Results 71 to 80 of about 3,171,010 (214)
In Situ Magnetic Ordering and Microfabrication of Liquid Crystal Networks with Discretized Alignment
Advanced Functional Materials, EarlyView.Miniaturizing liquid crystal network actuators typically demands costly laser writing or digital light processing. A low‐cost photolithography platform couples rotating photomasks with a Halbach magnetic array to discretize in‐plane molecular alignment down to 50 µm, producing programmable, light‐responsive grippers, checkerboards, and origami‐inspired
Matthew Gene Scarfo +3 more
wiley +1 more source
Self-propulsive active nematics
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering SciencesIncreasing evidence suggests that active matter exhibits instances of mixed symmetry that cannot be fully described by either polar or nematic formalism. Here, we introduce a minimal model that integrates self-propulsion into the active nematic framework.
Niels de Graaf Sousa +3 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo +14 more
wiley +1 more source
Collective chemotaxis of active nematic droplets [PDF]
Physical Review E, 2020 Collective chemotaxis plays a key role in the navigation of cell clusters in, e.g., embryogenesis and cancer metastasis. Using the active nematic continuum equations, coupled to a chemical field that regulates activity, we demonstrate and explain a physical mechanism that results in collective chemotaxis.
Hughes, Rian, Yeomans, Julia M.
openaire +2 more sources
Morphodynamics of Active Nematic Fluid Surfaces
, 2023 Morphodynamic equations governing the behaviour of active nematic fluids on deformable curved surfaces are constructed in the large deformation limit. Emphasis is placed on the formulation of objective rates that account for normal deformations whilst ...
Morris, Richard G., Al-Izzi, Sami C.
core +1 more source
Communications PhysicsVarious active materials exhibit strong spatio-temporal variability of their orientational order known as active turbulence, characterised by irregular and chaotic motion of topological defects, including colloidal suspensions, biofilaments, and ...
Nika Kralj, Miha Ravnik, Žiga Kos
doaj +1 more source
Maximally mixing active nematics
Physical Review EActive nematics are an important new paradigm in soft condensed matter systems. They consist of rod-like components with an internal driving force pushing them out of equilibrium. The resulting fluid motion exhibits chaotic advection, in which a small patch of fluid is stretched exponentially in length.
Kevin A. Mitchell +5 more
openaire +3 more sources
Optical Detection of Cellular Signals at Material Interfaces
Advanced Healthcare Materials, EarlyView.Emerging functional materials are transforming optical detection of cellular signals. This review highlights optical techniques that exploit the unique optical properties of diverse materials to detect and quantify cellular electrical, chemical, and mechanical signals, and discusses key opportunities and challenges.
Xuchen Ren +5 more
wiley +1 more source
Dynamical subclasses of dry active nematics [PDF]
Physical Review E, 2019 5 pages, 4 figures.
Cai, Li-Bing +3 more
openaire +4 more sources
Bistable nematic liquid crystal device with flexoelectric switching
, 2006 Motivated generally by potential applications in the liquid crystal display industry [8,35], and specifically by recent experimental, theoretical and numerical work [6,7,13,14,21,25,30,31], we consider a thin film of nematic liquid crystal (NLC ...
RICHARDSON, Giles, CUMMINGS, L.J.
core +1 more source