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-编码的碳点用于可视化 通过双光子光灯终身显微镜对核酸进行成像
Yong Guo1, Zhenlong Huang1, Luwei Wang1
1College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), Shenzhen University, Shenzhen, Guangdong 518060, China.
Analytical chemistry
|March 7, 2025
概括
研究人员开发了新的-编碳点 (F-NCDs),用于同时进行DNA和RNA成像. 这些探测器可以通过使用双光子光终身显微镜 (TP-FLIM) 实现活细胞中核酸的多色可视化和量化.
科学领域:
- 生物技术是生物技术.
- 细胞生物学 细胞生物学
- 材料科学 材料科学 材料科学
背景情况:
- 光成像对于研究活细胞中的核酸 (DNA和RNA) 动态至关重要.
- 目前存在的局限性在于探针可以同时准DNA和RNA并分析它们的分布.
- 还需要用于量化生物体中DNA和RNA比率的工具.
研究的目的:
- 开发用于同时可视化和量化DNA和RNA的新型探针.
- 利用二光子吸收 (TPA) 来提高成像深度和降低光毒性.
- 建立一种分析细胞和组织样本中核酸分布和比例的方法.
主要方法:
- 通过热水方法合成-编的碳点 (F-NCDs).
- 关于光稳定性,生物相容性和光对核酸的终身敏感性的F-NCD的表征.
- 使用两光子光终身显微镜 (TP-FLIM) 在多色成像中使用F-NCD作为探针的应用.
主要成果:
- F-NCDs表现出稳定的光,良好的生物相容性,以及对DNA和RNA敏感的光寿命.
- 通过TP-FLIM成功量化和区分细胞核中的DNA和RNA分布.
- 在植物细胞分裂和动物组织分化过程中有效追踪DNA/RNA分布变化.
结论:
- 使用TP-FLIM,F-NCD作为可视化和量化DNA和RNA分布的有效探针.
- 这项开发为准备TPA碳点用于生物成像提供了洞察力.
- F-NCDs为动态研究各种生活活动中的遗传物质功能提供了有价值的工具.
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