Results 1 to 10 of about 51,701 (266)

Smooth Critical Dimension Compensation Across Photomask Transmittance Discontinuities Enabled by Selective and Direct Laser Patterning Inside Mask [PDF]

open access: yesMicromachines
A selective laser patterning technique applied inside photomasks as a practical method to mitigate critical-dimension non-uniformity caused by overexposure in large-area lithography systems with segmented illumination was investigated.
Dabin Park   +3 more
doaj   +2 more sources

Micropatterning of cells via adjusting surface wettability using plasma treatment and graphene oxide deposition.

open access: yesPLoS ONE, 2022
The wettability of a polymer surface plays a critical role in cell-cell interaction and behavior. The degree to which a surface is hydrophobic or hydrophilic affects the adhesion and behavior of cells.
Nosayba Al-Azzam, Anas Alazzam
doaj   +2 more sources

Viscoelastic Thermovibrational Flow Driven by Sinusoidal and Pulse (Square) Waves

open access: yesFluids, 2021
The present study aims to probe the role of an influential factor heretofore scarcely considered in earlier studies in the field of thermovibrational convection, that is, the specific time-varying shape of the forcing used to produce fluid motion under ...
Marcello Lappa, Alessio Boaro
doaj   +1 more source

Patterning Behavior of Hybrid Buoyancy-Marangoni Convection in Inclined Layers Heated from Below

open access: yesFluids, 2022
Alongside classical effects driven by gravity or surface tension in non-isothermal fluids, the present experimental study concentrates on other exotic (poorly known) modes of convection, which are enabled in a fluid layer delimited from below by a hot ...
Wasim Waris, Marcello Lappa
doaj   +1 more source

The Zoo of Modes of Convection in Liquids Vibrated along the Direction of the Temperature Gradient

open access: yesFluids, 2021
Thermovibrational flow can be seen as a variant of standard thermogravitational convection where steady gravity is replaced by a time-periodic acceleration.
Georgie Crewdson, Marcello Lappa
doaj   +1 more source

On the Propagation of Hydrothermal Waves in a Fluid Layer with Two-Way Coupled Dispersed Solid Particles

open access: yesFluids, 2022
The propagation of hydrothermal waves in a differentially heated shallow open cavity filled with a complex fluid (a mixture of an oil with solid spherical metallic particles) is investigated in the framework of a hybrid numerical two-way coupled Eulerian–
Marcello Lappa
doaj   +1 more source

Topographically Controlled Marangoni-Rayleigh-Bénard Convection in Liquid Metals

open access: yesFluids, 2021
Convection induced in a layer of liquid with a top free surface by a distribution of heating elements at the bottom can be seen as a variant of standard Marangoni–Rayleigh–Bénard Convection where in place of a flat boundary at constant temperature ...
Marcello Lappa, Aydin Sayar, Wasim Waris
doaj   +1 more source

The Effect of Direct Electron Beam Patterning on the Water Uptake and Ionic Conductivity of Nafion Thin Films

open access: yesAdvanced Electronic Materials, 2023
The effect of electron‐beam patterning on the water uptake and ionic conductivity of Nafion films using a combination of X‐ray photoelectron spectroscopy, quartz crystal microbalance studies, neutron reflectometry, and impedance spectroscopy is reported.
Ky V. Nguyen   +14 more
doaj   +1 more source

Spatiotemporal patterning of photoresponsive DNA-based hydrogels to tune local cell responses

open access: yesNature Communications, 2021
Spatiotemporal patterning of hydrogel matrices has been used to control cell behavior. Here the authors present photoresponsive DNA-based hydrogels and demonstrate patterning of physical and biochemical properties to tune local cell responses.
Fujian Huang   +5 more
doaj   +1 more source

Aion is a bistable anion-conducting channelrhodopsin that provides temporally extended and reversible neuronal silencing

open access: yesCommunications Biology, 2022
Aion is an anion-conducting, bistable channelrhodopsin that enables long-term silencing of neuronal networks, as demonstrated in organotypic hippocampal cultures and Drosophila melanogaster larvae.
Silvia Rodriguez-Rozada   +7 more
doaj   +1 more source

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