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The use of quantum dots as DNA nanosensors promises to significantly enhance the sensitivity of fluorescence-based DNA detection for medical diagnosis and biomolecular investigations.
The complexity of the size, shape and composition of nanocrystals is evolving. Equipping them with a single gold tip that can serve as a preferential anchoring point for molecular linkers holds promise for new strategies in self-assembly.
Once upon a time it was a surrogate for diamond. Now old SrTiO3 shines with its own (blue) light, as a radiative process from oxygen vacancies is discovered.