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相关概念视频

Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

5.7K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
5.7K
Recrystallization: Solid–Solution Equilibria01:10

Recrystallization: Solid–Solution Equilibria

4.5K
Recrystallization is a purification technique used to separate impurities from solid compounds. In this technique, no chemical reactions occur. Instead, it exploits physical properties only, specifically, the solubility differences between the desired compound and impurities, either at a single temperature or at different temperatures, and under other selected conditions. The solid-solution equilibrium (solubility equilibrium) of each component in the solution represents a binary phase...
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相关实验视频

Updated: Mar 18, 2026

Improving the Success Rate of Protein Crystallization by Random Microseed Matrix Screening
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Improving the Success Rate of Protein Crystallization by Random Microseed Matrix Screening

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生物分子结晶通过软模板和播种.

Jerry Heng1, Vivek Verma2, Hamish Mitchell1

  • 1Chemical Engineering, Imperial College London, London, UK.

Advances in biochemical engineering/biotechnology
|March 17, 2026
PubMed
概括

播种策略通过克服核化能量障碍来增强宏分子结晶. 这些使用种子或模板的方法显著提高了晶体质量和复杂生物分子的产量.

科学领域:

  • 生物化学 生物化学
  • 晶体学 晶体学是指结晶学.
  • 材料科学 材料科学 材料科学

背景情况:

  • 大分子结晶对于结构生物学来说至关重要,但由于分子灵活性而具有挑战性.
  • 传统的方法 (冷却,蒸发) 往往无法通过克服高核化能量障碍来诱导结晶.

研究的目的:

  • 审查种植和模板策略的进展,以改善宏分子结晶.
  • 阐明在宏分子晶体生长中播种和模板化的基础机制.

主要方法:

  • 使用宏分子晶体种子.
  • 使用溶解的添加剂 (软模板).
  • 使用未溶解的添加剂 (硬模板).

主要成果:

  • 播种显著降低了核化的能量屏障.
  • 策略利用功能组匹配,表层和地形效应.
  • 最近的进步已经大大提高了结晶成功率.

结论:

  • 播种和模板对于高质量的宏分子晶体生成至关重要.
  • 这些技术对于推进复杂生物分子的结构确定是必不可少的.

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Derivatization of Protein Crystals with I3C using Random Microseed Matrix Screening
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Derivatization of Protein Crystals with I3C using Random Microseed Matrix Screening

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  • 对于复杂的系统,需要对净化协议进行进一步的研究.