Results 101 to 110 of about 134 (132)

Improve the Thermal Conductivity, Insulation Performance and Mechanical Properties of Silicone Rubber by Constructing EG‐PDA‐Cu Hybrid Nanoparticles

Journal of Polymer Science, EarlyView.
In this work, a novel expanded graphite‐supported nano‐copper polydopamine composite was designed and synthesized. The procedure involved first modifying EG via a mussel‐inspired technique to deposit a polydopamine coating, after which Cu2+ ions were reduced to immobilize copper nanoparticles onto the EG‐PDA substrate.
Xingrong Liu, Fan Xia, Dietmar Auhl
wiley   +1 more source

Repeated Pleistocene Permafrost Episodes in the Western Pannonian Basin

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Concerning the study of past periglacial processes, the Pannonian Basin is a key area as it contains the southernmost frost polygons found in Central Europe. The presence or absence of permafrost is still, however, a matter of debate, and data on the timing of frost action are also scarce.
Krisztina Sebe, Ágnes Novothny, Gergely Surányi, Barbara Varga, László Fodor, Gábor Csillag   +5 more
wiley   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

Small, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira, Hiroshi Kamizawa, Yujiro Hamada, Wataru Fushimoto, Hiroshi Y. Yoshikawa, Yuji Higaki, Atsushi Takahara, Takeshi Mori, Yoshiki Katayama, Akihiro Kishimura   +9 more
wiley   +1 more source

Polysulfide Immobilization and Sulfur Conversion Kinetics Promotion via a Tetrathiafulvalene–Crown Ether COF@Graphene Layer for High‐Rate Lithium–Sulfur Batteries

Small, EarlyView.
A polysulfide‐regulating covalent organic framework (TUS‐44) integrating tetrathiafulvalene and crown‐ether linkers forms an electron‐delocalized, ion‐coordinative network that synergistically mediates Li–S redox chemistry. When interfaced with graphene, the TUS‐44@G layer functions as a catalytic and chemisorptive interface, enabling efficient ...
Kai Sun, Tsukasa Irie, Samim Reza, Kohki Sasaki, Mika Nozaki, Tokuhisa Kawawaki, Yujun Fu, Dequan Liu, Ranjit Thapa, Saikat Das, Deyan He, Yuichi Negishi   +11 more
wiley   +1 more source

Gravity‐Driven Assembly Dynamics of Liquid Metal Microdroplets for Functional Composite Films

Small, EarlyView.
This article presents a new understanding of the gravitational settling of liquid metal microdroplets in polymer resin films. It employs an experimental and analysis platform for quantification of the process‐structure relationships to inform the dynamics of gravity‐driven assembly in soft circuit architectures. ABSTRACT Liquid metal (LM) microdroplets
Brittan T. Wilcox, Ryan C. Rothermel, Michael D. Bartlett   +2 more
wiley   +1 more source

Topology‐Encoded Charge Polarity Governs Multiphase Organization in Intrinsically Disordered Protein Polymer Condensates

Small, EarlyView.
Electrostatic topology is shown to program phase separation and internal organization in thermoresponsive intrinsically disordered protein polymer (IDPP) condensates. By comparing oppositely charged IDPPs with a covalent diblock, chain connectivity is revealed to control charge compensation, dense‐phase micropolarity, miscibility, and apparent acid ...
Julio Fernández‐Fernández, Vicente Domínguez‐Arca, Raúl Escribano, Sheila Lorenzo, Sergio Ferrero, Sergio Acosta, José Carlos Rodríguez‐Cabello   +6 more
wiley   +1 more source

Biomimetic and Gel‐Mediated Tissue Adhesive Structures for Skin Conformal and Multifunctional Bioelectronics

Small, EarlyView.
Inspired by octopus suction structures, a biomimetic epidermal electrode is developed as a durable, skin‐conformal platform for next‐generation wearable and therapeutic bioelectronics. The electrodes exhibit skin‐matching mechanical properties and achieve strong, reusable adhesion on wet skin, outperforming commercial electrodes by maintaining adhesion
Jia Xi Mary Chen, Mehal Kushalkar, Stephanie DiNunzio, Tianhao Chen, Weiqing Fang, Rui Yang Liu, Milos R. Popovic, Hani E. Naguib   +7 more
wiley   +1 more source

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

Structural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Convergent‐beam X‐ray crystallography

Journal of Applied Crystallography, EarlyView.
Molecular crystal diffraction with a highly focused X‐ray beam decouples crystal morphology and molecular structure by measuring magnified topographs from every reflection.Molecular and polymeric crystals show a wide range of functional properties that arise from the interplay between the atomic‐scale structure of their constituent molecules and the ...
Chufeng Li, Margarita Zakharova, Mauro Prasciolu, Jia Chyi Wong, Holger Fleckenstein, Nikolay Ivanov, Wenhui Zhang, Mansi Butola, J. Lukas Dresselhaus, Ivan De Gennaro Aquino, Dmitry Egorov, Philipp Middendorf, Alessa Henkel, Bjarne Klopprogge, Lars Klemeyer, Tobias Beck, Oleksandr Yefanov, Miriam Barthelmess, Janina Sprenger, Dominik Oberthuer, Saša Bajt, Henry N. Chapman   +21 more
wiley   +1 more source