Quantum dots (QDs) are a novel class of inorganic fluorophore which are gaining widespread recognition as a result of their exceptional photophysical properties. They are rapidly being applied to existing and emerging technologies, and could have an important role in many areas. They are excellent for bioimaging because they are semiconductor nanocrystals that have broad excitation spectra, narrow emission spectra, tunable emission peaks, long fluorescence lifetimes, negligible photobleaching, and ability to be conjugated to proteins. (5.1)

Quantum Dots are currently in the process of being routinely used in cellular targeting, sensing, and imaging. Furthermore, they are highly used towards locating specific biological mechanisms in immunoassays, live-cell imaging, as well as in a variety of other fluorescencent-based detection. Quantom Dots also assist scientists in determing issues in cells and tissues, as a way of treating diseases. This is beneficial because it will allow scientists to keep track of where and how a cell is moving. Thus, it wil lead to greater explorations in nanomedince.