Magnetic Device Cartridge
Magnetic Device Cartridge - Related Videos
03:31
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04:16
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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...
08:04
Use of a Filter Cartridge for Filtration of Water Samples and Extraction of Environmental DNA
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Cited by 133 •
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We describe a protocol for filtration of water samples with a filter cartridge and extraction of environmental DNA (eDNA) without having to cut open the housing to remove the filter. This protocol is developed for metabarcoding eDNA from fishes, but is also applicable to eDNA from other organisms.
13:29
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This protocol describes the step-by-step process to build both electrical and magnetic stimulators used to stimulate biological tissues. The protocol includes a guideline to simulate computationally electric and magnetic fields and manufacture of stimulator devices.
08:29
Thermal Measurement Techniques in Analytical Microfluidic Devices
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Cited by 6 •
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Here, we present three protocols for thermal measurements in microfluidic devices.
FAQs
Magnetic field gradients create differences in magnetic force across the cartridge, allowing responsive particles or internal components to move toward or away from selected regions. By changing the location or strength of the field, the system can guide, position, or separate materials within an enclosed pathway. This controlled movement supports compact fluid handling and sample-processing functions.
Magnetic attraction can draw responsive material toward a magnetic element, while repulsion can help move it away or maintain separation. These forces provide noncontact control, so internal movement does not require a direct mechanical connection to every component. Selecting the appropriate magnetic interaction helps the cartridge perform positioning, separation, or actuation tasks within its enclosed structure.
Material compatibility affects whether the magnetic elements, cartridge contents, and surrounding components function reliably together. The magnetic behavior of the incorporated materials must suit the intended movement or separation task, while the cartridge materials must support the operating environment. Poor compatibility can interfere with control, reduce consistency, or limit use in diagnostic testing and sample preparation.
Reliable performance depends on the magnetic behavior of the cartridge and the conditions under which its fields act on materials or internal components. Field strength, field gradients, material response, and the arrangement of magnetic elements can influence positioning and separation. Considering these factors helps maintain predictable operation when the cartridge handles samples, fluids, or controlled delivery tasks.
A typical workflow places the relevant sample, fluid, or responsive material within the cartridge-based system, then uses the device's magnetic elements to guide, position, separate, or actuate components. The enclosed cartridge performs the required handling without direct mechanical contact. After operation, the replaceable format can support consistent processing and simplify device maintenance.
Medical and laboratory applications can include diagnostic testing, sample preparation, fluid handling, and controlled delivery. The cartridge format is useful when these functions must occur in a compact, enclosed system. Magnetic control can help organize or move materials during processing, while the device structure supports a defined workflow without requiring extensive exposed mechanical handling.
Standardized, replaceable cartridges can improve workflow consistency by presenting a repeatable device format for magnetic processing. Their enclosed operation may reduce contamination risk, and replacement can simplify maintenance compared with managing permanent internal components. These advantages are especially relevant when diagnostic or laboratory procedures require reliable handling of samples and fluids across repeated uses.