Active Printed Materials for Complex Self-Evolving Deformations

Raviv, Dan; Zhao, Wei; McKnelly, Carrie; Papadopoulou, Athina; Kadambi, Achuta; Shi, Boxin; Hirsch, Shai; Dikovsky, Daniel; Zyracki, Michael; Olguin, Carlos; Raskar, Ramesh; Tibbits, Skylar

doi:10.1038/srep07422

Cited by 459 publications

(324 citation statements)

References 23 publications

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“…Some teams, such as those made up by Skylar Tibbits or H. Jerry Qi and Martin L. Dunn, develop and test methods for 4D printing, by means of smart materials to create structures that can assemble themselves. Active fibers can be incorporated into composite materials so their behaviour can be predictably controlled when the object is subjected to thermal and mechanical forces (Ge et al, 2013;Ryu et al, 2012;Raviv et al, 2014). This 4D technology provides a new approach to creating reversible 3D surfaces and promises exciting new possibilities, among others the technical implementation for adaptive architectural envelopes we are looking into.…”

Section: Light Reactive Materialsmentioning

confidence: 99%

“…In last years, the huge potential of additive manufacturing and three-dimension printing technologies to generate active systems and structures with complex geometry, have been tested. Printing technologies have developed at an exceptional accuracy, speed, material property and manufacturing cost (Raviv et al, 2014). Recently, some research groups around the world, have gone one step further and have started to work around four-dimension printing concept, which allows materials to self-assemble into 3D structures, adding the extra dimension of time.…”

Section: Light Reactive Materialsmentioning

confidence: 99%

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Active materials for adaptive architectural envelopes based on plant adaptation principles

Lopez

Rubio

Martín

et al. 2015

FDE

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Abstract. In this paper, the authors present research into adaptive architectural envelopes that adapt to environmental changes using active materials, as a result of application of biomimetic principles from plants to architecture. Buildings use large amounts of energy in order to maintain their internal comfort, because conventional buildings are designed to provide a static design solution. Most of the current solutions for facades are not designed for optimum adaptation to contextual issues and needs, while biological solutions to adaptation are often complex, multi-functional and highly responsive. We focus on plant adaptations to the environment, as, due to their immobility, they have developed special means of protection against weather changing conditions. Furthermore, recent developments in new technologies are allowing the possibility to transfer these plant adaptation strategies to technical implementation. These technologies include: multi-material 3D printing, advances in materials science and new capabilities in simulation software. Unlike traditional mechanical activation used for dynamic systems in kinetic facades, adaptive architectural envelopes require no complex electronics, sensors, or actuators. The paper proposes a research of the relationship that can be developed between active materials and environmental issues in order to propose innovative and low-tech design strategies to achieve living envelopes according to plant adaptation principles.

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Section: Light Reactive Materialsmentioning

confidence: 99%

Section: Light Reactive Materialsmentioning

confidence: 99%

Active materials for adaptive architectural envelopes based on plant adaptation principles

Lopez

Rubio

Martín

et al. 2015

FDE

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“…These structures include rigid polymers and hydrogels that respond to moisture to transform from any 1D, 2D, or 3D structure into other arbitrary shapes and functions. 13,14 More recently, the SAL introduced a category of programmable materials expanding the pallet of activation energies utilized (water, heat, light, etc.) as well as the range of material compositions (textile, carbon fiber, other polymers, etc.)…”

