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相关概念视频

Strain and Elastic Modulus01:15

Strain and Elastic Modulus

4.1K
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or geometry under tensile, volume (also known as bulk), or shear stress, respectively, and is a dimensionless quantity. The strain experienced by a body under tensile or compressive stress is called tensile or compressive strain, respectively. In contrast, the strain experienced under bulk stress and shear stress is known as volume and shear...
4.1K
Measurements of Strain01:27

Measurements of Strain

2.2K
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain...
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相关实验视频

Updated: Sep 17, 2025

Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing
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Author Spotlight: Microfluidic Channel-Based Soft Electrodes and Their Application in Capacitive Pressure Sensing

Published on: March 17, 2023

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适用于植入式应变传感器的可伸缩封装.

Xinghao Huang1, Liheng Yang2, Riley Jacobsen1

  • 1Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, California 90089, United States.

ACS applied materials & interfaces
|July 4, 2025
PubMed
概括

这项研究开发了一种用于植入式应变传感器的新型纹烯封装,显著提高了生理环境中的伸展性和稳定性,以便更好地监测器官.

关键词:
膀体积的监测 膀体积的监测封装的封装方式植入式设备可以植入设备.微型纹 微型纹应变传感器 应变传感器可伸缩电子产品可伸缩电子产品

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Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
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Chronic Implantation of Multiple Flexible Polymer Electrode Arrays

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Insertion of Flexible Neural Probes Using Rigid Stiffeners Attached with Biodissolvable Adhesive

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相关实验视频

Last Updated: Sep 17, 2025

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Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
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科学领域:

  • 生物医学工程 生物医学工程
  • 材料科学 材料科学 材料科学
  • 传感器技术 传感器技术

背景情况:

  • 植入式应变传感器监测器官功能,但在生理流体中的伸展性,生物相容性和稳定性方面面临挑战.
  • 常见的可拉伸材料的高水透性降低了传感器的性能.

研究的目的:

  • 为植入式电容应变传感器开发一种高度可拉伸,生物相容和稳定的封装.
  • 为了提高器官监测传感器的性能和寿命.

主要方法:

  • 符合型帕利沉积,然后进行机械曲和热,以创建微观纹.
  • 利用纹的烯来增强伸展性和屏障性质.
  • 在幻象和ex vivo器官上测试传感器稳定性和性能.

主要成果:

  • 通过纹烯封装实现了超过60%的机械伸展性和出色的屏障性能 (0.07 g mm/m2 / day WVTR).
  • 提高了电容应变传感器的度因子,超过两倍.
  • 在膀模型上证明了长期稳定性和成功的实时器官变形传感.

结论:

  • 纹烯封装为植入式传感器提供了超越的伸展性,屏障功能和生物相容性的优越组合.
  • 这种方法显著提高了电容应变传感器的性能和耐用性.
  • 多功能封装技术对各种可植入器件进行持续的器官监测和向治疗具有前途.