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.

由于人们对寻找成本效益高的电化学传感材料替代品的兴趣日益浓厚，碱金属和碱土金属氧化物引起了材料研究人员的关注。本文中，我们报道了在800°C时由深共晶溶剂（DES）介导的纯固态和镧掺杂钛酸镁陶瓷的轻松固态合成的新方法。La掺杂的陶瓷材料具有独特的六角形玄武岩样结构，在5-50μM的宽线性检测范围内，对多巴胺生物分子具有巨大的电催化活性。La掺杂的钛酸镁修饰的玻璃碳电极的检测极限达到了1.32μM。在加标的人血清中的％RSD值为2.04，回收率为97.95，可确保其具有广阔的发展前景，