用结构化照明显微镜对神经结构进行超高分辨率成像
Tristan C Paul1, Karl A Johnson1, Guy M Hagen1
1UCCS BioFrontiers Center, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918, USA.
Bioengineering (Basel, Switzerland)
|September 28, 2023
概括
超分辨率结构化照明显微镜 (SR-SIM) 现在对更厚的生物样本进行成像,在小鼠大脑组织中达到144nm的分辨率. 这一进步扩大了SR-SIM在现场研究应用中的实用性.
科学领域:
- 光学显微镜是一种光学显微镜.
- 生物医学成像学 生物医学成像学
- 神经科学研究研究的神经科学研究.
背景情况:
- 超分辨率结构化照明显微镜 (SR-SIM) 为生物样品提供高分辨率.
- 传统的SR-SIM仅限于薄型标本,如培养细胞,因为光线的透.
- 对较厚的组织进行成像需要适应的显微镜技术.
研究的目的:
- 适应SR-SIM用于成像较厚的生物标本.
- 为了在150微米厚的老鼠大脑部分中实现超高分辨率.
- 提高SR-SIM在神经科学和组织研究中的应用性.
主要方法:
- 使用修改过的数据处理策略.
- 采用了较粗的照明模式.
- 将SR-SIM应用于表达GFP的小鼠大脑冠状部分 (150微米厚).
主要成果:
- 成功成像了一个150微米厚的小鼠大脑组织部分.
- 实现了144nm的分辨率.
- 与传统广场成像相比,显示了1.7倍的分辨率改进.
结论:
- 经过调整的SR-SIM方法能够在厚厚的大脑组织中超高分辨率成像神经元结构.
- 这种技术克服了SR-SIM在组织成像方面的先前局限性.
- 扩大了神经科学研究中详细细胞和组织分析的可能性.
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