分析总内部反射显微镜 (TIRM) 实验和数据分析中的错误来源
J Alejandro Rivera-Morán1, Peter R Lang1
1Forschungszentrum Jülich GmbH, IBI-4, 52425 Jülich, Germany.
Polymers
|November 14, 2023
概括
总内部反射显微镜 (TIRM) 可以产生不准确的体悬浮测量由于噪声和不适当的设置. 这项研究揭示了探测器噪声,采样时间和粒子大小如何影响力和动态属性计算.
科学领域:
- 合体和表面科学科学
- 软物质物理学 软物质物理学
- 纳米技术 纳米技术
背景情况:
- 体悬浮体表现出由静态和水力动力相互作用控制的现象.
- 精确的力测量对于理解这些相互作用至关重要.
- 总内部反射显微镜 (TIRM) 是测量粒子-表面相互作用的关键技术.
研究的目的:
- 研究噪音和参数选择对TIRM测量的影响.
- 分析错误源对扩散系数和漂移速度等动态属性的影响.
- 确定TIRM的局限性,以准确测量力和动态.
主要方法:
- 在各种噪音条件下模拟TIRM测量.
- 多种颗粒大小和采样时间,以评估它们的影响.
- 专注于分析扩散系数和漂移速度.
主要成果:
- 探测器射击噪声和漫长的采样时间会在的潜在区域带来错误.
- 在特定的门下,背景噪音可以忽略不计.
- 动态数据对噪声强大,但对较长的采样时间和小粒子半径敏感.
结论:
- 对于TIRM测量,需要仔细考虑噪声和参数选择的准确性.
- 动态结果可能因部分滑动边界条件而偏离理论预测.
- 了解这些局限性对于可靠的体悬浮物表征至关重要.
更多相关视频
06:43Simultaneous Interference Reflection and Total Internal Reflection Fluorescence Microscopy for Imaging Dynamic Microtubules and Associated Proteins
Published on: May 3, 2022
3.5K
14:14Visualization of Cortex Organization and Dynamics in Microorganisms, using Total Internal Reflection Fluorescence Microscopy
Published on: May 1, 2012
11.6K
相关概念视频
Total Internal Reflection Fluorescence Microscopy
5.8K
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
5.8K
Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
389
Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
The ATR process begins by directing a beam...
389
