可伸缩光二极管与聚合物工程半导体纳米线用于可穿戴光电显微镜
Pengsu Mao1,2, Haoran Li1,2, Xin Shan1,2
1Department of Industrial and Manufacturing Engineering, FAMU-FSU College of Engineering, Florida State University, Tallahassee, Florida 32310, United States.
ACS applied materials & interfaces
|July 5, 2023
概括
研究人员开发了一种柔软,可拉伸的光二极管,用于舒适,长期监测心血管变量. 这种可穿戴设备提供了比商业选择更高的可靠性,可访问的 point-of-care 诊断.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 可穿戴技术可穿戴技术
背景情况:
- 由于人口老龄化和流行病,医疗保健系统面临资源紧张.
- 目前的硬可穿戴健康监测器缺乏长期使用的舒适性和准确性.
- 需要柔软,可调整的设备来弥合电子和软人体组织之间的差距.
研究的目的:
- 开发一种柔软,可拉伸的光二极管,使其能够亲密而舒适地附着在人体上.
- 允许对心血管变量进行可靠的长期监测.
- 为了提高现有的可穿戴健康监测设备的准确性和舒适性.
主要方法:
- 使用复合光吸收器制造光二极管:在弹性聚合物矩阵中的有机散体异质连接.
- 描述光二极管的机械,电子和光学性能.
- 证明高可靠性,对心率变化和氧和的长期测量.
主要成果:
- 弹性聚合物矩阵增强了有机散体异质连接的形态和电子特性.
- 在可拉伸光二极管中观察到减少的暗电流和增强的光伏.
- 实现了对心血管变量进行高准确度的长期监测,可靠性更高.
结论:
- 开发的柔软和可拉伸的光二极管使得舒适的,合规的粘附可用于延长监测.
- 这项技术为下一代可穿戴光电显微镜设备提供了一个有前途的途径.
- 对心血管疾病更容易获得和负担得起的诊断诊断的潜力.
相关概念视频
Overview of Electron Microscopy
The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
Overview of Microscopy Techniques
The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...


