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Self-assembly of tryptophan-capped gold nanoparticles onto DNA network template

Sheikholeslami, Z ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1080/01932690802501824
  3. Publisher: 2009
  4. Abstract:
  5. In this study, a simple route to the formation of DNA-gold complex has been reported, using immobilized DNA as a template. The nanoporous gold films have been prepared by the electrostatic self assembly of gold nanoparticles capped with tryptophan. Tryptophan would improve surface properties of gold nanoparticles for strongly attaching to DNA. Fourier transform infrared spectroscopy confirmed that gold nanoparticles have been capped by tryptophan. Also measured zeta potential shows that there are positive charges on the surface of gold nanoparticles. Investigations by atomic force microscopy substantially confirm that tryptophan-capped gold nanoparticles can be bonded to DNA template electrostatically
  6. Keywords:
  7. AFM ; Self-assembly ; Tryptophan ; Amino acids ; Atomic force microscopy ; DNA ; Fourier transform infrared spectroscopy ; Fourier transforms ; Genes ; Gold ; Infrared spectroscopy ; Metallic films ; Nanoparticles ; Nucleic acids ; Organic acids ; Self assembly ; Spectroscopic analysis ; Surface properties ; Zeta potential ; AFM ; Atomic forces ; Dna networks ; DNA templates ; DNA-template ; Electrostatic self assemblies ; Fourier Transform Infrared ; Gold complexes ; Gold film ; Gold nano particles ; Nanoporous golds ; Positive charges ; Gold compounds
  8. Source: Journal of Dispersion Science and Technology ; Volume 30, Issue 2 , 2009 , Pages 254-258 ; 01932691 (ISSN)
  9. URL: https://www.tandfonline.com/doi/full/10.1080/01932690802501824