相关实验视频

Updated: Sep 11, 2025

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Author Spotlight: High-Quality Quantum Dot Nanobeads for Sensitive Fluorescent Lateral Flow Immunoassays

Published on: June 28, 2024

基于量子点标记的TetR的反向ELISA,用于快速检测四环素

Huaixiu Bi¹, Cheng Zhang¹, Chen Zhao¹

¹Military Medical Sciences Academy, Academy of Military Sciences, Tianjin, China.

Mikrochimica acta

|August 12, 2025

概括

一种新的测定方法使用量子点和TetR蛋白快速检测四环素 (TC). 这种方法可以快速,灵敏地在现场检测各种样本中的TC.

科学领域:

分析化学分析化学
生物技术是生物技术.
环境科学环境科学

背景情况:

过度使用环素 (TC) 需要快速和敏感的检测方法.
现有的检测方法可能缺乏速度,灵敏度或现场适用性.
开发新型检测方法对于监测TC残留物至关重要.

研究的目的:

开发一种新的反向ELISA试验,用于快速检测四环素 (TC).
为增强检测,将量子点 (QD) 与体转录因子 (TetR) 集成.
在各种样本矩阵中验证试验的性能.

主要方法:

开发一种QD-TetR结合测定方法,使用生物修饰的dSDNA固定在一个涂有斯特雷普塔维丁的板上.
使用一个反向ELISA格式,其中TC结合诱导QD-TetR结合物的解离.
在环境和食品样本中检测TC的定量和半定量检测.

主要成果:

在0.05-100μM的线性动态范围内在5分钟内实现了定量TC检测.
为TC建立了0.02μM的方法检测极限.
在海水,污水,牛奶和蜂蜜样本中显示出高回收率 (93.43%106.6%).
能够在0.5500μM的度范围内对TC进行现场的半定量检测.

结论:

开发的基于QD-TetR的反向ELISA可提供快速和灵敏的TC检测.
该测试显示了在环境和食品样本中监测TC残留物的强大潜力.
用商业ELISA套件进行验证证实了该测试的可靠性和适用性.

关键词:

艾洛斯特转录因子的转录因子量子点是一个量子点.这是一个反向ELISA测试.环素检测检测方式

更多相关视频

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology

Rapid Detection of Helicobacter pylori Virulence and Typing Using Quantum Dot Labeling Technology

Published on: June 13, 2025

Solubilization and Bio-conjugation of Quantum Dots and Bacterial Toxicity Assays by Growth Curve and Plate Count

Solubilization and Bio-conjugation of Quantum Dots and Bacterial Toxicity Assays by Growth Curve and Plate Count

Published on: July 11, 2012

相关概念视频

Enzyme-Linked Immunosorbent Assay

Enzyme-Linked Immunosorbent Assay

In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or...