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相关概念视频

Determination of Crystal Structures01:29

Determination of Crystal Structures

135
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...
135

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相关实验视频

Updated: May 2, 2026

Genetic Barcoding with Fluorescent Proteins for Multiplexed Applications
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在单个上转换晶体中多色条形编码.

Yuhai Zhang1, Lixin Zhang, Renren Deng

  • 1Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543, Singapore.

Journal of the American Chemical Society
|March 21, 2014
PubMed
概括
此摘要是机器生成的。

研究人员使用六角相化 (NaYF4) 上转化微棒开发了新的多色发光晶体. 这种方法使得用于防伪和多重标签应用的独特光学条形码成为可能.

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Multiplexed Barcoding Image Analysis for Immunoprofiling and Spatial Mapping Characterization in the Single-Cell Analysis of Paraffin Tissue Samples
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Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy
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科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术纳米技术
  • 光子学是指光子学的使用方法.

背景情况:

  • 上转化纳米粒子 (UCNPs) 提供独特的光学特性.
  • 在单一的UCNP中控制多色辐射仍然是一个挑战.
  • 六角相NaYF4微棒为控制生长提供了一个有希望的模板.

研究的目的:

  • 为了合成新的多色带带发光晶体.
  • 探索这些晶体作为光学条形码的潜力.
  • 开发一种简单的方法,在单晶体内进行多色调.

主要方法:

  • 兰化物激活的UCNP在NaYF4微棒上经过长轴端生长.
  • 通过变化激活剂成分进行格拉姆尺度合成.
  • 使用1D微棒作为模板来控制晶体生长.

主要成果:

  • 成功合成了多色带的NaYF4上转化微石晶体.
  • 实现了这些新型发光材料的克尺度生产.
  • 在单个晶体内展示了易于多色调的多色调,这在传统的UCNPs中是不可能的.

结论:

  • 开发的自下而上的方法为多色发光晶体提供了一个可扩展的途径.
  • 这些新的晶体适用于先进的应用,如光学条形码.
  • 终端增长战略为纳米材料的多颜色排放控制提供了一种独特的方法.