Results 31 to 40 of about 15,498 (244)

Omnidirectional transport and navigation of Janus particles through a nematic liquid crystal film

open access: yesPhysical Review Research, 2020
We create controllable active particles in the form of metal-dielectric Janus colloids which acquire motility through a nematic liquid crystal film by transducing the energy of an imposed perpendicular AC electric field.
Dinesh Kumar Sahu   +3 more
doaj   +1 more source

Active colloidal chains with cilia- and flagella-like motion

open access: yesNew Journal of Physics, 2018
It has been shown that self-assembled chains of active colloidal particles can present sustained oscillations. These oscillations are possible because the effective diffusiophoretic forces that mediate the interactions of colloids do not respect the ...
S Gonzalez, R Soto
doaj   +1 more source

ATP13A2 is involved in intracellular polyamine transport in lung epithelial cells

open access: yesFEBS Open Bio, EarlyView.
Spermidine transport in lung epithelial cells involves the polyamine transporter ATP13A2. Cell proliferation is associated with the upregulation of ATP13A2. Polyamines are present in all living cells and are implicated in various crucial cellular processes such as proliferation, apoptosis and autophagy.
Yuta Hatori   +8 more
wiley   +1 more source

Micromotors with Spontaneous Multipattern Motion and Microvortex for Enhanced “On‐the‐Fly” Molecule Enrichment

open access: yesAdvanced Intelligent Systems, 2023
“On‐the‐fly” molecule enrichment by micro/nanomotors obviously improves heterogeneous catalysis, trace detection, and environmental monitoring, yet faces challenges of the trade‐off between collection range and interaction time. Inspired by the versatile
Jinwei Lin   +5 more
doaj   +1 more source

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen   +11 more
wiley   +1 more source

Review: Interactions of Active Colloids with Passive Tracers

open access: yesCondensed Matter, 2019
Collective phenomena existing universally in both biological systems and artificial active matter are increasingly attracting interest. The interactions can be grouped into active-active and active-passive ones, where the reports on the purely active ...
Linlin Wang, Juliane Simmchen
doaj   +1 more source

Feedback-controlled active brownian colloids with space-dependent rotational dynamics

open access: yesNature Communications, 2020
Active colloidal systems can serve as an enabling platform to study complex out-of-equilibrium physical phenomena. Using a magnetic control with a feedback loop, here the authors program the dynamics of active Brownian particles by updating their ...
Miguel Angel Fernandez-Rodriguez   +6 more
doaj   +1 more source

Active colloids at fluid interfaces

open access: yesSoft Matter, 2016
If an active Janus particle is trapped at the interface between a liquid and a fluid, its self-propelled motion along the interface is affected by a net torque on the particle due to the viscosity contrast between the two adjacent fluid phases. For a simple model of an active, spherical Janus colloid we analyze the conditions under which translation ...
Malgaretti, P.   +2 more
openaire   +5 more sources

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

open access: yesAdvanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan   +2 more
wiley   +1 more source

Two-dimensional nature of the active Brownian motion of catalytic microswimmers at solid and liquid interfaces

open access: yesNew Journal of Physics, 2017
Colloidal particles equipped with platinum patches can establish chemical gradients in H _2 O _2 -enriched solutions and undergo self-propulsion due to local diffusiophoretic migration.
Kilian Dietrich   +5 more
doaj   +1 more source

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