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 sensing materials, 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 state synthesis of pure and lanthanum doped magnesium titanate ceramics at 800 °C. The unique hexagonal basalt-like structure achieved for the La-doped ceramic material showed tremendous electrocatalytic activity towards dopamine biomolecules over a wide linear detection range of 5–50 μM. A remarkable limit 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 promising future as a potential, cost effective and ecofriendly electrode modifier in portable dopamine sensors for point of care human serum analysis. •Choline chloride: Urea (1:2) DES mixture assisted solid-state synthesis.•LaxMg1-xTiO3 (x = 0 and 0.5) ceramics were synthesized and applied as electrode modifiers.•Unique hexagonal basalt-like morphology was obtained for La-doped MTO ceramic.•The La-doped MTO showcased excellent sensing ability towards dopamine.