Synthesis and characterization of ring shaped spermine mediated nanogold assemblies at the air water interface

Divya Sachdev, Shweta Gupta, Veeresh Kumar, Sandeep Singh, Renu Pasricha

Research output: Contribution to journalArticle

Abstract

Surface tension mediated U-shaped interlinked diammine network (spermine) assembled at the air-water interface, when interacted with aqueous functionalized gold nanoparticles (AuNPs), form ring like nanogold structures. These electrostatic force guided self-assembies of the ligand diammine with gold provides a facile route for control on the nanostructure formation while portraying double linkage ability of the diammine (here spermine). Pressure-area isotherm of controlled multilayer formation of spermine linked gold NPs (spermine-AuNPs) were studied and characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy and Transmission electron microscopy (TEM). The TEM micrographs clearly elucidate the formation of ring like networks of gold NPs under the influence of spermine. Furthermore we believe that these spermine-AuNPs will surely have supportive role as a bio-diagnostic material for ultra-sensitive biological detection and pave way for a novel route for assembly fabrication.

Original languageEnglish (US)
Pages (from-to)449-455
Number of pages7
JournalAdvanced Materials Letters
Volume7
Issue number6
DOIs
StatePublished - Jun 1 2016

Keywords

  • Air-water interface
  • Gold nanoparticle
  • Interlinked networks
  • Pressure-area isotherm
  • Spermine

ASJC Scopus subject areas

  • Materials Science(all)

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