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Plasma-Assisted Synthesis of Surfactant-Free and D-Fructose-Coated Gold Nanoparticles for Multiple Applications.

Hafiz M YasinW AhmedN U RehmanAbdul MajdMohammad AlkhedherElSayed M Tag El Din
Published in: Materials (Basel, Switzerland) (2022)
The excellent optical properties of gold nanoparticles ( AuNPs ) make them promising for numerous applications. Herein, we present a facile synthesis of both surfactant-free (SF-AuNPs) and non-toxic D-fructose ( DF )-coated gold nanoparticles (DF-AuNPs) via the plasma-liquid interactions ( PLIs ) method. Moreover, we demonstrate that both SF-AuNPs and DF-AuNPs are potential candidates for trace detection via surface-enhanced Raman scattering (SERS) and catalytic degradation of toxic dyes. However, SF-AuNPs have superior SERS and catalytic performance compared to the DF-AuNPs due to their surfactant-free nature. Moreover, SF-AuNPs have also been shown to quench the fluorescence of analyte molecules, making their SERS-based trace detection more efficient. In particular, SERS enhancement of rhodamine 6G (R6G) and catalytic reduction of a toxic dye methylene blue (MB) have been explored.
Keyphrases
  • gold nanoparticles
  • reduced graphene oxide
  • label free
  • sensitive detection
  • heavy metals
  • ionic liquid
  • raman spectroscopy
  • climate change
  • real time pcr
  • aqueous solution