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Related Experiment Video

Updated: Feb 28, 2026

Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
11:02

Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica

Published on: July 9, 2015

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SERS-active metal-organic frameworks with embedded gold nanoparticles.

Xiaolin Cao1, Sihui Hong, Zejun Jiang

  • 1Key Laboratory of Agri-food Safety and Quality, Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Ministry of Agriculture of China, Beijing, 100081, P.R. China. w_jing2001@126.com 0891syx@163.com.

The Analyst
|June 15, 2017
PubMed
Summary
This summary is machine-generated.

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Metal-organic frameworks (MOFs) embedded with gold nanoparticles (AuNPs) demonstrate enhanced surface-enhanced Raman scattering (SERS) for sensitive pesticide detection. These novel composites offer high stability and reproducibility for SERS applications.

Area of Science:

  • Nanomaterials Science
  • Analytical Chemistry
  • Chemical Engineering

Background:

  • Surface-enhanced Raman scattering (SERS) is crucial for target detection, relying on target-nanoparticle interactions.
  • Metal-organic frameworks (MOFs) offer high adsorption capabilities, beneficial for analyte preconcentration.

Purpose of the Study:

  • To fabricate and evaluate MOF-embedded gold nanoparticle (AuNP) composites for enhanced SERS detection.
  • To investigate the impact of synthesis parameters on SERS activity, stability, and reproducibility.

Main Methods:

  • Large-scale synthesis of Uio-66 and Uio-67 MOFs via a water bath method.
  • Fabrication of AuNP/MOF composites using an impregnation strategy.
  • SERS analysis of acetamiprid using synthesized composites.

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Related Experiment Videos

Last Updated: Feb 28, 2026

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Main Results:

  • AuNP/MOF composites (AuNPs/MOF-199, AuNPs/Uio-66, AuNPs/Uio-67) exhibited excellent SERS activity due to LSPR and adsorption properties.
  • SERS intensity remained stable for over 40 days under ambient conditions.
  • Achieved limits of detection for acetamiprid as low as 0.009 μM.

Conclusions:

  • Novel AuNP/MOF composites provide a sensitive, stable, and reproducible platform for SERS-based pesticide detection.
  • The study highlights a new route for developing advanced SERS substrates.