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相关概念视频

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Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
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The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
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Natural selection, a fundamental concept in evolutionary biology, is the mechanism by which evolution is driven, favoring organisms that are best adapted to their environments. This process enhances their chances of survival and reproduction. Adaptation, a key outcome of this process, involves genetic modifications that optimize an organism's functionality under specific environmental challenges, such as extreme cold or thinner air at high altitudes.
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蜂多点自适应技术用于双光子介面镜.

Shuai Chen1,2,3, Mengke Yang2,4, Jing Lyu2

  • 1Guangxi University, Advanced Institute for Brain and Intelligence and School of Physical Science and Technology, Nanning, China.

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概括
此摘要是机器生成的。

这项研究引入了一种新型的细胞多点适应技术 (CMAT),以增强双光子间距镜成像. CMAT扩展视野,提高高分辨率的神经电路分析的光学质量.

关键词:
适应式光学适应式光学实时波浪正面校正两光子介视镜 (mesoscope) 是一种两光子介视镜.

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科学领域:

  • 神经科学是一个神经科学.
  • 光学成像技术的成像
  • 生物物理学的生物物理.

背景情况:

  • 整个视野 (FOV) 的高空间分辨率光学成像对于分析神经科学中大规模的神经电路动态至关重要.
  • 当前的中视镜成像技术在实现一致的光学质量和将FOV扩展到超出目标的原始设计之外方面存在局限性.
  • 在细胞和亚细胞分辨率上准确地捕捉神经活动的时空模式,对于理解大脑功能和疾病至关重要.

研究的目的:

  • 开发一种技术,可以扩展成像FOV在两个光子介视镜,同时提高整个FOV的光学质量.
  • 建立一种可靠的方法,以显著扩展FOV超出显微镜对象的原始设计规格.
  • 保持原始分辨率规格,同时改善用于更广泛的神经科学应用的成像能力.

主要方法:

  • 实施一种新的方法,将块扫描与自适应光学 (AO) 校正结合起来,使用蜂多点自适应技术 (CMAT).
  • 将成像区域划分为子区域,每个子区域都通过可变形镜 (DM) 补偿和实时波面校正进行了优化.
  • 用户定义的子区域扫描功能,自动加载偏差校正值以获得最佳光学性能.

主要成果:

  • CMAT显著提高了双光子介光镜成像性能,将有效的FOV从6x6mm^2扩展到8x8mm^2.
  • 在外围区域显著改善光学质量,保持中央高分辨率 (~1μm横向, ~10μm轴向),并改善外围 (~1.3μm横向, ~14μm轴向).
  • 在转基因小鼠模型中,对Ca2+成像的图像对比度,光学分辨率和信号与噪声比率 (SNR) 进行了证明.

结论:

  • CMAT技术显著扩大了有效的FOV,并提高了双光子介面镜系统的光学质量.
  • 这种方法为具有细胞和亚细胞分辨率的大规模神经电路功能成像提供了关键的技术进步.
  • 该方法可在广泛的大脑区域提供可靠的单细胞分辨率成像,推进神经科学研究.