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

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

doi:10.1016/j.ijbiomac.2023.126287

Cited by 53 publications

(23 citation statements)

References 319 publications

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“…The variety and distinctive characteristics of 4D food printing offer numerous potential applications across diverse industries. 4D food printing allows for the production of personalized food items that are specifically designed to meet individual dietary restrictions, preferences, and medical necessities (Khalid et al, 2023). 4D food printing enables the creation of customized medical food products that cater to the unique dietary requirements and swallowing challenges of patients.…”

Section: Industrial Scalability Of 4d Food Printingmentioning

confidence: 99%

4D food printing technology: Structural changes to culinary art and beyond

Singh,

Pandey,

Tripathi

et al. 2024

J Food Process Engineering

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The evolution of food manufacturing through 3D printing has expanded with the development of 4D printing technology and opened new possibilities in culinary applications. Compared to conventional 3D printing, 4D printing incorporates time as a new dimension, allowing for dynamic modifications to food structures. Self‐assembly and reactions to external factors such as pH, moisture content, or temperature are examples of these alterations. The gastronomic design and nutritional possibilities have increased with the use of 4D printing in the food preparation process. Personalized nutrition is a significant use of 4D printing in the food industry. With the use of this technology, food products may be tailored to meet the dietary requirements of everyone, encouraging better eating practice and treating nutritional shortages. Furthermore, complex culinary designs that were previously difficult to accomplish are now possible by 4D printing. Intelligent materials that adapt their surroundings allow for self‐adjusting forms or packaging, which lowers waste and promotes sustainable food practices. Transportation and food storage could be revolutionized by 4D printing. Food deterioration and waste can be reduced, and food quality preserved throughout storage and transportation with the help of self‐adjusting packaging that adjusts to temperature fluctuations. Examining the most recent advancements in 4D food printing technology, this review highlights how this technology can revolutionize customized nutrition, sustainability, waste management, and culinary inventiveness.Practical ApplicationsUnderstanding the concept and advances in food printing technology is important to develop nutritionally enriched food products with desired shape. The factors involved in 4D food printing technologies and the structural and biochemical changes in products during processing are critically analyzed.

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Section: Industrial Scalability Of 4d Food Printingmentioning

confidence: 99%

4D food printing technology: Structural changes to culinary art and beyond

Singh,

Pandey,

Tripathi

et al. 2024

J Food Process Engineering

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“…Arif et al 248 have discussed in detail about environment‐friendly and biodegradable biopolymers, which are gaining popularity, whether natural or synthetic. Apart from these, biopolymers are also gaining popularity due to their application in tissue engineering, biomedical and soft actuators, and sophisticated and modern manufacturing techniques, such as 3D/four‐dimensional (4D) printing 249 . An MXene based hydrogel strain sensor is a recent development that was prepared by doping PVA hydrogel with MXene (Ti3C2Tx) as 2D carbo‐nitrides/metal carbides.…”

Section: Materials Selectionmentioning

confidence: 99%

“…Apart from these, biopolymers are also gaining popularity due to their application in tissue engineering, biomedical and soft actuators, and sophisticated and modern manufacturing techniques, such as 3D/four-dimensional (4D) printing. 249 An MXene ammonium hydroxide (SBMA/PVA) strain sensors showed 300 $ 1000% stretchability, $0.6 MPa of rigidity, and high identification limit concerning numerous time elbow/finger bending. Besides, polyAAc/SA hydrogel sensors likewise showed high and maintainable sensitivity for identifying pressure between 0.17 $ 1000 kPa.…”

Section: Conducting Polymers and Hydrogelsmentioning

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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“…12−15 Many researchers have proposed that using CNC as a filler in modified thermoplastic polyurethane (TPU) can enhance its strength and shape memory performance. 16,17 However, due to the large specific surface area and abundant hydroxyl groups of CNC, 18 achieve uniform dispersion in the matrix material, resulting in a poor reinforcement effect. Typical surface modification methods for CNC include physical adsorption, chemical bonding, and their combination.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, cellulose nanocrystals (CNCs) have become a research hotspot due to their high modulus, high strength, excellent biocompatibility, and biodegradability. − Many researchers have proposed that using CNC as a filler in modified thermoplastic polyurethane (TPU) can enhance its strength and shape memory performance. , However, due to the large specific surface area and abundant hydroxyl groups of CNC, it tends to agglomerate and stack, making it difficult to achieve uniform dispersion in the matrix material, resulting in a poor reinforcement effect.…”

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

Cited by 53 publications

References 319 publications

4D food printing technology: Structural changes to culinary art and beyond

4D food printing technology: Structural changes to culinary art and beyond

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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