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Creation of bioinspired ion channels that separate ions without compromising selectivity, conductivity or rectification ability has long been a challenge. Integration of metal–organic frameworks into asymmetric nanopore membranes overcomes this limitation.
Programmable DNA hybridization is used to mediate the self-assembly of substrate-bound DNA-grafted gold nanoparticles into single-crystalline Winterbottom and non-Winterbottom constructions with particular size, shape and orientation.
Reprogramming normal cells into tumour precursors involves complex reconditioning of the tissue microenvironment. Cumulative integration of genetic drivers with extrinsic mechanical inputs is now shown to engage YAP/TAZ to rewire cell mechanics and initiate tumorigenic reprogramming.
NiCoFeGa single crystals exhibit large non-hysteretic superelasticity over broad temperature and composition ranges. It is attributed to the continuous phase transition with applied stress, which is related to the fluctuation of entangled ordered and disordered crystal structures.
Vectorial electromagnetic modes in coupled metallic nanolasers are used to emulate the behaviour of complex magnetic materials, providing an integrated nanophotonic platform to study spin exchange interactions and map large-scale optimization problems.
The coexistence of chiral edge states and chiral spin textures in magnetic topological insulator sandwiches provides a platform for proof-of-concept dissipationless spin-textured spintronic applications.
Doping through spontaneous electron transfer between donor and acceptor polymers is obtained by selecting organic semiconductors with suitable electron affinity and ionization energy, achieving high conductivity in blends and bilayer configuration.
A modelling approach based on complex networks is used to simulate carrier transport in assemblies of nanostructures with a broad range of shapes and electrical properties, relevant to the realization of efficient transparent conductors.
Fast oxide ion and proton conductors at intermediate temperature are required to improve the performance of ceramic fuel cells. An undoped hexagonal perovskite Ba7Nb4MoO20 electrolyte with high proton and oxide ion conductivity (4.0 mS cm−1) at 510 °C is now reported.
Dendrite formation during electrodeposition while charging lithium metal batteries compromises their safety. Solid-ion conductors are now designed with a universal chemomechanical approach, resulting in either pressure- or density-driven dendrite-suppressing properties.
Here, using an interfacial growth strategy, UiO-66 MOF nanocrystals are asymmetrically embedded into conical pores in a polymer membrane. These pores have a mono/divalent cation selectivity of 103, which can be tuned by pH, and act as ionic rectifiers.
Single-stranded DNA encoders containing polyadenine domains endow colloidal gold nanoparticles with programmable bond valence, orthogonality and reconfigurability, thus achieving post-synthetic control over colloidal structures.
Receptor tyrosine kinase (RTK)–Ras oncogenes have now been shown to reprogram normal primary human and mouse cells into tumour precursors by empowering cellular mechanotransduction, in a process requiring permissive extracellular-matrix rigidity and intracellular YAP/TAZ/Rac mechanical signalling sustained by activated oncogenes.