Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China; Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
J Hazard Mater. 2021 Aug 15;416:126201. doi: 10.1016/j.jhazmat.2021.126201. Epub 2021 May 24.
In this study, lead(II) sulfide (PbS) nanocrystals were modified on nickel(II)oxide nanosheets (NiO NSs) via the chemical bath method. Afterwards, Au nanoparticles (NPs) were also modified successfully. A photoelectrochemical (PEC) self-powered platform for detecting sarcosine with high PEC activity was constructed. The capacity of NiO NSs to be loaded with other sensitizing materials was mainly attributed to its porous structure and large specific surface area. Under optimum conditions, the constructed PEC self-powered cathodic sensor for detecting sarcosine exhibited a linear range in 5.0 × 10-5.0 × 10 mol/L with a detection limit (LOD) of 1.7 × 10 mol/L. The biosensor demonstrated good reproducibility, acceptable stability and high specificity, thus confirming its potential application in the detection of other similar substances.
在这项研究中，通过化学浴法将硫化铅（PbS）纳米晶体修饰在氧化镍纳米片（NiO NSs）上。随后，成功地修饰了金纳米颗粒（Au NPs）。构建了一种具有高光电化学（PEC）活性的用于检测肌氨酸的自供电 PEC 平台。NiO NSs 能够负载其他敏化材料的能力主要归因于其多孔结构和大的比表面积。在最佳条件下，构建的用于检测肌氨酸的自供电阴极 PEC 传感器在 5.0×10-5.0×10 mol/L 的线性范围内具有检测限（LOD）为 1.7×10 mol/L。该生物传感器表现出良好的重现性、可接受的稳定性和高特异性，从而证实了其在检测其他类似物质中的潜在应用。
