Nanoparticle Magnetization
Nanoparticle Magnetization - Related Videos
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...
08:59
Fabrication of a Functionalized Magnetic Bacterial Nanocellulose with Iron Oxide Nanoparticles
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Cited by 42 •
2016
Here, we present a protocol to make a bacterial nanocellulose (BNC) magnetic for applications in damaged blood vessel reconstruction. The BNC was synthesized by G. xylinus strain. On the other hand, magnetization of the BNC was realized through in situ precipitation of Fe2+ and Fe3+ ferrous ions inside the BNC mesh.
03:43
Magnetofection-Based Transfection In Vitro: A Magnetic Field-Assisted Technique to Deliver Plasmids Into Primary Mouse Neuronal Cells Using Magnetic Nanoparticles
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2025
In this video, we demonstrate magnetically-guided transfection of plasmid DNA in primary neuronal cell culture. Magnetofection uses an external magnetic field to guide the delivery of plasmids bound to magnetic nanoparticles into cell cytoplasm.
07:40
Production of Metal Nanoparticles by Pulsed Laser-ablation in Liquids: A Tool for Studying the Antibacterial Properties of Nanoparticles
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Cited by 14 •
2017
The antimicrobial properties of metals such as copper and silver have been recognized for centuries. This protocol describes pulsed laser-ablation in liquids, a method of synthesizing metal nanoparticles that provides the ability to fine tune the properties of these nanoparticles to optimize their antimicrobial effects.
08:26
Cell Labeling and Targeting with Superparamagnetic Iron Oxide Nanoparticles
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Cited by 20 •
2015
Targeted cell delivery is useful in a variety of biomedical applications. The goal of this protocol is to use superparamagnetic iron oxide nanoparticles (SPION) to label cells and thereby enable magnetic cell targeting approaches for a high degree of control over cell delivery and localization.
FAQs
Particle size determines whether magnetic moments remain stable or are randomized by thermal motion. In sufficiently small particles, this produces superparamagnetic behavior: magnetization appears under an applied field but disappears when the field is removed. This distinction matters because it supports field-controlled movement without requiring persistent magnetization, helping researchers manage delivery and signal-generation behavior.
Composition influences how strongly particles respond to an applied magnetic field, while surface coating affects how the particles behave in biological settings. Together with particle size, these properties help researchers adjust field response, safety, and targeting. Optimizing them is therefore important when designing nanoparticles for imaging or treatment, where magnetic performance must align with the intended cancer research application.
During magnetic hyperthermia, an alternating magnetic field repeatedly changes the particles' magnetic response. The process produces localized heat near the nanoparticles, which can damage tumor cells. Particle properties and field response determine how effectively this heating occurs, so researchers examine magnetization behavior when evaluating whether a nanoparticle design can support localized treatment rather than relying only on magnetic movement or imaging.
Magnetized nanoparticles can generate signals that influence magnetic resonance imaging contrast, making regions containing the particles distinguishable. Their response to an applied field determines how effectively they contribute to this signal generation. In cancer research, this capability supports efforts to visualize tumors or particle distribution while researchers optimize size, composition, coating, and magnetic behavior for the intended imaging use.
Field-guided delivery relies on applying a magnetic field to influence nanoparticle movement toward a selected location. Superparamagnetic particles can respond while the field is present, allowing researchers to investigate directed therapeutic delivery. Surface coatings are important in this context because they contribute to targeting and safety, while particle composition and size help determine whether the magnetic response is suitable for guidance.
Researchers assess particle size, composition, surface coating, and response to applied magnetic fields as interconnected design factors. These measurements help relate the nanoparticle's magnetic behavior to imaging contrast, directed delivery, or heat generation. Comparing these properties with safety, targeting, and treatment performance allows investigators to select formulations whose physical characteristics match the intended cancer research outcome.