Results 1 to 10 of about 4,761,499 (204)

Dynamics of Ring Disclinations Driven by Active Nematic Shells

Frontiers in Physics, 2019
When dispersed in thermotropic nematic liquid crystal oils, surfactant-ladden aqueous droplets often lead to the formation of a equatorial ring disclination in the nearby nematic matrix as a result of a balance between elasticity and interfacial energy ...
Jérôme Hardoüin, Jérôme Hardoüin, Pau Guillamat, Pau Guillamat, Pau Guillamat, Francesc Sagués, Francesc Sagués, Jordi Ignés-Mullol, Jordi Ignés-Mullol   +8 more
doaj   +1 more source

Liquid Crystal Polymers as Intrinsically Magnetic and Programmable Soft Materials for Microrobotics

Small, EarlyView.
Liquid crystal polymers (LCPs) are proposed as intrinsically magnetic, programmable, soft materials for microrobotics. Magnetic torque‐driven manipulation of LCP microobjects is achieved and characterized in terms of the step‐out frequency, reaching ∼0.6 Hz in a ∼250 mT magnetic field. The orientation of LCP microobjects in the magnetic field and their
Alexandra Gruzdenko, Ignacio Becerra Osorio, Max de Sain, Albert P. H. J. Schenning, Jaap M. J. den Toonder, Michael G. Debije   +5 more
wiley   +1 more source

The self-organized structure of glioma oncostreams and the disruptive role of passive cells

Scientific Reports
Oncostreams are self-organized structures formed by spindle-like, elongated, self-propelled cells recently described in glioblastomas and especially in gliosarcomas.
Lucas Barberis, Carlos A. Condat, Syed M. Faisal, Pedro R. Lowenstein   +3 more
doaj   +1 more source

Kinetic Theory of Self-Propelled Particles with Nematic Alignment

Entropy
We present the results from kinetic theory for a system of self-propelled particles with alignment interactions of higher-order symmetry, particularly nematic ones. To this end, we use the Landau equation approach, a systematic approximation to the BBGKY
Horst-Holger Boltz, Benjamin Kohler, Thomas Ihle   +2 more
doaj   +1 more source

Smart cellulose‐based room temperature phosphorescent materials: From mechanisms to construction strategies and applications

Smart Molecules, EarlyView.
This review elucidates the photophysical mechanisms of cellulose‐based room temperature phosphorescent materials and systematically outlines their construction strategies, such as cluster emission center engineering. This article demonstrates their applications in fields like information encryption and bioimaging, and looks ahead to the core challenges
Shasha Wu, Yifan Zhou, Wanjin Wu, Yan Tang, Mengfan Jing, Jianyu Zhang, Haoke Zhang, Zheng Zhao, Junwei Wang, Laurent Maron, Lijie Liu   +10 more
wiley   +1 more source

Automated Identification of Thermal Transitions in Conjugated Material Thin Films Using In Situ Optical Spectroscopy

Small Methods, EarlyView.
This study demonstrates the effectiveness of in situ UV−vis coupled with automated data analysis, namely, ATLAS, for fast and reliable identification of multiple thermal transition in conjugated polymer thin films. This ATLAS method will significantly accelerate the understanding of the phase behavior of D‐A polymers with important implications for ...
Doan Vu, Martyn Jevric, Alireza Samadani, Mats R. Andersson, Christopher R. McNeill, Brendan T. O'Connor, Harald Ade   +6 more
wiley   +1 more source

The importance of being discrete: fluctuations, defects, and density-orientation coupling in agent-based active nematics

New Journal of Physics
We propose an agent-based model of active flexible rods. Inspired by cytoskeletal flows, we introduce activity by an internal flow that contributes to the dissipative forces.
M Dedenon, C Blanch-Mercader, K Kruse, J Elgeti   +3 more
doaj   +1 more source

Delamination of Vermiculite into Ultrahigh‐Aspect‐Ratio Nanosheets

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 9, 3 June 2026.
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

Actuation of Cell Layers in Three Dimensions

Advanced Materials, Volume 38, Issue 34, 17 June 2026.
ABSTRACT The alignment of fibers and cells in living tissues affect their mechanical properties and functionality. In this context, one can draw an analogy between tissues and nematic liquid crystal elastomers. We explore this analogy by growing fibroblasts on 2D‐patterned substrates and observing the contraction of cell sheets upon detachment from the
Kirsten Endresen, Aniruddh Murali, Birte C. Geerds, Grecia M. Valenzuela Portillo, Maria Bloksgaard, Daniel J.G. Pearce, Francesca Serra   +6 more
wiley   +1 more source

Topological Point Defects in SmC* Liquid Crystals Under Mechanical Disturbance

Advanced Materials Interfaces, Volume 13, Issue 11, 9 June 2026.
Tangetial air jet shear inducess island formation and nucleates topological point defects in uniform SmC films. Island bounded by edge dislocation loops shrink and transform into isolated point defects under continued shear. Mechanical perturbatio provides a controllable route for defect engineering in smectric liquid crystal thin films.
Gunganist Kongklad, Vandana Molahalli, Apichart Pattanaporkratana, Nattaporn Chattham   +3 more
wiley   +1 more source