Detection of HIV-1 antigen based on magnetic tunnel junction sensors
Li Li1, 2, Mak Kai-Yu1, Zhou Yan1, ‡
       

(a) Schematic drawing of the MTJ array sensor, consisting of 76 tunneling junctions indicated by ellipses. (b) MR loop of the MTJ array sensor with 10 Oe of hard-axis bias field along the hard-axis.