Assembly of micro/nanomaterials into complex, three-dimensional architectures by compressive buckling
Sheng Xu,Zheng Yan,Kyung In Jang,Wen Huang,Fu Haoran,Fu Haoran,Jeonghyun Kim,Jeonghyun Kim,Zijun Wei,Matthew T. Flavin,Joselle M. McCracken,Renhan Wang,Adina Badea,Yuhao Liu,Dongqing Xiao,Guoyan Zhou,Guoyan Zhou,Jung Woo Lee,Jung Woo Lee,Ha Uk Chung,Huanyu Cheng,Huanyu Cheng,Wen Ren,Anthony Banks,Xiuling Li,Ungyu Paik,Ralph G. Nuzzo,Yonggang Huang,Yihui Zhang,Yihui Zhang,John A. Rogers +30 more
TLDR
An ingenious design strategy for the microfabrication of complex geometric 3D mesostructures that derive from the out-of-plane buckling of an originally planar structural layout is developed.Abstract:
Complex three-dimensional (3D) structures in biology (e.g., cytoskeletal webs, neural circuits, and vasculature networks) form naturally to provide essential functions in even the most basic forms of life. Compelling opportunities exist for analogous 3D architectures in human-made devices, but design options are constrained by existing capabilities in materials growth and assembly. We report routes to previously inaccessible classes of 3D constructs in advanced materials, including device-grade silicon. The schemes involve geometric transformation of 2D micro/nanostructures into extended 3D layouts by compressive buckling. Demonstrations include experimental and theoretical studies of more than 40 representative geometries, from single and multiple helices, toroids, and conical spirals to structures that resemble spherical baskets, cuboid cages, starbursts, flowers, scaffolds, fences, and frameworks, each with single- and/or multiple-level configurations.read more
Citations
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疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Printing ferromagnetic domains for untethered fast-transforming soft materials
TL;DR: 3D printing of programmed ferromagnetic domains in soft materials that enable fast transformations between complex 3D shapes via magnetic actuation are reported, enabling a set of previously inaccessible modes of transformation, such as remotely controlled auxetic behaviours of mechanical metamaterials with negative Poisson’s ratios.
Journal ArticleDOI
Recent Progress in Electronic Skin.
TL;DR: To imitate tactile sensing via e‐skins, flexible and stretchable pressure sensor arrays are constructed based on different transduction mechanisms and structural designs that can map pressure with high resolution and rapid response beyond that of human perception.
Journal ArticleDOI
Mechanical metamaterials associated with stiffness, rigidity and compressibility: a brief review
TL;DR: In this article, a clear classification of mechanical metamaterials have been established based on the fundamental material mechanics, which can be divided into strong-lightweight (E/ρ), pattern transformation with tunable stiffness, negative compressibility (−4G/3), and strong light-weight (S/ρ).
Journal ArticleDOI
Multiscale metallic metamaterials
Xiaoyu Zheng,William L. Smith,Julie A. Jackson,Bryan D. Moran,Huachen Cui,Da Chen,Jianchao Ye,Nicholas X. Fang,Nicholas Rodriguez,Todd H. Weisgraber,Christopher M. Spadaccini +10 more
TL;DR: H hierarchical metamaterials with disparate three-dimensional features spanning seven orders of magnitude, from nanometres to centimetres are demonstrated, enabled by a high-resolution, large-area additive manufacturing technique with scalability not achievable by two-photon polymerization or traditional stereolithography.
References
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疟原虫var基因转换速率变化导致抗原变异[英]/Paul H, Robert P, Christodoulou Z, et al//Proc Natl Acad Sci U S A
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Journal ArticleDOI
Rapid prototyping of microfluidic systems in poly(dimethylsiloxane)
TL;DR: A procedure that makes it possible to design and fabricate microfluidic systems in an elastomeric material poly(dimethylsiloxane) (PDMS) in less than 24 h by fabricating a miniaturized capillary electrophoresis system is described.
Journal ArticleDOI
Past achievements and future challenges in the development of three-dimensional photonic metamaterials
TL;DR: In this paper, the authors describe recent progress in the fabrication of three-dimensional metamaterial structures and discuss some of the remaining challenges, including ultra-high-resolution imaging systems, compact polarization optics and cloaking devices.
Journal ArticleDOI
Ultralight, ultrastiff mechanical metamaterials
Xiaoyu Zheng,Howon Lee,Todd H. Weisgraber,Maxim Shusteff,Joshua R. Deotte,Eric B. Duoss,Joshua D. Kuntz,Monika M. Biener,Qi Ge,Julie A. Jackson,Sergei O. Kucheyev,Nicholas X. Fang,Christopher M. Spadaccini +12 more
TL;DR: A class of microarchitected materials that maintain a nearly constant stiffness per unit mass density, even at ultralow density is reported, which derives from a network of nearly isotropic microscale unit cells with high structural connectivity and nanoscale features, whose structural members are designed to carry loads in tension or compression.
Journal ArticleDOI
Ultralight Metallic Microlattices
Tobias A. Schaedler,Alan J. Jacobsen,Anna Torrents,Adam E. Sorensen,Jie Lian,Julia R. Greer,Lorenzo Valdevit,William B. Carter +7 more
TL;DR: A route is developed for fabricating extremely low-density, hollow-strut metallic lattices that exhibit complete recovery after compression exceeding 50% strain, and energy absorption similar to elastomers and attribute these properties to structural hierarchy at the nanometer, micrometer, and millimeter scales.