Quantum dot encapsulation in viral capsids

Incorporation of CdSe/ZnS semiconductor quantum dots ( QDs) into viral particles provides a new paradigm for the design of intracellular microscopic probes and vectors. Several strategies for the incorporation of QDs into viral capsids were explored; those functionalized with poly( ethylene glycol) ( PEG) can be self-assembled into viral particles with minimal release of photoreaction products and enhanced stability against prolonged irradiation.