Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing 210037, China.
Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266235, China.
Int J Biol Macromol. 2022 Aug 1;214:414-425. doi: 10.1016/j.ijbiomac.2022.06.089. Epub 2022 Jun 21.
Herein, a biomass-derived compound Z1 is synthesized via 'one pot' method for detection Pb using fluorescence and visual dual-mode in aqueous solution. Z1 shows good response to Pb with a limit of detection (LOD) of 13.4 nM. Importantly, the coordination mode of Z1 with Pb is further evaluated by UV-vis and NMR spectroscopy and a 1:1 stoichiometry is identified. Furthermore, Z1 can be applied to detection Pb in practical samples with satisfactory recoveries in range of 96.0 %-112.0 % in real samples. Besides, Z1 is added into polylactic acid (PLA) solution and made as portable fluorescence nanofiber membrane for Pb detection. Further, Z1 responds to Pb with high selectivity and sensitivity and has been applied for tracking Pb changes in soil samples, zebrafish, and plant tissues. These results indicated that Z1 had great application potential in accurate detection Pb.
本文通过“一锅煮”法合成了一种生物质衍生化合物 Z1，可在水溶液中通过荧光和视觉双重模式检测 Pb。Z1 对 Pb 具有良好的响应，检测限（LOD）低至 13.4 nM。重要的是，通过紫外可见光谱和核磁共振光谱进一步评估了 Z1 与 Pb 的配位模式，并确定了 1:1 的化学计量比。此外，Z1 可用于实际样品中 Pb 的检测，实际样品中的回收率在 96.0%-112.0%范围内，结果令人满意。此外，Z1 被添加到聚乳酸（PLA）溶液中，并制成便携式荧光纳米纤维膜用于 Pb 检测。此外，Z1 对 Pb 具有高选择性和灵敏度的响应，已被应用于跟踪土壤样品、斑马鱼和植物组织中 Pb 的变化。这些结果表明，Z1 在准确检测 Pb 方面具有巨大的应用潜力。
