长波长发射N-化碳点作为光探针,用于敏感检测铁酸盐和细胞成像
Yingte Wang1, Yijun Shen1, Jiandang Xue1
1School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|January 19, 2026
概括
用添加的碳点提供了一种快速和有选择的方法来检测酸盐 (PPi),这是一个关键的生物标志物. 这种具有成本效益的方法还可以实现实时细胞内PPI监测和生物医学成像.
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:
- 酸盐 (PPi) 是疾病的关键生物标志物,但其检测受到复杂和昂贵的方法的阻碍.
- 目前的PPi量化方法需要专门的仪器和复杂的程序,这限制了广泛的应用.
研究的目的:
- 开发一种新的,具有成本效益和敏感的酸盐 (PPi) 检测方法.
- 合成添加碳点 (N-CDs) 用于基于光的PPi检测,并探索它们在生物医学成像中的潜力.
主要方法:
- 使用中性红色和硫化碳化物的一步热水合成添加碳点 (N-CDs).
- 描述N-CD的光学特性 (刺激/发射光谱,量子产量) 并评估它们对PPi的光灭反应.
- 在复杂矩阵 (牛奶样本) 中检测PPi的N-CDs的验证和HeLa细胞中的实时细胞内PPi监测.
主要成果:
- 合成的N-CD在520/600nm时表现出最佳的光,量子产量为4.8%.
- 实现了快速 (1分钟),选择性的PPi检测,线性范围为1.3885.60μmol/L,低检测极限为0.42μmol/L.
- 在牛奶样本中证明了高精度 (95.26105.74%的恢复率) 和在具有良好的生物相容性的HeLa细胞中成功实时细胞内PPi成像.
结论:
- 多元元素合碳点为PPi检测提供了具有成本效益和敏感性的替代方案.
- 开发的N-CD适合在复杂的生物样本中分析PPi,并为体内应用提供潜力.
- 这项研究强调了N-CD作为分析传感和先进生物医学成像平台的多功能性.
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