增强3D培养球体的TIRF成像,通过使用气球执行器的液压压缩来进行3D培养球体
相关实验视频
Updated: Jun 21, 2026
07:41
Controlled Strain of 3D Hydrogels under Live Microscopy Imaging
Published on: December 4, 2020
4.1K
Maho Kaminaga1, Kaisei Nakano2, Yuichi Marui3
1Department of Mechanical Engineering, National Institute of Technology (KOSEN), Toyota College, 2-1 Eisei-cho, Toyota 471-8525, Japan.
Micromachines
|February 27, 2026
概括
研究人员开发了一种微流体装置,可以轻轻地压缩3D细胞球体. 这改善了瘤微环境的光成像,有助于癌症研究和药物发现.
科学领域:
- 生物技术是生物技术.
- 癌症研究 癌症研究
- 微流体学 微流体学
背景情况:
- 三维 (3D) 细胞培养比二维培养更好地模仿体内瘤微环境.
- 高灵敏度的光成像3D球体是困难的,因为有限的表面接触和浅透深度的技术,如全内部反射光显微镜 (TIRFM).
研究的目的:
- 开发一种方法来提高3D细胞球体的光学可访问性和成像质量.
- 在3D细胞培养模型中改善细胞表面动态的可视化.
主要方法:
- 设计了一个带有水驱动气球执行器的微流体装置.
- 液压压缩被应用到轻轻地按压3D球体对玻璃表面.
- 使用TIRFM和光显微镜来评估成像质量.
主要成果:
- 水静压缩显著增加了球体和观测表面之间的接触面积.
- 图像质量明显提高,特别是TIRFM的成像质量明显提高.
- 在压缩过程中保持了细胞活力和结构完整性.
结论:
- 开发的微流体系统提高了对3D球体高对比度成像的光学可访问性.
- 该方法补充了体积成像技术,用于观察活体3D系统中的细胞表面分子动力学.
- 该平台对3D培养中细胞表面相互作用的动态观测充满希望.
相关概念视频
01:05Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
01:28Three-Dimensional Microscopy in Microbiology
Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...