Fig. 5.
Schematic representation of A the design nanoscale sensor includes PET, gold lead, porous membrane, nanowires array, anti-S, Sav and virus particle. B Virus sensing mechanism (Rc: the equivalent capacitance of surface binding antibody; Rg: the equivalent resistance of surface binding antigen; Rb: the equivalent resistance of surface binding antibody; Cg: the equivalent capacitance of surface binding antigen; Rw: the equivalent resistance of nanowires). C The images of the constituted intelligent face mask. D The setup of the breath simulation experiment. Reproduced with permission from [90]