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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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Tandem High-pressure Freezing and Quick Freeze Substitution of Plant Tissues for Transmission Electron Microscopy
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真空冷干果的超快速透行为

Kui Suo1,2,3, Ziyu Pan1, Liyu Shi1

  • 1Zhejiang Key Laboratory of Intelligent Food Logistic and Processing, College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, China.

Small (Weinheim an der Bergstrasse, Germany)
|February 26, 2026
PubMed
概括

真空冷干燥 (VFD) 果由于其独特的等级结构,表现出超快速的液体透. 这种快速的补水会在食品中产生一种新的"双脆"质感.

关键词:
细胞结构 细胞结构水友性是一种水友性.透的潜入方式穿孔式建筑的架构是多孔的在真空中冷干燥.

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Plunge Freezing: A Tool for the Ultrastructural and Immunolocalization Studies of Suspension Cells in Transmission Electron Microscopy
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科学领域:

  • 食品科学 食品科学 食品科学
  • 材料科学 材料科学 材料科学
  • 生物材料是一种生物材料.

背景情况:

  • 多孔材料的超快速液体透与多尺度结构有关.
  • 了解这些层次结构如何调节液体动力学和力学至关重要.
  • 真空冷干燥 (VFD) 提供了一种创建这种结构的方法.

研究的目的:

  • 为了阐明VFD果中的结构-透合.
  • 为了了解背后的机制的机制.

主要方法:

  • 在VFD果上进行了体外唾液补水试验.
  • 对热空气干燥的果进行了比较分析.
  • 进行了多尺度结构 (巨孔网络,微细胞裂,水友群) 的表征.

主要成果:

  • VFD果表现出超快速的透,推动了快速的纹理转换.
  • 在VFD果中的等级结构减少了流动阻力和增强了唾液捕获.
  • 这种协调迅速恢复了细胞气压力,创造了气压.

结论:

  • 该研究将多尺度结构与VFD果中的透动力学联系起来.
  • 层次结构的协同效应导致了独特的
  • 为快速补水食品和适应补水的材料建立了可通用的设计原则.