Hexagonal basalt-like ceramics LaxMg1-xTiO3 (x = 0 and 0.5) contrived via deep eutectic solvent for selective electrochemical detection of dopamine

Attributed to the increased interest in search of cost effective alternatives for electrochemical sensingmaterials, alkali and alkaline-earth metal oxides have seized the attention of material researchers.Herein we report the novel approach of deep eutectic solvent (DES) mediated facile solid statesynthesis of pure and lanthanum doped magnesium
titanate ceramics at 800 °C. The unique hexagonalbasalt-like structure achieved for the La-doped ceramic material showed tremendous electrocatalyticactivity towards dopamine biomolecules over a wide linear detection range of 5–50 μM. A remarkablelimit of detection, 1.32 μM was attained for La-doped magnesium titanate modified glassy carbon electrode. %RSD value of 2.04 and recovery rate of 97.95 in spiked human serum ensures its promisingfuture as a potential, cost effective and ecofriendly electrode modifier in portable dopamine sensors forpoint of care human serum analysis.