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

Electro-mechanical Systems01:19

Electro-mechanical Systems

1.8K
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
1.8K
Microtubule Associated Motor Proteins01:32

Microtubule Associated Motor Proteins

11.4K
Eukaryotic cells have different motor proteins for transporting various cargo within the cell. These motor proteins differ based on the filament they associate with, the direction they move within the cell, and the type of cargo they transport. Motor proteins that associate with microtubules are known as microtubule-associated motor proteins. There are two families of microtubule-associated motor proteins —Kinesins and Dyneins. Both these proteins assist in the transport of cellular...
11.4K
Mechanism of Ciliary Motion01:05

Mechanism of Ciliary Motion

5.7K
The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...
5.7K
Mechanism of Ciliary Motion01:05

Mechanism of Ciliary Motion

2.6K
2.6K
Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

4.5K
Magnetic forces on wires carrying current are most frequently applied in motors. A DC motor is a device that converts electrical energy into mechanical work. In motors, wire loops are enclosed in a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate. The direction of the current is reversed once the loop's surface area is lined up with the magnetic field, causing a constant torque on the loop. During the process, commutators...
4.5K
Motor Units00:46

Motor Units

62.7K
A motor unit consists of two main components: a single efferent motor neuron (i.e., a neuron that carries impulses away from the central nervous system) and all of the muscle fibers it innervates. The motor neuron may innervate multiple muscle fibers, which are single cells, but only one motor neuron innervates a single muscle fiber.
62.7K

You might also read

Related Articles

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

Sort by
Same author

Negative marginal densities in mixed quantum-classical Liouville dynamics.

The Journal of chemical physics·2026
Same author

Technology Roadmap of Micro/Nanorobots.

ACS nano·2025
Same author

Dynamics of quantum-classical systems in nonequilibrium environments.

The Journal of chemical physics·2025
Same author

Revisiting the full blood count: Circulating blood cells and their role in coagulation.

British journal of haematology·2024
Same author

Restoring discarded porcine lungs by ex vivo removal of neutrophil extracellular traps.

The Journal of heart and lung transplantation : the official publication of the International Society for Heart Transplantation·2024
Same author

Fibrinogen binding to histones in circulation protects against adverse cellular and clinical outcomes.

Journal of thrombosis and haemostasis : JTH·2024

Related Experiment Video

Updated: Mar 20, 2026

Preparation and 3D Tracking of Catalytic Swimming Devices
06:50

Preparation and 3D Tracking of Catalytic Swimming Devices

Published on: July 1, 2016

8.0K

A microscopic model for chemically-powered Janus motors.

Mu-Jie Huang1, Jeremy Schofield, Raymond Kapral

  • 1Chemical Physics Theory Group, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada. mjhuang@chem.utoronto.ca jmschofi@chem.utoronto.ca rkapral@chem.utoronto.ca.

Soft Matter
|June 1, 2016
PubMed
Summary

Microscopic models of synthetic Janus motors reveal complex behaviors. Simulations of these tiny chemical machines provide insights into their propulsion and interactions, crucial for future applications in materials science and medicine.

More Related Videos

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

12.2K
Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.9K

Related Experiment Videos

Last Updated: Mar 20, 2026

Preparation and 3D Tracking of Catalytic Swimming Devices
06:50

Preparation and 3D Tracking of Catalytic Swimming Devices

Published on: July 1, 2016

8.0K
Light-driven Molecular Motors on Surfaces for Single Molecular Imaging
08:40

Light-driven Molecular Motors on Surfaces for Single Molecular Imaging

Published on: March 13, 2019

12.2K
Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics
09:10

Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics

Published on: August 25, 2022

3.9K

Area of Science:

  • Physics and Chemistry of Nanomaterials
  • Chemical Engineering and Applied Chemistry

Background:

  • Synthetic motors utilizing chemical reactions offer potential in materials science and medicine.
  • Janus motors, with distinct catalytic and noncatalytic sides, are key subjects in active matter research.
  • Existing continuum models simplify motor dynamics, potentially overlooking crucial microscopic interactions.

Purpose of the Study:

  • To construct and analyze a microscopic model for Janus motor diffusiophoretic propulsion.
  • To investigate the dynamics of single and multiple Janus motors using first-principles simulations.
  • To compare simulation results with theoretical predictions and assess the limitations of continuum theories.

Main Methods:

  • Development of a microscopic model for Janus motors, considering only hard collisions for environmental interactions.
  • Execution of microscopic simulations for both individual and collective Janus motor behavior.
  • Analysis of simulation data to understand motor dynamics, concentration gradients, and fluid flow.

Main Results:

  • The study successfully models diffusiophoretic propulsion of Janus motors at a microscopic level.
  • Simulations illustrate the cooperative phenomena and complex dynamics arising from many-body interactions.
  • Comparison with theoretical predictions validates the microscopic model and highlights areas where continuum theories may fall short.

Conclusions:

  • Microscopic models are essential for a comprehensive understanding of synthetic motor behavior, accounting for factors neglected by continuum theories.
  • This work provides a foundation for assessing the validity of approximate theories and exploring the fundamental physics of active matter.
  • The developed model and simulations pave the way for designing and controlling synthetic motors for advanced applications.