Plasmon-Enhanced Sensing: Current Status and Prospects

Figure 5

(a) Spectral response of the plasmonic sensors functionalized with different protein IgG concentrations ranging from 3.9 μg/mL to 1000 μg/mL. (b) Reflectance spectra of an absorber sensor designed for water as reference medium. (c) Absorption spectra of the plasmonic nanostructure under a low refractive index environment. (a), (b), (c) are adapted from [86–88], respectively. (a): Copyright 2014, Nature Publishing Group. (b): Copyright 2010, American Chemical Society. (c): Copyright 2014, American Institute of Physics.

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