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

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility

44.2K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
44.2K
Phase Transitions: Vaporization and Condensation02:39

Phase Transitions: Vaporization and Condensation

17.5K
The physical form of a substance changes on changing its temperature. For example, raising the temperature of a liquid causes the liquid to vaporize (convert into vapor). The process is called vaporization—a surface phenomenon. Vaporization occurs when the thermal motion of the molecules overcome the intermolecular forces, and the molecules (at the surface) escape into the gaseous state. When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase...
17.5K
Phase Transitions02:31

Phase Transitions

19.1K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
19.1K
Intermolecular Forces and Physical Properties02:56

Intermolecular Forces and Physical Properties

20.8K
20.8K
Intermolecular Forces in Solutions02:28

Intermolecular Forces in Solutions

33.2K
The formation of a solution is an example of a spontaneous process, a process that occurs under specified conditions without energy from some external source.
When the strengths of the intermolecular forces of attraction between solute and solvent species in a solution are no different than those present in the separated components, the solution is formed with no accompanying energy change. Such a solution is called an ideal solution. A mixture of ideal gases (or gases such as helium and argon,...
33.2K
Phase Diagram01:19

Phase Diagram

5.8K
The phase of a given substance depends on the pressure and temperature. Thus, plots of pressure versus temperature showing the phase in each region provide considerable insights into the thermal properties of substances. Such plots are known as phase diagrams. For instance, in the phase diagram for water (Figure 1), the solid curve boundaries between the phases indicate phase transitions (i.e., temperatures and pressures at which the phases coexist).
5.8K

You might also read

Related Articles

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

Sort by
Same author

Structured self-assembly of like-charged bridging nanoparticles driven by varying separation between two interfaces.

Journal of colloid and interface science·2026
Same author

Multiwavelength excitation confers synergistic upconversion effect from cooperative harvested energy transfer.

Chemical communications (Cambridge, England)·2025
Same author

Exploiting the upconversion luminescence, Lewis acid catalytic and photothermal properties of lanthanide-based nanomaterials for chemical and polymerization reactions.

Physical chemistry chemical physics : PCCP·2022
Same author

Unveiling Extreme Photoreduction Potentials of Donor-Acceptor Cyanoarenes to Access Aryl Radicals from Aryl Chlorides.

Journal of the American Chemical Society·2021
Same author

Electron Transfer Quenching of Rhodamine 6G by <i>N</i>-Methylpyrrole Is an Unproductive Process in the Photocatalytic Heterobiaryl Cross-Coupling Reaction.

The journal of physical chemistry. B·2021
Same author

NIR nanoprobe-facilitated cross-referencing manifestation of local disease biology for dynamic therapeutic response assessment.

Chemical science·2021

Related Experiment Video

Updated: Jun 24, 2025

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
12:37

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

12.3K

Revealing the Existence of Long-Range Liquid-Liquid Interfacial Potential in Phase-Transfer Processes.

Matthew J K Ow1, Edwin K L Yeow1

  • 1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.

The Journal of Physical Chemistry Letters
|June 6, 2024
PubMed
Summary

Single nanoparticles act as phase transfer catalysts (PTCs) at liquid interfaces. Their unique motion and extended interfacial potential enhance catalytic efficiency in reactions.

More Related Videos

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.1K
High-pressure Sapphire Cell for Phase Equilibria Measurements of CO2/Organic/Water Systems
05:46

High-pressure Sapphire Cell for Phase Equilibria Measurements of CO2/Organic/Water Systems

Published on: January 24, 2014

13.4K

Related Experiment Videos

Last Updated: Jun 24, 2025

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers
12:37

Phase Diagram Characterization Using Magnetic Beads as Liquid Carriers

Published on: September 4, 2015

12.3K
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
06:26

Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

Published on: May 15, 2017

7.1K
High-pressure Sapphire Cell for Phase Equilibria Measurements of CO2/Organic/Water Systems
05:46

High-pressure Sapphire Cell for Phase Equilibria Measurements of CO2/Organic/Water Systems

Published on: January 24, 2014

13.4K

Area of Science:

  • Physical Chemistry
  • Nanotechnology
  • Chemical Engineering

Background:

  • Phase transfer catalysis (PTC) is crucial for reactions involving immiscible phases.
  • Understanding nanoparticle behavior at liquid-organic interfaces is key to designing efficient catalysts.

Purpose of the Study:

  • To investigate the interfacial dynamics of nanoparticle-based phase transfer catalysts.
  • To elucidate the relationship between nanoparticle motion and catalytic efficiency.

Main Methods:

  • Utilized fluorescence wide-field microscopy to track single nanoparticle movement.
  • Employed a fluorescent silica nanoparticle functionalized with trioctylpropylammonium bromide as the phase transfer catalyst (PTC).
  • Introduced sodium hydroxide (NaOH) to induce interfacial emulsification.

Main Results:

  • Observed subdiffusive motion of single nanoparticles normal to the aqueous-organic interface.
  • Identified an extended interfacial potential well (several micrometers) influencing nanoparticle behavior.
  • Demonstrated that NaOH-induced emulsification creates a hybrid-solvent environment that solvates the PTC.
  • Found enhanced mobility and residence time of the PTC at the potential well.

Conclusions:

  • The extended interfacial potential and enhanced PTC solvation significantly improve interfacial phase transfer.
  • Nanoparticle dynamics at interfaces are critical for optimizing catalytic efficiency.