Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ion Exchange01:17

Ion Exchange

632
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
632
Analyte Adsorption and Distribution01:09

Analyte Adsorption and Distribution

714
In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...
714
Le Chatelier's Principle: Changing Volume (Pressure)02:32

Le Chatelier's Principle: Changing Volume (Pressure)

35.5K
For gas-phase equilibria, changes in the concentrations of reactants and products can occur with altered volume and pressure. The partial pressure, P, of an ideal gas is proportional to its molar concentration, M.
35.5K
Potential Due to a Polarized Object01:29

Potential Due to a Polarized Object

453
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
453

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Structural and Thermodynamic Discrimination between Agonists and Antagonists of Retinoic Acid Receptor γ and the Vitamin D Receptor.

Journal of chemical information and modeling·2026
Same author

Decoding Elastic, Plastic, and Elastic-Plastic Deformation in Aryl Benzoate Molecular Crystals via Substituent-Driven Interaction Hierarchies.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Ag-TiO<sub>2</sub> photocatalyst for the degradation of isoprinosine: influence of silver modification on solar photocatalytic activity.

Environmental science and pollution research international·2026
Same author

Editorial: The association between the nervous system and the stomatognathic system: from etiology to diagnosis and treatment of orofacial pain.

Frontiers in neurology·2026
Same author

Electromyographic activity of the orbicularis oris muscle in children with and without lip competence: A cross-sectional study.

Advances in clinical and experimental medicine : official organ Wroclaw Medical University·2026
Same author

<i>LamelODF</i>: a MATLAB-based toolbox for orientation distribution analysis and mapping of lamellar minerals for laboratory and synchrotron X-ray diffractometers.

Journal of applied crystallography·2026

Related Experiment Video

Updated: Aug 12, 2025

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5
09:46

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5

Published on: August 25, 2016

11.7K

Charge density redistribution with pressure in a zeolite framework.

Marcin Stachowicz1, Roman Gajda2, Agnieszka Huć3,2

  • 1Department of Geochemistry, Mineralogy and Petrology, Faculty of Geology, University of Warsaw, Żwirki i Wigury 93, 02-089, Warszawa, Poland. marcin.stachowicz@uw.edu.pl.

Scientific Reports
|January 28, 2023
PubMed
Summary

Quantum crystallography reveals how mineral ions change shape and volume under pressure. This study tracks electron density shifts in hsianghualite, offering new insights into Earth's mantle processes.

More Related Videos

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route
08:26

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route

Published on: April 3, 2016

13.4K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.5K

Related Experiment Videos

Last Updated: Aug 12, 2025

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5
09:46

Adsorption Device Based on a Langatate Crystal Microbalance for High Temperature High Pressure Gas Adsorption in Zeolite H-ZSM-5

Published on: August 25, 2016

11.7K
Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route
08:26

Synthesis of Zeolites Using the ADOR Assembly-Disassembly-Organization-Reassembly Route

Published on: April 3, 2016

13.4K
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
11:14

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

Published on: February 21, 2017

12.5K

Area of Science:

  • Mineralogy
  • Crystallography
  • Geophysics

Background:

  • Mineralogy traditionally relies on spherical atom models and ionic radii.
  • Quantum crystallography enables detailed electron density studies in minerals.

Purpose of the Study:

  • To apply quantum crystallography to high-pressure studies of hsianghualite up to 4.2 GPa.
  • To investigate electron density redistribution within ions under compression.

Main Methods:

  • High-pressure experiments using diamond anvil cells.
  • Application of quantum crystallography to analyze electron density changes.
  • Quantitative studies of ion volume and shape alterations.

Main Results:

  • Observed redistribution of electron density within and between ions under pressure.
  • Most ions decreased in volume, while silicon ions increased.
  • Cations contracted in bonding directions and expanded in nonbonding directions.

Conclusions:

  • Electron density changes can be traced at a high resolution (0.01 electrons/ų).
  • Quantum crystallography provides experimental access to mineral interactions and energetic features at high pressures.
  • This technique offers a new perspective for characterizing mineral behavior in the Earth's mantle.