在斜平面显微镜中的主动远程焦点稳定
Trung Duc Nguyen1, Amir Rahmani2,3, Aleks Ponjavic2,4
1Lyda Hill Department of Bioinformatics, UT Southwestern Medical Center, Dallas, TX 75390, USA.
bioRxiv : the preprint server for biology
|December 16, 2024
概括
研究人员开发了一种用于斜平面显微镜 (OPM) 的新光板稳定方法. 这种技术避免了样品的光,使得长期,高精度的图像像像的细胞结构,如动蛋白骨架.
科学领域:
- 生物物理学的生物物理.
- 显微镜的使用方法
- 细胞生物学 细胞生物学
背景情况:
- 光板光显微镜 (LSFM) 为生命科学提供了高效的体积成像.
- 长期的LSFM需要稳定的光板对准到检测焦平面.
- 现有的稳定方法使用样品光,导致光漂白和中断成像.
研究的目的:
- 为斜平面显微镜 (OPM) 开发一种新的光板稳定方法.
- 为了实现光板稳定,而不依赖样品光.
- 为了在OPM中实现长期,高精度的亚细胞成像.
主要方法:
- 利用斜平面显微镜 (OPM),这是LSFM的一个变体,用于单一的照明和检测目标.
- 实施了一种无光方法,以稳定光片到检测焦平面.
- 在受控的实验室环境中进行了一小时的成像采集.
主要成果:
- 在光板稳定中达到大约43nm的轴精度.
- 在检测系统的焦点深度内保持稳定的光板对齐.
- 在黑色素瘤癌细胞中成功地显示了actin骨架的亚细胞成像.
结论:
- 一种新的,没有光的光板稳定技术已成功开发用于OPM.
- 这种方法显著提高了对长期活细胞研究的成像稳定性和精度.
- 该技术允许在不损害样本完整性的情况下进行详细的亚细胞成像.
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