Results 261 to 270 of about 213,560 (338)

Curved Bistable Origami‐Inspired Flexible Transcatheter Mitral Valve Clamping

open access: yesAdvanced Science, EarlyView.
A lightweight bistable curved origami dilator combines reversible deformation and high stability, offering a promising solution for minimally invasive mitral valve repair. Abstract Curved origami exhibits remarkable potential for minimally invasive medical applications owing to its unique geometric programmability and mechanical tunability. Building on
Siyu Gao   +4 more
wiley   +1 more source

An Elastocaloric Polymer with Ultra‐High Solid‐State Cooling via Defect Engineering

open access: yesAdvanced Science, EarlyView.
This work reports a defect‐engineering strategy that enables a record‐high adiabatic temperature change of up to 8.14 ± 1.76 °C in elastomers at an elevated temperature above 65 °C. Combined experimental and theoretical efforts reveal that increasing dangling‐chain defects nonmonotonically impacts the elastocaloric cooling performance of polymers due ...
Zhaohan Yu   +11 more
wiley   +1 more source

Essential and dispensable domains of DivIVA for walled growth in filamentous Actinomycetota. [PDF]

open access: yesOpen Biol
Lubbers M   +12 more
europepmc   +1 more source

Atomic‐Scale Mechanisms of Multi‐Resistance States in HfOx‐Based RRAM: Evolution of Atomic Electric Fields and Oxygen Vacancies

open access: yesAdvanced Science, EarlyView.
Atomic‐scale mechanisms governing multilevel resistive switching in HfOx‐based RRAM are reveal through advanced TEM. Thermally driven m‐phase rotation ([101]↔[011]) enables selective oxygen vacancy migration, which reconstructs atomic electric fields and dictates conduction—from Schottky/Poole‐Frenkel emission to Ohmic transport.
Wen Sun   +9 more
wiley   +1 more source

Predictors of Transition from Mild Cognitive Impairment to Normal Cognition and Dementia. [PDF]

open access: yesBehav Sci (Basel)
Gao J   +4 more
europepmc   +1 more source

Mechanical Stimuli‐Induced Manipulation of Malignant Behavior in Bioprinted Cancer Microtissues via PI3K/NF‐κB Activation

open access: yesAdvanced Science, EarlyView.
A mechanically tunable ECM platform is created by integrating dECM–alginate matrices with in‐bath tumor printing. The mechanically tunable ECM environment drives tumors to acquire hypoxia, mechanotransduction signaling, metastatic traits, and drug‐resistant phenotypes that collectively promote malignant transformation.
Seok‐Hyeon Lee   +8 more
wiley   +1 more source

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