双通道事件显微镜用于超快的生物成像
Ruipeng Guo1, Xueli Pan2, Qilin Deng1
1Department of Electrical and Computer Engineering, Boston University, Boston, MA 02215, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
双通道事件显微镜 (DEM) 为生物动态提供超快的双色3D成像. 这项新技术以高速和高分辨率捕捉快速的细胞相互作用和生理过程.
科学领域:
- 生物光子学和成像技术
- 细胞和分子成像技术
- 生理学动力学 物理动力学
背景情况:
- 基本的生物过程涉及到快速的,多层次的动态跨多种类型的细胞在3D组织.
- 现有的成像模式在平衡速度,光谱容量,景深和分辨率方面存在局限性.
- 同时捕捉高时间分辨率,多色能力和体积覆盖率对于研究这些动态至关重要.
研究的目的:
- 引入双通道事件显微镜 (DEM),这是一个旨在克服当前技术中权衡的成像系统.
- 为了证明DEM的超快速,双通道体积成像能力,跨越大视野.
- 展示DEM在可视化快速多细胞相互作用和生物系统中的生理动态中的应用.
主要方法:
- 集成基于数字微镜装置 (DMD) 的脉冲照明.
- 整合了扩展的深度场 (DOF) 光学.
- 利用基于事件的传感用于超快的双通道体积成像,在2.3×1.3mm2的FOV中使用200μm的DOF.
主要成果:
- DEM使用光幻影和流量分析实现了准确的光谱分离和重建千赫兹速的快速运动.
- 在体内成像成功地可视化了自由游泳的斑马鱼中中性粒细胞和前恶性瘤.
- 在固定标本中,DEM提供了光学切割,以揭示细血管网络和心脏血流;它还以高时间准确度绘制了斑马鱼尾巴中的血液流动动态.
结论:
- DEM在事件驱动架构中结合了超快速采集,双通道功能,体积覆盖和内在光学分割.
- 这项技术提供了一个强大的平台,可用于可视化快速的多细胞相互作用和生物系统中的生理动态.
- DEM克服了以前的成像限制,使我们能够对复杂的生物过程有前所未有的洞察力.
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