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Updated: Jul 31, 2026

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揭开 γD-晶体聚合途径,以了解白内障形成,使用光相关谱学

Mangesh Bawankar1, Bhaswati Sengupta2, Sujata Malik1

  • 1Department of Biological Sciences and Bioengineering, Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology, Kanpur, UP India.

Molecular vision
|July 3, 2025
PubMed
概括

研究人员在低pH值下研究了gammaD-晶蛋白聚合,识别了像pentamers和25-mers这样的中间物种. 这项研究有助于理解白内障形成机制.

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X-ray Diffraction of Biological Samples01:10

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X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal crystal...
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Determination of Crystal Structures

In the late 1800s, the revelation that light extended beyond visible wavelengths led to the discovery of X-rays by Wilhelm Roentgen. Recognized as high-energy electromagnetic radiation with short wavelengths, X-rays prompted exploration into their interaction with crystals. Max von Laue proposed in 1912 that the periodic arrangement of atoms, ions, or molecules in crystals would cause them to diffract X-rays, a hypothesis confirmed through experiments with copper sulfate and zinc sulfide...