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

Colloids03:22

Colloids

21.0K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.0K
Colloids and Suspensions01:17

Colloids and Suspensions

3.4K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.4K
Colloidal precipitates01:09

Colloidal precipitates

6.5K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
6.5K
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
Light as Energy01:35

Light as Energy

95.9K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
95.9K
Molecules and Compounds02:38

Molecules and Compounds

68.5K
Atoms and Molecules
68.5K

You might also read

Related Articles

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

Sort by
Same author

MD simulations of charged binary mixtures reveal a generic relation between high- and low-temperature behavior.

The Journal of chemical physics·2021
Same author

Inertial effects of self-propelled particles: From active Brownian to active Langevin motion.

The Journal of chemical physics·2020
Same author

Clustering-induced velocity-reversals of active colloids mixed with passive particles.

The Journal of chemical physics·2020
Same author

Chemical Physics of Active Matter.

The Journal of chemical physics·2019
Same author

Phase diagram of two-dimensional colloids with Yukawa repulsion and dipolar attraction.

The Journal of chemical physics·2019
Same author

Which interactions dominate in active colloids?

The Journal of chemical physics·2019
Same journal

A data-driven modeling study on the accurate identification of Doppler-free saturated absorption spectra in diatomic tellurium (130Te2).

The Journal of chemical physics·2026
Same journal

Anharmonic phonons via quantum thermal bath simulations.

The Journal of chemical physics·2026
Same journal

Quantum simulation of alignment dependent differential cross sections in co-propagating molecular beams at cold collision energies.

The Journal of chemical physics·2026
Same journal

Non-additive ion effects on the coil-globule equilibrium of a generic polymer in aqueous salt solutions.

The Journal of chemical physics·2026
Same journal

Insights into the unexpected small reduction of the temperature of maximum density of water by lithium chloride addition.

The Journal of chemical physics·2026
Same journal

Optical frequency comb double-resonance spectroscopy of the 9030-9175 cm-1 states of ethylene.

The Journal of chemical physics·2026
See all related articles

Related Experiment Video

Updated: Jan 28, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.4K

Light-controlled assembly of active colloidal molecules.

Falko Schmidt1, Benno Liebchen2, Hartmut Löwen2

  • 1Department of Physics, University of Gothenburg, SE-41296 Gothenburg, Sweden.

The Journal of Chemical Physics
|March 10, 2019
PubMed
Summary
This summary is machine-generated.

Researchers created active molecules from immotile microspheres using laser light. These light-controlled active materials exhibit complex behaviors like migration and rotation, offering new ways to design active matter.

More Related Videos

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

11.2K
Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
14:22

Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation

Published on: April 11, 2014

15.6K

Related Experiment Videos

Last Updated: Jan 28, 2026

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.4K
Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles
11:13

Creating Sub-50 Nm Nanofluidic Junctions in PDMS Microfluidic Chip via Self-Assembly Process of Colloidal Particles

Published on: March 13, 2016

11.2K
Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
14:22

Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation

Published on: April 11, 2014

15.6K

Area of Science:

  • Soft Matter Physics
  • Active Matter Systems
  • Biophysics

Background:

  • Active matter exhibits complex self-assembly forbidden in equilibrium systems.
  • Controlling active self-assembly typically requires engineering individual motile components.

Purpose of the Study:

  • To develop a novel route for controlling active self-assembly.
  • To engineer active molecules with emergent dynamic behaviors using external stimuli.

Main Methods:

  • Utilized laser light to control the binding of immotile microspheres.
  • Combined experimental studies with computational simulations.
  • Investigated two-species systems of microspheres.

Main Results:

  • Demonstrated emergent activity in assembled structures (active molecules).
  • Observed complex behaviors including migration, spinning, and rotation.
  • Showcased light-controllable nonreciprocal interactions driving assembly dynamics.

Conclusions:

  • Activity can emerge from the collective behavior of immotile units under specific binding conditions.
  • Light-based control offers a new paradigm for designing and understanding active materials.
  • This approach provides insights into living matter principles and inspires novel active material design.