Wang Tan, Jafar Nadhir N A, Al-Rihaymee Afrah Majeed Ahmed, Alhameedi Dheyaa Yahaia, Rasen Fadhil A, Hashim Furqan S, Hussein Talib Kh, Ramadan Montather F, Alasedi Kasim Kadhim, Suliman Muath, Alawadi Ahmed Hussien
Three Gorges University, College of Basie Medical Scienees, 443002, China.
Al-Zahraa Center for Medical and Pharmaceutical Research Sciences (ZCMRS), Al-Zahraa University for Women, Karbala, 56001, Iraq.
Heliyon. 2024 Jul 21;10(14):e34689. doi: 10.1016/j.heliyon.2024.e34689. eCollection 2024 Jul 30.
The current study presents the creation of a straightforward and sensitive sensor based on ZnO/CoO nanocomposite modified screen-printed electrode (ZnO/CoONC/SPE) for levodopa determination. At ZnO/CoONC/SPE, an oxidative peak for levodopa solution in pH 6.0 phosphate buffer solution (PBS) were seen that were both more resolved and more enhanced. Levodopa was measured using differential pulse voltammetry (DPV), which showed an excellent linear range (0.001-800.0 μM) and detection limit (0.81 nM). The presence of interference did not affect the electrochemical response of levodopa at ZnO/CoONC/SPE, demonstrating high selectivity. Levodopa in a real samples have been successfully detected using the manufactured sensor.
当前研究提出了一种基于氧化锌/氧化钴纳米复合材料修饰丝网印刷电极(ZnO/CoONC/SPE)的简单且灵敏的左旋多巴检测传感器。在ZnO/CoONC/SPE上,观察到在pH 6.0的磷酸盐缓冲溶液(PBS)中左旋多巴溶液的氧化峰,其分辨率更高且增强效果更明显。使用差分脉冲伏安法(DPV)测定左旋多巴,其显示出优异的线性范围(0.001 - 800.0 μM)和检测限(0.81 nM)。干扰物的存在不影响左旋多巴在ZnO/CoONC/SPE上的电化学响应,表明具有高选择性。使用所制备的传感器已成功检测出实际样品中的左旋多巴。