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开源,高性能迷你2光子显微镜系统用于自由行为动物.

Blake A Madruga1,2,3, Conor C Dorian1,2, Long Yang1

  • 1Department of Neurology, UCLA School of Medicine, Los Angeles, CA, USA.

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概括

研究人员开发了一种开源微型2光子 (2P) 显微镜,用于深度脑成像. 这种UCLA 2P迷你望远镜能够在深层大脑结构和树突中记录高分辨率的神经活动.

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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
  • 光学成像技术的成像

背景情况:

  • 成像对于理解神经电路动态至关重要.
  • 对于深层大脑结构的体内记录,需要小型化显微镜.
  • 现有的技术在光收集效率和视野方面存在局限性.

研究的目的:

  • 为了介绍UCLA 2P迷你镜,一个开源的微型2光子显微镜.
  • 为了证明其在深层神经结构和树突中记录动态的能力.
  • 提供对设计和施工说明的公开访问.

主要方法:

  • 开发了一种小型的2光子显微镜,使用了两种基于的光子探测器.
  • 在150μm范围内实现了445μm × 380μm视野与电子聚焦.
  • 通过记录海马位点细胞,后皮质树突和深颗粒细胞中的动力学来测试该系统.

主要成果:

  • 美国加州大学洛杉矶分校的2P迷你望远镜在深层大脑区域展示了有效的成像.
  • 与光纤捆绑方法相比,实现了大约4倍的光收集.
  • 在开放场地行为期间,成功记录了620μm深度以上神经元的神经活动.

结论:

  • 美国加州大学洛杉矶分校的2P迷你镜是一个强大的,开源的工具,用于先进的体内成像.
  • 它的设计使得从深层神经结构和树突中以高分辨率进行记录.
  • 开源可用性促进了神经科学研究的更广泛采用和进一步发展.