基于聚合诱导的排放增强的快速和特定的光探头,用于在生物系统中检测离子
Yong An1, Bo Li2, Yongzhi Yu2
1The First School of Clinical Medical, Gansu University Of Chinese Medicine, Lanzhou, Gansu 730000, PR China; Gansu University Key Laboratory for Molecular Medicine & Chinese Medicine Prevention and Treatment of Major Diseases, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, PR China; Gansu Pharmaceutical Industry Innovation Research Institute, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, PR China.
Journal of hazardous materials
|December 24, 2023
概括
一种新型的光探测器TPE-CPGH能够检测有害的离子 (Hg2+),其灵敏度和特异性很高. 这种探测器还可以减轻生物系统中引起的氧化应激.
科学领域:
- 化学传感器是一种化学传感器.
- 生物技术是生物技术.
- 环境科学环境科学
背景情况:
- (Hg2+) 具有重大环境和健康风险.
- 开发敏感和特定的Hg2+检测方法至关重要.
- 基于的光探针为生物分子检测提供了独特的优势.
研究的目的:
- 设计和合成一种基于四烯 (TPE) 的新型光探,TPE-Cys-Pro-Gly-His (TPE-CPGH).
- 使用聚合诱导排放 (AIE) 机制来进行敏感的Hg2+检测.
- 调查探针在检测各种环境和生物样本中的Hg2+的有效性及其治疗潜力.
主要方法:
- 使用Cys和His残留物模拟金属蛋白Hg2+结合点的TPE-CPGH探针的设计.
- 使用Pro-Gly进行β折形成,以促进与Hg2+的空间协调和聚合.
- 采用光光谱技术进行定量Hg2+检测并评估探头性能 (特异性,灵敏度,pH范围,响应时间).
主要成果:
- 对于检测Hg2+而言,TPE-CPGH表现出高的特异性和灵敏性,检测极限 (LOD) 为46.2nM.
- 探头表现出快速反应和广泛的pH适用性.
- 在环境样本,活细胞和生物体中有效检测Hg2+是由于低细胞毒性,高水溶性和细胞透性而实现的.
结论:
- TPE-CPGH是一种高效的光探针,用于敏感和特定的Hg2+检测.
- 该探测器显示出对Hg2+在复杂的生物和环境矩阵中的实时监测的前景.
- 在体外和体内,TPE-CPGH在减轻Hg2+暴露引起的氧化应激方面表现出潜力.
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