A Disposable Copper (II) Ion Biosensor Based on Self-Assembly of L-Cysteine on Gold Nanoparticle-Modified Screen-Printed Carbon Electrode
Figure 2
The current response of a screen-printed carbon electrode modified with L-cysteine and gold nanoparticles for the detection of Cu2+ in 50 mM acetate buffer solution (pH 6.5). (a) Before accumulation and (b) after accumulation of 10 ppm Cu2+ for 10 min.
