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

1.2K
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...
1.2K
Torque On A Current Loop In A Magnetic Field01:13

Torque On A Current Loop In A Magnetic Field

4.7K
The most common application of magnetic force on current-carrying wires is in electric motors. These consist of loops of wire, which are placed between the magnets with a magnetic field. When current flows through the loops, the magnetic field applies torque, which causes the shaft to rotate, thus converting electrical energy to mechanical energy.
Consider a rectangular current-carrying loop containing N turns of wire, placed in a uniform magnetic field. The net force on a current-carrying loop...
4.7K
Mechanical Efficiency of Real Machines01:14

Mechanical Efficiency of Real Machines

864
The mechanical efficiency of a machine is a fundamental concept that describes how effectively a machine can convert input work into output work. According to this concept, the efficiency of a machine is equal to the ratio of the output work to the input work. An ideal machine, meaning a machine that has no energy losses, has an efficiency of one. This implies that the input work and the output work are equal.
However, in reality, no machine can be truly ideal, and all of them experience some...
864
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

379
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
379
Mechanical Systems01:22

Mechanical Systems

291
Mechanical systems are analogous to to electrical networks where springs and masses play similar roles to inductors and capacitors, respectively. A viscous damper in mechanical systems functions similarly to a resistor in electrical networks, dissipating energy. The forces acting on a mass in such systems include an applied force in the direction of motion, counteracted by forces from the spring, a viscous damper, and the mass's acceleration. This interplay of forces is mathematically...
291
Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

3.4K
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,...
3.4K

You might also read

Related Articles

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

Sort by
Same author

Charge localization, rectification, and transport in electrolyte patchy nanochannels.

Faraday discussions·2026
Same author

Active spin model for cell assemblies on 1D substrates.

Physical review. E·2026
Same author

Phase Separation in a Chiral Active Fluid of Inertial Self-Spinning Disks.

Physical review letters·2026
Same author

Plug flow down to the nanoscale can induce partial solidification of confined fluids.

Soft matter·2026
Same author

Confinement-induced collective motion in suspensions of run-and-tumble particles.

The Journal of chemical physics·2026
Same author

Structural and dynamic anomalous properties of TIP4P/2005 water at extreme pressures.

The Journal of chemical physics·2026

Related Experiment Video

Updated: Sep 13, 2025

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
08:59

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators

Published on: June 13, 2022

2.7K

Colloidal Model for Investigating Optimal Efficiency in Weakly Coupled Ratchet Motors.

José Martín-Roca1, Laura Izquierdo Solis2, Fernando Martínez Pedrero2

  • 1Universidad Complutense de Madrid, Departamento de Estructura de la Materia, Física Térmica y Electrónica, 28040 Madrid, Spain.

Physical Review Letters
|July 31, 2025
PubMed
Summary

Superparamagnetic colloidal particles move along tracks using magnetic fields. Optimal transport depends on particle size, frequency, track roughness, and potential asymmetry, enabling micro- and nanomotor development.

More Related Videos

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

3.4K
Biophysical Characterization of Flagellar Motor Functions
06:08

Biophysical Characterization of Flagellar Motor Functions

Published on: January 18, 2017

8.3K

Related Experiment Videos

Last Updated: Sep 13, 2025

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
08:59

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators

Published on: June 13, 2022

2.7K
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

3.4K
Biophysical Characterization of Flagellar Motor Functions
06:08

Biophysical Characterization of Flagellar Motor Functions

Published on: January 18, 2017

8.3K

Area of Science:

  • Colloidal science
  • Soft matter physics
  • Nanotechnology

Background:

  • Investigating directed transport of colloidal particles is crucial for micro- and nanomotor development.
  • Ratchet mechanisms, driven by asymmetric potentials or fields, are a key strategy for achieving directed motion.
  • Superparamagnetic particles offer tunable magnetic properties for controlled manipulation.

Purpose of the Study:

  • To model and investigate the transport of superparamagnetic colloidal particles along self-assembled tracks using a periodically applied magnetic field.
  • To identify key factors influencing transport efficiency in a magnetic ratchet system.
  • To explore strategies for enhancing particle transport for potential applications.

Main Methods:

  • Utilized video microscopy to observe particle movement.
  • Employed computer simulations to model particle dynamics and analyze transport parameters.
  • Systematically varied parameters such as particle size ratios, actuation frequency, track roughness, and potential asymmetry.

Main Results:

  • Achieved processive motion of superparamagnetic colloidal particles without requiring residual attraction.
  • Identified optimal transport efficiency dependent on particle size ratios, actuation frequency, track roughness, and potential asymmetry.
  • Demonstrated that weak residual attraction and alternating magnetic fields can further enhance transport efficiency.

Conclusions:

  • Periodic magnetic fields can effectively drive superparamagnetic colloidal particles along tracks, mimicking ratchet mechanisms.
  • Transport efficiency is highly sensitive to a combination of physical and actuation parameters.
  • Findings offer insights for designing efficient synthetic micro- and nanomotors for applications like drug delivery and environmental remediation.