Results 91 to 100 of about 14,598 (259)

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

Advanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak, Changgyun Moon, Hyun‐Bin Yu, Sunkook Kim, Dong‐Hwan Kim   +4 more
wiley   +1 more source

Strain‐Driven Surface Reconstruction During the Alkaline Oxygen Evolution Reaction: a Model Thin‐Film Study

Advanced Materials, EarlyView.
ABSTRACT Dynamic surface reconstruction critically governs the performance and durability of oxide‐based electrocatalysts for the oxygen evolution reaction (OER), yet controlling this process under operating conditions remains challenging. Here, we demonstrate that lattice strain regulates the extent of surface reconstruction in perovskite oxides by ...
Yong Beom Kim, Jeong Jin Lee, Jeongah Lee, Yeongtaek Hong, San Kwak, WooChul Jung   +5 more
wiley   +1 more source

Selective laser sintering fabrication of nano-hydroxyapatite/poly-ε-caprolactone scaffolds for bone tissue engineering applications

International Journal of Nanomedicine, 2013
Yan Xia,1,* Panyu Zhou,1,* Xiaosong Cheng,1,* Yang Xie,1,* Chong Liang,2 Chao Li,1 Shuogui Xu1,2 1Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China; 2Department of Neurosurgery, The
Xia Y, Zhou PY, Cheng XS, Xie Y, Liang C, Li C, Xu SG   +6 more
doaj  

White‐Light Emission in Zeolitic Imidazolate Framework Glasses

Advanced Materials, EarlyView.
Broadband blue emission is discovered in ZIF‐62 through vitrification and hot‐pressing. This emission is significantly enhanced and redshifted when the ZIF‐62 glass is annealed above the critical temperature (1.07Tg), being attributed to an enhancement of ligand‐to‐ligand charge transfer.
Zhencai Li, Zihao Wang, Huotian Zhang, Xuan Ge, Ivan Hung, Bozhao Yin, Fengming Cao, Pritam Banerjee, Tianzhao Xu, Lars R. Jensen, Joerg Jinschek, Morten M. Smedskjaer, Zhehong Gan, Laurent Calvez, Guoping Dong, Jianbei Qiu, Donghong Yu, Feng Gao, Haomiao Zhu, Yuanzheng Yue   +19 more
wiley   +1 more source

Versatile Magneto‐Dielectric Response of Epitaxial Thin Films of the High Entropy Oxide Perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3

Advanced Materials, EarlyView.
The magnetic high entropy oxide perovskite Nd(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 exhibits a substantially large dielectric constant (εr) at room temperature, which shows distinct anionic and cationic contributions in the form of zero and finite bias peaks, respectively, down to its magnetic transition temperature (Tmag).
Roxana Capu, Ryan Thompson, C. Willem Rischau, Marli R. Cantarino, Premysl Marsik, Sergey L. Bud'ko, Neven Biškup, María Varela, Yurii G. Pashkevich, Serhii M. Orel, Thomas Prokscha, Andreas Suter, Jiangtao Zhao, Ugwumsinachi Oji, Marco Bonura, Peter Bencok, Zaher Salman, Stefano Gariglio, Christian Bernhard, Subhrangsu Sarkar   +19 more
wiley   +1 more source

Optimizing Sintering Conditions for Y₂O₃ Ceramics: A Study of Atmosphere-Dependent Microstructural Evolution and Optical Performance

Ceramics
This paper systematically investigated the influence of sintering atmospheres, vacuum, and oxygen, on the microstructure and optical properties of Y2O3 ceramics.
Xueer Wang, Dongliang Xing, Ying Wang, Jun Wang, Jie Ma, Peng Liu, Jian Zhang, Dingyuan Tang   +7 more
doaj   +1 more source

Surface Passivation of HgTe Nanocrystals Enabling EG/2 Open‐Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection

Advanced Materials, EarlyView.
This article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Albin Colle, Clement Gureghian, Dario Mastrippolito, Mariarosa Cavallo, Jiho Roh, Marco Paye, Tommaso Gemo, Diogo Almeida, Adrien Khalili, Yoann Prado, Xavier Lafosse, Sandrine Ithurria, Mathieu G. Silly, Pavel Dudin, James K. Utterback, José Avila, Debora Pierucci, Emmanuel Lhuillier   +17 more
wiley   +1 more source

Additive Manufacturing for Automotive Radar Sensors Using Copper Inks and Pastes

Applied Sciences
Radar sensors are critical for obstacle detection and navigation, especially for automated driving. Using the use-case “printing of heating coils on the inside of the front housing (primary radome)” needed for de-icing in winter, it is demonstrated that ...
Nihesh Mohan, Fabian Steinberger, Sonja Wächter, Hüseyin Erdogan, Gordon Elger   +4 more
doaj   +1 more source

Crack Repair in Hydroxyapatite Bioceramics Using an Ultraviolet Ultrafast Laser

Advanced Materials Interfaces, EarlyView.
The study proposes an ultrafast ultraviolet laser approach to repair hidden tooth cracks, which has been preliminarily validated on HAP. Moreover, this technique aims to strengthen the native enamel structure rather than introducing a foreign filling material.
Yan Xue, Kai Zheng, Yang Liao, Jing Cao, Xupeng Yuan, Fusong Yuan, Yuxin Leng   +6 more
wiley   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source