Contactless reversible 4D-printing for 3D-to-3D shape morphing

Lee, Amelia Yilin; Zhou, Aiwu; An, Jia; Chua, Chee Kai; Zhang, Yi

doi:10.1080/17452759.2020.1822189

Cited by 42 publications

(20 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Speed and reversibility are challenges in conventional contactless 4D printing. [ 51 ] The results demonstrate the advantage of our materials in realizing fast and reversible 4D printing.…”

Section: Resultsmentioning

confidence: 72%

Mechanically‐Guided 4D Printing of Magnetoresponsive Soft Materials across Different Length Scale

Zhu

Wang

et al. 2021

Advanced Intelligent Systems

View full text Add to dashboard Cite

Untethered magnetoresponsive soft materials that can transform between various complex 3D shapes are of growing interests in diverse areas such as soft robotics, flexible electronics, and biomedical engineering. Previous approaches are difficult to precisely encode continuous 3D magnetization profiles in smallscale 3D structures. Herein, a novel method to produce magnetoresponsive soft materials for shape-morphing systems across different length scale is reported. The magnetization profiles are programmed by the mechanically-guided 4D printing with high precision and time-cost efficiency. A theoretical model and model-based simulation method are developed to quantitatively predict shapemorphing of printed structures under applied magnetic fields, and guide the design of complex 3D shapes. A broad set of structures with complex transformations are fabricated to illustrate the capability of the methods. Diverse typical functional applications from centimeter-to millimeter-scale, including soft crawling robots, flexible grippers, bionic butterfly, and multistate magnetic switch, are further demonstrated.

show abstract

“…Speed and reversibility are challenges in conventional contactless 4D printing. [ 51 ] The results demonstrate the advantage of our materials in realizing fast and reversible 4D printing.…”

Section: Resultsmentioning

confidence: 72%

Mechanically‐Guided 4D Printing of Magnetoresponsive Soft Materials across Different Length Scale

Zhu

Wang

et al. 2021

Advanced Intelligent Systems

View full text Add to dashboard Cite

show abstract

“…Currently, all previous 4D bioprinting work only presents shape transformation from 2D and/or 2.5D (2D structure with a certain addition in the z ‐direction) to 3D. [ 51 ] To the best of our knowledge, 3D‐to‐3D shape morphing of cytocompatible biomaterials with encapsulated cells, enabled by 4D bioprinting or any other means, has not been reported. 3D‐to‐3D morphing is particularly challenging for hydrogel materials due to the difficulty in obtaining a stable printed 3D structure with effective structural anisotropy incorporation.…”

Section: Resultsmentioning

confidence: 99%

Jammed Micro‐Flake Hydrogel for Four‐Dimensional Living Cell Bioprinting

et al. 2022

View full text Add to dashboard Cite

4D bioprinting is promising to build cell‐laden constructs (bioconstructs) with complex geometries and functions for tissue/organ regeneration applications. The development of hydrogel‐based 4D bioinks, especially those allowing living cell printing, with easy preparation, defined composition, and controlled physical properties is critically important for 4D bioprinting. Here, a single‐component jammed micro‐flake hydrogel (MFH) system with heterogeneous size distribution, which differs from the conventional granular microgel, has been developed as a new cell‐laden bioink for 4D bioprinting. This jammed cytocompatible MFH features scalable production and straightforward composition with shear‐thinning, shear‐yielding, and rapid self‐healing properties. As such, it can be smoothly printed into stable 3D bioconstructs, which can be further cross‐linked to form a gradient in cross‐linking density when a photoinitiator and a UV absorber are incorporated. After being subject to shape morphing, a variety of complex bioconstructs with well‐defined configurations and high cell viability are obtained. Based on this system, 4D cartilage‐like tissue formation is demonstrated as a proof‐of‐concept. The establishment of this versatile new 4D bioink system may open up a number of applications in tissue engineering.

show abstract

“…used a multimaterial jetting process to combine two materials with different properties, VeroWhitePlus and TangoBlackPlus, for combined printing of a two‐layer model, and achieved forward bending of the shape by the asymmetric expansion of the structure through ethanol heating, and shape recovery through drying heating, as shown in Figure 8c. [ 117 ] Shin et al. used the FDM process to make PLA material or conductive‐deposited PLA material on paper to obtain a smart soft brake that straightens when heated (powered on) and bends when cooled (powered off).…”

Section: Intelligent Excitation and Response Mode Of 4d Printed Smpmentioning

confidence: 99%

Advances in 4D Printed Shape Memory Polymers: From 3D Printing, Smart Excitation, and Response to Applications

Zhang

Yin

Ren

et al. 2022

Adv Materials Technologies

View full text Add to dashboard Cite

The most common SMP is the one-way double SMP under thermal excitation, where thermal excitation specifically refers to the assignment of a temporary shape to the material in a thermal environment and triggers the return of a permanent shape under thermal stimulation. One-way indicates that the deformation of the temporary shape to the permanent shape is one-way irreversible and cannot be reversed spontaneously. Double indicates that the SMP can only remember one temporary shape during the deformation process. However, the single stimulus-response model of the thermal response dual SMP and its sensitivity to temperature change conditions have greatly limited its application, and this shortcoming has largely affected the continued development of SMP. To meet the adaptation needs of SMP in various fields, conventional solutions focus on the design of SMP material modification, such as enriching the SMP response deformation mode by adding functional fillers. Recently, with the emergence of 4D printing, it provides a new idea for the design and manufacturing of efficient, intelligently deformed, and multifunctionally integrated prototypes. [10][11][12] And SMPs have become one of the most widely used material types in 4D printing research due to their superior material properties and printability. [13] And they show great potential for applications in biomedicine, intelligent robotics, aerospace and other fields. [14][15][16][17] Therefore, this review provides an overview of the 3D printing processes commonly used in 4D printing SMP and the shape deformation patterns of SMP, an analysis of novel 4D deformation patterns realized with the unique molding principles of 3D printing, and 4D printing strategies for integrated structure-material-function manufacturing, as shown in Figure 1, providing a research basis for next-generation biomedical implants, smart devices, and origami structures.

show abstract

Contactless reversible 4D-printing for 3D-to-3D shape morphing

Cited by 42 publications

References 60 publications

Mechanically‐Guided 4D Printing of Magnetoresponsive Soft Materials across Different Length Scale

Mechanically‐Guided 4D Printing of Magnetoresponsive Soft Materials across Different Length Scale

Jammed Micro‐Flake Hydrogel for Four‐Dimensional Living Cell Bioprinting

Advances in 4D Printed Shape Memory Polymers: From 3D Printing, Smart Excitation, and Response to Applications

Contact Info

Product

Resources

About