Current-Volt Biosensing “Cystatin C” on Carbon Nanowired Interdigitated Electrode Surface: A Clinical Marker Analysis for Bulged Aorta

Figure 4

Detection of different concentrations of cystatin C by the immobilized papain surface. (a) The Cystatin C and papain interaction was analyzed by voltage vs current responses. The clear increment of current responses confirms the interaction of Cystatin C with the immobilized papain. (b) The current level of Cystatin C and papain interaction increases the Cystatin C concentration, and the response also increases gradually.

(a)

(b)