SOGO-SOFI,光调节的超分辨率光学波动成像,仅使用20个原始,用于高保真重建
Fudong Xue1, Wenting He1, Dingming Peng2
1Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.
Fundamental research
|June 18, 2025
概括
一种新的超高分辨率成像技术,SOGO-SOFI,使用光调制来增强光蛋白的光交换. 这种方法可以实现高质量的活细胞成像,具有更好的时间分辨率和更少的文物.
科学领域:
- 生物物理学的生物物理.
- 光学成像技术的成像
- 细胞生物学 细胞生物学
背景情况:
- 超高分辨率光学波动成像 (SOFI) 和光色SOFI (pcSOFI) 使用可逆光切换光蛋白 (RSFP) 的静态光交换来进行广场超高分辨率成像.
- (pc) SOFI的活细胞应用受到结构不连续性和低空间分辨率的限制,因为需要少量来进行图像重建.
研究的目的:
- 开发一种先进的SOFI技术,克服现有高质量活细胞超分辨率成像方法的局限性.
- 为了提高时间分辨率并减少活细胞超分辨率显微镜中的工件.
主要方法:
- 通过优化光调制来最大限度地提高RSFP光开频率,开发同步开启和逐渐关闭的SOFI (SOGO-SOFI).
- 获取超高分辨率图像,使用最小的数 (20) 进行高质量的重建.
- 将SOGO-SOFI与Airyscan相结合,可以提高图像对比度和分辨率.
主要成果:
- 与pcSOFI相比,SOGO-SOFI只用20个实现了高质量的重建,大大减少了文物.
- 使用SOGO-SOFI对内质网膜 (ER) 的活细胞成像显示,时间分辨率 (100 fps) 增加了10倍.
- 与Airyscan集成将图像对比度和分辨率提高1.5倍 (从140nm到91nm),使大脑切片和双色图像的深度成像成为可能.
结论:
- SOGO-SOFI代表了活细胞超分辨率显微镜的重大进步,提供了更高的时间分辨率和更少的工件.
- 该技术是多功能,适用于各种生物样本,包括厚组织和双色成像场景.
- SOGO-SOFI为研究动态细胞过程提供了强大的工具,以前所未有的细节和速度进行研究.
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