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光灯寿命估计:使用Flipper-TR FLIM的实用方法

Tithi Mandal¹, Aurélien Roux¹, Juan Manuel García-Arcos²

¹Department of Biochemistry, University of Geneva, Geneva, Switzerland.

Methods in enzymology

|March 1, 2026

概括

本研究对使用光终身成像显微镜 (FLIM) 分析Flipper-TR膜染料寿命的方法进行了基准研究. 它为在活细胞膜张力研究中选择最佳寿命估计策略提供了一个框架.

科学领域:

细胞生物学细胞生物学
生物物理学的生物物理.
显微镜的使用方法

背景情况:

Flipper-TR是一种重要的膜染料,用于使用光终身成像显微镜 (FLIM) 测量活细胞膜张力.
对于Flipper-TR生命周期提取的最佳数据分析策略仍然未定义,这阻碍了定量FLIM应用.

研究的目的:

系统地比较和对比各种方法来估计Flipper-TR光寿命.
建立一个决策框架,在各种不同的实验条件下为Flipper染料选择最佳FLIM分析策略.

主要方法:

系统地比较Flipper-TR寿命估计技术:多指数复卷合适,尾部合适,光子到达平均时间 (第一时刻) 和相位分析.
在不同的光子预算,样本特性,显微镜模型和激光频率下评估估计器.
定量光终身成像显微镜 (FLIM) 数据采集和分析.

主要成果:

不同寿命估计器的性能因光子预算和实验参数而异.
光器分析和平均光子到达时间显示在测试条件下具有稳定性.
没有一种单一的方法普遍优于其他方法,这凸显了需要特定环境的选择的需要.

结论:

在FLIM中提供了Flipper-TR生命周期分析的全面基准.
根据实验背景,为选择适当的定量FLIM分析策略提供了指导.
标准化分析协议对于可重复的基于Flipper染料的膜张力测量至关重要.

关键词:

细胞力学细胞力学飞行员飞行员的飞行员飞-TRTR 在线播放光终身成像显微镜成像显微镜.频率域生命周期分析膜生物物理学膜生物物理学膜张力紧张的情况阶段分析 (Phasor) 分析时间域生命周期分析

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