适体
荧光
选择性
线性范围
吸附
重复性
双酚A
材料科学
发光
纳米技术
检出限
化学
胶体金
纳米颗粒
色谱法
有机化学
光电子学
催化作用
物理
量子力学
遗传学
生物
环氧树脂
作者
Yukun Yang,Xiaoxing Zeng,Yu Tian,Li Wang,Xu Jing,Ligang Yu,Baoqing Bai,Jinhua Zhang,Shu Qin
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-04-23
卷期号:422: 136167-136167
被引量:13
标识
DOI:10.1016/j.foodchem.2023.136167
摘要
A universal design of turn-on fluorescent aptasensor based on aptamer functionalized gold nanoparticles (AuNPs) and luminescent metal-organic frameworks (LMOFs) complex (AuNPs-Apt/NH2-MIL-125(Ti)) was realized for bisphenol A (BPA) detection. LMOF NH2-MIL-125(Ti) was prepared using facial hydrothermal method. BPA aptamer functionalized AuNPs were prepared and adsorbed on the surface of NH2-MIL-125(Ti) to obtain platform of the fluorescent aptasensor. The fabrication process, sensing performance and applicability of the proposed aptasensor were characterized and investigated carefully. Linear detection range of the constructed aptasensor was from 1 × 10-9 mol L-1 to 1 × 10-4 mol L-1 with good selectivity, repeatability, stability and reproducibility under optimal experimental conditions. Meanwhile, the fluorescent aptasensor was successfully utilized for BPA detection in real samples with the recoveries of 95.80%-103.12%. The proposed aptasensor based on AuNPs-Apt/NH2-MIL-125(Ti) holds significant potential for BPA detection in environmental and food samples, promoting the construction and application of LMOFs-based aptasensor.
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