Actuation of magnetoelastic membranes in precessing magnetic fields

Brisbois, Chase Austyn; Tasinkevych, M.; Vázquez-Montejo, Pablo; Cruz, Mónica Olvera de la

doi:10.1073/pnas.1816731116

Cited by 30 publications

(21 citation statements)

References 31 publications

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“…Such concepts may find applications in areas that range from wound care to dentistry [ 136 ]. Current trends focus on increasing the magnetic sensitivity of the embedded particles as well as exploring the wide space of combined chemical and mechanical activity [ 116 , 137 , 138 ].…”

Section: Movementmentioning

confidence: 99%

Magnetic Nanoparticles in Biology and Medicine: Past, Present, and Future Trends

et al. 2021

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The use of magnetism in medicine has changed dramatically since its first application by the ancient Greeks in 624 BC. Now, by leveraging magnetic nanoparticles, investigators have developed a range of modern applications that use external magnetic fields to manipulate biological systems. Drug delivery systems that incorporate these particles can target therapeutics to specific tissues without the need for biological or chemical cues. Once precisely located within an organism, magnetic nanoparticles can be heated by oscillating magnetic fields, which results in localized inductive heating that can be used for thermal ablation or more subtle cellular manipulation. Biological imaging can also be improved using magnetic nanoparticles as contrast agents; several types of iron oxide nanoparticles are US Food and Drug Administration (FDA)-approved for use in magnetic resonance imaging (MRI) as contrast agents that can improve image resolution and information content. New imaging modalities, such as magnetic particle imaging (MPI), directly detect magnetic nanoparticles within organisms, allowing for background-free imaging of magnetic particle transport and collection. “Lab-on-a-chip” technology benefits from the increased control that magnetic nanoparticles provide over separation, leading to improved cellular separation. Magnetic separation is also becoming important in next-generation immunoassays, in which particles are used to both increase sensitivity and enable multiple analyte detection. More recently, the ability to manipulate material motion with external fields has been applied in magnetically actuated soft robotics that are designed for biomedical interventions. In this review article, the origins of these various areas are introduced, followed by a discussion of current clinical applications, as well as emerging trends in the study and application of these materials.

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Section: Movementmentioning

confidence: 99%

Magnetic Nanoparticles in Biology and Medicine: Past, Present, and Future Trends

et al. 2021

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“…Superlattices of magnetic nanoparticles (NPs) have enabled studies of the magnetic morphogenesis of materials, [1,2] microrobots, [3,4] and nanoscale magnetic phenomena. [5][6][7][8][9] Typically, when assembled in a magnetic field, the structures of these superlattices result from a balance of surface ligand and magnetic dipole coupling interactions.…”

mentioning

confidence: 99%

Probing the Consequences of Cubic Particle Shape and Applied Field on Colloidal Crystal Engineering with DNA

et al. 2020

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In a magnetic field, cubic Fe3O4 nanoparticles exhibit assembly behavior that is a consequence of a competition between magnetic dipole–dipole and ligand interactions. In most cases, the interactions between short hydrophobic ligands dominate and dictate assembly outcome. To better tune the face‐to‐face interactions, cubic Fe3O4 nanoparticles were functionalized with DNA. Their assembly behaviors were investigated both with and without an applied magnetic field. Upon application of a field, the tilted orientation of cubes, enabled by the flexible DNA ligand shell, led to an unexpected crystallographic alignment of the entire superlattice, as opposed to just the individual particles, along the field direction as revealed by small and wide‐angle X‐ray scattering. This observation is dependent upon DNA length and sequence and cube dimensions. Taken together, these studies show how combining physical and chemical control can expand the possibilities of crystal engineering with DNA.

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“…Detailed analysis of spatial deformable magnetic membranes has been provided by multiple literatures. [ 36,37 ]…”

Section: Resultsmentioning

confidence: 99%

Reconfigurable Flexible Electronics Driven by Origami Magnetic Membranes

Zhou

et al. 2021

Adv Materials Technologies

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Deformation of flexible electronics can lead to reconfigurable electrical properties, controllable deployment, and tunable working modes, but approaches to actuate flexible electronics are quite limited. A promising method involves using magnetic fields to yield simple displacement of magnetic membranes. However, realization of complex multiaxial bending and rotations of magnetic membranes remains challenging. Here, flexible origami magnetic membranes with programmable magnetic polarities are used to generate complex spatial deformation through coupling with an external magnetic field and interaction among intrinsic magnetism. The membranes can work as standalone flexible actuators and serve as substrates to trigger spontaneous deformation of the carrying flexible devices such as antennas, energy harvesters, and light‐emitting diode arrays. The membranes can travel on a dry surface or in a liquid environment. They also exhibit the capability to reversibly capture and release objects traveling at 326 mm s–1. Flexible devices on the membranes can offer tunable gains and frequencies as well as novel folding and releasing mechanisms determined by the complex magnetic polarities of the underneath membranes. The origami magnetic membranes can be combined to yield more complicate patterns and magnetic polarities, leading to innovative applications in surgical robots, tunable antennas, and various reconfigurable flexible electronics.

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Actuation of magnetoelastic membranes in precessing magnetic fields

Cited by 30 publications

References 31 publications

Magnetic Nanoparticles in Biology and Medicine: Past, Present, and Future Trends

Magnetic Nanoparticles in Biology and Medicine: Past, Present, and Future Trends

Probing the Consequences of Cubic Particle Shape and Applied Field on Colloidal Crystal Engineering with DNA

Reconfigurable Flexible Electronics Driven by Origami Magnetic Membranes

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