Additive manufacturing of sustainable biomaterials for biomedical applications

Arif, Zia Ullah; Khalid, Muhammad Yasir; Noroozi, Reza; Hossain, Mokarram; Shi, Haotian; Ramakrishna, Seeram; Umer, Rehan

doi:10.1016/j.ajps.2023.100812

Cited by 71 publications

(29 citation statements)

References 429 publications

(395 reference statements)

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“…With the advent of additive manufacturing techniques, the production of hMSMs has been relatively easier, thanks to their sheer abilities to program geometrically-nonlinear transformations for complex 3D shapes [134,135], especially the 3D printing techniques that leverage layer-by-layer material deposition [136], thereby enabling the integration of hard magnetic particles within a flexible polymer matrix [137]. This stands as a versatile and sophisticated manufacturing method extensively employed in producing tailored polymer-based materials for cutting-edge healthcare systems [138]. This has shifted the interest from traditional methods to additive manufacturing techniques.…”

Section: Additive Manufacturingmentioning

confidence: 99%

Hard magnetics and soft materials—a synergy

Narayanan,

Pramanik,

Arockiarajan

2024

Smart Mater. Struct.

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Hard-magnetic soft materials (hMSMs) are smart composites that consist of a mechanically soft polymer matrix impregnated with mechanically hard magnetic filler particles. This dual-phase composition renders them with exceptional magneto-mechanical properties that allow them to undergo large reversible deformations under the influence of external magnetic fields. Over the last decade, hMSMs have found extensive applications in soft robotics, adaptive structures, and biomedical devices. However, despite their widespread utility, they pose considerable challenges in fabrication and magneto-mechanical characterization owing to their multi-phase nature, miniature length scales, and nonlinear material behavior. Although noteworthy attempts have been made to understand their coupled nature, the rudimentary concepts of inter-phase interactions that give rise to their mechanical nonlinearity remain insufficiently understood, and this impedes their further advancements. This holistic review addresses these standalone concepts and bridges the gaps by providing a thorough examination of their myriad fabrication techniques, applications, and experimental, and modeling approaches. Specifically, the review presents a wide spectrum of fabrication techniques, ranging from traditional molding to cutting-edge four-dimensional (4D) printing, and their unbounded prospects in diverse fields of research. The review covers various modeling approaches, including continuum mechanical frameworks encompassing phenomenological and homogenization models, as well as microstructural models. Additionally, it addresses emerging techniques like machine learning-based modeling in the context of hMSMs. Finally, the expansive landscape of these promising material systems is provided for a better understanding and prospective research.

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Section: Additive Manufacturingmentioning

confidence: 99%

Hard magnetics and soft materials—a synergy

Narayanan,

Pramanik,

Arockiarajan

2024

Smart Mater. Struct.

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“…The processes used to melt the material through heat and depositing the melted material layer by layer to create three‐dimensional objects are referred to as “fused deposition modeling (FDM) technology,” which is a form of “Additive Manufacturing” (AM), 285,286 sometimes also referred as fused filament fabrication 220 . In these processes, layers of material are successively formed under a computer‐controlled program to produce a physical object.…”

Section: Fabrication Techniquesmentioning

confidence: 99%

Recent developments in stretchable and flexible tactile sensors towards piezoresistive systems: A review

Saxena,

Patra

2023

Polymers for Advanced Techs

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Stretchable and flexible piezoresistive sensors (SFPSs) can detect mechanical stimuli in terms of electrical response and provide adaptability to use with complex surfaces, whether stationary or moving. Its stretchable and flexible nature makes it ideal for detecting large strains, localized pressure, bending, and twisting. SFPSs can detect pressure and strain in a broad range. SFPSs have ease of manufacturing, high sensitivity, better durability, easy processing, and economic development. These qualities of SFPSs can open a wide range of application possibilities, such as healthcare, human motion detection, a safe environment to interact with robots, automation, and soft robotics. The discussion in this article starts from the sensing mechanism, design development over the years, a variety of materials used for substrates and to provide conductivity to the sensors, fabrication processes explored and developed, enhancement in the performance characteristics, to have future directions. Over the last decades, exponential development has occurred in SFPSs systems based on design mechanisms, materials used, and fabrication techniques, even though several technological and design challenges remain undetermined and bear decisive interdisciplinary intervention to address them.

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“…Shape memory polymers (SMPs), as lightweight, high-strain, and cost-effective smart materials, have demonstrated great potential in various fields such as aerospace, biomedical, and flexible electronic devices. , Compared to the more maturely applied thermoset shape memory polymers, thermoplastic and thermally responsive shape memory polymers have gained attention from researchers due to their advantages of easy processing, environmental friendliness, and biodegradability. − …”

Section: Introductionmentioning

confidence: 99%

Performance and 4D Printing of Thermoplastic Polyurethane/Cellulose Nanocrystal-Poly(vinyl acetate) Nanocomposites

Liu,

Han,

Lyu

et al. 2024

ACS Appl. Polym. Mater.

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Thermoplastic polyurethane (TPU) is a linear block copolymer composed of hard and soft segments that possesses unique strength, toughness, and shape memory properties. Owing to the high modulus, strength, and biocompatibility, cellulose nanomaterials have been proposed to modify TPU for obtaining high-strength and highperformance green fused filament fabrication (FFF) consumables. However, achieving a high-level dispersion of cellulose nanofillers in the TPU matrix remains a challenge as the abundant hydroxyl groups on the surface of cellulose nanomaterials tend to undergo self-aggregation. Industrial melt compounding, rather than solution compounding, is still a challenging method to achieve this. Herein, by using poly(vinyl acetate) (PVAc)-modified cellulose nanocrystal (CNC) powder (CNC-PVAc) containing a mixture of CNC grafted by PVAc and PVAc homopolymer latex, the homogeneous dispersion of CNC in TPU was achieved by a simple melt blend. The results show that the addition of CNC-PVAc with 4 wt % loading enhances mechanical properties and crystal integrity, with a tensile strength of up to 32.2 MPa. When the content of CNC-PVAc is 6%, the nanocomposites have the best shape memory properties, with a recovery rate of 83.76% and excellent four-dimensional (4D) printing performance at a 0°printing angle. This work provides an industrial route for the preparation of high-performance TPU/CNC-PVAc nanocomposites to meet the strength and performance requirements of the FFF parts.

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Additive manufacturing of sustainable biomaterials for biomedical applications

Cited by 71 publications

References 429 publications

Hard magnetics and soft materials—a synergy

Hard magnetics and soft materials—a synergy

Recent developments in stretchable and flexible tactile sensors towards piezoresistive systems: A review

Performance and 4D Printing of Thermoplastic Polyurethane/Cellulose Nanocrystal-Poly(vinyl acetate) Nanocomposites

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