PRRSV recombinant antigen A1 inhibits the expression of CD163 on the cell surface by inducing the polarization of M1 macrophage subset, which can further effectively reduce virus invasionreduce infection. A1 can regulate the endogenous genes of alveolar macrophages to activate Th1-type immune responseenhance cellular immunity. Therefore, this technical invention will be beneficial to screen the new generation of PSSRV candidate structural vaccines.

The smart graphene (Gr) sensor developed by this team is self-assembly arranged through Gr. No traditional polarization process is further required due to use of high conductivity of Gr. Further, because of the conductivity of the Gr sensor itself, no additional electrodes are required for collecting the mechanical-electric signals.The process of manufacturing the piezoelectric film can be simplifiedthe cost of process reduced. Moreover, the Gr sensor can be directly coated on materials with different curved shapes and, the sensitivity of the direct-coated sensor can be greatly enhanced.