Younan Xia, Washington University in St. Louis (IMAGE)
Caption
The graduated color of the nanocages demonstrates how easy it is to tune their optical properties. As the walls of the nanocages become thinner, a suspension of cages shifts from red, to purple, to bright blue, to dark blue, to the wavelengths in the near-infrared. For the melanoma, the nanocages were tuned to near-infrared wavelengths and decorated with molecules that bind to proteins that are overexpressed on malignant melanocytes.
Credit
WUSTL photo
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