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

Ionic Crystal Structures02:42

Ionic Crystal Structures

17.0K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
17.0K
Crystal Growth: Principles of Crystallization01:25

Crystal Growth: Principles of Crystallization

5.0K
Crystallization is a phase transformation process in which crystals are precipitated from a supersaturated solution or formed from other sources. During crystallization, atoms or molecules arrange themselves into a well-defined, rigid crystal lattice to minimize energy.
Initiating crystallization involves manipulating the concentration of the solute and the temperature of the solution. Since crystal growth occurs when the ratio of concentration and solubility of the solute in the solvent...
5.0K
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

30.8K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
30.8K
Fixed Action Patterns01:06

Fixed Action Patterns

17.6K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.6K
Protein Complex Assembly02:41

Protein Complex Assembly

16.7K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.7K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

48.4K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
48.4K

You might also read

Related Articles

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

Sort by
Same author

Activity coefficients of aqueous electrolytes from implicit-water molecular dynamics simulations.

The Journal of chemical physics·2021
Same author

Phase separation vs aggregation behavior for model disordered proteins.

The Journal of chemical physics·2021
Same author

Vapor-liquid equilibrium of water with the MB-pol many-body potential.

The Journal of chemical physics·2021
Same author

Erratum: "Note: Smooth torsional potentials for degenerate dihedral angles" [J. Chem. Phys. 146, 226101 (2017)].

The Journal of chemical physics·2021
Same author

When do short-range atomistic machine-learning models fall short?

The Journal of chemical physics·2021
Same author

Molecular simulation of liquid-vapor coexistence for NaCl: Full-charge vs scaled-charge interaction models.

The Journal of chemical physics·2020

Related Experiment Video

Updated: Jan 31, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.5K

Directed assembly of photonic crystals through simple substrate patterning.

Wesley F Reinhart1, Athanassios Z Panagiotopoulos1

  • 1Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, USA.

The Journal of Chemical Physics
|January 10, 2019
PubMed
Summary

Patterned substrates improve self-assembly of crystalline films from Janus colloids for photonics. Lower particle flux yields higher quality crystals, enabling potential photonic bandgap applications.

More Related Videos

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.7K
Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
13:02

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

10.2K

Related Experiment Videos

Last Updated: Jan 31, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

19.5K
Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.7K
Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
13:02

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

10.2K

Area of Science:

  • Materials Science
  • Colloid Science
  • Photonics

Background:

  • Epitaxial growth of crystalline films is crucial for photonics applications.
  • Triblock Janus colloids offer unique self-assembly properties.
  • Controlling film morphology is key to achieving desired optical properties.

Purpose of the Study:

  • To investigate the epitaxial growth of crystalline films using triblock Janus colloids via molecular dynamics simulations.
  • To evaluate the impact of substrate patterning and particle flux on film quality and morphology.
  • To identify conditions for fabricating high-quality crystalline films for photonics.

Main Methods:

  • Molecular dynamics simulations were employed to model the self-assembly process.
  • Simulations were conducted on both featureless and patterned substrates.
  • The effect of varying particle flux on crystal growth was systematically studied.

Main Results:

  • On featureless substrates, two stacking polymorphs formed in equal proportions.
  • Patterned substrates, fabricated using photolithography, significantly enhanced grain size and selectivity for the photonically active polymorph.
  • Lower particle flux resulted in higher quality crystals, whereas higher flux led to smaller crystalline domains.

Conclusions:

  • Engineered, easily fabricated patterned substrates can greatly improve the self-assembly of crystalline films from Janus colloids.
  • Optimized particle flux is critical for achieving high-quality crystalline structures.
  • These findings suggest a pathway towards self-assembled single crystals suitable for photonic bandgap applications.