Results 61 to 70 of about 157,314 (198)

A New Class of Positive Semi-definite Tensors [PDF]

arXiv, 2016
In this paper, a new class of positive semi-definite tensors, the MO tensor, is introduced. It is inspired by the structure of Moler matrix, a class of test matrices. Then we focus on two special cases in the MO-tensors: Sup-MO tensor and essential MO tensor. They are proved to be positive definite tensors.
arxiv  

Spray‐Assisted Fabrication of Cellulose Photonic Pigments on Superhydrophobic Surfaces

Advanced Materials, EarlyView.
A method to directly produce structurally colored microparticles by drying cholesteric cellulose nanocrystal microdroplets on a superhydrophobic surface is reported. This approach has several key advantages that can unlock large‐scale fabrication of sustainable photonic pigments, including exploiting existing industrial techniques (e.g. aerosolization),
Jianing Song, Richard M. Parker, Bruno Frka‐Petesic, Tao Deng, Luqing Xu, Xu Deng, Silvia Vignolini, Qingchen Shen   +7 more
wiley   +1 more source

Revisiting the “Stick‐Slip” Process via Magnetism‐Coupled Flexible Sensors with Bioinspired Ridge Architecture

Advanced Materials, EarlyView.
A sandwich‐like device for stick‐slip perception is developed, featuring a deformable bioinspired ridge layer with capability of lateral deformation and fast recovery. Coupled with magnetized functionality, the morphological transformation is capable to induce periodical electrical pulses which allows to revisit the stick‐slip process when human ...
Dan Fang, Sen Ding, Yuhan Liu, Qian Zhou, Biao Qi, Bing Ji, Bingpu Zhou   +6 more
wiley   +1 more source

Recent Advances in Wide‐Bandgap Perovskite Solar Cells

Advanced Materials, EarlyView.
Ubiquitous defects predominately account for photo‐instability and open‐circuit voltage losses in wide‐bandgap perovskite solar cells (WBG PSCs). This review comprehensively presents the underlying impact mechanisms, summarizes the advanced optimization strategies across various functional layers and their interfaces to develop efficient and stable WBG
Jianjun Mei, Feng Yan
wiley   +1 more source

DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications

Advanced Materials, EarlyView.
DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding, Bing Liu, Andreas Peil, Sisi Fan, Jie Chao, Na Liu   +5 more
wiley   +1 more source

Electrospinning and Nanofiber Technology: Fundamentals, Innovations, and Applications

Advanced Materials, EarlyView.
This review explores electrospinning fundamentals, methods for synthesizing polymer, metal oxide, carbon, and composite nanofibers, and advancements in fiber architectures like porous, core–shell, and aligned structures. It highlights applications in functional membranes, sensors, energy systems, and catalyst design while addressing future ...
Yujang Cho, Jong Won Beak, Mingyu Sagong, Seongcheol Ahn, Jong Seok Nam, Il‐Doo Kim   +5 more
wiley   +1 more source

Transforming Healthcare: Intelligent Wearable Sensors Empowered by Smart Materials and Artificial Intelligence

Advanced Materials, EarlyView.
Wearable sensors, empowered by AI and smart materials, revolutionize healthcare by enabling intelligent disease diagnosis, personalized therapy, and seamless health monitoring without disrupting daily life. This review explores cutting‐edge advancements in smart materials and AI‐driven technologies that empower wearable sensors for diagnostics and ...
Shuwen Chen, Shicheng Fan, Zheng Qiao, Zixiong Wu, Baobao Lin, Zhijie Li, Michael A. Riegler, Matthew Yu Heng Wong, Arve Opheim, Olga Korostynska, Kaare Magne Nielsen, Thomas Glott, Anne Catrine T. Martinsen, Vibeke H. Telle‐Hansen, Chwee Teck Lim   +14 more
wiley   +1 more source

Proposing Altermagnetic‐Ferroelectric Type‐III Multiferroics with Robust Magnetoelectric Coupling

Advanced Materials, EarlyView.
Multiferroics are highly sought after for advanced technological applications. Here, a novel class of type‐III multiferroics is proposed, where ferroelectricity and altermagnetism are inherently interlocked by crystal symmetry, setting them apart from conventional multiferroics. The ferroelectric switching is shown to fully invert the spin polarization
Wei Sun, Changhong Yang, Wenxuan Wang, Ying Liu, Xiaotian Wang, Shifeng Huang, Zhenxiang Cheng   +6 more
wiley   +1 more source

Research on the Evolution of Defects Initiation and the Diffusion of Dopant on the Si/SiO2 Interface

Advanced Materials Interfaces, EarlyView.
This review mainly introduces the recent investigations on the mechanisms of interface defect initiation and dopant diffusion, and the comparisons and discussions of the initial mechanism of defects, structures of defects to provide valuable guidance for improving the performance and extending the lifespan of Si/SiO2 interfaces.
Yunqi Yang, Dongdong Chen, Di Li, Tianlong Zhao, Weida Zhang, Wen Qiao, Yingjie Liang, Yintang Yang   +7 more
wiley   +1 more source

Deploying Partially Cross‐Linked Elastomers to Optimize Adhesion for Long‐Term Surface Electromyography Electrodes

Advanced Materials Interfaces, EarlyView.
A novel approach using partially cross‐linked elastomers with conductive carbon black achieves long‐term adhesion and high‐quality signal capture for surface electromyography (sEMG) electrodes. The optimized electrodes demonstrate excellent skin compliance, robust performance through repeated use, and potential applications in wearable biomedical ...
Yuqi Wang, Xi Wang, Leif Sandsjö, Xuqing Liu, Li Guo   +4 more
wiley   +1 more source