4D printing of shape memory polymer composites: A review on fabrication techniques, applications, and future perspectives

Journal of Manufacturing Processes, Journal Year: 2022, Volume and Issue: 81, P. 759 - 797

Published: July 25, 2022

Language: Английский

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4D bioprinting of smart polymers for biomedical applications: recent progress, challenges, and future perspectives

Reactive and Functional Polymers, Journal Year: 2022, Volume and Issue: 179, P. 105374 - 105374

Published: Aug. 10, 2022

4D bioprinting is the next-generation additive manufacturing-based fabrication platform employed to construct intricate, adaptive, and dynamic soft hard tissue structures as well biomedical devices. It achieved by using stimuli-responsive materials, especially shape memory polymers (SMPs) hydrogels, which possess desirable biomechanical characteristics. In last few years, numerous efforts have been made printing community develop novel polymeric materials considering their perspective. This review presents an up-to-date overview of technology incorporating functionalities biomaterials focused approach towards different engineering regenerative medicine (TERM) applications. includes bone, cardiac, neural, cartilage, drug delivery systems, other high-value also addresses current limitations challenges in provide a basis for foreseeable advancements TERM applications that could be helpful successful utilization clinical settings.

Language: Английский

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4D printing: Technological developments in robotics applications

Sensors and Actuators A Physical, Journal Year: 2022, Volume and Issue: 343, P. 113670 - 113670

Published: June 10, 2022

Language: Английский

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Recent Advances in the Additive Manufacturing of Stimuli‐Responsive Soft Polymers

Advanced Engineering Materials, Journal Year: 2023, Volume and Issue: 25(21)

Published: Aug. 29, 2023

Stimuli‐responsive polymers (SRPs) are special types of soft materials, which have been extensively used for developing flexible actuators, robots, wearable devices, sensors, self‐expanding structures, and biomedical thanks to their ability change shapes functional properties in response external stimuli including light, humidity, heat, pH, electric field, solvent, magnetic field or combinations two more these stimuli. In recent years, additive manufacturing (AM) aka 3D printing technology SRPs, also known as 4D printing, has gained phenomenal attention different engineering fields, its unique develop complex, personalized, innovative undergo twisting, elongating, swelling, rolling, shrinking, bending, spiraling, other complex morphological transformations. Herein, an effort made provide insightful information about the AM techniques, type applications including, but not limited tissue engineering, bionics, construction, smart textiles. This article incorporates current challenges prospects, hoping basis utilization this fields. It is expected that amalgamation with SRPs would unparalleled advantages arenas.

Language: Английский

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3D printing of magneto-active smart materials for advanced actuators and soft robotics applications

European Polymer Journal, Journal Year: 2024, Volume and Issue: 205, P. 112718 - 112718

Published: Jan. 2, 2024

In the contemporary era, novel manufacturing technologies like additive (AM) have revolutionized different engineering sectors including biomedical, aerospace, electronics, etc. Four-dimensional (4D) printing aka AM of smart materials is gaining popularity among scientific community, which has excellent ability to make soft structures such as robots, actuators, and grippers. These are developed by applying various stimuli pH, temperature, magnetic field, many combinations onto materials. Stimuli in 3D permit shape-morphing behaviors bending, twisting, folding, swelling, rolling, shrinking, origami, or locomotion. A wide variety can be fabricated through incorporation hard particles into resulting magneto-active (MASMs). With this integration, magneto-thermal coupling actuation allows diverse magneto-deformations, facilitating development personalized devices that capable enhanced deformation. review, guidelines provided on for MASMs polymers (MAPs), composites, hydrogels (MAHs) booming flexible wearable biomimetic devices. Moreover, 3D-printed robotics an outstanding capacity adapt complicated situations advanced actuating applications. Finally, some current challenges emerging areas exciting technology been proposed. Lastly, it anticipated technological advancements developing intelligent will a significant impact design real-world

Language: Английский

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3D/4D printing of cellulose nanocrystals-based biomaterials: Additives for sustainable applications

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 251, P. 126287 - 126287

Published: Aug. 11, 2023

Cellulose nanocrystals (CNCs) have gained significant attraction from both industrial and academic sectors, thanks to their biodegradability, non-toxicity, renewability with remarkable mechanical characteristics. Desirable characteristics of CNCs include high stiffness, strength, excellent flexibility, large surface-to-volume ratio. Additionally, the properties can be tailored through chemical modifications for high-end applications including tissue engineering, actuating, biomedical. Modern manufacturing methods 3D/4D printing are highly advantageous developing sophisticated intricate geometries. This review highlights major developments additive manufactured CNCs, which promote sustainable solutions across a wide range applications. this contribution also presents current challenges future research directions CNC-based composites developed techniques myriad engineering sectors wound healing, wearable electronics, robotics, anti-counterfeiting Overall, will greatly help scientists chemistry, materials, biomedicine, other disciplines comprehend underlying principles, properties, additively structures.

