Magnetic Substrate
Magnetic Substrate - Related Videos
03:06
Growth and Differentiation of Magnetic Nano Particle-Loaded Neurons on Magnetic Platforms
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2025
This video demonstrates the uptake of fluorescent magnetic nanoparticles (MNPs) by the neuronal cells via endocytosis. Growing these MNP-loaded neurons on the magnetically patterned substrate enables the attachment of the cells. The addition of a growth factor containing medium aids in the growth of neuron extensions, while the magnetic field of the substrate directs the orientation of the extension.
13:58
Probing C84-embedded Si Substrate Using Scanning Probe Microscopy and Molecular Dynamics
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Cited by 1 •
2016
This paper reports the nanomaterial fabrication of a fullerene Si substrate inspected and verified by nanomeasurements and molecular dynamic simulation.
11:13
Identification of Kinase-substrate Pairs Using High Throughput Screening
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Cited by 1 •
2015
Protein phosphorylation is a central feature of how cells interpret and respond to information in their extracellular milieu. Here, we present a high throughput screening protocol using kinases purified from mammalian cells to rapidly identify kinases that phosphorylate a substrate(s) of interest.
10:04
Magnetic Fields
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2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN Magnetic fields can be generated by moving charges, such as an electrical current. The magnetic field generated by a current can be calculated from the Maxwell equation. In addition, magnetic objects such as bar magnets can also generate magnetic fields due to microscopic dynamics of charges inside the material. Magnetic fields will exert magnetic force on other moving...
04:16
A Magnetic Nanoparticle-Based Immunoassay Using a Microfluidic Device
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2025
This video demonstrates a microfluidic system for a magnetic nanoparticle-based immunoassay. The detection system utilizes a microfluidic device incorporating a magnetic trap within its channels. Pre-formed immunocomplexes, comprised of antigen-coated magnetic nanoparticles bound to primary and peroxidase-conjugated secondary antibodies, are introduced into the channels. The immunocomplexes become captured in the porous magnetic trap upon applying an external magnetic field. Using a fluorogenic...
FAQs
The applied field acts through magnetic components embedded in or patterned across the support surface. By repositioning those components or changing their local influence, researchers can modify physical cues at the material–cell interface without direct contact. This makes it possible to examine how neurons and glia respond to controlled environmental changes.
A substrate’s behavior depends on how its base material is combined with magnetic particles or arranged magnetic regions. These design choices determine where field-responsive effects occur and whether cues can be adjusted across the surface. Patterned arrangements are especially relevant when investigators want to relate spatially organized material signals to neurite extension or network organization.
Magnetic stimulation can provide a dynamic alternative to fixed surface properties or direct manipulation of cellular surroundings. Because the field can alter local cues without requiring physical contact, experiments can separate responses to changing mechanical or magnetic conditions from responses caused by handling the cells. This helps clarify how neurons and glia sense environmental signals.
A conceptual workflow begins by selecting a support material, incorporating magnetic particles or defining magnetic regions, and placing neural cells on the engineered surface. Researchers then apply a magnetic field to generate the intended local or dynamic cue and assess changes in adhesion, migration, neurite extension, or network organization. The comparison links substrate design and field exposure to cellular behavior.
These platforms are useful when an experiment requires tunable control over the cell interface rather than a single unchanging condition. In neural studies, investigators can examine whether field-responsive cues influence adhesion, migration, neurite growth, or cellular network organization. The observations can inform studies of environmental sensing and support strategies for neural tissue engineering.
Magnetic substrates support cell-patterning experiments by providing spatially arranged regions that can guide organization at the surface. In tissue-engineering contexts, their value lies in combining an engineered support with adjustable physical cues, allowing researchers to explore how neural cells organize under different material conditions. These experiments connect microscale interface design with broader tissue structure.