基于TPE的阴离子AIEgen具有很大的火柴转移,可以检测血液抗凝固剂肝素,具有高选择性
Sandhya Vilas Yadav1,2, Sandip Kumar Deb3, Partha Sarathi Addy3
1Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai, 400085, India.
概括
一个新的基于硫的探针 (TPET) 使用聚合诱导排放 (AIE) 来检测敏感的肝素 (Hp). 这种光"启动"方法在生物样本中提供了可靠的检测,也可以检测氨酸.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 生物化学 生物化学
背景情况:
- 氨酸 (Hp) 是一种具有复杂检测方法的关键抗凝剂.
- 聚合诱导发射 (AIE) 为传感提供了独特的光特性.
- 开发对生物分析物的选择性和敏感探针是必不可少的.
研究的目的:
- 开发一种新的基于 thiazolium 的四乙烯衍生物 (TPET) 探针.
- 利用TPET的AIE特性进行敏感和选择性的肝素检测.
- 为了评估探头在复杂的生物介质中的性能,以及检测与肝素相关的分析物.
主要方法:
- 一种基于 thiazolium 的四乙烯衍生物 (TPET) 的合成.
- 利用聚合诱导发射 (AIE) 现象用于光检测.
- 通过静电相互作用研究探头与肝素的相互作用.
- 测试探头在广泛的pH范围内的稳定性及其对各种生物分子的选择性.
- 评估人工尿和人体血清中的检测极限.
主要成果:
- 在与肝素结合后,TPET表现出光"启动"反应.
- 探头可以在水溶液中敏感检测到低至20.2nM的肝素.
- TPET-氨酸复合体在广泛的pH范围内表现出卓越的稳定性和稳定性.
- 探测器显示了对肝素的高选择性,而不是其他葡萄糖胺和生物分子.
- 在生物样本中实现了低检测极限 (25%的人造尿中614.9nM,0.5%人体血清中78.4nM).
- 该系统成功地检测到低至0.15μM的蛋白质胺 (Hp抗毒剂).
结论:
- 开发的TPET探头为肝素检测提供了一种敏感,选择性和强大的方法.
- 基于AIE的策略在复杂的生物环境中有效检测肝素.
- 这种方法有可能用于对肝素水平的非侵入性生物医学和临床诊断.
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