期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 1, 页码 383-389出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c21528
关键词
plasmon-enhanced electrochemiluminescence; metal-organic framework; bimetallic nanorods; aptasensor; lincomycin
资金
- National Natural Science Foundation of China [22004032]
- Hunan Provincial Natural Science Foundation of China [2021JJ20020]
In this study, a high-performance ECL platform was constructed using plasmonic bimetal nanostructures, which can be employed to amplify electrochemiluminescence (ECL) signals. The designed ECL aptasensor exhibited highly sensitive detection for lincomycin (Lin).
Plasmonic bimetal nanostructures can be employed to amplify electrochemiluminescence (ECL) signals. In this work, a high-performance ECL platform was constructed using a europium metal-organic framework (MOF) as a luminophore and Au-Pt bimetallic nanorods (NRs) as a plasma source. Due to the SPR effect of Au-Pt NRs, the aptasensor exhibits 2.6-fold ECL intensity compared to that of pure polyaniline (PANT)-decorated perylene tetracarboxylic dianhydride (PTCA)/Eu MOF. Moreover, decoration with PTP greatly enhances the conductivity and stability of Eu MOF, resulting in sizeable plasmon-enhanced electrochemical luminescence. The as-designed plasmon-enhanced ECL aptasensor displayed highly sensitive detection for lincomycin (Lin). The as- proposed aptasensor could quantify Lin from 0.1 mg/mL to 0.1 ng/mL with a limit of detection (LOD) of 0.026 ng/mL.
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