Green Approach Using RuO2/GO Nanocomposite for Low Cost and Highly Sensitive pH Sensing

Rapid and inexpensive monitoring the real-time status of food products using pH sensors is critical for food quality and safety to determine if pathogens are present and growing. A promising material for pH sensors is ruthenium dioxide (RuO2) due to its chemical stability and excellent performance including: high sensitivity, low drift and hysteresis, and good selectivity. Furthermore, graphene oxide (GO) provides an electrode with large …