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Related Concept Videos

Magnetic Force01:18

Magnetic Force

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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...
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Magnetic Force Between Two Parallel Currents01:13

Magnetic Force Between Two Parallel Currents

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Two long, straight, and parallel current-carrying conductors exert a force of equal magnitude on one another. The direction of the force depends on the current direction in the conductors.
The force exerted by the magnetic field due to the first conductor over a finite length of the second conductor is given as the product of the current in the second conductor and  the vector product of the length vector along the current element and the field due to the first conductor. According to the...
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Magnetic Force On A Current-Carrying Conductor01:25

Magnetic Force On A Current-Carrying Conductor

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Moving charges experience a force in a magnetic field. Since the magnetic fields produced by moving charges are proportional to the current, a conductor carrying a current creates a magnetic field around it.
Consider a compass placed near a current-carrying wire. The wire experiences a force that aligns the needle of the compass tangentially around the wire. Thus, the current-carrying wire produces concentric circular loops of magnetic field. The magnetic field generated by a wire can be...
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Magnetic Force On Current-Carrying Wires: Example01:22

Magnetic Force On Current-Carrying Wires: Example

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In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
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Force On A Current Loop In A Magnetic Field01:17

Force On A Current Loop In A Magnetic Field

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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...
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What is Genetic Engineering?00:49

What is Genetic Engineering?

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Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles
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Force-Mediating Magnetic Nanoparticles to Engineer Neuronal Cell Function.

Trevor J Gahl1, Anja Kunze1

  • 1Department of Electrical and Computer Engineering, Montana State University, Bozeman, MT, United States.

Frontiers in Neuroscience
|June 6, 2018
PubMed
Summary
This summary is machine-generated.

This review compares force-mediating nanoparticles for manipulating cellular processes. Nanomagnetics show promise for controlling cell migration and signaling, particularly in neurotherapeutics.

Keywords:
cell communicationcell guidancecell polarityintracellular forcesnanomagneticsnanoparticlesneurons

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Area of Science:

  • Biophysics
  • Cell Biology
  • Nanotechnology

Background:

  • Cellular functions like migration and signaling are influenced by mechanical forces.
  • Nanoparticles in field gradients can precisely manipulate these forces at the nanoscale.

Purpose of the Study:

  • To compare different force-mediating nanoparticle tools for cellular manipulation.
  • To focus on applications in neuronal cells and neurotherapeutics.

Main Methods:

  • Review of existing literature on force-mediating nanoparticles (electrical, magnetic, optical).
  • Analysis of force sensation and control mechanisms in cellular processes.
  • Discussion of technical limitations and recent advancements.

Main Results:

  • Different force-mediating tools have varying suitability for cell migration versus cell signaling.
  • Nanomagnetic approaches offer significant advancements in cell organization, communication, signaling, and trafficking.

Conclusions:

  • Force-mediating nanoparticles offer precise control over cellular functions.
  • Nanomagnetics present a promising avenue for future neurotherapeutic strategies.