协同的光诱导电子转移和聚集诱导猝灭机制用于高灵敏度检测银离子和卡托普利。
Synergism of Photo-Induced Electron Transfer and Aggregation-Induced Quenching Mechanisms for Highly Sensitive Detection of Silver Ion and Captopril.
机构信息
School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng 224051, China.
School of Medical Laboratory, Weifang Medical University, Weifang 261053, China.
出版信息
Molecules. 2023 Apr 22;28(9):3650. doi: 10.3390/molecules28093650.
Carbon-based nanoprobes, with excellent physicochemical performance and biocompatibility, are a kind of ideal nanomaterial for biosensing. Herein, we designed and prepared novel oxygen-doped nitrogen-enrichment carbon nanoribbons (ONCNs) with an excellent optical performance and uniform morphology, which could be used as a dual-mode fluorescence probe for the detection of Ag ion and captopril (Ctl) based on the synergism of photo-induced electron transfer and aggregation-induced quenching mechanisms. By recording the changes in fluorescent intensities of ONCNs, the Ag ion and Ctl concentrations can be easily tested in real samples. The results displayed that two good linear relationships existed between the change in fluorescent intensity of ONCNs and the concentrations of Ag ion and Ctl in the ranges of 3 μM to 30 μM and 1 μM to 30 μM, with the detection limit of 0.78 µM and 74 nM, respectively. The proposed sensing platform has also been successfully applied for the Ctl analysis in commercial tablet samples based on its high selectivity, proving its value in practical applications.
基于碳的纳米探针具有优异的物理化学性能和生物相容性，是一种用于生物传感的理想纳米材料。在此，我们设计并制备了具有优异光学性能和均匀形态的新型富氮掺杂碳纳米带（ONCNs），可作为一种双模式荧光探针，基于光诱导电子转移和聚集诱导猝灭机制的协同作用，用于检测 Ag 离子和卡托普利（Ctl）。通过记录 ONCNs 荧光强度的变化，可以轻松测试实际样品中 Ag 离子和 Ctl 的浓度。结果表明，ONCNs 荧光强度的变化与 Ag 离子和 Ctl 浓度在 3 μM 至 30 μM 和 1 μM 至 30 μM 的范围内存在两种良好的线性关系，检测限分别为 0.78 µM 和 74 nM。该传感平台还基于其高选择性成功应用于商业片剂样品中的 Ctl 分析，证明了其在实际应用中的价值。
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