相关实验视频
Updated: Jun 10, 2025
08:28
Development of an In Vitro Ocular Platform to Test Contact Lenses
Published on: April 6, 2016
10.6K
隐形眼镜-眼膜接口:研究眼膜
Aisling M Mann1, James S Wolffsohn2, Graeme Young3
1Biomaterials Research Unit, School of Engineering and Applied Chemistry, Aston University, Birmingham B4 7ET, UK.
概括
隐形眼镜的佩戴显著改变了眼膜蛋白质的组成. 新眼膜 (TE) 技术揭示了眼睛宿主反应的变化,这是标准的眼膜分析所遗漏的,这对于隐形眼镜研究至关重要.
科学领域:
- 眼科和视觉科学 眼科和视觉科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 眼膜对眼睛健康和视力至关重要.
- 隐形眼镜的磨损与膜的接口,可能会改变它的组成.
- 了解这些相互作用是改善隐形眼镜舒适性和安全性的关键.
研究的目的:
- 为了研究隐形眼镜磨损对膜蛋白质动态的影响.
- 探索膜和现场隐形眼镜之间的复杂接口.
- 为此分析使用一种新的撕裂膜 (TE) 提取技术.
主要方法:
- 从磨损的隐形眼镜中收集的眼包裹 (TE) 使用微离心机"背带"技术.
- 通过实验室在芯片上的微流体检测分析了TE和非镜头撕裂样本的蛋白质组成.
- 在TE,透镜沉积的撕裂部件和撕裂阴道之间比较了蛋白质配置.
主要成果:
- TE蛋白质配置文件与其他部件有显著差异.
- 与非镜头撕裂相比,特异性蛋白质度 (lyszyme, lipocalin, IgA, lactoferrin,albumin) 在 TEs 中有所不同.
- 在63%的TE样本中检测到白蛋白,而在插入前的膜样本中,这一比例为19%.
结论:
- 眼封面 (TE) 方法使物质的差异化,并揭示眼睛宿主反应的微妙变化.
- 这种方法提供了对隐形眼镜诱导的膜变化的洞察力,而传统分析没有发现.
- TE技术可以提高人们在佩戴隐形眼镜时对眼睛表面环境的理解.
相关概念视频
01:16Focusing of Light in the Eye
2.5K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
2.5K
01:05Total Internal Reflection Fluorescence Microscopy
5.7K
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.
5.7K