Separation of nanoparticles by gel electrophoresis according to size and shape.

  title={Separation of nanoparticles by gel electrophoresis according to size and shape.},
  author={Matthias Hanauer and Sebastien Pierrat and Inga Zins and Alexander Lotz and Carsten S{\"o}nnichsen},
  journal={Nano letters},
  volume={7 9},
We demonstrate the separation of gold and silver nanoparticles according to their size and shape by agarose gel electrophoresis after coating them with a charged polymer layer. The separation is monitored optically using the size- and shape-dependent plasmon resonance of noble metal particles and confirmed by transmission electron microscopy (TEM). Electrophoretic mobilities are quantitatively explained by a model based on the Henry formula, providing a theoretical framework for predicting gel… CONTINUE READING
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