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

You might also read

Related Articles

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

Sort by
Same author

From Targeted Synthesis to Serendipitous Discovery: Transforming Perfluorotoluene into Discotic Liquid Crystals and Dearomatized Spirofluorenes.

The Journal of organic chemistry·2026
Same author

Strategy for Ultranarrow Light Down-Conversion for Displays Based on Bicolor-Emitting 2D Colloidal Heterostructures.

Nano letters·2026
Same author

Evaporation-Induced Phase Transitions in Free-Standing Plasmonic Nanoparticle Assemblies.

Nano letters·2026
Same author

Epitaxy of ultrathin Fe<sub>3</sub>O<sub>4</sub> films on SrTiO<sub>3</sub>(001): influence of growth parameters on the formation of coexisting (111)- and (001)-oriented phases.

Journal of applied crystallography·2026
Same author

Reaction-Induced Restructuring of 2D MoS<sub>2</sub> to MoC<sub><i>x</i></sub> Nanoclusters for Selective Reverse Water-Gas Shift Reaction.

ACS applied materials & interfaces·2026
Same author

Correction to "Anomalous Absorption in Arrays of Metallic Nanoparticles: A Powerful Tool for Quantum Dot Optoelectronics".

Nano letters·2026

Related Experiment Video

Updated: Dec 30, 2025

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
08:09

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates

Published on: May 9, 2014

11.3K

From Chains to Monolayers: Nanoparticle Assembly Driven by Smectic Topological Defects.

Syou-P'heng Do1, Amine Missaoui1, Alessandro Coati2

  • 1Sorbonne Université, Faculté des Sciences, CNRS, Institut des Nano-Sciences de Paris (INSP), 4 pl Jussieu, 75005 Paris, France.

Nano Letters
|January 18, 2020
PubMed
Summary
This summary is machine-generated.

Advanced topological defects in smectic oily streaks guide gold nanospheres into aligned chains and hexagonal networks. This method offers a new route for creating highly anisotropic nanoparticle assemblies.

Keywords:
SmecticX-rayassemblydislocationsgoldnanoparticlesoily streakstopological defects

More Related Videos

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

19.5K
Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

13.1K

Related Experiment Videos

Last Updated: Dec 30, 2025

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
08:09

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates

Published on: May 9, 2014

11.3K
Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control
06:16

Fabrication of Spherical and Worm-shaped Micellar Nanocrystals by Combining Electrospray, Self-assembly, and Solvent-based Structure Control

Published on: February 11, 2018

19.5K
Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles
08:39

Liquid-cell Transmission Electron Microscopy for Tracking Self-assembly of Nanoparticles

Published on: October 16, 2017

13.1K

Area of Science:

  • Materials Science
  • Soft Matter Physics
  • Nanotechnology

Background:

  • Topological defects in liquid crystals (LCs) offer unique confinement properties.
  • Controlling nanoparticle (NP) assembly is crucial for advanced materials.
  • Smectic oily streaks present hierarchical structures with topological defects.

Purpose of the Study:

  • To investigate the sequential transfer of geometrical features from topological defects to gold nanospheres.
  • To explore the formation of aligned NP chains and hexagonal networks using different topological defects.
  • To establish a phase diagram for NP assembly driven by concentration and defect type.

Main Methods:

  • Utilizing 1D dislocations and 2D ribbon-like topological defects in smectic oily streaks.
  • Analyzing the trapping efficiency of different defect cores for gold nanospheres.
  • Observing NP assembly transitions from 1D chains to 2D hexagonal networks based on NP concentration and defect confinement.
  • Mapping the phase diagram of NP assembly.

Main Results:

  • Smectic dislocation cores exhibit superior trapping efficiency for NPs compared to other defect types.
  • Aligned NP chains form within dislocation cores, with confinement transitioning from 1D to 2D as NP concentration increases.
  • 2D topological defect cores induce planar hexagonal NP networks.
  • A phase diagram illustrates NP assembly behavior influenced by concentration and defect geometry.

Conclusions:

  • Topological defects in smectic oily streaks provide a versatile platform for directed NP assembly.
  • The method enables the creation of ordered 1D and 2D anisotropic NP networks.
  • This research opens possibilities for fabricating complex, coexisting NP assemblies within soft matter matrices.