Stability Investigation of Electrochemical Laser Scribed rGO Sensors for Nitrite Detection

Herein, we propose a new procedure to fabricate electrochemical laser scribed reduced graphene oxide rGO sensors with optimized methodology in order to enhance the stability of the obtained electrodes by treating a PET flexible substrate with plasma treatment then immersing it in Poly (di-allyldimethylammonium chloride) polymer solution. Several testes are made to prove the enhancement such as electrochemical testes by running cyclic voltammetry. The final electrodes showed good capacity to nitrite (NO2-) detection with an acceptable long-term stability.