Preferentially linear connection of gold nanoparticles in derivatization with phosphorothioate oligonucleotides

  • Kim J
  • Lee D
  • Kim S
 et al. 
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A gold nanosphere in water is considered to attain special stability in derivatization like an artificial atom when the octet rule is satisfied by forming four covalent bonds with two 5′-phosphorothioate-modified oligonucleotide molecules. Owing to this, the hybridization of two mutually complementary gold-bound oligonucleotides makes gold nanospheres preferentially connected linearly by duplexes to produce strands like linear artificial molecules. We have then fixated the linear strands of DNA-linked gold nanospheres by reducing Ag+ion clusters immobilized around duplexes to show the absorption spectrum of silver-coated artificial-molecular nanorods. © 2008 Elsevier Inc. All rights reserved.

Author-supplied keywords

  • Artificial atoms
  • Artificial molecules
  • DNA
  • Nanoconjunction
  • Octet rule
  • Self-assembly
  • Silver

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  • Jong Yeob Kim

  • Dong Hun Lee

  • Seol Ji Kim

  • Du Jeon Jang

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