Results 141 to 150 of about 3,142,115 (200)

Electrohydrodynamically Driven Broadband and Color‐Shifting in Cholesteric Liquid Crystals

Advanced Optical Materials, Volume 14, Issue 33, 4 September 2026.
Ion‐driven electrohydrodynamic effects enable dynamic photonic bandgap modulation in cholesteric liquid crystals under low‐frequency AC driving. By regulating ion‐mediated disturbance of the helical structure, this approach produces two reversible optical responses: rapid color shifting across the visible spectrum and broadband reflection spanning the ...
Cheng‐Kuan Wu, Jin‐Yu Chen, Li‐Min Chang, Cheng‐Chang Li, Kuan‐Wu Lin, Duan‐Yi Guo, Tsung‐Hsien Lin   +6 more
wiley   +1 more source

On the temperature of an active nematic

We employ a novel hydrodynamic framework for active matter coupled to an environment to study the local temperature of an active nematic, assuming proximity to thermal equilibrium. We show that, due to the mechanosensitivity of fuel consumption, linearized temperature correlations in a homogeneous active nematic steady state remain unaffected by ...
Armas, Jay, Jain, Akash, Lier, Ruben
openaire   +2 more sources

Active actions: effective field theory for active nematics

, 2023
Active matter consumes energy from the environment and transforms it into mechanical work. Notable examples from biology include cell division, bacterial swarms, and muscle contraction.
Landry, Michael J.
core  

Chiral‐Induced Spin Selectivity Effect in a 1 nm Thin 1,1′‐Binaphthyl‐2,2′‐diyl Hydrogenphosphate Self‐Assembled Monolayer on Nickel Oxide

Advanced Science, Volume 13, Issue 52, 18 September 2026.
A self‐assembled monolayer (≈0.9 nm) of an axially chiral binaphthol phosphoric acid derivative on a ferromagnetic Ni/NiOx substrate shows chiral‐induced spin selectivity (CISS) magnetoresistance of 50%–80%. This thermally and chemically robust functional stack shows the way towards practical spintronic devices based on the CISS effect.
Abin Nas Nalakath, Christian Pfeiffer, Anu Gupta, Franziska Schölzel, Michael Zharnikov, Georgeta Salvan, Ron Naaman, Marc Tornow, Peer Kirsch   +8 more
wiley   +1 more source

Multilayer Mechanical Transduction Activates Compression‐Mode Mechano‐Optical Response in Chiral Nematic Liquid Crystal Elastomers

Aggregate, Volume 7, Issue 9, September 2026.
Multilayer chiral nematic liquid crystal elastomer films convert compressive loading into optically active deformation through compression‐to‐tension mode conversion. Compliant PDMS layers mediate in‐plane expansion and thickness reduction of the photonic elastomer, producing reversible color shifts under compression.
Ryota Morimoto, Maki Ogata, Kohsuke Matsumoto, Kazuhiro Shimonomura, Osamu Tsutsumi   +4 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

Chirality, anisotropic viscosity and elastic anisotropy in three-dimensional active nematic turbulence

Communications Physics
Various 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

Enhanced Actuation Stability of Liquid Crystal Elastomer Actuators With Diels–Alder Dynamic Bonds

Small, Volume 22, Issue 53, 21 September 2026.
By leveraging furan substitution, enhanced thermal stability during actuation of liquid crystal elastomers (LCEs) with Diels–Alder dynamic (DA) bonds was achieved. This work demonstrates that 3‐substituted furan broadens the actuation window of LCEs with DA bonds and enables superior thermomechanical stability and cycling performance at elevated ...
Konstantinos Stamatis, Yoo Jin Lee, Asaf Dana, Manivannan Sivaperuman Kalairaj, Caleb A. Crusco, Jared A. Gibson, Sasha M. George, Svetlana A. Sukhishvili, Taylor H. Ware   +8 more
wiley   +1 more source

One million scans later: the evolution of the I16 material and magnetism beamline at Diamond Light Source

Journal of Synchrotron Radiation, Volume 33, Issue 5, Page 1575-1588, September 2026.
Beamline I16 at Diamond Light Source is a versatile X‐ray scattering instrument that combines tunable X‐ray energy and polarization, flexible diffraction geometries, and advanced sample environments for studies of electronic, magnetic, and structural phenomena.Here, we review the capabilities of beamline I16 at Diamond Light Source after nearly 20 ...
Aly H. Abdeldaim, Rebecca Scatena, James Hawkins, Gareth Nisbet, Daniel G. Porter, Graeme Barlow, Andy Marshall, Brian Nutter, Guillaume Beutier, Stephen P. Collins, Alessandro Bombardi   +10 more
wiley   +1 more source

Variational formulation of active nematic fluids: theory and simulation

New Journal of Physics
The structure and dynamics of important biological quasi-two-dimensional systems, ranging from cytoskeletal gels to tissues, are controlled by nematic order, flow, defects and activity.
W Mirza, A Torres-Sánchez, G Vilanova, Marino Arroyo   +3 more
doaj   +1 more source