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

Formal Charges02:42

Formal Charges

40.7K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.7K
Ions and Ionic Charges03:27

Ions and Ionic Charges

79.4K
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...
79.4K
Atomic Radii and Effective Nuclear Charge03:08

Atomic Radii and Effective Nuclear Charge

62.3K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.3K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

26.8K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
26.8K
Ionic Bonding and Electron Transfer02:48

Ionic Bonding and Electron Transfer

49.5K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions. 
49.5K
Electric Charges01:11

Electric Charges

23.2K
From lightning during thunderstorms to electronic devices, the phenomenon of electromagnetism is all around us. The electromagnetic force is one of the four fundamental forces of nature. It has been known to humanity in various forms for thousands of years. For example, the ancient Greek philosopher Thales of Miletus recorded his experiments on static electricity using amber and fur in the sixth century BC.
The English physicist William Gilbert studied the phenomenon of static electricity in...
23.2K

You might also read

Related Articles

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

Sort by
Same author

Halogen Bonding-Sustained Accumulation of Polyiodide in Hierarchically Open Micellar Film for Shuttle-Free Long-Duration Zn-I<sub>2</sub> Battery.

Angewandte Chemie (International ed. in English)·2026
Same author

Surface-initiated living crystallization-driven self-assembly: from precision nanofabrication to functional interfaces.

Chemical Society reviews·2026
Same author

Water-Soluble Micelles with a Polyferrocenylsilane Core for Reductive Synthesis of Nanomaterials.

Journal of the American Chemical Society·2026
Same author

Micellar Brush-Directed Oxophilic Zr-Doped RuO<sub>2</sub> Nanoarrays for Durable Acidic Oxygen Evolution Reaction.

Angewandte Chemie (International ed. in English)·2025
Same author

Uniform Rectangular Conjugated Polymer Platelet Micelles via One-Step Crystallization-Driven Nucleation-Growth.

Journal of the American Chemical Society·2025
Same author

Uniform conjugated polymer rectangular platelets exhibiting long-range exciton diffusion.

Nature materials·2025
Same journal

Axially Chiral Cross-Shaped Bianthracene Architectures With Chiroptical Activity and Electrochemical Polymerization.

Chemistry, an Asian journal·2026
Same journal

Recent Advances in Direct Single Oxygen Atom Insertion Into Organic Frameworks.

Chemistry, an Asian journal·2026
Same journal

High Entropy Metal Organic Framework Incorporated 2D Ti<sub>3</sub>C<sub>2</sub>T<sub>X</sub> MXene for Supercapacitor Application.

Chemistry, an Asian journal·2026
Same journal

Designing Visible Light-Induced Intra- and Inter-module Single-Crystal-to-Single-Crystal [2+2] Photodimerizations in a Binary Organic Salt: Regulating Slow Versus Fast Crack Generation.

Chemistry, an Asian journal·2026
Same journal

Electrosynthesis of Chlorine Oxidant From Direct Seawater Electrolysis via High-Entropy Intermetallic.

Chemistry, an Asian journal·2026
Same journal

Mechanical Stability of Flexible Perovskite Solar Cells: Research Progress, Characterization, Challenges, and Future Perspectives.

Chemistry, an Asian journal·2026
See all related articles

Related Experiment Video

Updated: Feb 11, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K

Multi-Responsive Supramolecular Gels Based on Charge Transfer Interactions.

Chen Li1,2,3, Chengshuo Shen1, Jiucheng Nie1

  • 1School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China.

Chemistry, an Asian Journal
|April 18, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed purple supramolecular gels from donor-acceptor molecules. These gels respond visibly to specific solvents and acids, showing potential as chemical sensors.

Keywords:
charge transferdonor-acceptor systemsgelsmulti-responsiveself-assembly

More Related Videos

Quantification of the Abundance and Charging Levels of Transfer RNAs in Escherichia coli
10:34

Quantification of the Abundance and Charging Levels of Transfer RNAs in Escherichia coli

Published on: August 22, 2017

9.8K
Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro
10:01

Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro

Published on: April 8, 2020

6.4K

Related Experiment Videos

Last Updated: Feb 11, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K
Quantification of the Abundance and Charging Levels of Transfer RNAs in Escherichia coli
10:34

Quantification of the Abundance and Charging Levels of Transfer RNAs in Escherichia coli

Published on: August 22, 2017

9.8K
Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro
10:01

Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro

Published on: April 8, 2020

6.4K

Area of Science:

  • Supramolecular Chemistry
  • Materials Science
  • Chemical Sensing

Background:

  • Donor-acceptor (D-A) molecules are crucial for charge-transfer interactions.
  • Supramolecular gels offer unique self-assembled structures with tunable properties.
  • Developing sensitive and visible chemical detectors remains an important challenge.

Purpose of the Study:

  • To investigate the co-assembly of aromatic donor and acceptor molecules into supramolecular gels.
  • To explore the responsiveness of these gels to various solvents and chemical stimuli.
  • To evaluate the potential of these D-A gels as visual chemical sensors.

Main Methods:

  • Co-assembly of aromatic donor and acceptor molecules.
  • Solvophobic interactions to induce gel formation.
  • Testing gel stability and dissociation in the presence of nonpolar and polar solvents.
  • Assessing the response to specific chemical agents like trifluoroacetic acid and trimethylamine.

Main Results:

  • Formation of purple, sponge-like supramolecular gels via charge-transfer and solvophobic interactions.
  • Gels exhibit stability in nonpolar solvents (up to 23% v/v) but dissociate in polar solvents (<2% v/v) with distinct color changes.
  • Highly sensitive and reversible responses observed with methanol, trifluoroacetic acid, and trimethylamine.

Conclusions:

  • The developed D-A gels demonstrate a strong, visible response to chemical environments.
  • The gels can be utilized as potential detectors for sensing complex chemical conditions.
  • The reversible nature of the gel's response suggests applications in reusable sensing devices.