Abstract:This paper describes a new sensing technique for detecting orchid viruses by measuring the Brownian diffusion of immunobeads in liquid samples. Both the capsid proteins and virus particles of Odontoglossum ringspot virus (ORSV) are detectable targets by using this technique. When the targets bind to immunobeads, the Brownian diffusion of the beads decreases. Thereafter, the kinetic model of the antibody-antigen interaction in a free liquid space can be established. This model is used to calculate the associati… Show more
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