按需扩展光学和光声学显微镜 (ExFLPAM)
bioRxiv : the preprint server for biology
|July 28, 2023
概括
扩展显微镜 (ExM) 现在提供了增强的成像能力. 这种新方法允许按需进行光和染色标签,扩大其在活细胞和组织成像中的使用.
科学领域:
- 生物技术是生物技术.
- 显微镜的使用方法
- 细胞生物学 细胞生物学
背景情况:
- 扩展显微镜 (ExM) 物理放大样本用于传统显微镜上的纳米尺度成像.
- 现有的ExM方法在标签灵活性和成像方式方面存在局限性.
研究的目的:
- 开发一种新的策略,用于按需标签和使用膨胀显微镜进行先进的成像.
- 通过整合光和染色成像能力来扩大ExM工具包.
主要方法:
- 开发了一种使用在扩张过程中保留的光蛋白来在活细胞中按需标记亚细胞器官的策略.
- 实现非光色谱色彩开发用于明亮场和光声学成像.
- 将该技术应用于平面和体积格式的培养细胞和生物组织.
主要成果:
- 实现了与ExM兼容的活细胞的按需光蛋白标签.
- 通过使用色素对比,实现了高效的明亮场和光声学成像.
- 对细胞培养物和组织样本均有证明的适用性.
结论:
- 新的扩展光和光声学显微镜 (ExFLPAM) 战略显著扩大了ExM的应用范围.
- 这种方法为各种生物样本的纳米尺度成像提供了更大的灵活性.
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