Results 131 to 140 of about 12,892 (173)

Delamination of Vermiculite into Ultrahigh‐Aspect‐Ratio Nanosheets

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Efficient ion exchange allows for thermodynamically driven delamination of vermiculite into high‐aspect ratio nanosheets. The applicability of sustainable materials in the packaging industry is currently limited by the poor gas barrier performance of most biodegradable polymers.
Felix Uhlig, Alexander M. Stich, Kevin Hagmann, Sabine Rosenfeldt, Josef Breu   +4 more
wiley   +1 more source

Symmetry and stability of orientationally ordered collective motions of self-propelled, semiflexible filaments

Physical Review Research
Ordered, collective motions commonly arise spontaneously in systems of many interacting, active units, ranging from cellular tissues and bacterial colonies to self-propelled colloids and animal flocks.
Madhuvanthi Guruprasad Athani, Daniel A. Beller   +1 more
doaj   +1 more source

A Dynamic Renormalization Group Study of Active Nematics

, 2009
We carry out a systematic construction of the coarse-grained dynamical equation of motion for the orientational order parameter for a two-dimensional active nematic, that is a nonequilibrium steady state with uniaxial, apolar orientational order.
Barabási A L, Czirok A, de Gennes P G, Kosterlitz M, Ma S K, Narayan V, R Aditi Simha, Ramaswamy S, Risken H, Shradha Mishra, Sriram Ramaswamy, Toner J J   +11 more
core   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, Volume 28, Issue 9, 6 May 2026.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source

Harnessing the Orientation of Columnar Discotic Liquid Crystals for Narrowband Blue Emission with Enhanced Out‐Coupling Efficiency Toward Improvement of SP‐OLEDs Performance

Advanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
Solution‐processed OLEDs containing discotic liquid‐crystalline MR‐TADF emitters are reported. Supramolecular self‐assembly induces homeotropic columnar alignment, enforcing preferential horizontal orientation of the emitter transition dipole moment in spin‐coated films, which leads to an enhancement in the device light outcoupling efficiency while ...
Joydip De, Abhishek Kumar Gupta, Džiugas Litvinas, Francisco Tenopala‐Carmona, Matthias Lehmann, Malte C. Gather, Eli Zysman‐Colman   +6 more
wiley   +1 more source

Mitigating density fluctuations in particle-based active nematic simulations

Communications Physics
Understanding active matter has led to new perspectives on biophysics and non-equilibrium dynamics. However, the development of numerical tools for simulating active fluids capable of incorporating non-trivial boundaries or inclusions has lagged behind ...
Timofey Kozhukhov, Benjamin Loewe, Tyler N. Shendruk   +2 more
doaj   +1 more source

Machine learning topological defects in confluent tissues

Biophysical Reports
Active nematics is an emerging paradigm for characterizing biological systems. One aspect of particularly intense focus is the role active nematic defects play in these systems, as they have been found to mediate a growing number of biological processes.
Andrew Killeen, Thibault Bertrand, Chiu Fan Lee   +2 more
doaj   +1 more source

Orientation Engineering of MXene Flakes

Advanced Materials, Volume 38, Issue 25, 4 May 2026.
Orientation engineering of MXene flakes refers to the transformation of disordered MXene flakes into ordered architectures with optimized multiphysical transport properties. Focusing on this topic, this review outlines key principles, characterization, fabrication strategies, and advanced applications of oriented MXene structures.
Yizhou Wang, Shuo Li, Tianchao Guo, Dekang Zhu, Ning Chu, Noor Albar, Dana Alsulaiman, Husam N. Alshareef   +7 more
wiley   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Photosynthetically-powered phototactic active nematic liquid crystal fluids and gels

Communications Materials
One of the most ancient forms of life dating to ~3.5 billion years ago, cyanobacteria are highly abundant organisms that convert light into energy and motion, often within conjoined filaments and larger colonies that attract a great deal of interest but ...
Andrii Repula, Colin Gates, Jeffrey C. Cameron, Ivan I. Smalyukh   +3 more
doaj   +1 more source