Effect of Fe3O4 nanoparticles on magneto-responsive shape memory behavior of polyurethane-carbon nanotube nanocomposites

Moghim, Mohammad Hadi; Zebarjad, Seyed Mojtaba; Eqra, Rahim

doi:10.1007/s10965-021-02880-9

Cited by 14 publications

(8 citation statements)

References 41 publications

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“…A particularly important factor is the ability of the composite material to retain a defined shape when heating/cooling and mechanical deformation steps are applied under specific conditions and in a predefined sequence, or when other stimuli such as magnetic field and light are applied. The combined study of thermal, mechanical, and magnetic properties of any new composite formulation is crucial in this context [ 5 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ].…”

Section: Recent Advances In Magnetic Polymer Compositesmentioning

confidence: 99%

Recent Advances in Magnetic Polymer Composites for BioMEMS: A Review

Liao,

Zoumhani,

Boutry

2023

Materials

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The objective of this review is to investigate the potential of functionalized magnetic polymer composites for use in electromagnetic micro-electro-mechanical systems (MEMS) for biomedical applications. The properties that make magnetic polymer composites particularly interesting for application in the biomedical field are their biocompatibility, their adjustable mechanical, chemical, and magnetic properties, as well as their manufacturing versatility, e.g., by 3D printing or by integration in cleanroom microfabrication processes, which makes them accessible for large-scale production to reach the general public. The review first examines recent advancements in magnetic polymer composites that possess unique features such as self-healing capabilities, shape-memory, and biodegradability. This analysis includes an exploration of the materials and fabrication processes involved in the production of these composites, as well as their potential applications. Subsequently, the review focuses on electromagnetic MEMS for biomedical applications (bioMEMS), including microactuators, micropumps, miniaturized drug delivery systems, microvalves, micromixers, and sensors. The analysis encompasses an examination of the materials and manufacturing processes involved and the specific fields of application for each of these biomedical MEMS devices. Finally, the review discusses missed opportunities and possible synergies in the development of next-generation composite materials and bioMEMS sensors and actuators based on magnetic polymer composites.

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Section: Recent Advances In Magnetic Polymer Compositesmentioning

confidence: 99%

Recent Advances in Magnetic Polymer Composites for BioMEMS: A Review

Liao,

Zoumhani,

Boutry

2023

Materials

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“…However, the tensile strength and elongation at break decrease with further increase in Fe 3 O 4 content. According to Moghim et al, 20 when the shape‐memory, mechanical, and magnetic properties were measured by adding Fe 3 O 4 ‐decorated CNTs to polyurethane, the mechanical properties increased such as tensile strength and elastic modulus, but the best shape recovery ratio was 64.6%. Degradation of the properties of the material in any manner could cause major problems to a medical implant.…”

Section: Introductionmentioning

confidence: 99%

Effects of iron oxide and carbon nanotube contents on mechanical properties and shape memory behavior of biocompatible and biodegradable shape memory polymers

Kim,

Chun

2024

Polymers for Advanced Techs

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The shape memory polymers (SMPs) is a potential alternative material for conventional shape memory alloys (SMAs) in various fields. Previous studies have focused on the application of SMPs materials as an alternative to SMAs. However, considering problems such as the poor mechanical properties, its application has been limited. This study developed a biodegradable, magnetically responsive SMPs material that can be used for medical implants with shape memory behavior under magnetic force and improved mechanical properties by adding nanoparticles. Moreover, effect of the added nanoparticle was investigated due to contents ratio. Nanocomposite was synthesized with polycaprolactone which has shape memory properties, Fe3O4 that generates heat under magnetic field, and carbon nanotubes with reinforcing effect. The morphology analysis confirmed the homogeneous dispersion of the Fe3O4/Carbon‐nanotubes (CNTs) in polymer matrix. The tensile test shows that tensile strength (14.9–17.6 MPa) increased when Fe3O4 (0–20 wt%) was included and that it did not increase significantly when CNTs (0–0.8 wt%) were included. The shape memory test result confirmed that developed composite had a shape memory under a magnetic field. It was confirmed that even if Fe3O4 was incorporated into polycaprolactone, did not lose its exothermic properties under magnetic field. The developed polymer showed high shape memory ratio (91%–98%) in all the nanoparticle content rates. With regard to biodegradability, weight loss occurred over time in the phosphate‐buffered saline solution. Therefore, the biocompatible, biodegradable, magnetic response shape memory polymer developed in this study might applied to various medical implant as advanced shape memory materials.

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“…[24][25][26][27][28] Nanoparticulates are usually within the dimensional range of 1-100 nm, behaving as a whole entity relative to transport properties. [29] Additionally, the attributes of nanoparticulates are dimensionally related, changing from those of either fine particulates or bulkish materials. Due to the advent of nanotechnology, elevated emphasis on construction of nanoarchitectures have escalated.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional properties optimization and stimuli‐responsivity of shape memory polymeric nanoarchitectures and applications

Idumah

2023

Polymer Engineering & Sci

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As a result of nanotechnological advancement, parameters inducing flaws in shape memory polymers (SMP), such as weak mechanical properties, low electrical, and thermal conductivities, and so on, were mitigated through the inclusion of a versatile range of nanomaterials such as montmorillonites, carbon nanotubes, graphene and derivatives, cellulose nanocrystals, carbon nanofibers, and so on, thereby forming shape memory polymeric nanoarchitectures (SMPNs). Hence, this work elucidates most recently emerging advancements on multifunctional SMPNs filled by differing nanoparticulates. Varying multifunctional SMPNs exhibit responsivity to varying forms of stimulation strategies, including thermal responsivity, electroactivated, alternating magnetic field responsivity, light sensitivity, and water induced SMPs. Therefore, this article presents very recently emerging advancements in the construction, characterization, properties, and multifunctional applications of stimuliresponsive SMPNs, with special emphasis on functional and stimuli-responsive SMPNs. Furthermore, important functions of SMPNs such as stimuli-memory effect and self-mending abilities, as well as prospective strategies for future progress of these materials are highlighted.

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Effect of Fe3O4 nanoparticles on magneto-responsive shape memory behavior of polyurethane-carbon nanotube nanocomposites

Cited by 14 publications

References 41 publications

Recent Advances in Magnetic Polymer Composites for BioMEMS: A Review

Recent Advances in Magnetic Polymer Composites for BioMEMS: A Review

Effects of iron oxide and carbon nanotube contents on mechanical properties and shape memory behavior of biocompatible and biodegradable shape memory polymers

Multifunctional properties optimization and stimuli‐responsivity of shape memory polymeric nanoarchitectures and applications

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