Magnetic Guidance
Magnetic Guidance - Related Videos
10:14
Automated Robotic Dispensing Technique for Surface Guidance and Bioprinting of Cells
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Cited by 9 •
2016
This protocol describes a bioprinting methodology using an automated robotic depositing system that incorporates etched topographical guidance cues with the precision deposition of a cell bearing hydrogel bioink. The printed cells are directly delivered to the etched features and are able to sense and orientate with them.
10:30
Use of pHluorin to Assess the Dynamics of Axon Guidance Receptors in Cell Culture and in the Chick Embryo
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Cited by 10 •
2014
We describe here the use of a pH-sensitive green fluorescent protein variant, pHluorin, to study the spatio-temporal dynamics of axon guidance receptors trafficking at the cell surface. The pHluorin-tagged receptor is expressed both in cell culture and in vivo, using electroporation of the chick embryo.
07:47
Custom-designed Laser-based Heating Apparatus for Triggered Release of Cisplatin from Thermosensitive Liposomes with Magnetic Resonance Image Guidance
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Cited by 17 •
2015
AN MRI-compatible custom-designed laser-based heating apparatus has been developed to provide local heating of subcutaneous tumors in order to activate release of agents from thermosensitive liposomes specifically at the tumor region.
11:27
Magnetically-Assisted Remote Controlled Microcatheter Tip Deflection under Magnetic Resonance Imaging
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Cited by 10 •
2013
Current applied to an endovascular microcatheter with microcoil tip made by laser lathe lithography can achieve controllable deflections under magnetic resonance (MR) guidance, which may improve speed and efficacy of navigation of vasculature during various endovascular procedures.
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...
FAQs
A field gradient creates a spatial change in magnetic field strength, enabling a translational force that moves responsive material. By contrast, field orientation produces torque, a rotational effect that can turn or align particles, carriers, or engineered constructs. Separating these roles helps distinguish steering from alignment in experimental design.
Field orientation matters because torque changes how an object is positioned rather than simply where it is located. This distinction allows magnetic particles, carriers, or engineered constructs to be aligned, and it connects magnetic manipulation with controlled assembly. In bioengineering, such alignment can help researchers examine how spatial arrangement influences biological organization.
Magnetic guidance can address magnetic particles, carriers, and engineered constructs, as well as other magnetically responsive materials. The relevant outcome may be movement, positioning, alignment, or assembly, depending on how the external field is applied. This range makes the approach adaptable across delivery systems, tissue-engineering constructs, and microscale bioengineering platforms.
A basic workflow applies an external magnetic field to the selected magnetic or magnetically responsive material, then uses a field gradient for translation or field orientation for rotation and alignment. Researchers can thereby direct position, movement, or assembly without direct contact, creating a controllable basis for bioengineering experiments.
In targeted delivery, externally controlled movement can provide spatial direction for magnetic carriers without requiring direct contact with the material. The same principle supports minimally invasive procedures, where remote manipulation is valuable. The bioengineering relevance lies in linking field control to where a carrier or construct is positioned during an intervention.
Within tissue engineering, magnetic guidance can organize engineered constructs or responsive materials by steering or aligning them. In microscale systems, external manipulation supports controlled positioning and assembly. These applications let researchers investigate how spatial control affects biological organization and therapeutic performance, providing a way to study outcomes linked to arrangement and placement.