Locally Addressable Energy Efficient Actuation of Magnetic Soft Actuator Array Systems

Advanced Science, Год журнала: 2023, Номер 10(24)

Опубликована: Июнь 17, 2023

Abstract Advances in magnetoresponsive composites and (electro‐)magnetic actuators have led to development of magnetic soft machines (MSMs) as building blocks for small‐scale robotic devices. Near‐field MSMs offer energy efficiency compactness by bringing the field source effectors close proximity. Current challenges near‐field MSM are limited programmability effector motion, dimensionality, ability perform collaborative tasks, structural flexibility. Herein, a new class is demonstrated that combines microscale thickness flexible planar coils with polymer effectors. Ultrathin manufacturing programming used tailor their response nonhomogeneous distribution on coil surface. The lift, tilt, pull, or grasp proximity each other. These ultrathin (80 µm) lightweight (100 gm −2 ) can operate at high frequency (25 Hz) low consumption (0.5 W), required use portable electronics.

Язык: Английский

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Progress in magneto-biopolymeric bionanoarchitectures for biomedical applications

International Journal of Polymeric Materials, Год журнала: 2024, Номер unknown, С. 1 - 22

Опубликована: Июль 8, 2024

Язык: Английский

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Optical and structural behavior of a magneto-polymer film obtained under low magnetic field exposure

Physica B Condensed Matter, Год журнала: 2025, Номер unknown, С. 416956 - 416956

Опубликована: Янв. 1, 2025

Язык: Английский

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Unlocking Atomic Degrees of Freedom in Liquid Metals for Accelerated Electrocatalytic Reactions

ACS Catalysis, Год журнала: 2025, Номер unknown, С. 3505 - 3514

Опубликована: Фев. 12, 2025

Язык: Английский

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4D Printed Butterfly-Inspired Hydrogel Structures: Simple Strategies for Multiform Morphing

ACS Materials Letters, Год журнала: 2025, Номер unknown, С. 1035 - 1041

Опубликована: Фев. 17, 2025

Язык: Английский

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Magnetically Controlled Chlorella‐Based Microrobots Loaded with Quercetin for Precision Treatment of Anteromedial Osteoarthritis

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Abstract Anteromedial osteoarthritis (AMOA) is characterized by progressive and irreversible cartilage damage in anteromedial knee joint, targeted therapies for it are lacking. To address this challenge, a magnetically controlled drug‐loaded microrobot developed based on Chlorella incorporated quercetin, named M‐CH@QUE, which designed precise drug delivery targeting AMOA. M‐CH@QUE not only alleviated OA symptoms but also protected the slowed progression of In vitro experiments demonstrated its excellent biocompatibility, drug‐loading capacity, sustained‐release properties, control flat surfaces joint using magnetic actuation system. addition, mechanisms explored underlying effects quercetin. It found that promoted cell protection enhancing insulin‐like growth factor 1 receptor (IGF1R) phosphorylation reducing intracellular oxidative stress. vivo revealed accumulated medial rats significantly effectively cartilage. After 6 12 weeks treatment, reduced both Osteoarthritis Research Society International (OARIS) score Mankin score. summary, innovative design offers an effective strategy alleviating AMOA slowing disease progression, thus presenting highly promising option treating

Язык: Английский

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Advances in Soft Mechanocaloric Materials

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Abstract The development of soft mechanocaloric materials is becoming increasingly important due to the growing demand for energy‐efficient and environmentally friendly thermoregulation solutions. Here effects in materials, which can convert mechanical energy into heat energy, discussed, their applications sensing, therapeutics, explored. It begins by introducing principles effect recent advances its study within materials’ systems. Then personalized healthcare sustainable Finally, importance identifying with high coefficients low manufacturing costs emphasized broaden applicability. Additionally, a comprehensive perspective on provided both heating cooling applications, emphasizing transformative potential various fields.

Язык: Английский

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Design, actuation, and functionalization of untethered soft magnetic robots with life-like motions: A review

Journal of Magnetism and Magnetic Materials, Год журнала: 2023, Номер 586, С. 171160 - 171160

Опубликована: Сен. 1, 2023

Язык: Английский

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Fabrication and characterization of a novel magnetic nanostructure based on pectin–cellulose hydrogel for in vitro hyperthermia during cancer therapy

RSC Advances, Год журнала: 2024, Номер 14(19), С. 13676 - 13684

Опубликована: Янв. 1, 2024

Herein, a new magnetic nanobiocomposite based on synthesized cross-linked pectin-cellulose hydrogel (cross-linked Pec-Cel hydrogel) substrate was designed and synthesized. The formation of the with calcium chloride agent its magnetization process caused efficient nanobiocomposite. Several spectral analytical techniques, including FTIR, SEM, VSM, TGA, XRD, EDX analyses, were performed to confirm characterize structural features (magnetic nanobiocomposite). Based SEM images, prepared Fe3O4 nanoparticles (MNPs) uniformly dispersed in context, representing an average particle size between 50.0 60.0 nm. XRD pattern also confirms crystallinity All constituent elements their distribution have been depicted analysis VSM curves confirmed superparamagnetic behavior MNPs saturation 77.31 emu g-1 48.80 g-1, respectively. thermal stability authenticated ca. 800 °C TGA thermogram. Apart from analyzing properties nanobiocomposite, different concentrations (0.5 mg mL-1, 1.0 2.0 5.0 10.0 mL-1) this nanostructure exposed alternating field (AMF) at frequencies (100.0 MHz, 200.0 300.0 400.0 MHz) evaluate capacity for vitro hyperthermia process; addition, highest specific absorption rate (126.0 W g-1) obtained by least concentration mL-1).

Язык: Английский

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Moisture-Sensitive Fe₂O₃ Nanoparticle-Based Magnetic Soft Actuators

ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Авг. 30, 2024

Multifunctional soft robots are emerging as a new-generation intelligent device for challenging environments. To meet the requirements of smart applications and robotics, developing actuator capable multiple functions mechanical deformation is essential. In this study, we designed free-standing magnetic constructed from iron oxide (Fe2O3) nanoparticles poly(vinyl alcohol) (PVA), that responds to both moisture fields. We used computational modeling (density functional theory ab initio molecular dynamics) explain experimental findings demonstrating high-bending angle (∼150°), which about twice large under combined field exposure compared their individual effect. Additionally, flower-shaped robot was by using continuous bending in response changes, performing directional an ambient environment. These demonstrate material's sensitivity fields, opening up new possibilities designing responsive structures industry.

Язык: Английский

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