Radiation Brightening from Virus-Like Particles.

  title={Radiation Brightening from Virus-Like Particles.},
  author={Irina B. Tsvetkova and Arathi Anil Sushma and Joseph C.-Y. Wang and William L. Schaich and Bogdan Dragnea},
  journal={ACS nano},
Concentration quenching is a well-known challenge in many fluorescence imaging applications. Here we show that the optical emission from hundreds of chromophores confined onto the surface of a virus particle 28 nm diameter can be recovered under pulsed irradiation. We have found that, as one increases the number of chromophores tightly-bound to the virus surface, fluorescence quenching ensues at first, but when the number of chromophores per particle is nearing the maximum number of surface… 
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