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. 2017 Sep 30;18(10):2078. doi: 10.3390/ijms18102078

Figure 3.

Figure 3

Schematic representation of the optical approach based on surface plasmon resonance (SPR). This system is performed with a light source and thin metallic material (e.g., Au). An electromagnetic light wave can be coupled with a surface plasmon wave and change the angle shift of the reflected light, which is the result of the binding between the antibody and pathogen. This detection tool can be utilized for the real-time monitoring of sample pathogens.