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Investigations of 'quantum dots' for looking deeply into body tissues are rapidly evolving, but more work is required to ensure they are safe, according to a review published in the journal Science and Technology of Advanced Materials.
Quantum dots are tiny, nanometer-sized crystals that can be made from a variety of chemical elements and that can emit light in different colors according to their size. Research on their use for looking into the body and 'seeing' tissues, a variety of techniques collectively referred to as biological imaging, has been rapidly evolving since the 1990s.
Quantum - Dots - Light - Waves - Researchers
Quantum dots that absorb and emit near-infrared light waves are allowing researchers to look deeper into tissues than ever before. This is because infrared light scatters less in the human body than other wavelengths, providing clearer images than conventional fluorescent imaging techniques.
Researchers at Japan's National Institute for Materials Science reviewed the latest studies on near-infrared quantum dots. Studies have shown that they can be used for whole body imaging of animals,...
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