3D‐Printed Hydrogels and Aerogels for Water Treatment and Energy Storage Applications

Gusain, Rashi; Kumar, Neeraj; Ray, Suprakas Sinha

doi:10.1002/slct.202300738

Cited by 10 publications

(4 citation statements)

References 131 publications

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“…The predominant approach to 3D printing, particularly using polymer filaments, is called fused deposition modelling (FDM) or fused filament fabrication (FFF), which uses a continuous thermoplastic polymer filament to 3D print layers of material. The filament is heated at the nozzle to reach a semi-fluid state and then extruded onto the platform or previously printed layers [11,13,15,16]. Another extrusion-based 3D printing technique is robocasting, direct ink writing (DIW), or simply 3D printing [11,13,16].…”

Section: Overview Of 3d Printingmentioning

confidence: 99%

“…The filament is heated at the nozzle to reach a semi-fluid state and then extruded onto the platform or previously printed layers [11,13,15,16]. Another extrusion-based 3D printing technique is robocasting, direct ink writing (DIW), or simply 3D printing [11,13,16].…”

Section: Overview Of 3d Printingmentioning

confidence: 99%

“…SLA refers specifically to vat photopolymerisation (VP), where photocurable resins are exposed to a UV laser and undergo a chemical reaction to become solid. The chemical reaction involves chemical compounds such as photo-initiators, additives, and reactive monomers/oligomers [13,14,16,18,19]; (g) Direct energy deposition (DED)-an approach that can be used to produce high-performance super-alloys. This uses an energy source (laser or electron beam) focused directly onto a small substrate area to simultaneously melt a starting material (powder or wire).…”

Section: Overview Of 3d Printingmentioning

confidence: 99%

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Rheology in Product Development: An Insight into 3D Printing of Hydrogels and Aerogels

Barrulas,

Corvo

2023

Gels

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Rheological characterisation plays a crucial role in developing and optimising advanced materials in the form of hydrogels and aerogels, especially if 3D printing technologies are involved. Applications ranging from tissue engineering to environmental remediation require the fine-tuning of such properties. Nonetheless, their complex rheological behaviour presents unique challenges in additive manufacturing. This review outlines the vital rheological parameters that influence the printability of hydrogel and aerogel inks, emphasising the importance of viscosity, yield stress, and viscoelasticity. Furthermore, the article discusses the latest developments in rheological modifiers and printing techniques that enable precise control over material deposition and resolution in 3D printing. By understanding and manipulating the rheological properties of these materials, researchers can explore new possibilities for applications such as biomedicine or nanotechnology. An optimal 3D printing ink requires strong shear-thinning behaviour for smooth extrusion, forming continuous filaments. Favourable thixotropic properties aid viscosity recovery post-printing, and adequate yield stress and G′ are crucial for structural integrity, preventing deformation or collapse in printed objects, and ensuring high-fidelity preservation of shapes. This insight into rheology provides tools for the future of material design and manufacturing in the rapidly evolving field of 3D printing of hydrogels and aerogels.

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Section: Overview Of 3d Printingmentioning

confidence: 99%

Section: Overview Of 3d Printingmentioning

confidence: 99%

Section: Overview Of 3d Printingmentioning

confidence: 99%

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Rheology in Product Development: An Insight into 3D Printing of Hydrogels and Aerogels

Barrulas,

Corvo

2023

Gels

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“…Gel-based membranes made from biopolymers are increasingly being recognized for their potential in wound healing applications. Being derived from natural sources, biopolymers are typically biocompatible, meaning they are less likely to cause adverse reactions when in contact with body tissues [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

State-of-the-Art Advances and Current Applications of Gel-Based Membranes

Ungureanu,

Răileanu,

Zgârian

et al. 2024

Gels

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Gel-based membranes, a fusion of polymer networks and liquid components, have emerged as versatile tools in a variety of technological domains thanks to their unique structural and functional attributes. Historically rooted in basic filtration tasks, recent advancements in synthetic strategies have increased the mechanical strength, selectivity, and longevity of these membranes. This review summarizes their evolution, emphasizing breakthroughs that have positioned them at the forefront of cutting-edge applications. They have the potential for desalination and pollutant removal in water treatment processes, delivering efficiency that often surpasses conventional counterparts. The biomedical field has embraced them for drug delivery and tissue engineering, capitalizing on their biocompatibility and tunable properties. Additionally, their pivotal role in energy storage as gel electrolytes in batteries and fuel cells underscores their adaptability. However, despite monumental progress in gel-based membrane research, challenges persist, particularly in scalability and long-term stability. This synthesis provides an overview of the state-of-the-art applications of gel-based membranes and discusses potential strategies to overcome current limitations, laying the foundation for future innovations in this dynamic field.

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Efficient PFAS Removal Using Reusable and Non‐Toxic 3D Printed Porous Trianglamine Hydrogels

Chaix,

Gomri,

Benkhaled

et al. 2024

Advanced Materials

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Per‐ and polyfluoroalkyl substances (PFAS) are now a paramount concern in water remediation. Nowadays, urgent action is required for the development of advanced technologies aimed at capturing PFAS and mitigating their impact. To offer a solution, a functional 3D printed hydrogel tailored is designed to trap a broad spectrum of PFAS contaminants. The hydrogel is made of a photo‐crosslinked dimethacrylate‐ureido‐trianglamine (DMU‐Δ) and Pluronic P123 dimethacrylate (PDM) fabricated by stereolithography (SLA). With the aid of 3D‐printing, porous and nonporous hydrogels (3D‐PSHΔ, 3D‐SHΔ) as well as quaternized hydrogels (3D‐PSHΔQ+) are prepared. These tailored hydrogels, show high uptake capacities and fast removal kinetics for PFAS from aqueous sources. The PFAS removal efficiency of these hydrogels are then compared to P123 hydrogels with no trianglamine (3D‐SH). The 3D‐SH hydrogel shows no affinity to PFAS, proving that the sorption is due to the interaction between the trianglamine (Δ) and PFAS. Metadynamic simulations also confirmed this interaction. The porous matrices showed the fastest and highest uptake capacity. 3D‐PSHΔ is able to capture ≈ 91% of PFAS within 5 h using initial concentrations of 5 and 0.5 ppm in both deionized and river water. The sorption of PFAS is further enhanced by introducing permanent positive charges to the structure of the porous hydrogels, resulting in even faster sorption kinetics for both long and short PFAS chains with diverse polar heads. Besides the remarkable efficiency in capturing PFAS, these designed hydrogels are non‐toxic and have outstanding chemical and thermal stability, making them a brilliant candidate for mass use in the combat against PFAS pollution.

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3D‐Printed Hydrogels and Aerogels for Water Treatment and Energy Storage Applications

Cited by 10 publications

References 131 publications

Rheology in Product Development: An Insight into 3D Printing of Hydrogels and Aerogels

Rheology in Product Development: An Insight into 3D Printing of Hydrogels and Aerogels

State-of-the-Art Advances and Current Applications of Gel-Based Membranes

Efficient PFAS Removal Using Reusable and Non‐Toxic 3D Printed Porous Trianglamine Hydrogels

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