Authors: J.-M. Woo, S.H. Kim, Y.J. Park
Affilation: Seoul National University, Korea
Pages: 586 - 589
Keywords: electrical double layer, biosensor, sensitivity, step pulse
We have presented a numerical simulation for the affinity-based electrical biosensor system on the steady and transient state. Considering the screening length in the solutions, the solution with low ion concentration can be better measurement condition to get the high sensitivity. The transient electro-diffusion ionic flow caused by step-pulse input bias leads to the enhancement of the sensitivity. From these results, we can find a new sensing measurement scheme to achieve high sensitivity in the biosensor applications.