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Related Experiment Video

Updated: Sep 18, 2025

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In Situ Synthesis of Copper Nanoparticles on Biocarbon Sheets for Surface-Enhanced Raman Scattering.

Jianqiang Wei1, Zelong Zhou1, Junchao Qian1,2

  • 1Jiangsu Key Laboratory for Environment Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China.

Nanomaterials (Basel, Switzerland)
|June 25, 2025
PubMed
Summary

A novel copper nanoparticle and porous biocarbon substrate enhances Surface-Enhanced Raman Spectroscopy (SERS) detection of antibiotics. Its unique structure efficiently traps molecules and generates hotspots for increased signal sensitivity.

Keywords:
antibiotics detectionbiocarbonbiotemplatecopper nanoparticlesurface-enhanced Raman spectroscopy

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Area of Science:

  • Materials Science
  • Analytical Chemistry
  • Nanotechnology

Background:

  • Surface-Enhanced Raman Spectroscopy (SERS) requires substrates with high sensitivity for detecting trace analytes.
  • Porous carbon materials offer excellent adsorption properties for trapping molecules.
  • Metal nanoparticles can create localized surface plasmon resonance, enhancing Raman signals.

Purpose of the Study:

  • To design and synthesize a novel SERS substrate using copper nanoparticles and a porous biocarbon material.
  • To evaluate the substrate's efficiency in detecting trace antibiotics.
  • To investigate the structural features contributing to the enhanced SERS performance.

Main Methods:

  • A simple reduction method was employed to synthesize copper nanoparticles on a porous biocarbon substrate.
  • The substrate's morphology and composition were characterized.
  • The substrate's SERS performance was tested using three trace antibiotics as analytes.

Main Results:

  • The copper nanoparticle@porous biocarbon substrate demonstrated very high Raman enhancement efficiency.
  • The porous biocarbon facilitated rapid trapping of target antibiotic molecules.
  • Embedded copper nanoparticles generated numerous plasmonic hotspots, significantly increasing Raman signal intensity.

Conclusions:

  • The designed substrate is highly effective for SERS applications due to its synergistic properties.
  • This SERS substrate shows significant potential for detecting trace antibiotics in food safety, medicine, and water pollution monitoring.