Batool Rabia, Riaz Sara, Bano Shehar, Hayat Akhtar, Nazir Muhammad Shahid, Nasir Muhammad, Marty Jean Louis, Nawaz Mian Hasnain
Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
Department of Chemistry, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan.
Mikrochim Acta. 2023 Apr 5;190(5):172. doi: 10.1007/s00604-023-05707-0.
A flexible CeO nanostructured polydopamine-modified carbon cloth (CeO/PDA/CC) interface was fabricated via electrodeposition for ethanol detection. The fabrication method involved two consecutive electrochemical steps in which dopamine was firstly electrodeposited on carbon fibers, followed by the electrochemical growth of CeO nanoparticles. The CeO/PDA-based electroactive interface exerts an impressive electrochemical performance on the flexible sensor due to strong synergistic effect of the PDA functionalization with more active sites. Moreover, catalytic activity of CeO nanostructures anchored on highly conductive CC incorporate superior electrocatalytic performance of the fabricated interface. The designed electrochemical sensor showed a wide response to ethanol in the linear range 1 to 25 mM with a detection limit of 0.22 mM. The CeO/PDA/CC flexible sensor showed good anti-interference ability and excellent repeatability and reproducibility (RSD = 1.67%). The fabricated interface performed well in saliva samples with satisfactory recoveries, corroborating the viability of CeO/PDA/CC integrated interface for practical implementation.
通过电沉积制备了一种用于乙醇检测的柔性CeO纳米结构聚多巴胺修饰碳布（CeO/PDA/CC）界面。制备方法包括两个连续的电化学步骤，首先将多巴胺电沉积在碳纤维上，然后进行CeO纳米颗粒的电化学生长。由于PDA功能化具有更多活性位点的强协同效应，基于CeO/PDA的电活性界面在柔性传感器上表现出令人印象深刻的电化学性能。此外，锚定在高导电性CC上的CeO纳米结构的催化活性结合了所制备界面的优异电催化性能。所设计的电化学传感器在1至25 mM的线性范围内对乙醇表现出广泛的响应，检测限为0.22 mM。CeO/PDA/CC柔性传感器表现出良好的抗干扰能力以及出色的重复性和再现性（相对标准偏差RSD = 1.67%）。所制备的界面在唾液样本中表现良好，回收率令人满意，证实了CeO/PDA/CC集成界面在实际应用中的可行性。
