Theory of melting and the optical properties of gold/DNA nanocomposites

  title={Theory of melting and the optical properties of gold/DNA nanocomposites},
  author={Sung Yong Park and David G. Stroud},
  journal={Physical Review B},
We describe a simple model for the melting and optical properties of a DNA/gold nanoparticle aggregate. The optical properties at fixed wavelength change dramatically at the melting transition, which is found to be higher and narrower in temperature for larger particles, and much sharper than that of an isolated DNA link. All these features are in agreement with available experiments. The aggregate is modeled as a cluster of gold nanoparticles on a periodic lattice connected by DNA bonds, and… Expand

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