiawei Wu ◽  
Lixia Zhang ◽  
Xiangfeng Bu ◽  
Peng Li ◽  
Bing Zhao ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Sodium Alginate ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Coffee Ring Effect

Silver nanoparticles stabilized using sodium alginate were synthesized as SERS substrate to determine vardenafil and rosiglitazone maleate based on the coffee ring effect.

Hydrophilic-hydrophobic graphitic carbon nitride@silver hybrid substrate for recyclable surface-enhanced Raman scattering-based detection without coffee ring effect

The Analyst ◽  
2021 ◽  
Author(s):  
Yanjia Jiang ◽  
Huimin Sun ◽  
Chenjie Gu ◽  
Yongling Zhang ◽  
Tao Jiang
Keyword(s):  
Raman Scattering ◽  
Carbon Nitride ◽  
Surface Enhanced Raman Scattering ◽  
Graphitic Carbon Nitride ◽  
Sers Substrate ◽  
Organic P ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Coffee Ring Effect

There is a growing interest in developing a multifunctional surface-enhanced Raman scattering (SERS) substrate to deal with the challenge of the pretreatment-free detection and degradation of hazardous molecules in organic...

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.

A self-referenced method for determination of patulin by surface-enhanced Raman scattering using gold nanobipyramids as the substrate

2019 ◽  
Vol 11 (40) ◽  
pp. 5142-5149 ◽  
Author(s):  
Yan Kang ◽  
Hai-Xin Gu ◽  
Xin Zhang
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Gold Nanobipyramids

A 4-MBA probe was employed to detect patulin using gold nanobipyramids as the SERS substrate.

scholarly journals Correction: Determination of ferric ions using surface-enhanced Raman scattering based on desferrioxamine-functionalized silver nanoparticles

2018 ◽  
Vol 54 (78) ◽  
pp. 11053-11053
Author(s):  
Fei Yan ◽  
C. V. Gopal Reddy ◽  
Yam K. Shrestha ◽  
Charina L. Spurgeon ◽  
Apparao B. Kummarapurugu ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Ferric Ions ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Correction for ‘Determination of ferric ions using surface-enhanced Raman scattering based on desferrioxamine-functionalized silver nanoparticles’ by Fei Yan et al., Chem. Commun., 2013, 49, 7962–7964.

Silver Nanoparticle-Doped Polyvinyl Alcohol Coating as a Mediumfor Surface-Enhanced Raman Scattering Analysis

2008 ◽  
Vol 8 (2) ◽  
pp. 955-960 ◽  
Author(s):  
Seher Karabıçak ◽  
Murat Kaya ◽  
Tuan Vo-Dinh ◽  
Mürvet Volkan
Keyword(s):  
Silver Nanoparticles ◽  
Raman Scattering ◽  
Benzoic Acid ◽  
Polyvinyl Alcohol ◽  
Surface Enhanced Raman Scattering ◽  
Sers Substrate ◽  
Experimental Conditions ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

A simple polymer substrate for inducing Surface-Enhanced Raman Scattering (SERS) has been investigated. This SERS substrate consists of a solid support, such as a glass slide covered with polyvinyl alcohol (PVA) impregnated with fine silver nanoparticles. The preparation simply involves mixing aqueous PVA polymer with solid AgNO3 to produce a solution that can be easily spin coated on the glass substrate and dried to obtain a hard translucent coating. Aqueous solution of FeSO4·7H2O was used to reduce Ag+ ions to silver nanoparticles. The effects of various experimental conditions of sample preparation were investigated in order to improve the Raman enhancement efficiency of the substrate. The overall substrate performance was evaluated with the use of biologically important compounds: benzoic acid, p-amino benzoic acid, pyridine and dopamine. The spectral features of these compounds closely matched with those reported in literature. The use of the polymer matrix made the SERS substrate resistant to scratching, therefore, improving it to be more suitable for field applications. The hydrophilic nature of the polymer provides additional advantages for probing biological samples. The shelf-life of the dried, unreduced substrates is at least one month.

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