Results 241 to 250 of about 4,079,930 (328)
A continental-scale Eurasian ice sheet 2.4 million years ago. [PDF]
Wagner K +11 more
europepmc +1 more source
Adsorption‐Engineered Hydrocarbon Ionomers for Durable Proton‐Exchange Membrane Fuel Cells
Hydrocarbon ionomers suffer from oxidation‐driven interfacial degradation in PEM fuel cell cathodes, leading to catalyst instability. Here, adsorption‐engineered poly(fluorene) ionomers decouple interfacial anchoring from oxidative degradation, enabling strong catalyst–ionomer interactions while resisting electrochemical oxidation.
Heemin Park +14 more
wiley +1 more source
Regime transitions in Arctic surface momentum balance reveal persistent and predictable dynamical states. [PDF]
Liu C, Liang X.
europepmc +1 more source
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi +14 more
wiley +1 more source
Cascading continental-scale floods across Europe in 1342-1343. [PDF]
Kiss A +35 more
europepmc +1 more source
Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na +10 more
wiley +1 more source
Prioritizing Shark, Ray, and Chimaera Conservation in Rapidly Changing Polar Waters. [PDF]
Bettcher VB +26 more
europepmc +1 more source
Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha +7 more
wiley +1 more source
Year-round movement of emperor penguin colonies observed from space. [PDF]
Macdonald GJ +6 more
europepmc +1 more source
All‐Amyloid Functional Coacervates
This study introduces an all‐amyloid interfacial complex coacervate technique that employs charge‐mediated or functionalization‐assisted complexation of oppositely charged food protein‐derived amyloid nanofibrils to engineer functional soft constructs across multiple length scales.
Seyyed Alireza Hashemi +4 more
wiley +1 more source

