scholarly journals Adsorbable and self-supported 3D AgNPs/G@Ni foam as cut-and-paste highly-sensitive SERS substrates for rapid in situ detection of residuum

2017 ◽  
Vol 25 (14) ◽  
pp. 16437 ◽  
Author(s):  
Yuanyuan Xu ◽  
Cheng Yang ◽  
Minghong Wang ◽  
Xiaoxiao Pan ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Ni Foam ◽  
Sers Substrates ◽  
Highly Sensitive ◽  
In Situ Detection

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.

scholarly journals Fluorescence-enhanced microfluidic sensor for highly sensitive in-situ detection of copper ions in lubricating oil

2020 ◽  
Vol 191 ◽  
pp. 108693 ◽  
Author(s):  
Yuefeng Gao ◽  
Xinxiang Pan ◽  
Sai Xu ◽  
Zhijian Liu ◽  
Junsheng Wang ◽  
...  
Keyword(s):  
Copper Ions ◽  
Lubricating Oil ◽  
Highly Sensitive ◽  
In Situ Detection

High sensitivity calixarene SERS substrates for the continuous in-situ detection of PAHs in seawater

2011 ◽  
Author(s):  
Yong-Hyok Kwon ◽  
Anna Kolomijeca ◽  
Kay Sowoidnich ◽  
Heinz-Detlef Kronfeldt
Keyword(s):  
High Sensitivity ◽  
Sers Substrates ◽  
In Situ Detection
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