Skip to main content
. Author manuscript; available in PMC: 2017 May 17.
Published in final edited form as: ACS Sens. 2016 Mar 8;1(5):488–492. doi: 10.1021/acssensors.6b00003

Figure 1.

Figure 1

Bode plots for sensor responses to different concentrations of MS2 bacteriophage. A. The sensor is based on 73 nm pores. B. The sensor is based on 97 nm pores. The arrows in both cases indicate the corresponding frequencies of optimal detection and the insets illustrate that the pores with diameter, D < 3d, are less efficient due to compromised accessibility of the walls to viruses with diameter d (A), while larger pores are not affected (B). The inset in B illustrates the effective electrical circuit diagram, where Rsol is the resistance of solution above the membrane, Rpore and Cpore are the resistance and capacitance of the pores in the membrane, and Rox and Cox are the resistance and capacitance of the oxide layer.