Section: D-printed Woodmentioning

confidence: 99%

3D-Printed Wood: Programming Hygroscopic Material Transformations

Correa

PapadopoulouAthina

GuberanChristophe

et al. 2015

3D Printing and Additive Manufacturing

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162

115

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Rapid advances in digital fabrication technologies and new materials development allow for direct control and programmability of physical material transformations. By utilizing multimaterial 3D printing technologies and anisotropic material compositions, we can physically program hygroscopic materials such as wood to precisely sense and self-transform based on fluctuations in the environment. While wood remains one of the most common building materials in use today, it is still predominantly designed to be industrially standardized rather than taking advantage of its inherent anisotropic properties. This research aims to enhance wood's anisotropic and hygroscopic properties by designing and 3D printing custom wood grain structures to promote tunable selftransformation. In this article we present new methods for designing hygroscopic wood transformations and custom techniques for energy activation. A differentiated printing method promotes wood transformation solely through the design of custom-printed wood fibers. Alternatively, a multimaterial printing method allows for greater control and intensified wood transformations through the precise design of multimaterial prints composed of both synthetic wood and polymers. The presented methods, techniques, and material tests demonstrate the first successful results of differentiated printed wood for self-transforming behavior, suggesting a new approach for programmable material and responsive architectures.

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“…The lack of high-fidelity printing materials that mimic the material properties of various soft biological tissues remains a bottleneck for the broader application of medical 3D printing. Recently, 4D printing techniques have been reported to manufacture 3D objects that actively deform [6]. However, it is still very difficult to simulate a fast beating heart that exerts high-level active forces.…”

mentioning

confidence: 99%

Personalized Treatment Planning for Heart Interventions using Tissue-Mimicking 3D Printing

Qian

Vannan

2018

J. 3D Print. Med.

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"The most important contribution of our research was the development and the validation of the novel sensor-enabled tissue-mimicking 3D printed phantom. We have demonstrated the feasibility of manufacturing such a phantom to provide not only an accurate anatomic model but also a benchtop testing platform that gives very important pathophysiologic information regarding the cardiac intervention. "Percutaneous valve treatment has been frequently targeted for 3D printing-guided preprocedural planning. In a recent study, we have developed a novel treatment planning platform using sensor-enabled tissue-mimicking 3D printing to quantitatively predict the occurrence, severity and location of paravalvular leak after transcatheter aortic valve replacement. This platform consisted of two major components: a novel tissue-mimicking 3D printing technique and an in vitro imaging-based strain quantification technique. We have demonstrated the feasibility of manufacturing, such a phantom to provide not only an accurate anatomic model but also a benchtop testing platform that gives important pathophysiologic information regarding the cardiac intervention. As cardiovascular medicine is shifting more toward personalized treatment, 3D printing will play a more important role in patient-specific planning for heart procedures. 3D printing has become a subject of great interest in the field of cardiovascular medicine. Empowered by the recent development in high-speed and high-resolution 3D imaging (e.g., the multidetector row CT technology for cardiovascular imaging), 3D printing has been used to replicate patient-specific cardiac anatomies for a variety of applications, such as physician training, patient communication and treatment planning [1]. Recent development in the multimaterial jetting technique using colorful materials of variant hardness and pliability is enabling the creation of lifelike anatomic phantoms, which provide both realistic visual representations and natural tactile sensations of the human organs.Due to the rapid growth of percutaneous treatments for valvular heart disease and the inherent complexity of the catheter-based intervention on a beating heart, percutaneous valve treatment has been frequently targeted for 3D printing-guided preprocedural planning. Transcatheter aortic valve replacement (TAVR) is an established therapeutic option for symptomatic patients with severe aortic stenosis (narrowing of the aortic valve opening) who are at high risk for surgical aortic valve replacement. Despite the fast evolution of the TAVR technology, post-TAVR paravalvular leak (PVL) is still a significant drawback and this complication occurs more often than with surgical valves [2]. Moderate-to-severe PVL after TAVR has been shown to be an independent risk factor for increased shortand long-term mortality. Even a mild PVL post-TAVR has been found to be associated with a poorer outcome [3]. Given the emerging expansion of the TAVR indication to the lower risk population, prevention of post-TAVR PVL becomes even more critica...

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Active Printed Materials for Complex Self-Evolving Deformations

Cited by 459 publications

References 23 publications

Active materials for adaptive architectural envelopes based on plant adaptation principles

Active materials for adaptive architectural envelopes based on plant adaptation principles

3D-Printed Wood: Programming Hygroscopic Material Transformations

Personalized Treatment Planning for Heart Interventions using Tissue-Mimicking 3D Printing

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