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

Intermolecular Forces03:13

Intermolecular Forces

72.0K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
72.0K
Molecular Shape and Polarity03:37

Molecular Shape and Polarity

76.0K
Dipole Moment of a Molecule
76.0K
Intermolecular Forces in Solutions02:28

Intermolecular Forces in Solutions

40.0K
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,...
40.0K
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

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

51.7K
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...
51.7K
Intermolecular vs Intramolecular Forces03:00

Intermolecular vs Intramolecular Forces

97.8K
Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
97.8K
Electromotive Force02:36

Electromotive Force

30.3K
Electricity is generated by either electrons or ions flowing through a solution or a conducting medium. This flow of electrons or specifically electrical charge is defined as an electric current. When electrons move through a wire, they generate an electric current. It can be recalled  that in a redox reaction, electrons are lost and gained. In the spontaneous redox reaction of zinc  with copper, when zinc is immersed in a copper ion solution, a transfer of electrons from one substance to...
30.3K

You might also read

Related Articles

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

Sort by
Same author

Glyco-Ligated Binders to Lectins: Multivalency vs Specificity.

The journal of physical chemistry. B·2026
Same author

Anomalous ultrafast lithium-ion transport through boron nitride nanotube membranes.

Nature nanotechnology·2026
Same author

Revealing Phase-Dependent Catalytic Behavior of Ru Nanoparticles via Operando TEM.

Nature communications·2026
Same author

Hybrid atomistic-parametric decoherence model for molecular spin qubits.

The Journal of chemical physics·2026
Same author

Ion-Size Controlled Non-Classical Crystallization of Metal-Oxide Nanoparticles Covered with a Few Highly Charged Ligands.

Journal of the American Chemical Society·2026
Same author

Visible light photocatalytic ammonia production on single Cu entities attached to nitrogen-deficient functionalized BN sheets.

Nanoscale·2026

Related Experiment Video

Updated: Feb 13, 2026

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
07:18

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

7.1K

Nanoparticle Interactions Guided by Shape-Dependent Hydrophobic Forces.

Shu Fen Tan1,2,3, Sanoj Raj4, Geeta Bisht1,2

  • 1Department of Physics, National University of Singapore, Singapore, 117551, Singapore.

Advanced Materials (Deerfield Beach, Fla.)
|March 15, 2018
PubMed
Summary
This summary is machine-generated.

Nanoparticle shape dictates self-assembly forces. Hydrophobic interactions, not just van der Waals forces, drive nanocube assembly via specific face-to-face or edge-to-edge pathways, enabling new nanomaterial design.

Keywords:
hydrophobic interactionsin situ transmission electron microscopynanoparticlesself-assemblyvan der Waals forces

More Related Videos

Flash NanoPrecipitation for the Encapsulation of Hydrophobic and Hydrophilic Compounds in Polymeric Nanoparticles
10:12

Flash NanoPrecipitation for the Encapsulation of Hydrophobic and Hydrophilic Compounds in Polymeric Nanoparticles

Published on: January 7, 2019

23.6K
Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier
10:16

Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier

Published on: February 8, 2017

8.0K

Related Experiment Videos

Last Updated: Feb 13, 2026

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
07:18

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Published on: June 14, 2019

7.1K
Flash NanoPrecipitation for the Encapsulation of Hydrophobic and Hydrophilic Compounds in Polymeric Nanoparticles
10:12

Flash NanoPrecipitation for the Encapsulation of Hydrophobic and Hydrophilic Compounds in Polymeric Nanoparticles

Published on: January 7, 2019

23.6K
Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier
10:16

Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier

Published on: February 8, 2017

8.0K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Physical Chemistry

Background:

  • Nanoparticle (NP) self-assembly is complex, driven by various interactions.
  • The time-dependent mechanisms guiding NP self-assembly remain poorly understood.
  • Understanding shape-dependent forces is crucial for controlling assembly.

Purpose of the Study:

  • To investigate how nanoparticle shape influences the forces governing self-assembly.
  • To elucidate the time-dependent mechanisms of hydrophobic nanoparticle interactions.
  • To compare assembly behaviors across different gold nanoparticle shapes.

Main Methods:

  • In situ transmission electron microscopy (TEM) for real-time imaging.
  • Atomistic modeling for detailed force analysis.
  • Comparative study of gold nanospheres, nanocubes, nanorods, and nanobipyramids.

Main Results:

  • Hydrophobic interaction strength varies with nanoparticle shape and surface overlap.
  • For nanocubes, hydrophobic interactions are more significant than van der Waals forces, promoting oriented attachment.
  • Two distinct nanocube attachment pathways were observed: pre-alignment or post-attachment alignment.

Conclusions:

  • Nanoparticle shape is a critical factor in determining self-assembly dynamics and interaction forces.
  • Hydrophobic interactions play a key role in the assembly of specific shapes like nanocubes.
  • Findings provide a framework for designing advanced self-assembled nanomaterials based on shape control.