Evaluation of the total antioxidant capacity of Anchusa italica retz using carbon fiber microelectrode modified by Au-Ag alloy urchin-like nanostructures.

Anchusa italica Retz, a plant rich in bioactive compounds, has garnered considerable attention for its antioxidant properties and associated health benefits. However, the traditional methods for assessing antioxidant capacity often suffer from limited sensitivity and operational complexity. To overcome these challenges, gold-silver alloy urchin-like nanostructures (AAA-UNs) were synthesized using an ascorbic acid reduction method and electrodeposited onto a carbon fiber microelectrode (CFME) to form a highly sensitive electrochemical sensor (AAA-UNs/CFME).