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相关概念视频

Mass Analyzers: Overview01:13

Mass Analyzers: Overview

The mass analyzer is a crucial component of the mass spectrometer. In the ionization chamber, the vaporized sample is bombarded with a high-energy electron beam to generate a radical cation and further fragment into neutral molecules, radicals, and cations. A series of negatively charged accelerator plates accelerate the cations into the mass analyzer. The mass analyzer separates ions according to their mass-to-charge (m/z) ratios and then directs them to the detector. The common types of mass...
Mass Analyzers: Common Types01:19

Mass Analyzers: Common Types

The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
Atomic Emission Spectroscopy: Instrumentation01:22

Atomic Emission Spectroscopy: Instrumentation

The instrumentation of atomic emission spectrometry (AES) involves various components, including atomization devices that convert samples into gas-phase atoms and ions. There are two main types of atomization devices: continuous and discrete atomizers.  Continuous atomizers, like plasmas and flames, introduce samples in a constant stream, while discrete atomizers inject individual samples using syringes or autosamplers. The most common discrete atomizer is the electrothermal atomizer.
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
Nodal Analysis01:10

Nodal Analysis

Nodal analysis is a fundamental method in electrical engineering used to simplify the process of circuit analysis. This method revolves around the concept of using node voltages as the primary variables for circuit analysis. The objective is to determine the voltage at each node in a circuit, which can then be used to find other quantities of interest, such as currents through specific components.
Consider, for instance, a simple circuit composed of three nodes and three resistors, as shown in...

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相关实验视频

Updated: Jun 30, 2026

Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures
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MEAanalysis:一个开源的R包,用于下游可视化Axis导航器在单个电极级别的多电极阵列爆发数据.

Emily A Gordon1, David L Bennett1, Georgios Baskozos1

  • 1Nuffield Department of Clinical Neurosciences, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DU, United Kingdom.

Bioinformatics advances
|August 1, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了MEAanalysis,这是一个用于在单个电极层面可视化多电极阵列 (MEA) 数据的R包. 该工具通过提供比全井方法更详细的分析来增强对可刺激细胞网络变异性的理解.

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Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation
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Recording Network Activity in Spinal Nociceptive Circuits Using Microelectrode Arrays
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Recording Network Activity in Spinal Nociceptive Circuits Using Microelectrode Arrays

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相关实验视频

Last Updated: Jun 30, 2026

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Interfacing Microfluidics with Microelectrode Arrays for Studying Neuronal Communication and Axonal Signal Propagation
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科学领域:

  • 电子生理学 电子生理学
  • 计算神经科学是一种神经科学.
  • 生物信息学是一种生物信息学.

背景情况:

  • 多电极阵列 (MEA) 技术产生电生理学数据,这些数据对于表征可刺激细胞至关重要.
  • 目前的MEA数据分析通常在整个井级汇总参数,限制了对网络时空动态的洞察力.
  • 对MEA数据进行可复制和详细的分析仍然是现场的一个挑战.

研究的目的:

  • 开发一个开源的R包,MEAanalysis,用于对MEA数据进行高级分析.
  • 为了能够在单个电极水平上可视化爆破参数.
  • 改善对可刺激细胞网络的时空变异性的理解.

主要方法:

  • 开发MEA的分析R包.
  • 与Axis Navigator软件集成,用于数据处理.
  • 单个电极爆破参数的可视化.

主要成果:

  • MEA分析提供了突破参数的单个电极水平可视化.
  • 该套件有助于更深入地了解细胞网络中的时空变异性.
  • 与传统的全井分析相比,提供了更细致的方法.

结论:

  • MEA分析增强了MEA电生理学数据的分析能力.
  • 该方案促进了可激发细胞网络的更全面的表征.
  • 开源可用性鼓励社区反和进一步开发.