Results 141 to 150 of about 4,695,040 (225)

Topology of Three-Dimensional Active Nematic Turbulence Confined to Droplets

Physical Review X, 2019
Active nematics contain topological defects that (under sufficient activity) move, create, and annihilate in a chaotic quasi-steady state, called active turbulence.
Simon Čopar, Jure Aplinc, Žiga Kos, Slobodan Žumer, Miha Ravnik   +4 more
doaj   +1 more source

Electron–Matter Interactions During Electron Beam Nanopatterning

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This article reviews the electron–matter interactions important to nanopatterning with electron beam lithography (EBL). Electron–matter interactions, including secondary electron generation routes, polymer radiolysis, and electron beam induced charging, are discussed.
Camila Faccini de Lima, Prathiba Thamizhavel, Taylor J. Woehl   +2 more
wiley   +1 more source

Orientational ordering in active nematic solids

ArXiv
In vivo and in vitro systems of cells and extra-cellular matrix (ECM) systems are well known to form ordered patterns of orientationally aligned fibers. Here, we interpret them as active analogs of the (disordered) isotropic to the (ordered) nematic phase transition seen in passive liquid crystalline elastomers.
Yang, Haiqian, Guo, Ming, Mahadevan, L.
openaire   +3 more sources

Holographic Whole‐Object Photopolymerization Preserving Director Alignment in Liquid Crystalline Actuators

Advanced Materials, Volume 38, Issue 13, 3 March 2026.
Holographic microlithography enables the fabrication of fully connected 3D liquid crystalline structures in a single exposure. The process maintains precise control over the director orientation within the entire object, preventing local director distortions typically observed in sequential printing.
Lovish Gulati, Junhee Lee, Reza Norouzikudiani, Jianfeng Li, Carlos Sánchez Somolinos, Antonio DeSimone, Kai Melde, Alexander Song, Peer Fischer   +8 more
wiley   +1 more source

Local polar order controls mechanical stress and triggers layer formation in Myxococcus xanthus colonies

Nature Communications
Colonies of the social bacterium Myxococcus xanthus go through a morphological transition from a thin colony of cells to three-dimensional droplet-like fruiting bodies as a strategy to survive starvation. The biological pathways that control the decision
Endao Han, Chenyi Fei, Ricard Alert, Katherine Copenhagen, Matthias D. Koch, Ned S. Wingreen, Joshua W. Shaevitz   +6 more
doaj   +1 more source

Active microrheology of fluids with orientational order

Condensed Matter Physics
We study the dynamics of a driven spherical colloidal particle moving in a fluid with a broken rotational symmetry. Using a nematic liquid crystal as a model, we demonstrate that when the applied force is not aligned along or perpendicular to the ...
J. S. Lintuvuori, A. Würger
doaj   +1 more source

Photothermomechanically Efficient, Low‐Cost, High‐Cycle‐Life, Hybrid MXene‐Polymer Actuators

Advanced Materials Technologies, Volume 11, Issue 5, 6 March 2026.
The addition of MXenes to elastomer‐plastic‐paper films enables the creation of easily prepared actuators that are scalable for small robotic applications. Known as MXene‐polymer Trilayer Actuators (MPTAs), they bend from UV light. Their usefulness is demonstrated through kirigami‐inspired flower‐shaped art design, parallel manipulator for waveguiding,
Ken Iiyoshi, Georgios Korres, Orsolya Nagy, Gabriel Roldán, Panče Naumov, Stefan Schramm, Mohamad Eid   +6 more
wiley   +1 more source

Development of a Cholesteric Liquid Crystal Comprising a Mesogenic Fluorophore for Circularly Polarized Luminescence With a High Dissymmetry Factor

Aggregate, Volume 7, Issue 3, March 2026.
A cholesteric liquid crystal (CLC) mixture incorporating a mesogenic fluorophore enables exceptionally high luminophore loading (∼50 wt%) while maintaining LC alignment, leading to circularly polarized luminescence with a high dissymmetry factor (|glum| = 1.25) even in thin cells (2 µm).
Yuuto Iida, Masayuki Gon, Hiroyuki Yoshida, Kazuo Tanaka, Gen‐Ichi Konishi   +4 more
wiley   +1 more source

Residual Chemical Shift Anisotropies in the Structure Determination of Small Molecules

Magnetic Resonance in Chemistry, Volume 64, Issue 3, Page 286-311, March 2026.
Plasma neutrophil elastase(ELANE) was markedly elevated in patients with alcohol use disorder, indicating a dysregulated protease‐antiprotease inflammatory balance characterised by decreased SERPINA3. ELANE showed excellent diagnostic specificity(AUC = 0.8683), supporting its potential utility as a neuroinflammatory biomarker for AUD.
Nilamoni Nath, Juan Carlos Fuentes Monteverde, Swaraj Pathak, Christian Griesinger   +3 more
wiley   +1 more source

Self‐Assembled Nanostructured Microgels with Reconfigurable Morphologies

Small, Volume 22, Issue 15, 12 March 2026.
This work presents bent‐core amphiphiles that self‐assemble into fibrillar, tubular, and helical nanofiber‐like nanostructures, forming organogels that can be emulsified into water as nanostructured microgels. These droplets preserve internal architectures and, when combined with fluorocarbon oils, yield multicompartment emulsions with dynamically ...
Cristina Álvarez‐Solana, Alberto Concellón, M. Blanca Ros   +2 more
wiley   +1 more source