• Lamellar multilayer hexadecylaniline-modified gold nanoparticle films deposited by the Langmuir-Blodgett technique

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      https://www.ias.ac.in/article/fulltext/jcsc/115/03/0185-0193

    • Keywords

       

      Lamellar multilayer films; hexadecylaniline-modified gold nanoparticle films; Langmuir-Blodgett technique

    • Abstract

       

      Organization of hexadecylaniline (HDA)-modified colloidal gold particles at the air-water interface and the formation thereafter of lamellar, multilayer films of gold nanoparticles by the Langmuir-Blodgett technique is described in this paper. Formation of HDA-capped gold nanoparticles is accomplished by a simple biphasic mixture experiment wherein the molecule hexadecylaniline present in the organic phase leads to electrostatic complexation and reduction of aqueous chloroaurate ions, capping of the gold nanoparticles thus formed and phase transfer of the now hydrophobic particles into the organic phase. Organization of gold nanoparticles at the air-water interface is followed by surface pressure—area isotherm measurements while the formation of multilayer films of the nanoparticles by the Langmuir-Blodgett technique is monitored by quartz crystal microgravimetry, UV-Vis spectroscopy, Fourier transform infrared spectroscopy and transmission electron microscopy.

    • Author Affiliations

       

      Anita Swami1 Ashavani Kumar1 Murali Sastry1

      1. Materials Chemistry Division, National Chemical Laboratory, Pune - 411 008, India
    • Dates

       
  • Journal of Chemical Sciences | News

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