Multiplex Immunoassays of Plant Viruses Based on Functionalized Upconversion Nanoparticles Coupled with Immunomagnetic Separation

<table>FT-IR spectra of Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> MNPs and NH<sub>2</sub>-Fe<sub>3</sub>O<sub>4</sub>/SiO<sub>2</sub> MNPs.</table>

Journal of Nanomaterials

Figure 4: Multiplex Immunoassays of Plant Viruses Based on Functionalized Upconversion Nanoparticles Coupled with Immunomagnetic Separation 