Results 131 to 140 of about 4,761,499 (204)

Mechanochemical topological defects in an active nematic

Physical Review E
We propose a reaction-diffusion system that converts topological information of an active nematic into chemical signals. We show that a curvature-activated reaction dipole is sufficient for creating a system that dynamically senses topology by producing a concentration field possessing local extrema coinciding with $\pm\frac{1}{2}$ defects.
Michael M. Norton, Piyush Grover
openaire   +3 more sources

Dynamics of defects in an active nematic layer [PDF]

Physical Review E, 2013
Defect dynamics in a thin active nematic layer is studied by asymptotic matching of solutions in the defect core and the far field. The analysis is facilitated by the correspondence between the two-dimensional nematic and complex scalar field models. Self-propulsion and topological interactions are identified as the primary drivers of the defect motion,
openaire   +2 more sources

Apparent Viscosity of Active Nematics in Poiseuille Flow

, 2015
A Leslie-Erickson continuum hydrodynamic for flowing active nematics has been used to characterize active particle systems such as bacterial suspensions. The behavior of such a system under a plane pressure-driven Poiseuille flow is analyzed.
Su, Jianbing, Zeng, Xiaoming, Cui, Zhenlu   +2 more
core  

Impulse‐Type Transmission Efficiency Modulation in Ferroelectric Nematic Liquid Crystals in the Nematic Phase and in Ferroelectric Nematic/Nematic Blends

Advanced Electronic Materials, Volume 12, Issue 11, 8 June 2026.
Impulse‐type transmission efficiency (TE) modulation is a widely observed phenomenon in liquid crystals (LCs) with significant polarization. This phenomenon is observable in the ferroelectric nematic (NF) and nematic (N) phase of NFLCs, as well as in a blended LC composed of NFLC and a conventional NLC.
Yuji Kinose, Takahiro Noda, Ryohei Ishige, Atsuto Momoze, Kazuki Oyama, Junji Watanabe, Yoshinobu Tsujii, Osamu Sato   +7 more
wiley   +1 more source

Mechanisms, Design Principles, and Emerging Strategies in Supramolecular Assembly‐Enabled Circularly Polarized Room‐Temperature Phosphorescence

Aggregate, Volume 7, Issue 6, June 2026.
The Graphical Abstract summarizes the key concepts of this review, covering supramolecular assembly strategies, CPP material integration, multicolor emission, information encryption, and flexible optoelectronic applications. ABSTRACT Circularly polarized luminescence (CPL) and room‐temperature phosphorescence (RTP) materials are crucial for advanced ...
Wei Zhang, Jiang‐Hai Li, Mao‐Qin Liu, Zheng‐Mei Cheng, Ye Meng, Yang Luo, Jin‐Liang Zhuang   +6 more
wiley   +1 more source

Evidence of topological charge polarization at active-passive interfaces in acoustically powered active liquid crystals

Physical Review Research
Theoretical and computational studies predict topological charge separation at active-passive interfaces in active nematics, but reliable experimental validation has been lacking.
Andrey Sokolov, Tadej Emersic, Paul Nealey, Juan de Pablo, Alexey Snezhko   +4 more
doaj   +1 more source

Soft Ferroelectrics in One Dimension: Ferroelectric Columnar Liquid Crystals

ChemPlusChem, Volume 91, Issue 6, June 2026.
Helical ferroelectric columnar liquid crystals (FCLCs) confine bistable axial polarization within individual columns. An electric field reversibly flips the macrodipole, enabling two nonvolatile states readable as “0” and “1.” This Cconcept highlights supramolecular locking and helical architectures that deliver genuine switching and long‐lived zero ...
Seongwon Park, Byoung‐Ki Cho
wiley   +1 more source

Data from numerical simulations of topological structure and dynamics of three-dimensional active nematics

, 2017
The data in this dataset are the result of numerical simulations aimed at understanding the topology and dynamics of active nematics.
Banerjee, D.(Debarghya), Vitelli, V. (Vincenzo), Toschi, F. (Federico)   +2 more
core   +2 more sources

Neutron Scattering Evidence for a Model of Dynamic Clustering in Molten Triacylglycerols

Journal of Food Process Engineering, Volume 49, Issue 6, June 2026.
Number of molecules per cluster as a function of temperature. The error bars combine uncertainties from the data and from the fit to the peak functions. (A) from D5PPP; (B) from PPP. The dotted line indicates the model predictive interval and the dash‐dot line the observation prediction interval, both at 95% confidence.
E. Pulatsu, C. Adams, N. L. Green, D. Rousseau, A. G. Marangoni, G. Mazzanti   +5 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