Related Experiment Video
Updated: May 2, 2026

07:42
Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
Published on: July 20, 2022
2.5K
Manipulation of micro- and nanostructure motion with magnetic fields
Roger S M Rikken1, Roeland J M Nolte, Jan C Maan
1High Field Magnet Laboratory (HFML), Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands. p.christianen@science.ru.nl.
Soft Matter
|March 22, 2014
Summary
Magnetic fields can control micro- and nanostructures in solution. This review explores manipulating diamagnetic materials, opening new applications for soft matter.
Area of Science:
- Physics
- Materials Science
- Biotechnology
Background:
- Magnetic fields offer precise control over micro- and nanostructures in solution.
- Research has primarily utilized ferromagnetic and paramagnetic materials for magnetic manipulation.
- Soft matter, prevalent in biological and chemical systems, is predominantly diamagnetic.
Purpose of the Study:
- To review the manipulation of micro- and nanostructures using magnetic fields.
- To differentiate between ferromagnetic, paramagnetic, and diamagnetic materials in magnetic manipulation.
- To highlight the potential of magnetic manipulation for diamagnetic materials and soft matter.
Main Methods:
- Discussion of homogeneous, inhomogeneous, and rotating magnetic fields.
- Analysis of magnetic properties of different material types (ferromagnetic, paramagnetic, diamagnetic).
- Review of existing literature on magnetic manipulation techniques.
Main Results:
- Magnetic fields can effectively manipulate micro- and nanostructures in solution.
- Diamagnetic materials, often overlooked, show significant potential for magnetic manipulation.
- The application of magnetic fields to diamagnetic soft matter is a promising area for future research.
Conclusions:
- Magnetic manipulation offers versatile control over micro- and nanostructures.
- Expanding manipulation techniques to diamagnetic materials broadens the scope of applications, especially for soft matter.
- This review underscores the potential for novel applications in manipulating biological and chemical systems.
Related Concept Videos
Magnetic Fields
6.0K
A moving charge or a current creates a magnetic field in the surrounding space, in addition to its electric field. The magnetic field exerts a force on any other moving charge or current that is present in the field. Like an electric field, the magnetic field is also a vector field. At any position, the direction of the magnetic field is defined as the direction in which the north pole of a compass needle points.
A magnetic field is defined by the force that a charged particle experiences...
A magnetic field is defined by the force that a charged particle experiences...
6.0K
Ferromagnetism
2.8K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.8K
Motion Of A Charged Particle In A Magnetic Field
6.5K
A charged particle experiences a force when moving through a magnetic field. Consider the field to be uniform and the charged particle to move perpendicular to it. If the field is in a vacuum, the magnetic field is the dominant factor determining the motion. Since the magnetic force is perpendicular to the direction of motion, a charged particle follows a curved path. The particle continues to follow this curved path until it forms a complete circle. Another way to look at this is that the...
6.5K
Atomic Nuclei: Magnetic Resonance
1.2K
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
1.2K
Magnetic Force
2.4K
In addition to the electric forces between electric charges, moving electric charges exert magnetic forces on each other. A magnetic field is created by a moving charge or a group of moving charges known as the electric current. A magnetic force is experienced by a second current or moving charge in response to this magnetic field. Fundamentally, interactions between moving electrons in the atoms of two bodies produce magnetic forces between them.
The magnetic force acting on a moving charge...
The magnetic force acting on a moving charge...
2.4K
Magnetism
8.2K
Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
8.2K

