The unique properties of quantum dots allow them to be optimized for voltage sensing and for light-controlled electrical activation of cells.Dr. Elena Molokanova, Joseph A. Bartel, Dr. Weiwen Zhao, Dr. Imad Naasani, Dr. Michael J. Ignatius, Dr. Joseph A. Treadway, Dr. Alex Savtchenko, Invitrogen Corp.Quantum dots are transforming life sciences imaging because of their extraordinary photostability, brightness, broad excitation, narrow emission, long fluorescence lifetimes and multiplexing capability. The nanometer-scale inorganic crystals contain a few hundred to a few thousand atoms of a semiconductor material, and their behavior is governed by the laws of quantum physics. Quantum dots are not quite a molecule, although they have discrete electronic energy levels, and they are not a bulk semiconductor, either, although they demonstrate spin-orbit coupling and have large dielectric...Read full articleRelated content from Photonics MediaArticlesLEDs and Multi-Bandpass Filters Work in Tandem to Transform Fluorescence InstrumentationFluorescence stands as a cornerstone technology in the realm of bioanalysis. 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