改进传输电子显微镜的样本制备:Trypan蓝色染色和低点合剂嵌入超薄细胞段
Noriyuki Ishii1, Yoshito Koja2, Keiichi Noguchi3
1Cellular and Molecular Biotechnology Research Institute, Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan; Electron Microscopy Facility, Open Research Facilities Station, Open Research Platform Unit, Tsukuba Innovation Arena (TIA) Central Office, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central-6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan; The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan; Department of Physics, Hamamatsu University School of Medicine, 1-20-1 Handayama, Chuo, Hamamatsu, Shizuoka 431-3192, Japan.
研究人员通过使用Trypan Blue染色和低点 agar来改进传输电子显微镜 (TEM) 样品制备. 这种方法增强了视觉跟踪,避免了危险的化学物质,使得TEM样本处理更有效和更安全.
科学领域:
- 细胞生物学 细胞生物学
- 显微镜技术的使用方法
背景情况:
- 传输电子显微镜 (TEM) 对生物研究至关重要.
- 传统的TEM样品制备是漫长,复杂的,并且使用危险的化学物质.
- 关于危险物质 (如四氧化和环氧树脂) 的规定正在增加.
研究的目的:
- 开发一个修改的TEM样本准备协议.
- 为了改善样品在准备过程中的可视化和跟踪.
- 消除在TEM样本处理中使用危险化学品.
主要方法:
- 细胞用Trypan Blue染色,以提高可见性.
- 低点阿加被用于精确的样品嵌入.
- 修改后的协议避免了四氧化和环氧树脂.
主要成果:
- 改进了目标细胞和区域的视觉识别.
- 可以实现精确的样本嵌入.
- 消除危险化学物质,如四氧化和环氧树脂.
- 防止切割空块,从而提高工作流程的效率.
结论:
- 修改后的协议为TEM样本准备提供了更安全,更有效的替代方案.
- 这种方法提高了定位和嵌入TEM生物样本的能力.
- 该议定书支持遵守有关危险物质的国际法规.
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