Magnetite embedded κ-carrageenan-based double network nanocomposite hydrogel with two-way shape memory properties for flexible electronics and magnetic actuators

Alipour, Sakineh; Pourjavadi, Ali; Hosseini, Seyed Hasan

doi:10.1016/j.carbpol.2023.120610

Cited by 21 publications

(10 citation statements)

References 71 publications

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“…Traditional hydrogels contain a large amount of water in their network and are weak against external mechanical stimuli. Hydrogels are excellent adhesive compounds because their hydroxyl groups interact with the phosphate groups of the human skin cell membrane by hydrogen bonding [ 6 ]. Ion-conductive hydrogel sensors have wide applications in wearable, implantable devices.…”

Section: State Of Artmentioning

confidence: 99%

Stretch Sensor: Development of Biodegradable Film

Žaimis,

Petronienė,

Dzedzickis

et al. 2024

Sensors

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This article presents research on biodegradable stretch sensors produced using biological material. This sensor uses a piezoresistive effect to indicate stretch, which can be used for force measurement. In this work, an attempt was made to develop the composition of a sensitive material and to design a sensor. The biodegradable base was made from a κ-carrageenan compound mixed with Fe2O3 microparticles and glycerol. The influence of the weight fraction and iron oxide microparticles on the tensile strength and Young’s modulus was experimentally investigated. Tensile test specimens consisted of 10–25% iron oxide microparticles of various sizes. The results showed that increasing the mass fraction of the reinforcement improved the Young’s modulus compared to the pure sample and decreased the elongation percentage. The GF of the developed films varies from 0.67 to 10.47 depending on composition. In this paper, it was shown that the incorporation of appropriate amounts of Fe2O3 microparticles into κ-carrageenan can achieve dramatic improvements in mechanical properties, resulting in elongation of up to 10%. The developed sensors were experimentally tested, and their sensitivity, stability, and range were determined. Finally, conclusions were drawn on the results obtained.

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Section: State Of Artmentioning

confidence: 99%

Stretch Sensor: Development of Biodegradable Film

Žaimis,

Petronienė,

Dzedzickis

et al. 2024

Sensors

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show abstract

“…A possible evolution in the fabrication of advanced nanocomposite materials is in the AI control of the physical states of hybrid circuits (solid/liquid) for intelligent adaptive micro-robot implementations. Other important properties of intelligent materials are self-healing [67][68][69][70][71][72][73][74][75][76][77][78][79][80][81] (as in polymer composites based on graphene and carbon nanotubes (CNT) and PDMS) and the shape memory effect [82][83][84][85][86][87][88] (as in ferroic nanocomposites and nanocomposite hydrogels). AI data processing could be adopted to regenerate micro-and nano-electronic circuits and to enable shape auto-adaptive actions controlling external stimuli.…”

Section: (Ket Ii) Advanced Materialsmentioning

confidence: 99%

Intelligent Materials and Nanomaterials Improving Physical Properties and Control Oriented on Electronic Implementations

Massaro

2023

Electronics

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The review highlights possible research topics matching the experimental physics of matter with advances in electronics to improve the intelligent design and control of innovative smart materials. Specifically, following the European research guidelines of Key Enabling Technologies (KETs), I propose different topics suitable for project proposals and research, including advances in nanomaterials, nanocomposite materials, nanotechnology, and artificial intelligence (AI), with a focus on electronics implementation. The paper provides a new research framework addressing the study of AI driving electronic systems and design procedures to determine the physical properties of versatile materials and to control dynamically the material’s “self-reaction” when applying external stimuli. The proposed research framework allows one to ideate new circuital solutions to be integrated in intelligent embedded systems formed of materials, algorithms and circuits. The challenge of the review is to bring together different research concepts and topics regarding innovative materials to provide a research direction for possible AI applications. The discussed research topics are classified as Technology Readiness Levels (TRL) 1 and 2.

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“…Shape memory gels (SMGs), emerging as promising smart shape-changing soft materials, , have captured tremendous attention for their potential in sensors, actuators, artificial muscles, medical devices, etc. According to the nature of the dispersed medium (water, organic solvent, ionic liquid), SMGs are classified into shape memory hydrogels, shape memory organogels, shape memory organohydrogels, shape memory ionogels, etc.…”

Section: Introductionmentioning

confidence: 99%

Natural Oleanolic Acid-Tailored Eutectogels Featuring Multienvironment Shape Memory Performance

Yin,

Liu,

et al. 2024

ACS Appl. Mater. Interfaces

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Shape memory gels, one of the primary modern smart materials, hold great promise in a myriad of applications spanning from soft robotics to medical devices. Nevertheless, most shape memory gels rely on water, organic solvents, and ionic liquids as dispersion mediums, posing the risks of freezing, dehydration, and toxicity to humans or environment. Herein, we have developed a thermoresponsive shape memory eutectogel by introducing an oleanolic acid-modified polyacrylamide network into a deep eutectic solvent (DES). The resulting eutectogel shows a fracture strength of 4.46 MPa along with elongation of 345%, Young's modulus of 14.83 MPa, and toughness of 9.51 MJ m −3 . Thanks to the low freezing point and low volatility inherited from DES, this eutectogel possesses good antifreezing and long-term storage stability, which facilitate the shape memory behavior both in silicone oil and in air. The shape fixity and shape recovery ratios of this eutectogel maintain almost 90% during 10 cycles in silicone oil and more than 70% during four cycles in air that cannot be realized in hydrogels. By virtue of shape memory effect and conductivity, the eutectogel can be further used as a thermoswitch. This work presents a simple approach to fabricating shape memory eutectogels and imparts exciting prospects to smart eutectogels.

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Magnetite embedded κ-carrageenan-based double network nanocomposite hydrogel with two-way shape memory properties for flexible electronics and magnetic actuators

Cited by 21 publications

References 71 publications

Stretch Sensor: Development of Biodegradable Film

Stretch Sensor: Development of Biodegradable Film

Intelligent Materials and Nanomaterials Improving Physical Properties and Control Oriented on Electronic Implementations

Natural Oleanolic Acid-Tailored Eutectogels Featuring Multienvironment Shape Memory Performance

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