一个比度上转换纳米探头使得超高分辨率的成像能够感知活细胞中的生物醇
Hongqi Chen1, Ruoxin Wang1, Juanjuan Cheng1
1Anhui Province Key Laboratory of Biomedical Materials and Chemical Measurement, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China. hq80chen@mail.ahnu.edu.cn.
概括
我们创建了一个新的纳米探测器,以检测具有高灵敏度的生物乙醇. 这种工具可以在纳米尺度上对活细胞中的生物乙醇进行超分辨率成像.
科学领域:
- 生物化学 生物化学
- 纳米技术纳米技术
- 细胞生物学 细胞生物学
背景情况:
- 生物乙醇在细胞过程中起着至关重要的作用.
- 对生物醇的敏感检测对于理解细胞功能至关重要.
- 现有的检测方法在灵敏度和空间分辨率方面存在局限性.
研究的目的:
- 开发一种新的升级转换发光比度纳米探针.
- 为了实现高灵敏度和超分辨率的生物乙醇检测.
- 在单个粒子层面上可视化活细胞内的生物乙醇.
主要方法:
- 一个升级转换发光比度纳米探针的开发.
- 应用单粒子定位和染方法.
- 在活细胞中进行超高分辨率成像.
主要成果:
- 纳米探针对生物乙醇检测具有很高的灵敏度 (大约25nM).
- 实现了单颗粒子水平检测.
- 超高分辨率成像使得在活细胞中的22纳米空间内检测到生物乙醇.
结论:
- 开发的纳米探针为敏感的生物乙醇检测提供了一个强大的工具.
- 这项技术可以在活细胞环境中对生物乙醇进行超高分辨率成像.
- 这些发现为研究涉及生物醇的细胞过程开辟了新的途径.
相关概念视频
Super-resolution Fluorescence Microscopy
7.0K
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...
7.0K
Protein Dynamics in Living Cells
2.1K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.1K


