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

Aldehydes and Ketones with Amines: Imine Formation Mechanism01:23

Aldehydes and Ketones with Amines: Imine Formation Mechanism

6.3K
Imine formation involves the addition of carbonyl compounds to a primary amine. It begins with the generation of carbinolamine through a series of steps involving an initial nucleophilic attack and then several proton transfer reactions. The second part includes the elimination of water, as a leaving group, to give the imine.
Imines are formed under mildly acidic conditions. A pH of 4.5 is ideal for the reaction.
If the pH is low or the solution is too acidic, the reaction slows down in the...
6.3K
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

701
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...
701
Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview01:16

Aldehydes and Ketones with Amines: Imine and Enamine Formation Overview

5.0K
Primary amines react with carbonyl compounds—aldehydes and ketones—to generate imines. Imines consist of a C=N double bond and are named Schiff bases after its discoverer—the German chemist Hugo Schiff. On the other hand, secondary amines react with carbonyl compounds to give enamines. In enamines, the presence of a C=C double bond adjacent to the nitrogen atom leads to the delocalization of the lone pair.
5.0K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

518
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...
518
Ion Exchange01:17

Ion Exchange

642
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...
642
Basicity of Heterocyclic Aromatic Amines01:25

Basicity of Heterocyclic Aromatic Amines

6.2K
Heterocyclic amines, where the N atom is a part of an alicyclic system, are similar in basicity to alkylamines. Interestingly, the heterocyclic amine having a nitrogen atom as part of an aromatic ring has much less basicity than its corresponding alicyclic counterpart. For this reason, as presented in Figure 1, piperidine (pKb = 2.8) is significantly more basic than pyridine (pKb = 8.8).
6.2K

You might also read

Related Articles

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

Sort by
Same author

Body Composition Analysis in Young Patients with Recent Diagnosis of Multiple Sclerosis: An Exploratory Study.

Journal of clinical medicine·2026
Same author

A Unified Approach for the Synthesis of Conformationally Locked and sp<sup>2</sup>-sp<sup>3</sup> Fused Hybrids.

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

Microporous Polyamine (PIM-EA-TB) Modified with Hydrated NiMoO<sub>4</sub> Enhances the Photocatalytic Reduction of Nitrogen to Ammonia.

ACS applied engineering materials·2026
Same author

Multivariate sulfur-functionalized MOFs shaped into alginate spheres for robust and reusable multidye water remediation.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Chemiluminescence Detection of Hydrogen Peroxide with a Polymer of an Intrinsic Microporosity Solid State Emitter.

ACS applied polymer materials·2026
Same author

Mechano-metabolic feedback connects tissue fluidity to mitochondrial DNA-dependent immunity in breast cancer.

Nature communications·2026

Related Experiment Video

Updated: Aug 31, 2025

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

8.1K

CO2 Separation by Imide/Imine Organic Cages.

Sonia La Cognata1, Riccardo Mobili1, Chiara Milanese1

  • 1Department of Chemistry, University of Pavia, Viale Tarquato Taramelli 12, Pavia, 27100, Italy.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 22, 2022
PubMed
Summary

Novel organic cages enhance mixed-matrix membranes for efficient carbon dioxide (CO2) separation from nitrogen (N2) and methane (CH4). This advancement improves gas separation technology.

More Related Videos

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

10.9K
Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
08:00

Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture

Published on: September 29, 2023

2.6K

Related Experiment Videos

Last Updated: Aug 31, 2025

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
07:36

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

Published on: November 9, 2019

8.1K
Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

10.9K
Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture
08:00

Author Spotlight: Standardizing the Development of Amine-Based Silica Composites as CO2 Adsorbents for Direct Air Capture

Published on: September 29, 2023

2.6K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Separation Science

Background:

  • Mixed-matrix membranes (MMMs) are crucial for gas separation.
  • Developing efficient fillers for MMMs is key to improving selectivity.
  • Carbon dioxide (CO2) capture remains a significant environmental challenge.

Purpose of the Study:

  • To synthesize and characterize novel imide/imine organic cages.
  • To investigate the performance of these organic cages as fillers in MMMs.
  • To evaluate the selective separation of CO2 from nitrogen (N2) and methane (CH4).

Main Methods:

  • Synthesis of imide/imine organic cages.
  • Fabrication of mixed-matrix membranes incorporating the organic cages.
  • Gas permeation experiments to assess CO2/N2 and CO2/CH4 selectivity.

Main Results:

  • The novel organic cages were successfully synthesized.
  • MMMs containing these cages demonstrated enhanced CO2 permeability and selectivity.
  • Improved separation of CO2 from N2 and CH4 was achieved compared to conventional membranes.

Conclusions:

  • Imide/imine organic cages are effective fillers for MMMs.
  • This approach offers a promising strategy for advanced gas separation technologies.
  • The developed membranes show potential for industrial applications in CO2 capture.