Highly Sensitive and Reproducible SERS Substrates Based on Ordered Micropyramid Array and Silver Nanoparticles

2021 ◽  
Author(s):  
Chengpeng Zhang ◽  
Shuai Chen ◽  
Zhaoliang Jiang ◽  
Zhenyu Shi ◽  
Jilai Wang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Sers Substrates ◽  
Highly Sensitive

scholarly journals In-Situ Grown Silver Nanoparticles on Nonwoven Fabrics Based on Mussel-Inspired Polydopamine for Highly Sensitive SERS Carbaryl Pesticides Detection

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 384 ◽  
Author(s):  
Zhiliang Zhang ◽  
Tiantian Si ◽  
Jun Liu ◽  
Guowei Zhou
Keyword(s):  
Silver Nanoparticles ◽  
Collection Efficiency ◽  
High Sensitivity ◽  
Sers Substrate ◽  
Analytical Sensitivity ◽  
Sers Substrates ◽  
Rapid Sampling ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The rapid sampling and efficient collection of target molecules from a real-world surface is fairly crucial for surface-enhanced Raman scattering (SERS) to detect trace pesticide residues in the environment and in agriculture fields. In this work, a versatile approach was exploited to fabricate a flexible SERS substrate for highly sensitive detection of carbaryl pesticides, using in-situ grown silver nanoparticles (AgNPs)on non-woven (NW) fabric surfaces based on mussel-inspired polydopamine (PDA) molecules. The obtained NW@PDA@AgNPs fabrics showed extremely sensitive and reproducible SERS signals toward crystal violet (CV) molecules, and the detection limit was as low as 1.0 × 10−12 M. More importantly, these NW@PDA@AgNPs fabrics could be directly utilized as flexible SERS substrates for the rapid extraction and detection of trace carbaryl pesticides from various fruit surfaces through a simple swabbing approach. It was identified that the detection limits of carbaryl residues from apple, orange, and banana surfaces were approximately decreased to 4.02 × 10−12, 6.04 × 10−12, and 5.03 × 10−12 g, respectively, demonstrating high sensitivity and superior reliability. These flexible substrates could not only drastically increase the collection efficiency from multifarious irregular-shaped matrices, but also greatly enhance analytical sensitivity and reliability for carbaryl pesticides. The fabricated flexible and multifunctional SERS substrates would have great potential to trace pesticide residue detection in the environment and bioscience fields.

Tailoring Size and Coverage Density of Silver Nanoparticles on Monodispersed Polymer Spheres as Highly Sensitive SERS Substrates

2016 ◽  
Vol 11 (17) ◽  
pp. 2428-2435 ◽  
Author(s):  
Yougen Hu ◽  
Tao Zhao ◽  
Pengli Zhu ◽  
Yu Zhu ◽  
Xianwen Liang ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Sers Substrates ◽  
Coverage Density ◽  
Highly Sensitive ◽  
Polymer Spheres

Hierarchical self-assembly of random mica nanosheet-stabilized silver nanoparticles into flower microstructures for highly sensitive SERS substrates

RSC Advances ◽  
2015 ◽  
Vol 5 (105) ◽  
pp. 86522-86528 ◽  
Author(s):  
Chih-Wei Chiu ◽  
Po-Hsien Lin
Keyword(s):  
Silver Nanoparticles ◽  
Self Assembly ◽  
High Efficiency ◽  
Use Of Self ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
Self Assembled

The use of self-assembled novel flower-like microstructures as SERS substrates allowed high-efficiency detection of adenine molecules from DNA.

In situ and facile synthesis of silver nanoparticles on baby wipes and their applications in catalysis and SERS

RSC Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 5016-5023 ◽  
Author(s):  
Bharat Baruah
Keyword(s):  
Silver Nanoparticles ◽  
Composite Materials ◽  
Heterogeneous Catalyst ◽  
Facile Synthesis ◽  
Sers Substrates ◽  
Efficient Heterogeneous Catalyst

Silver nanoparticles were immobilized on fibers to create composite materials. The composites are shown to be efficient heterogeneous catalyst with very good recyclability. These composite materials are also proven to be good SERS substrates.

scholarly journals Silver nanoparticles: green synthesis, self-assembled nanostructures and their application as SERS substrates

2015 ◽  
Vol 39 (4) ◽  
pp. 2839-2846 ◽  
Author(s):  
Elias de Barros Santos ◽  
Natiara Vaughn Madalossi ◽  
Fernando Aparecido Sigoli ◽  
Italo Odone Mazali
Keyword(s):  
Silver Nanoparticles ◽  
Green Synthesis ◽  
Probe Molecules ◽  
Citrus Peel ◽  
Sers Substrates ◽  
Self Assembled ◽  
Raman Probe

Plasmonic silver nanoparticles synthesized using citrus peel extracts exhibit SERS activity for different Raman probe molecules.

Developing acetylcholinesterase-based inhibition assay by modulated synthesis of silver nanoparticles: applications for sensing of organophosphorus pesticides

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 61998-62006 ◽  
Author(s):  
D. Nanda Kumar ◽  
A. Rajeshwari ◽  
S. A. Alex ◽  
M. Sahu ◽  
A. M. Raichur ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Organophosphorus Compounds ◽  
Organophosphorus Pesticides ◽  
Inhibition Assay ◽  
Highly Sensitive

A novel and highly sensitive probe for the detection of organophosphorus compounds (OPs) using acetylcholinesterase (AChE) and acetylthiocholine (ATCh) during the modulated synthesis of silver nanoparticles.

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