通过基于物理的数据分析进行高度多重化的光谱FLIM
Mohamadreza Fazel1,2,3, Reza Hoseini1,2, Ayush Saurabh1,2
1Center for Biological Physics, Arizona State University, Tempe, AZ 85287, USA.
bioRxiv : the preprint server for biology
|August 20, 2025
概括
这项研究引入了一种贝叶斯框架,用于光谱光寿命成像 (S-FLIM),该框架可以逐一学习光子的光谱和寿命. 这种方法有效地解构了多种物种,即使具有重叠的光谱,使用有限的光子计数.
科学领域:
- 生物光子学和成像技术
- 分子光谱学 分子光谱学
- 计算生物学 计算生物学
背景情况:
- 光谱光终生成像 (S-FLIM) 结合了光谱和终生数据,用于多光体解卷.
- 现有的S-FLIM分析与预校准依赖性,光谱重叠和高光子要求作斗争.
- 光子光谱在S-FLIM数据中固有存在,因此不需要外部校准.
研究的目的:
- 开发一个新的贝叶斯式S-FLIM框架,用于同时,光子对光子的光谱和生命周期的学习.
- 克服当前S-FLIM分析的局限性,包括光谱重叠和高光子预算.
- 为了提高数据效率,并使有限的光子数量实现解卷.
主要方法:
- 为S-FLIM数据分析提出了贝叶斯框架.
- 该方法在光子对光子的基础上同时执行光谱和终身学习.
- 框架使用合成和实验S-FLIM数据集进行验证.
主要成果:
- 贝叶斯框架证明了高数据效率,每像素需要更少的光子.
- 它成功地将多达9种光谱重叠的光体物种的信号分解.
- 该方法消除了对预校准光谱信息的需求.
结论:
- 拟议的贝叶斯式S-FLIM框架为多种类的解卷提供了一个强大的和高效的解决方案.
- 它显著降低了光子预算要求,克服了光谱重叠的挑战.
- 这种方法提高了S-FLIM分析复杂生物样本的能力.
更多相关视频
相关概念视频
Confocal Fluorescence Microscopy
16.0K
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,...
16.0K
Super-resolution Fluorescence Microscopy
12.3K
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...
12.3K


