In situ polydopamine-assisted deposition of silver nanoparticles on a two dimensional support as an inexpensive and highly efficient SERS substrate

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 36368-36373 ◽  
Author(s):  
Peilan Wang ◽  
Yanling Zhou ◽  
Ying Wen ◽  
Feng Wang ◽  
Haifeng Yang
Keyword(s):  
Silver Nanoparticles ◽  
Sers Substrate ◽  
Two Dimensional ◽  
Highly Efficient

Versatile substrates were modified with polydopamine followed by in situ AgNP deposition to fabricate a cheap, flexible and disposable SERS substrate.

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.

In situ fabrication of single-crystalline porous ZnO nanoplates on zinc foil to support silver nanoparticles as a stable SERS substrate

CrystEngComm ◽  
2012 ◽  
Vol 14 (18) ◽  
pp. 6023 ◽  
Author(s):  
Heng Yang ◽  
Shou-Qing Ni ◽  
Xiaohong Jiang ◽  
Wei Jiang ◽  
Jinhua Zhan
Keyword(s):  
Silver Nanoparticles ◽  
Sers Substrate ◽  
Single Crystalline ◽  
In Situ Fabrication

Self-evolved hydrogen peroxide boosts photothermal-promoted tumor-specific nanocatalytic therapy

2019 ◽  
Vol 7 (22) ◽  
pp. 3599-3609 ◽  
Author(s):  
Shanshan Gao ◽  
Xiangyu Lu ◽  
Piao Zhu ◽  
Han Lin ◽  
Luodan Yu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Fenton Reaction ◽  
Rational Design ◽  
Tumor Therapy ◽  
Two Dimensional ◽  
Highly Efficient

Highly efficient nanocatalytic tumor therapy has been achieved by in situ self-supplied H2O2-triggered and photothermally-promoted Fenton reaction by the rational design of two-dimensional composite nanoreactors.

Ag-nanogel blended polymeric membranes with antifouling, hemocompatible and bactericidal capabilities

2015 ◽  
Vol 3 (48) ◽  
pp. 9295-9304 ◽  
Author(s):  
Yi Xia ◽  
Chong Cheng ◽  
Rui Wang ◽  
Chuanxiong Nie ◽  
Jie Deng ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Polymeric Membranes ◽  
Highly Efficient

A highly efficient, universal and convenient protocol is reported to fabricate antifouling, hemocompatible, and bactericidal membranes by physically blending of antifouling nanogels and in situ silver nanoparticles immobilization.

scholarly journals Flexible SERS substrate of silver nanoparticles on cotton swabs for rapid in-situ detection of melamine

2022 ◽  
Author(s):  
Wen-Chien Huang ◽  
Ken-Fa Cheng ◽  
Jing-Yuan Shyu
Keyword(s):  
Silver Nanoparticles ◽  
Food Safety ◽  
Raman Scattering ◽  
Sers Substrate ◽  
Fast Method ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
In Situ Detection

It is important to be able to detect melamine via a sensitive and fast method in the field of food safety. Surface-enhanced Raman scattering (SERS) has attracted much attention due...

Surfactant-Free In Situ Synthesis of Sub-5 nm Silver Nanoparticles Embedded Silica Sub-Microspheres as Highly Efficient and Recyclable Catalysts

2018 ◽  
Vol 3 (37) ◽  
pp. 10352-10356 ◽  
Author(s):  
Qihui Shen ◽  
Hanliang Gao ◽  
Peng Xue ◽  
Yang Lü ◽  
Dongmei Li ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
In Situ Synthesis ◽  
Highly Efficient ◽  
Recyclable Catalysts
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