Results 71 to 80 of about 6,969 (230)

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source

Lithography-based ceramic manufacture (LCM) of auxetic structures: present capabilities and challenges [PDF]

, 2016
Auxetic metamaterials are known for having a negative Poisson's ratio (NPR) and for displaying the unexpected properties of lateral expansion when stretched and densification when compressed.
Blas Romero, Adrián de, Díaz Lantada, Andrés, Homa, Johannes, Jellinek, Christopher, Schwentenwein, Martin   +4 more
core   +2 more sources

Deployable 3D‐Printed Vascular Stent with Surface‐Catalysed Endogenous Nitric Oxide Generation

Advanced Materials, EarlyView.
A deployable 3D‐printed vascular stent was fabricated with surface‐catalyzed endogenous nitric oxide generation, representing a promising new direction for stent development. The stent can be remotely controlled by magnetic force in its compressed state and fully deployed at the target site using an untethered heat source, potentially eliminating the ...
Kun Zhou, Zifei Han, Kang Lin, Di Wu, Siti Nur Asyura Adzlan, Qingqing Fan, Christina Cortez‐Jugo, Rona Chandrawati, Cyrille Boyer   +8 more
wiley   +1 more source

Numerical simulations of 3D metallic auxetic metamaterials in both compression and tension [PDF]

, 2016
Auxetic materials exhibit uncommon behaviour, i.e. they will shrink (expand) laterally under compression (tension). This novel feature has attracted intense research interest.
Ghaedizadeh, A, Ren, X, Shen, J, Tian, H, Xie, Y   +4 more
core   +1 more source

Homogenization of periodic auxetic materials

Procedia Engineering, 2011
AbstractMaterialspresentinganegativePoisson'sratio(auxetics)havedrawnattentionforthepasttwodecades,especiallyinthefieldoflightweightcompositestructuresandcellularmaterials.Studieshaveshownthatauxeticitymayresultinhighershearmodulus,fracturetoughnessandacousticdamping.Inthiswork,threeauxeticperiodiclatticesareconsidered ...
Dirrenberger, J., Forest, S., Jeulin, D., Colin, C.   +3 more
openaire   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source

3D Printing of Stretchable, Compressible and Conductive Porous Polyurethane for Soft Robotics

Advanced Materials Technologies, EarlyView.
A 3D‐printable porous dopamine‐polyurethane acrylate elastomer results in conductive, stretchable, and compressible structures that can be metallized in situ through catechol‐mediated silver reduction. The resulting material function as both compliant soft robot with a and strain sensors without complex assemblies, enabling fully 3D‐printed soft ...
Ouriel Bliah, Konstantin Sakharov, Pooi See Lee, Shlomo Magdassi   +3 more
wiley   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

Advanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source

The structure design and application of metamaterials with negative Poisson's ratio

EPJ Applied Metamaterials
Metamaterials with negative Poisson's ratio, also called auxetic metamaterials, are artificially engineered structures or materials that possess extraordinary auxetic effect, high shear modulus, excellent impact resistance, and remarkable energy ...
Han Xu, Tian Jiahong, Zhang Zijian, Gao Guili, Xu Xiao, Sun Kai, Fan Runhua   +6 more
doaj   +1 more source

4D Printing of NiTi Auxetic Structure with Improved Ballistic Performance

Micromachines, 2020
Auxetic structures have attracted attention in energy absorption applications owing to their improved shear modulus and enhanced resistance to indentation.
Hany Hassanin, Alessandro Abena, Mahmoud Ahmed Elsayed, Khamis Essa   +3 more
doaj   +1 more source