Language: Английский

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Emerging Bioprinting for Wound Healing

Advanced Materials, Journal Year: 2023, Volume and Issue: unknown

Published: Aug. 11, 2023

Bioprinting has attracted much attention due to its suitability for fabricating biomedical devices. In particular, bioprinting become one of the growing centers in field wound healing, with various types bioprinted devices being developed, including 3D scaffolds, microneedle patches, and flexible electronics. Bioprinted can be designed specific biostructures biofunctions that closely match shape sites accelerate regeneration skin through approaches. Herein, a comprehensive review smart dressings is presented, emphasizing crucial effect determining biofunctions. The begins an overview techniques devices, followed in-depth discussion polymer-based inks, modification strategies, additive ingredients, properties, applications. strategies are divided into seven categories, chemical synthesis novel physical blending, coaxial bioprinting, multimaterial absorption, immobilization, hybridization living cells, examples presented. Thereafter, frontiers 4D artificial intelligence-assisted situ discussed from perspective interdisciplinary sciences. Finally, current challenges future prospects this highlighted.

Language: Английский

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Sustainable 4D printing of magneto-electroactive shape memory polymer composites

The International Journal of Advanced Manufacturing Technology, Journal Year: 2023, Volume and Issue: 126(1-2), P. 35 - 48

Published: Feb. 21, 2023

Abstract Typical techniques for creating synthetic morphing structures suffer from a compromise between quick shape change and geometric complexity. A novel approach is proposed encoding numerous shapes forms by magneto-electroactive memory polymer composite (SMPC) integrating sustainability with 4D printing (4DP) technology. Electrically driven, remote controllability, reaction are the features of these sustainable structures. Low-cost 4D-printed SMPC can be programmed remotely at high temperatures to achieve multi-stable snap repeatedly all temporary permanent configurations. This allows multiple designs in single structure without wasting material. The strategy based on knowledge mechanics, magnetic response, manufacturing idea underlying fused deposition modelling (FDM). Iron-filled polylactic acid (MPLA) carbon black-filled conductive PLA (CPLA) materials investigated terms microstructure properties, interface, mechanical properties. Characterisation studies carried out identify how control low field. studied. FDM used print MPLA CPLA adaptive 1D/2D-to-2D/3D shapeshifting benefits switchable reducing material waste effort/energy increasing efficiency sectors such as packaging. Graphical

Language: Английский

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New Trends in 4D Printing: A Critical Review

Applied Sciences, Journal Year: 2023, Volume and Issue: 13(13), P. 7744 - 7744

Published: June 30, 2023

In a variety of industries, Additive Manufacturing has revolutionized the whole design–fabrication cycle. Traditional 3D printing is typically employed to produce static components, which are not able fulfill dynamic structural requirements and inappropriate for applications such as soft grippers, self-assembly systems, smart actuators. To address this limitation, an innovative technology emerged, known “4D printing”. It processes materials by using fabricating structures that can be reconfigured applying different inputs, heat, humidity, magnetism, electricity, light, etc. At present, 4D still growing technology, it presents numerous challenges regarding materials, design, simulation, fabrication processes, applied strategies, reversibility. work critical review technologies, provided.

Language: Английский

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4D Printing for Biomedical Applications

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: April 5, 2024

Abstract 4D (bio‐)printing endows 3D printed (bio‐)materials with multiple functionalities and dynamic properties. materials have been recently used in biomedical engineering for the design fabrication of devices, such as stents, occluders, microneedles, smart 3D‐cell engineered microenvironments, drug delivery systems, wound closures, implantable medical devices. However, success printing relies on rational objects, selection materials, availability appropriate types external (multi‐)stimuli. Here, this work first highlights different stimuli, strategies (bio‐)printing. Then, it presents a critical review applications discusses future directions research exciting area, including vivo tissue regeneration studies, implementation reversible shape memory behaviors, creation fast shape‐transformation responses, ability to operate at microscale, untethered activation control, application (machine learning‐based) modeling approaches predict structure–property design–shape transformation relationships (bio)printed constructs.

Language: Английский

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