不透明溶液的高通量拉曼光谱的流电池
Filippo Zorzi1,2, Emil Alstrup Jensen3,4, Murat Serhatlioglu4
1Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino, 20134, Milan, Italy. luigino.criante@iit.it.
Lab on a chip
|December 4, 2024
概括
本研究介绍了一种新的微流体拉曼光谱设置,用于分析流动的流体,提高测量效率,并为先进的传感器开发实现实时监测流体相互作用.
科学领域:
- 分析化学 分析化学
- 频谱学是一种光谱学.
- 微流体学 微流体学
背景情况:
- 流动流体的传统拉曼分析通常使用化的毛细血管,这可能导致样品光降解并限制测量效率.
- 高通量分析对于开发用于液体组成的敏感传感器至关重要.
- 控制样品流量和位置是准确和高效的光谱测量的关键.
研究的目的:
- 为透明和不透明的流动流体开发高通量拉曼分析设置.
- 与现有方法相比,提高测量效率并减少样品光降解.
- 为了能够同时分析多个流体流和实时监测流体动力学.
主要方法:
- 使用了带有3维水力动力聚焦系统的微流体电池来精确控制流体流动.
- 集成了一个外部光学设置,用于样品激发和检测.
- 开发了一种经过修改的微流体细胞,能够平行地分层两个不同的流体流,以便同时进行分析.
主要成果:
- 该设置成功地对各种流动流体进行了拉曼分析,证明了多功能性.
- 水力动力聚焦有效控制样品位置和尺寸,减少光降解和增加吞吐量.
- 平行流体层和线路激发允许同时分析两个样本而无需移动部件,进一步提高了系统效率.
结论:
- 开发的微流体拉曼光谱学设置在高通量流体分析方面取得了重大进展.
- 这种方法提高了测量效率并减少了样品降解,为更敏感的流体组成传感器铺平了道路.
- 实时监测混合和反应的能力为研究流体动力学开辟了新的可能性.
更多相关视频
相关概念视频
01:26Raman Spectroscopy Instrumentation: Overview
296
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
296
01:23Flow Cytometry
12.3K
The development of flow cytometry techniques began in 1934 with initial attempts by Andrew Moldavan, a bacteriologist who counted the cells in a flowing capillary system. Moldavan pumped cells through a capillary tube focused under a microscope for visualization. The invention of photometry allowed the measurement of differentially-stained cells, and Louis Kamentsky developed the first multiparameter flow cytometer in 1965 to identify and count the cancer cells in cervical tissue specimens.
In...
In...
12.3K
01:20Raman Spectroscopy: Overview
307
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
307