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相关概念视频

Changes in Skin Color: Clinical Perspectives01:14

Changes in Skin Color: Clinical Perspectives

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The first thing a clinician sees is the skin, so the examination of the skin should be part of any thorough physical examination. Most skin disorders are relatively benign, but a few, including melanomas, can be fatal if untreated. A couple of the more noticeable disorders, albinism and vitiligo, affect the appearance of the skin and its accessory organs.
Albinism
Albinism is a genetic disorder that affects (completely or partially) the coloring of skin, hair, and eyes. The defect is primarily...
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Sensory Functions of the Skin01:16

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The skin is the largest organ of the human body and plays a crucial role in our sensory perception. It contains a vast network of sensory receptors that contribute to the skin's protective function by perceiving physical, biological, and environmental cues and generating relevant responses.
There are two main categories of receptors on the skin: capsulated and non-capsulated. The non-capsulated ones are mainly the pain receptors. The capsulated ones can be further categorized based on the...
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相关实验视频

Updated: Feb 27, 2026

Resolving Water, Proteins, and Lipids from In Vivo Confocal Raman Spectra of Stratum Corneum through a Chemometric Approach
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贝叶斯推理框架用于在活体膜中体内识别皮肤材料属性.

Mark Wilkinson1, Khushal Goparaju2, Laura Nunez-Alvarez3

  • 1School of Mechanical Engineering, Purdue University, West Lafayette, IN, USA.

Journal of biomechanical engineering
|February 26, 2026
PubMed
概括

这项研究引入了一种新的贝叶斯框架,使用活性膜进行非侵入性皮肤生物力学评估. 它准确地推断出患者特定的皮肤特性,而不需要直接测量力,从而推进了皮肤病诊断.

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Visualizing and Quantifying Pharmaceutical Compounds within Skin using Coherent Raman Scattering Imaging
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Multimodal Imaging and Spectroscopy Fiber-bundle Microendoscopy Platform for Non-invasive, In Vivo Tissue Analysis
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科学领域:

  • 生物医学工程 生物医学工程
  • 皮肤病学 皮肤病学
  • 计算力学 计算力学 计算力学

背景情况:

  • 精确的皮肤机械特性体内表征对于皮肤病学和外科手术至关重要.
  • 目前的非侵入性方法难以捕捉复杂的,非线性皮肤行为.

研究的目的:

  • 开发一个贝叶斯推理框架用于非侵入性,体内皮肤生物力学评估.
  • 使用活性膜和应变场测量推断患者特定的皮肤特性.

主要方法:

  • 使用皮肤膜相互作用的有限元素模型与Holzapfel-Gasser-Ogden模型.
  • 开发了一个数据驱动的替代模型,使用PCA和高斯过程回归来降低计算成本.
  • 采用贝叶斯推理来估计皮肤参数从菌株现场数据.

主要成果:

  • 成功推断出关键的皮肤生物力学参数,包括剪切模量和纤维特性.
  • 证明了准确的参数恢复,即使在中等噪音下.
  • 表明多或多膜观测显著提高了参数识别能力.

结论:

  • 拟议的活性膜框架为体内皮肤生物力学评估提供了一种可行的非侵入性方法.
  • 这种方法绕过了直接力测量的需要,而是依赖已知的膜特性和应变数据.
  • 该方法在改善皮肤病诊断和手术规划方面具有重大潜力.