Engineered Elastomer Substrates for Guided Assembly of Complex 3D Mesostructures by Spatially Nonuniform Compressive Buckling

Nan, Kewang; Luan, Haiwen; Yan, Zheng; Ning, Xin; Wang, Yiqi; Wang, Ao; Wang, Juntong; Han, Mengdi; Chang, Matthew; Li, K.; Zhang, Yutong; Huang, Wen; Xue, Yeguang; Huang, Yonggang; Zhang, Yihui; Rogers, John A.

doi:10.1002/adfm.201604281

Cited by 56 publications

(48 citation statements)

References 66 publications

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“…First, with carefully configured residual‐stress layers, complex buckling modes can produce previously inaccessible 3D structures . Second, elastomeric substrates with engineered distributions of thickness yield desired strain distributions, and thus complex 3D structures were obtained by compressive buckling . It is worth noting that the driving force may not come from the substrate at all.…”

Section: Nanomembrane Origamimentioning

confidence: 99%

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Huang

Mei

2018

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Nanoscience and nanotechnology offer great opportunities and challenges in both fundamental research and practical applications, which require precise control of building blocks with micro/nanoscale resolution in both individual and mass-production ways. The recent and intensive nanotechnology development gives birth to a new focus on nanomembrane materials, which are defined as structures with thickness limited to about one to several hundred nanometers and with much larger (typically at least two orders of magnitude larger, or even macroscopic scale) lateral dimensions. Nanomembranes can be readily processed in an accurate manner and integrated into functional devices and systems. In this Review, a nanotechnology perspective of nanomembranes is provided, with examples of science and applications in semiconductor, metal, insulator, polymer, and composite materials. Assisted assembly of nanomembranes leads to wrinkled/buckled geometries for flexible electronics and stacked structures for applications in photonics and thermoelectrics. Inspired by kirigami/origami, self-assembled 3D structures are constructed via strain engineering. Many advanced materials have begun to be explored in the format of nanomembranes and extend to biomimetic and 2D materials for various applications. Nanomembranes, as a new type of nanomaterials, allow nanotechnology in a controllable and precise way for practical applications and promise great potential for future nanorelated products.

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Section: Nanomembrane Origamimentioning

confidence: 99%

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Huang

Mei

2018

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“…It is worth mentioning that, although the self‐folding behavior of bilayers is often thought to be one involving simple unidirectional bending,[39] the nature of bilayer morphing strongly depends on its geometric parameters and structural instabilities. [40–42] We rely on a finite element modeling (FEM)[43–47] guided approach as the FE models enable us to understand the mechanics behind the bilayer shape transformation behavior and the relationships between initial geometries, applied stimulus, and transformed shapes. We also fabricate millimeter‐scaled hinge‐less poly(dimethylsiloxane) (PDMS) bilayers with different cross‐linking densities (Figure S1, Supporting Information) and transform them into complex 3D configurations such as those representing letters from the Roman alphabet, quasi‐axisymmetric flower petal‐like structures, and open/ closed polyhedral architectures with varying number of faces (through solvent‐induced swelling experiments).…”

Section: Introductionmentioning

confidence: 99%

Kirigami‐Inspired Self‐Assembly of 3D Structures

Abdullah

Rogers

et al. 2020

Adv Funct Materials

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Self‐assembly of 3D structures presents an attractive and scalable route to realize reconfigurable and functionally capable mesoscale devices without human intervention. A common approach for achieving this is to utilize stimuli‐responsive folding of hinged structures, which requires the integration of different materials and/or geometric arrangements along the hinges. It is demonstrated that the inclusion of Kirigami cuts in planar, hingeless bilayer thin sheets can be used to produce complex 3D shapes in an on‐demand manner. Nonlinear finite element models are developed to elucidate the mechanics of shape morphing in bilayer thin sheets and verify the predictions through swelling experiments of planar, millimeter‐scaled PDMS (polydimethylsiloxane) bilayers in organic solvents. Building upon the mechanistic understandings, The transformation of Kirigami‐cut simple bilayers into 3D shapes such as letters from the Roman alphabet (to make “ADVANCED FUNCTIONAL MATERIALS”) and open/closed polyhedral architectures is experimentally demonstrated. A possible application of the bilayers as tether‐less optical metamaterials with dynamically tunable light transmission and reflection behaviors is also shown. As the proposed mechanistic design principles could be applied to a variety of materials, this research broadly contributes toward the development of smart, tetherless, and reconfigurable multifunctional systems.

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“…In this technique, dynamic control of the interfacial adhesion between the stamp and the object to be transferred plays a crucial role in completing successful transfer printing. As shown in Table 1 , several strategies for adhesion control of transfer printing technique have been proposed and applied in the stretchable bioelectronics fabrication (e.g., complex 3D mesostructures,14, 15, 16, 17, 18, 19, 20 wireless biomedical devices,17, 21, 22, 23, 24, 25, 26, 27 and epidermal sensor systems23, 28, 29, 30, 31, 32, 33, 34, 35). …”

Section: Introductionmentioning

confidence: 99%

Thermal Release Transfer Printing for Stretchable Conformal Bioelectronics

et al. 2017

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Soft neural electrode arrays that are mechanically matched between neural tissues and electrodes offer valuable opportunities for the development of disease diagnose and brain computer interface systems. Here, a thermal release transfer printing method for fabrication of stretchable bioelectronics, such as soft neural electrode arrays, is presented. Due to the large, switchable and irreversible change in adhesion strength of thermal release tape, a low‐cost, easy‐to‐operate, and temperature‐controlled transfer printing process can be achieved. The mechanism of this method is analyzed by experiments and fracture‐mechanics models. Using the thermal release transfer printing method, a stretchable neural electrode array is fabricated by a sacrificial‐layer‐free process. The ability of the as‐fabricated electrode array to conform different curvilinear surfaces is confirmed by experimental and theoretical studies. High‐quality electrocorticography signals of anesthetized rat are collected with the as‐fabricated electrode array, which proves good conformal interface between the electrodes and dura mater. The application of the as‐fabricated electrode array on detecting the steady‐state visual evoked potentials research is also demonstrated by in vivo experiments and the results are compared with those detected by stainless‐steel screw electrodes.

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Engineered Elastomer Substrates for Guided Assembly of Complex 3D Mesostructures by Spatially Nonuniform Compressive Buckling

Cited by 56 publications

References 66 publications

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Kirigami‐Inspired Self‐Assembly of 3D Structures

Thermal Release Transfer Printing for Stretchable Conformal Bioelectronics

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