Figure 17.

Magnetostrictive sensor for classical swine fever virus (CSFV) detection. a) SEM image of the Au‐coated sensor surface; b) SEM image of the biosensor surface after CSFV E2 immobilization; and c) EDS spectrum of the biosensor surface before and after the CSFV E2 immobilization. After CSFV E2 immobilization, it is clear that the Au content is reduced while the carbon and oxygen accumulations are dramatically increased. E2 contains large amounts of carbon and oxygen due to the nature of the envelope glycoprotein. d) Frequency shift as a function of time for phosphate buffered saline (PBS) and different anti‐CSFV E2 antibody concentrations. a–c) Reproduced with permission.^{[ 125 ]} Copyright 2017, Springer Nature. d) Reproduced with permission.^{[ 124 ]} Copyright 2016, Elsevier.