Deterministic domain wall rotation in a strain mediated FeGaB/PMN-PT asymmetrical ring structure for manipulating trapped magnetic nanoparticles in a fluidic environment

Pathak, Pankaj; Yadav, Vinit Kumar; Mallick, Dhiman

doi:10.1039/d3ra00150d

Cited by 7 publications

(2 citation statements)

References 65 publications

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“…22 These devices have enormous potentials, such as drug dilution and diffusion, cell cultivation, and cell-based testing, owing to their assimilation of numerous chemotherapeutic agent gradient generators with a cellbased compartment. [23][24][25][26] Despite significant advancements, such devices lack an external controlling source for precisely manipulating drug loaded magnetic nanoparticle (DMN), i.e., limiting the potential for magnetic drug screening. 27,28 Therefore, fabricating a magnetic microfluidic device to compartmentalize and quantify magnetic drugs in various concentrations and control doses precisely over time needs immediate attention.…”

Section: Introductionmentioning

confidence: 99%

A magnetically controlled microfluidic device for concentration dependent in vitro testing of anticancer drug

Yadav,

Ganguly,

Mishra

et al. 2023

Lab Chip

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Section: Introductionmentioning

confidence: 99%

A magnetically controlled microfluidic device for concentration dependent in vitro testing of anticancer drug

Yadav,

Ganguly,

Mishra

et al. 2023

Lab Chip

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“…[38,39] Additionally, magnetoelectric (ME)-based devices generate electrical energy from remotely applied magnetic fields, and have been extensively reported by several researchers for WPT applications. [40][41][42] These WPT often include bulk composites or thin films of bilayer and multilayer structures comprising both magnetostrictive and piezoelectric materials. [43][44][45] The application of a remote magnetic field induces in-plane strain within the magnetostrictive layer, thereby exerting stress on the connected piezoelectric layer.…”

mentioning

confidence: 99%

Magnetoelectric Core–Shell Nanoparticle–Based Wearable Hybrid Energy Harvesters for Biomedical Applications

Murali,

Mukherjee,

Das

et al. 2023

Adv Eng Mater

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In this work, a novel barium titanate–coated cobalt ferrite core–shell magnetoelectric nanoparticle and poly(3,4‐ethylenedioxythiophene): polystyrene sulfonate–based wearable energy‐harvesting patch for wireless power‐transfer applications are proposed. The developed flexible patch has unique ease of fabrication and high‐efficiency energy conversion capability from the magnetic field and mechanical motion to the electric field as compared to bulk or thin‐film‐based devices. This unique power‐transfer capability of this device is achieved due to the crystalline nature of fabricated nanoparticles, which is confirmed using X‐ray diffraction and high‐resolution transmission electron microscopy. This wearable patch can generate a high voltage of 560 mV when exposed to a 40 μT alternating magnetic field at the resonance frequency of 48.6 kHz. The hybrid mode of electric power generation is achieved by coupling bodily motion with the remotely applied alternating magnetic field (40 μT), which results in the generation of a higher electric potential of 860 mV and maximum power density of 0.458 mW cm−3 across a 10 kΩ load. The maximum magnetoelectric coefficient is recorded as 1300 mV cm−1 Oe−1. The flexible nature and hybrid operation of the proposed device make it an efficient alternative for powering a wide range of wearable medical electronic devices.

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Infrared-driven pyroelectric effect in magnetoelectric sensor for suspended on-chip magnetic nanoparticles quantification

Pathak

Yadav

Das

et al. 2023

Applied Physics Letters

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Precise and real-time quantification of suspended magnetic nanoparticles (MNPs) is essential for augmenting the efficacy of the present MNP-based lab-on-a-chip systems. Existing MNP quantification techniques use bulky external electromagnets, which make such techniques expensive, energy-inefficient, and result in significant side effects on the surrounding healthy tissues. Here, we report on the development of an infrared-driven, Ni/lead magnesium niobate–lead titanate (PMN–PT) magnetoelectric (ME) heterostructure-based sensor that enables rapid assessment of the suspended MNPs in a fluidic environment without using an external magnetic field. The injected MNPs are captured by the generated magnetic field gradient of the Ni thin film. Subsequently, the optothermal-pyroelectric property of the underlying PMN–PT layer is utilized to quantitatively assess the MNPs' concentration. Under the incident infrared pulse at zero bias voltage, the device shows different transient photocurrent responses against varied MNP concentrations with a sensitivity of [Formula: see text] and a response time of less than 2 s. Such a ME device can improve the efficacy of current ME-based lab-on-a-chip systems, where a single device can capture, manipulate, as well as quantitatively assess the MNPs efficiently for critical biomedical applications such as drug delivery, drug regulation, and hyperthermia.

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Deterministic domain wall rotation in a strain mediated FeGaB/PMN-PT asymmetrical ring structure for manipulating trapped magnetic nanoparticles in a fluidic environment

Abstract: The manipulation of domain walls (DWs) in strain-mediated magnetoelectric (ME) heterostructures has attracted much attention recently, with potential applications in precise and location-specific manipulation of magnetic nanoparticles (MNPs).

Cited by 7 publications

References 65 publications

A magnetically controlled microfluidic device for concentration dependent in vitro testing of anticancer drug

A magnetically controlled microfluidic device for concentration dependent in vitro testing of anticancer drug

Magnetoelectric Core–Shell Nanoparticle–Based Wearable Hybrid Energy Harvesters for Biomedical Applications

Infrared-driven pyroelectric effect in magnetoelectric sensor for suspended on-chip magnetic nanoparticles quantification

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