Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response

<table>Tunability of the extinction cross section as a function of nanoshells core/shell ratios. As in the case of nanospheres, the extinction cross section shows a behavior close to be linear with core/shell ratio increments (gold shell = 20 nm).</table>

Advances in Optical Technologies

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Figure 4

Figure 4: Nanoscale Biomolecular Detection Limit for Gold Nanoparticles Based on Near-Infrared Response 