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Biological applications of electromagnetically active nanoparticles

that are decorated with gold nanoparticles in order to promote photocatalytic properties for pollutant degradation. They nicely show that coupling plasmonic properties of gold nanoparticles to semiconducting nanotubes allows reinforcing the inherent physical properties of the nanotubes through a plasmonic electron transfer from the noble metal to large band-gap semiconductors, in order to exploit a broader range of the electromagnetic spectrum for improved photocatalytic degradation. By performing the synergistic integration of the adsorptive and photocatalytic properties of hybrid nanocomposties, this article provides a representative example on how the detailed understanding and the coupling of photophysical properties of nanoscale objects can be manipulated to design and create nanocomposites with enhanced properties for advanced applications. There are other ways than relying on electron transfer properties to make use of the energy stored by nanoparticles following electromagnetic field absorption. In particular, converting absorption of electro magnetic waves into heat using nanoscale absorbers is a highly investigated approach for curing purposes. This approach aiming at creating local hyperthermia however needs a fine understanding regarding the dose of light needed to create locally controlled temperature elevations. Because the physics of heat transport at the nanoscale and in cellular environ ments does not always follow the same scaling laws than in macroscopic environments [2] there is high demand for designing new methodologies to precisely probe temperature elevations at the nanoscale. In their paper, Hemery et al [3]