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

Habitat Fragmentation02:31

Habitat Fragmentation

21.2K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
21.2K
Mass Spectrometry: Alkene Fragmentation00:59

Mass Spectrometry: Alkene Fragmentation

3.6K
Alkenes lose one electron from the unsaturated π bond upon ionization and form stable molecular ions. Further fragmentation of alkenes occurs through three different reaction pathways. The most prominent fragmentation is the cleavage at the allylic position. The resultant allylic carbocation is resonance stabilized. In the mass spectra of terminal alkenes, this fragment appears at a mass-to-charge ratio of 41. In the internal alkenes, where there are two choices of allylic cleavage, the...
3.6K
Mass Spectrometry: Cycloalkane Fragmentation01:05

Mass Spectrometry: Cycloalkane Fragmentation

2.2K
In mass spectrometry, cycloalkanes exhibit distinct fragmentation patterns due to the inherent stability of their molecular ions compared to linear or branched alkanes. The ring structure of cycloalkanes provides additional stability to the molecular ions, often resulting in prominent ion peaks in the mass spectrum.
For example, cyclohexane molecular ions have a mass-to-charge ratio (m/z) of 84, which tends to produce a stronger signal than linear alkanes like hexane. This stability comes from...
2.2K
Mass Spectrometry: Cycloalkene Fragmentation00:54

Mass Spectrometry: Cycloalkene Fragmentation

1.5K
The molecular ions of cycloalkenes undergo fragmentation via a retro-Diels–Alder reaction.
1.5K
Mass Spectrometry: Alkyne Fragmentation00:53

Mass Spectrometry: Alkyne Fragmentation

2.1K
The fragmentation of alkynes preferentially occurs at the carbon–carbon bond between the α and β carbon of the alkyne bond to generate a 3-propynyl cation (or propargyl cation). In terminal alkynes, there is the only type of fragmentation that yields the 3-propynyl cation. The unsubstituted 3-propynyl cation exhibits a peak at a mass-to-charge ratio of 39. In internal alkynes, the 3-propynyl cation is substituted. For example, 2-pentyne fragments into methyl-substituted 3-propynyl cation,...
2.1K
Mass Spectrometry: Alcohol Fragmentation01:03

Mass Spectrometry: Alcohol Fragmentation

4.4K
Alcohols (R-OH) ionize to lose one non-bonded electron from the oxygen atom, forming molecular ions. Due to their tendency to fragment rapidly, the intensity of the molecular ion peak in the mass spectrum is weak or sometimes absent. The fragmentation patterns for alcohols occur in two ways, i.e. ⍺-cleavage and dehydration. During ⍺-cleavage, the bond at the ⍺-position adjacent to the hydroxyl group cleaves to give a resonance-stabilized cation and a radical. However, intramolecular...
4.4K

You might also read

Related Articles

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

Sort by
Same author

The quasi-liquid layer thickness controls clathrate hydrates' growth rate.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Unsupervised Classification of Local Clathrate Hydrate Structures.

The journal of physical chemistry. C, Nanomaterials and interfaces·2026
Same author

Structure-transport relations for Li+ ions at the electrolyte/polymer interface from classical molecular dynamics.

The Journal of chemical physics·2025
Same author

Effect of Surfactant Mixtures on the Evaporation Rate of Aqueous Sessile Droplets from Slightly Hydrophobic Substrates.

Langmuir : the ACS journal of surfaces and colloids·2025
Same author

New Coarse-Grained Models to Describe the Self-Assembly of Aqueous Aerosol-OT.

The journal of physical chemistry. B·2025
Same author

Wettability of Chemically Heterogeneous Clay Surfaces: Correlation between Surface Defects and Contact Angles as Revealed by Machine Learning.

ACS applied materials & interfaces·2025
Same journal

Engineered Young Brown Adipose Tissue-Derived Exosomes Alleviate Radiation-Induced Lung Injury by Promoting G Protein-Coupled Receptor 183 Ubiquitination.

ACS nano·2026
Same journal

Pore Geometry-Driven Capture of Trace Aromatic Volatile Organic Compounds in Al-Based MOFs.

ACS nano·2026
Same journal

Dual-Bridged Porphyrin-Based Covalent Organic Framework with Integrated Specific Fluorescent Recognition and Cooperative Adsorption Capabilities.

ACS nano·2026
Same journal

Split-Gate Memtransistors for Energy-Efficient Adaptive Reinforcement Learning.

ACS nano·2026
Same journal

Interface Coordination Nucleation of Copper Nanoclusters on Covalent Organic Frameworks for Electrocatalytic Ammonia Synthesis.

ACS nano·2026
Same journal

High-Performance Near-Infrared Quantum Emission from Color Centers in hBN.

ACS nano·2026
See all related articles

Related Experiment Video

Updated: Jan 21, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
11:52

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

3.9K

Nanoparticles Actively Fragment Armored Droplets.

François Sicard1, Jhoan Toro-Mendoza2, Alberto Striolo3

  • 1Department of Chemistry , King's College London , SE1 1DB London , United Kingdom.

ACS Nano
|August 2, 2019
PubMed
Summary
This summary is machine-generated.

Solid nanoparticles act as nanoscale razors, driving self-fragmentation in emulsions without external energy. This finding is key for intercellular communication and multiphase flow processes.

Keywords:
accelerated dynamics simulationemulsion dropletfree-energynanoparticleself-fragmentation

More Related Videos

The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
10:01

The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform

Published on: September 27, 2016

8.0K
Harmonic Nanoparticles for Regenerative Research
09:23

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

12.1K

Related Experiment Videos

Last Updated: Jan 21, 2026

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro
11:52

Evaluation of Antimicrobial Activities of Nanoparticles and Nanostructured Surfaces In Vitro

Published on: April 21, 2023

3.9K
The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform
10:01

The Visual Colorimetric Detection of Multi-nucleotide Polymorphisms on a Pneumatic Droplet Manipulation Platform

Published on: September 27, 2016

8.0K
Harmonic Nanoparticles for Regenerative Research
09:23

Harmonic Nanoparticles for Regenerative Research

Published on: May 1, 2014

12.1K

Area of Science:

  • Colloid and Surface Science
  • Mechanistic Biology
  • Computational Physics

Background:

  • Understanding fragmentation processes is crucial for intercellular communication and multiphase flow.
  • Self-fragmentation of emulsions offers an energy-efficient method for creating micro- and nanodroplets.

Purpose of the Study:

  • To investigate self-fragmentation in solid-particle-stabilized emulsion nanodroplets.
  • To elucidate the role of particle surface features and finite-size effects in droplet breakup.

Main Methods:

  • Mesoscopic modeling
  • Accelerated dynamics simulations
  • Analysis of droplet shape evolution and particle interface dynamics.

Main Results:

  • Finite-size nanoparticles actively participate in the necking breakup process.
  • Nanoparticles function as nanoscale "razors," influencing droplet fragmentation.
  • Particle characteristics significantly impact the system's thermodynamic properties.

Conclusions:

  • Solid nanoparticles play a critical role in emulsion self-fragmentation.
  • Findings have implications for designing multifunctional biomaterials and modulating biological signaling pathways.