一个信号极性转换的光电化学免疫传感器用于基于MgIn2S4敏感的CsPbBr3的神经元特异性酶检测
1Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, People's Republic of China.
Mikrochimica acta
|January 10, 2024
概括
一种新的光电化学免疫传感器被开发用于神经元特异性酶 (NSE) 检测. 这个传感器使用MgIn2S4装饰的CsPbBr3和信号极性转换策略来提高灵敏度.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 生物医学工程 生物医学工程
背景情况:
- 像CsPbBr3这样的无机化物矿为光电化学 (PEC) 传感器开发提供了出色的光学和电子性能.
- 提高矿的稳定性和PEC响应对于实际的传感器应用至关重要.
- 神经元特异性酶 (NSE) 是神经系统疾病和某些癌症的重要生物标志物.
研究的目的:
- 设计和开发一种高度敏感的PEC免疫传感器,用于检测神经元特异性酶 (NSE).
- 为了提高CsPbBr3的稳定性和光电化学性能,使用MgIn2S4的装饰.
- 实施信号极性转换策略,以提高检测灵敏度.
主要方法:
- 使用MgIn2S4装饰的CsPbBr3作为光活性材料制造PEC免疫传感器.
- 检测抗体 (Ab2) 与p型CuInS2结合为信号探针的固定.
- 使用由目标NSE分析物的存在触发的信号极性转换策略.
- 传感器性能的描述,包括线性检测范围和检测极限.
主要成果:
- MgIn2S4的装饰增强了CsPbBr3的稳定性和PEC反应.
- 开发的PEC免疫传感器表现出从0.0001到100 ng/mL的广泛线性检测范围.
- 为NSE实现了38 fg/mL的低检测极限.
- 信号极性转换策略有效地放大了检测信号.
结论:
- 拟议的PEC免疫传感器在NSE检测方面表现出色,这是由于MgIn2S4,CsPbBr3和信号转换策略的协同效应.
- 这项工作扩大了CsPbBr在分析化学中的应用,并为检测其他蛋白质生物标志物提供了一个强大的平台.
- 开发的传感器为潜在的临床诊断提供了灵敏和可靠的方法.
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