Results 131 to 140 of about 2,793,510 (386)

Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels

open access: yesAdvanced Functional Materials, EarlyView.
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco   +12 more
wiley   +1 more source

An Explainable Deep-learning Model of Proton Auroras on Mars

open access: yesThe Planetary Science Journal
Proton auroras are widely observed on the dayside of Mars, identified as a significant intensity enhancement in the hydrogen Ly α (121.6 nm) emission at altitudes of ∼110 and 150 km.
Dattaraj B. Dhuri   +2 more
doaj   +1 more source

Magnetically Guided Mechanoactive Mineralization Scaffolds for Enhanced Bone Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printed ‘rebar‐concrete’ inspired scaffold (PGS‐P@MGel) synergizes spontaneous biomineralization with magneto‐mechanical stimulation through PDA@Fe3O4‐embedded hydrogel. This dual biointerface activates Piezo1/β‐catenin/YAP mechanotransduction axis, enhancing BMSCs osteogenesis and angiogenesis simultaneously.
Xuran Guo   +10 more
wiley   +1 more source

The chemical effects of the Martian environment on power system component materials: A theoretical approach [PDF]

open access: yes
In the foreseeable future, an expedition may be undertaken to explore the planet Mars. Some of the power source options being considered for such a mission are photovoltaics, regenerative fuel cells and nuclear reactors.
Gaier, James R., Perez-Davis, Marla E.
core   +1 more source

Methane on Mars: Thermodynamic Equilibrium and Photochemical Calculations [PDF]

open access: yes, 2010
The detection of methane (CH4) in the atmosphere of Mars by Mars Express and Earth-based spectroscopy is very surprising, very puzzling, and very intriguing. On Earth, about 90% of atmospheric ozone is produced by living systems.
Ewell, M., Levine, J. S., Summers, M. E.
core   +1 more source

Beginning Of Artificial Atmosphere [PDF]

open access: yes, 2021
Colonization of Mars is and is not so out of reach today but there are a lot of challenges that must be overcome if life on Mars is to be seen. Mars, also known as the sister planet to Earth, is very similar to Earth.
Saunders, Dejah M, Ms.
core   +1 more source

Temperature Distributions in the Lower Atmosphere of Mars from Mariner 6 and 7 Radio Occultation Data [PDF]

open access: bronze, 1970
S. I. Rasool   +3 more
openalex   +1 more source

Soft Pneumatic Device Designed to Mimic the Periosteal Environment for Regulating the Fate of Mesenchymal Stem Cells

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a custom‐made soft pneumatic device (SPD) that mimics complex mechanical forces and fluid flow to enhance in vitro cell differentiation. It shows that low mechanotransduction promotes MSC differentiation into osteoprogenitor cells, while high mechanotransduction causes structural disruptions and cell detachment, providing new ...
Gwang‐Bum Im   +9 more
wiley   +1 more source

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