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相关概念视频

Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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 developed.
Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

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相关实验视频

Updated: Jun 20, 2026

In vivo Optogenetic Stimulation of the Rodent Central Nervous System
09:37

In vivo Optogenetic Stimulation of the Rodent Central Nervous System

Published on: January 15, 2015

59.3K

在活体中,光遗传学使用犹他州的光阵列,其光输出和空间选择性得到了增强.

Niall McAlinden1, Christopher F Reiche2, Andrew M Clark3

  • 1SUPA, Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow, United Kingdom.

Journal of neural engineering
|July 31, 2024
PubMed
概括
此摘要是机器生成的。

研究人员开发了犹他奥普特罗德阵列 (UOA),用于对非人类灵长类动物进行精确的光遗传刺激. 这种改进的设备增强了用于神经电路操纵的光输送和空间选择性.

关键词:
神经技术的神经技术非人类的灵长类灵长类动物.光学建模的光学建模视觉遗传学 视觉遗传学μLED LED 是一个 LED 灯.

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Two Different Real-Time Place Preference Paradigms Using Optogenetics within the Ventral Tegmental Area of the Mouse
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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
  • 视觉遗传学 视觉遗传学

背景情况:

  • 光遗传学提供精确的神经电路控制,但在大型动物模型中面临挑战.
  • 为显著的大脑区域操纵扩展光遗传工具仍然是一个技术障碍.

研究的目的:

  • 为了开发和验证犹他Octrode Array (UOA) 精确的*in vivo*光遗传学大脑刺激在非人类灵长类动物.
  • 为了提高空间选择性和光输送的效率,用于神经准.

主要方法:

  • 制造了一种创新的玻璃/基板,用于光学插座器的透过通道.
  • 光学建模以优化设备尖端结构和预测照明模式.
  • 在的视觉皮层使用Channelrhodopsin-2 (ChR2) 表达神经元进行体内测试.

主要成果:

  • 通过稀释UOA后板,提高了80%的光传递效率和热性能.
  • 整合一个光学插座器通过减少流浪光线显著提高了空间选择性.
  • 在体内结果证实了预测的照明配置文件,并根据刺激部位展示了不同的神经反应.

结论:

  • UOA为非人类灵长类动物的光遗传刺激提供了增强的空间和时间精度.
  • 开发的制造方法和光学插座设计代表了神经接口技术的重大进步.
  • 这项技术使得在大型动物模型中神经回路的更复杂的研究成为可能.