MiniXL:一个开源的,大视野的光微镜,可实现单细胞分辨率和小鼠多区域成像
Pingping Zhao1, Changliang Guo1,2, Mian Xie3
1Department of Neurology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA.
Science advances
|June 11, 2025
概括
研究人员开发了MiniXL迷你望远镜,用于跟踪小鼠的神经活动. 这项新技术提供了更广泛的视野,使得在复杂的行为过程中能够同时在多个大脑区域进行成像.
科学领域:
- 神经科学是一个神经科学.
- 生物医学工程 生物医学工程
- 动物行为 动物行为
背景情况:
- 了解神经机制需要跟踪自由行为动物的大脑活动.
- 目前的小型化显微镜的视野有限,阻碍了多个大脑区域的成像.
- 在先进的体内神经活动监测方面存在技术差距.
研究的目的:
- 开发了一种具有扩展视野的小型化显微镜.
- 为了使小鼠多个大脑区域的同时成像.
- 为了促进神经动力学在复杂的行为过程中的研究.
主要方法:
- 开发了Extra Large FOV迷你望远镜 (MiniXL),这是一个3.5克的设备,具有3.5毫米的视野.
- 在海马体的背部CA1区域进行大规模的神经元群体记录.
- 在双边中间前额叶皮质 (mPFC) 和核 (NAc) 中同时对多个大脑区域进行成像.
主要成果:
- MiniXL成功地捕获了海马中大规模的神经元群活动.
- 在社交行为期间,在双边mPFC和mPFC-NAc之间展示了同时成像.
- 在多天内实现了稳定的细胞跟踪,展示了长期记录能力.
结论:
- MiniXL迷你镜显著扩大了微型显微镜的视野.
- 在自由行为小鼠中实现前所未有的同时记录多个大脑区域.
- MiniXL的开源性质旨在降低神经科学界的采用障碍.
相关概念视频
Imaging Biological Samples with Optical Microscopy
9.1K
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
9.1K
Super-resolution Fluorescence Microscopy
12.3K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
12.3K
Overview of Microscopy Techniques
10.7K
The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
10.7K
Two-Dimensional Microscopy in Microbiology
1.8K
Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...
1.8K
Three-Dimensional Microscopy in Microbiology
907
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...
907


