Studying cells 2: Microscopy

Fluorescence microscopy

Images: Left: © 2002, J. Gough, University of Manchester. Right: www.molecular probes.com

Quantum Dots

  • Nanoparticles of cadmium selenide
  • Excited to fluoresce by a broad spectrum of blue light
  • Emitted light colour depends on diameter of particle
  • Fade only very slowly with time

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