一个光稳定发光的(III) 复杂探头用于成像活细胞内源性线粒体二氧化硫
Mengzhao Jia1, Jia Wu2, Xiaolei Wu3
1School of Chemistry and Chemical Engineering, Shandong University of Technology, 255049 Zibo, China.
概括
研究人员开发了一种新的基于的探头,用于敏感的实时检测二氧化硫 (SO2). 这种先进的探测器可以在活细胞中提供线粒体成像,帮助疾病诊断和生物医学研究.
科学领域:
- 化学生物学 化学生物学
- 生物分析化学 生物分析化学
- 无机化学 无机化学
背景情况:
- 二氧化硫 (SO2) 是一种关键的信号气体分子,与炎症性疾病和癌症有关.
- 发光探针对于检测SO2至关重要,但现有的选择缺乏亚细胞特异性和光稳定性.
- 线粒体SO2在细胞过程中发挥作用,但其实时成像仍然具有挑战性.
研究的目的:
- 开发一种新型,高度敏感的发光探测器,以快速准确地检测SO2.
- 为了实现亚细胞选择性,特别针对生物系统中的线粒体SO2.
- 增强用于生物医学和临床应用的SO2检测探针的能力.
主要方法:
- 基于的发光探针的合成和描述 (Ir3).
- 对探头在水溶液中检测SO2的灵敏度,选择性和光稳定性的评估.
- 活细胞成像实验评估线粒体SO2检测和探测细胞毒性.
主要成果:
- 开发的基于Ir (III) 的探测器 (Ir3) 能够快速,实时,准确地检测SO2.
- 在活细胞中,Ir3表现出低细胞毒性和异常的线粒体SO2成像.
- 与现有的SO2检测方法相比,探测器显示出更好的光稳定性.
结论:
- 基于Ir (III) 的探头 (Ir3) 是一种有前途的工具,用于敏感和选择性检测线粒体SO2.
- 这种探测器有助于实时对生物系统中的SO2进行成像,从而进一步了解其作用.
- 这些发现支持开发用于临床和生物医学应用的先进的基于复杂的Ir(III) 探针.
更多相关视频
06:57Author Spotlight: Fluorescence-Based Quantification of Mitochondrial Membrane Potential and Superoxide Levels Using Live Imaging in HeLa Cells
Published on: May 12, 2023
7.3K
09:47Author Spotlight: Advancing Mitochondrial Research - mtHyper7 Biosensor for Subcellular Analysis
Published on: June 2, 2023
2.1K
相关概念视频
Confocal Fluorescence Microscopy
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
Super-resolution Fluorescence Microscopy
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
Three-Dimensional Microscopy in Microbiology
Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...
