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相关概念视频

Cryo-electron Microscopy01:28

Cryo-electron Microscopy

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Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...
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相关实验视频

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Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts
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冷保鲜剂的进步:探索更安全的替代品

Laura Lomba1, Cristina B García1, Lucía Benito1

  • 1Facultad de Ciencias de la Salud, Universidad San Jorge. Campus Universitario, Autov A23 km 299, 50830 Villanueva de Gállego, Zaragoza, Spain.

ACS biomaterials science & engineering
|December 23, 2023
PubMed
概括

本综述探讨了冷保存物质,重点介绍了传统的选择,如酒精和糖,以及新的,更少的有毒替代品,如离子液体和细胞和组织保存的深层环氧溶剂.

关键词:
生物医学 生物医学细胞系细胞系的细胞系.结冰保护剂是一种冷保护剂.阻止冰的再结晶,抑制了冰的再结晶.毒性的毒性 毒性的毒性

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科学领域:

  • 生物医学科学和研究.
  • 细胞和组织保存技术

背景情况:

  • 在生物医学研究中,冷保存对于保存细胞,组织和器官至关重要.
  • 传统的冷保护剂,如二甲基硫氧化物 (DMSO),对敏感样品构成毒性挑战.

研究的目的:

  • 审查各种冷保存物质.
  • 为了突出新兴的,少有毒的替代品,以提高样品可行性.

主要方法:

  • 关于冷保存剂的文献综述.
  • 基于化学家族的冷保护剂的分类.
  • 分析不同冷保护化合物的毒性和有效性.

主要成果:

  • 已建立的冷保护剂包括酒精,糖和硫氧化物.
  • 新型化合物,如离子液体,深溶剂和聚合物,显示出有希望的结果.
  • 与传统选择相比,这些新药具有较低的毒性.

结论:

  • 有各种各样的冷保存剂,每个都有特定的应用和局限性.
  • 新兴的冷保护剂为开发更安全,更有效的保存方法提供了机会.
  • 对新型化合物的进一步研究可以推动冷生物学领域的发展.