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Related Concept Videos

Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

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 – the...
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Recrystallization: Solid–Solution Equilibria

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...
Crystal Field Theory - Octahedral Complexes02:58

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Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

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Updated: Jun 17, 2026

Growing Protein Crystals with Distinct Dimensions Using Automated Crystallization Coupled with In Situ Dynamic Light Scattering
09:15

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Published on: August 14, 2018

New approaches on crystallization under electric fields.

Zoubida Hammadi1, Stéphane Veesler

  • 1Centre Interdisciplinaire de Nanosciences de Marseille, CNRS, Aix-Marseille Université, CINAM-UPR3118, Campus de Luminy, Case 913, 13288 Marseille Cedex, France.

Progress in Biophysics and Molecular Biology
|December 23, 2009
PubMed
Summary
This summary is machine-generated.

Electric fields accelerate protein crystallization by reducing nucleation time and crystal count. This method yields larger, potentially higher-quality protein crystals for research applications.

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Area of Science:

  • Biophysics
  • Materials Science
  • Crystallography

Background:

  • Protein crystallization is crucial for structural biology.
  • Controlling nucleation and growth is key to obtaining high-quality crystals.
  • Electric fields offer a novel approach to influence crystallization processes.

Purpose of the Study:

  • To review the current advancements in protein crystallization under electric fields.
  • To discuss the impact of Direct Current (DC) and Alternative Current (AC) on protein nucleation and crystal growth.
  • To analyze the mechanisms behind electric field-induced changes in crystallization.

Main Methods:

  • Review of existing literature on electric field-assisted protein crystallization.
  • Analysis of experimental setups involving both external and internal electric field applications.
  • Discussion of Direct Current (DC) and Alternative Current (AC) methodologies.

Main Results:

  • Electric fields significantly decrease nucleation time.
  • A reduction in the overall number of protein crystals is observed.
  • The resulting crystals are often larger and may exhibit improved quality.
  • Competing effects influence nucleation and growth dynamics.

Conclusions:

  • Electric fields provide a viable method to enhance protein crystallization.
  • Optimized electric field parameters can lead to larger and better-quality protein crystals.
  • Understanding the competing effects is essential for harnessing electric fields in protein crystallography.