Table 2: Resistivitya of different engineering and biological materials (Ωm).

MaterialTypeResistivity

Titanium pureConductor4.2–5.2 × 10−7 [18]
Titanium-6Al-4V alloyConductor1.7 × 10−8 [18]
Bisphenol-polymer/carbon Fiber CompositeSemiconductor5 [19]
Bone longitudinalSemiconductor46 [9]
Bone radialSemiconductor150 [9]
Physiologic salineSemiconductor0.72 [9]
Silicon pureSemiconductor3000 [26]
Silicon phosphorous DopedSemiconductor20–80 [27]
Lipid phosphate headgroup/water interfaceSemiconductor100 [28]
Carbon fibersConductor0.95–1.8 × 10−5 [18]
Thermoset bisphenyl polymerInsulator1010–1013 [18]
General metalsConductors~10−6–10−9 [18]
Pure quartz fiberInsulator1020 [29]

aResistivity = 1/conductivity.