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Spin–orbit torques in heavy metal/ferromagnetic layers have a complex dependence on the magnetization direction. This dependence can be exploited to increase the efficiency of spin–orbit torques.
Computer simulations reveal that graphene nanosheets damage bacteria by penetrating into or extracting phospholipids from the cell membranes, offering new insights into the molecular basis of graphene cytotoxicity.
The influence of magnetic fields on the current-driven motion of domain walls in nanowires with perpendicular anisotropy shows that two spin–orbit-derived mechanisms are responsible for their motion.
Specially designed DNA nanodevices that enter the same cell through two different pathways can independently map pH gradients simultaneously inside distinct cellular compartments along both pathways.
DNA molecules can be sequenced by monitoring the electrical conductance of a phi29 DNA polymerase as it incorporates unlabelled nucleotides into a template strand of DNA.
A magnetic detection assay based on nucleic acid probes and nanoparticles can rapidly identify a variety of bacterial species in clinical specimens with sensitivity down to single bacteria, offering a useful technology platform for point-of-care diagnostics.
A modification of the elastomer stamp method enables single-layer graphene to be transferred onto virtually any arbitrary surface, including ultrathin soft polymer layers.