三维无扫描图案照明,使用时间复合的多线时间聚焦进行多细胞操纵,单细胞分辨率
Kenta Inazawa1,2,3, Mayumi Yamada4, Takayuki Michikawa1,5,6
1RIKEN Center for Advanced Photonics, Attosecond Science Research Team, Saitama, Japan.
Journal of biomedical optics
|July 29, 2025
概括
我们开发了一种用于3D两光子图案照明的新方法,可以实现单细胞分辨率. 这种技术可以抑制干扰,使细胞在3D环境中能够精确的光刺激.
科学领域:
- 光学和光子学 在光学和光子学.
- 生物医学工程 生物医学工程
- 细胞成像 细胞成像
背景情况:
- 三维 (3D) 两光子图案照明结合了计算机生成全息 (CGH) 和时间聚焦 (TF) 以实现有效的光刺激.
- 由于多个光点之间的干扰,当前使用TF方法的CGH在3D中难以实现单细胞分辨率.
研究的目的:
- 为了实现单细胞分辨率的3D两光子图案照明.
- 克服现有的TF-CGH系统在3D结构中的单个细胞解决方面的局限性.
主要方法:
- 开发了一种新的系统,将CGH与时间复合的多线时间聚焦 (TM-ML-TF) 结合起来.
- 通过将梯级格子纳入TF-CGH设置来实现TM-ML-TF.
- 测量了3D两光子光分布,以评估系统性能.
主要成果:
- TM-ML-TF系统显著抑制了相邻的焦点平面 (轴距离为20μm) 之间的交叉声器人件,从81%到15%降低.
- 在单细胞分辨率下,成功展示了球体内的3D目标细胞的光转换.
结论:
- 时间复杂的多线时间聚焦有效地抑制了多点模式中的干扰.
- TM-ML-TF-CGH系统可实现精确的3D图案照明,具有单细胞分辨率,用于高级光刺激应用.
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