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

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

1.1K
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
1.1K
Capillary Electrophoresis: Applications01:30

Capillary Electrophoresis: Applications

1.2K
Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
1.2K
Ion Exchange01:17

Ion Exchange

1.1K
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...
1.1K
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

1.8K
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
1.8K
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

1.6K
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
1.6K

You might also read

Related Articles

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

Sort by
Same author

Growth-Coupled Assembly of Hydrogen-Bonded Organic Framework Membranes on Cell Surfaces.

Journal of the American Chemical Society·2026
Same author

Associated Factors for Cesarean Section in Pregnant Women with Gestational Diabetes Mellitus.

International journal of women's health·2026
Same author

Combined Effect of <i>Bifidobacterium longum</i> Postbiotics and Dietary Herbs on Ameliorating Metabolic Disturbances in Hyperlipidemic Mice.

Foods (Basel, Switzerland)·2026
Same author

Anode-pressurized water electrolysis with modulated anion exchange membrane architecture.

Nature communications·2026
Same author

Water-Induced Dynamic Structural Adaptivity of Zr-MOF for Holistic Metrics Optimization in Atmospheric Water Harvesting.

Journal of the American Chemical Society·2026
Same author

From economic crop to high-value product: Fermentation of chestnut protein by Lactobacillus rhamnosus ameliorates chronic inflammation via the gut microbiota-SCFAs axis.

International journal of food microbiology·2026

Related Experiment Video

Updated: Jan 14, 2026

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.4K

Metal-Organic Frameworks with Enhanced Electret Capability for Selective Electrostatic Separation.

Haiwei Liu1, Jie Li1, Shuang Zhao1

  • 1Ministry of Education Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Frontiers Science Center for High Energy Materials, School of Chemistry and Chemical Engineering, Advanced Technology Research Institute (Jinan), Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology; Beijing 100081, P. R. China.

Journal of the American Chemical Society
|October 25, 2025
PubMed
Summary
This summary is machine-generated.

Defect-engineered zeolitic imidazolate frameworks enhance electret performance for efficient electrostatic separation. This strategy improves charge density and retention, enabling advanced applications in bioseparation and material recovery.

More Related Videos

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
10:27

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

10.5K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.6K

Related Experiment Videos

Last Updated: Jan 14, 2026

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.4K
Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
10:27

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

10.5K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.6K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Separation Science

Background:

  • Electrostatic separation is crucial for bioseparation, energy conversion, and water treatment.
  • Achieving high charge density and stable charge retention in electrets for electrostatic separation remains a challenge.
  • Zeolitic imidazolate frameworks (ZIFs) offer potential due to their ordered structures and functional groups.

Purpose of the Study:

  • To develop high-performance electrets for enhanced electrostatic separation by incorporating defect-engineered ZIFs into a polymer matrix.
  • To investigate the effect of structural defects in ZIFs on charge density, charge retention, and electrostatic separation efficiency.
  • To demonstrate the practical application of these electrets in selective adsorption of biomolecules.

Main Methods:

  • Incorporation of defect-engineered zeolitic imidazolate frameworks (ZIFs) into a polymer matrix.
  • Utilizing electrostatic polarization to inject and trap charges in the composite electret material.
  • Characterization of electret properties, including surface potential retention and charge dissipation.
  • Evaluation of the adsorption capability and selectivity for low-density lipoprotein (LDL) in a serum matrix.

Main Results:

  • The composite electret film with defective ZIF-8 exhibited enhanced charge density and significantly improved charge retention, retaining 97.4% of its surface potential after 14 days.
  • The material demonstrated a high adsorption capacity of 487.6 mg/g for electropositive low-density lipoprotein (LDL).
  • An excellent LDL/high-density lipoprotein (HDL) selectivity ratio of 63.5 was achieved in serum, surpassing existing materials.
  • The developed electret material showed excellent biosafety.

Conclusions:

  • Introducing structural defects into ZIFs and incorporating them into polymer matrices via electrostatic polarization is an effective strategy to create high-performance electrets.
  • This defect-induced enhancement significantly improves charge density and retention, leading to superior electrostatic separation capabilities.
  • The developed material shows great promise for advanced electrostatic adsorbent applications, including selective biomolecule separation and potentially DNA purification and lithium extraction.