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一个生物相容的超分子凝网,用于光显微镜和纳米显微镜中的样品稳定

Marko Lampe¹, Bart Dietrich², Joanna Wnetrzak³

¹Advanced Light Microscopy Facility, EMBL, Meyerhofstr. 1, 69117, Heidelberg, Germany.

Scientific reports

|November 25, 2024

概括

这项研究引入了一种新的超分子凝用于显微镜. 水凝可以轻松地,无损地恢复活生物体,以便进一步观察和开发.

科学领域:

生物材料科学生物材料科学
显微镜技术显微镜技术
细胞生物学细胞生物学

背景情况:

显微镜的传统嵌入介质存在诸如毒性,长时间的聚合和不可逆转的过渡等挑战.
生物凝提供有限的批量一致性,并且需要严苛的样本回收条件.
目前的方法在恢复过程中经常损坏或杀死嵌入样本,阻碍了进一步的研究.

研究的目的:

开发一种用于活样本显微镜的新型超分子凝.
为了使未经破坏的样本回收用于随后的观察和分析.
为了确保与超高分辨率显微镜等先进的成像技术的兼容性.

主要方法:

开发一种具有可逆sol-gel特性的超分子水凝.
在水凝中嵌入的小生物的显微镜.
通过简单的水性管道进行样本回收.
使用STED纳米镜进行兼容性测试.

主要成果:

水凝允许通过用水进行强烈的管道注射来简单地,无损地恢复活体生物.
恢复过来的生物体仍然活着,能够进一步发展,不像来自其他矩阵的生物体.
水凝与多色超高分辨率STED纳米镜兼容.
凝避免了与传统嵌入介质相关的毒性和不可逆性的问题.

结论:

这种超分子凝为活样本显微镜和回收提供了重大进展.
它为各种研究应用提供了一种温和有效的嵌入和检索小生物的方法.
水凝与超高分辨率技术的兼容性扩大了其在先进的生物成像中的实用性.

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