Reduction of tetrachloroaurate(Iii) ions with bioligands: Role of the thiol and amine functional groups on the structure and optical features of gold nanohybrid systems

Ditta Ungor, Imre Dékány, Edit Csapó

Research output: Contribution to journalReview article

3 Citations (Scopus)


In this review, the presentation of the synthetic routes of plasmonic gold nanoparticles (Au NPs), fluorescent gold nanoclusters (Au NCs), as well as self-assembled Au-containing thiolated coordination polymers (Au CPs) was highlighted. We exclusively emphasize the gold products that are synthesized by the spontaneous interaction of tetrachloroaurate(III) ions (AuCl4¯) with bioligands using amine and thiolate derivatives, including mainly amino acids. The dominant role of the nature of the applied reducing molecules as well as the experimental conditions (concentration of the precursor metal ion, molar ratio of the AuCl4¯ ions and biomolecules; pH, temperature, etc.) of the syntheses on the size and structure-dependent optical properties of these gold nanohybrid materials have been summarized. While using the same reducing and stabilizing biomolecules, the main differences on the preparation conditions of Au NPs, Au NCs, and Au CPs have been interpreted and the reducing capabilities of various amino acids and thiolates have been compared. Moreover, various fabrication routes of thiol-stabilized plasmonic Au NPs, as well as fluorescent Au NCs and self-assembled Au CPs have been presented via the formation of –(Au(I)-SR)n– periodic structures as intermediates.

Original languageEnglish
Article number1229
Issue number9
Publication statusPublished - Sep 2019



  • Amino acids
  • Au(I)-thiolate
  • Coordination polymer structure
  • Fluorescence
  • Gold nanoclusters
  • Gold nanohybrid materials
  • Gold nanoparticles
  • Template-assisted synthesis

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)

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