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Mitochondria have a controversial role in cancer. Here, the authors demonstrate the reprogramming of a neuronal network of mitochondrial trafficking in tumor cells, and identify Syntaphilin as a key protein that suppresses organelle dynamics thereby blocking chemotaxis and metastasis in mice.
Organic solar cells based on solution-processable small molecules still lag behind their macromolecule counterparts. Here, Denget al. develop molecular donors to pair with PC71BM and study how the degree of fluorination impacts the morphology of the heterojunction and the efficiency of the devices.
Whether an actual Mott insulator phase exists in iron pnictides remains elusive. Here, Songet al. demonstrate an antiferromagnetic insulator phase persisting above the Néel temperature in NaFe1−xCuxAs, indicative of a Mott insulator, highlighting the role of electron correlations in high-Tcsuperconductivity.
Combining a perovskite ferroelectric with moderate piezoelectric properties and a nonpiezoelectric pervoskite relaxor can create a highly piezoelectric material. Here, the authors help explain this unusual result by quantifying how polar nanoregions in the material contribute to its piezoelectric response.
The mitochondrial protein import machinery is crucial for eukaryotes but little is known about its evolutionary origin. Here, the authors characterize the translocase of the inner membrane (TIM) in trypanosomes, showing that it contains two rhomboid-like proteins essential for protein import.
Low amplitude noise on an otherwise constant-intensity wave can grow exponentially and induce nonlinear dynamical behaviour. Here, the authors present time-domain measurements of a phenomenon arising from such modulation instability: the emergence of highly localised breathers in an optical fibre.
Spike-frequency adaptation in thalamocortical (TC) neurons is important for sensory transmission though the underlying mechanisms are not fully understood. Here, the authors identify a role for the calcium-activated chloride channel, ANO2, in mediating TC spiking adaptations and visceral pain response.
Oligodendrocyte progenitor cell (OPC) proliferation is crucial for regeneration after hypoxic lesions in mice, a model of diffuse white matter injury of premature infants. Here, the authors show that the histone deacetylase Sirt1 is a Cdk2-dependent mediator of OPC proliferation and OPC response to hypoxia.
Live cell super-resolution imaging requires a high temporal resolution, which remains a challenge. Here the authors combine photo-activated localization microscopy (PALM) with super-resolution optical fluctuation imaging (SOFI) to achieve high spatiotemporal resolution and quantitative imaging of focal adhesion dynamics.
A large spin-splitting is essential for spintronic devices. Here, the authors observe a spontaneous spin-splitting energy of between 31.7 and 50 millielectronvolts in n-type indium iron arsenide at temperatures up to several tens of Kelvin, challenging the conventional theory of ferromagnetic semiconductors.
Many chromatin modifying proteins, including BRDT, contain bromodomains, which are known to interact with nucleosomes. Here, the authors find that BRDT interacts with nucleosomes via only one of its two bromodomains, and that the interaction involves contacts with DNA as well as acetylated histones.
A common strategy to target nanoparticles to tumours is conjugation with specific antibodies, targeting protein expressed preferentially by cancer cells. Here the authors show that the number of antibodies bound to the nanoparticle influences the targeting abilityin vitro and in vivo.
Spontaneous polarization leads to various functionalities promising for future information storage and electronics. Here, the authors propose the concept of ferrovalley material with spontaneous valley polarization in monolayer 2H-VSe2.
Materials with ordered magnetic spiral phases can exhibit ferroelectricity and magnetoelectric effects, but applications are restricted by low magnetic-order temperatures. Here, the authors stabilize the magnetic spiral phase of YBaCuFeO5at room temperature by controlling the iron–copper chemical disorder.
The interplay between the low-energy carriers in Dirac materials and magnetism is likely to reveal many novel physical phenomena. Here, the authors use two-magnon Raman scattering to determine the exchange energies of two prototypical magnetic Dirac systems, CaMnBi2 and SrMnBi2.
Detection of electric fields, central to chemical and biological processes, has been limited to measurements of current (e.g., electrodes) and secondary reporters (e.g., fluorescent dyes). Here, the authors demonstrate an optical platform capable of imaging electric field dynamics with high spatio-temporal resolution.
While CO2 can be converted to CO for further reactivity, typically this involves the generation of large amounts of waste. Here the authors report the conversion of CO2to CO, with the siloxane by-product being further used in a carbonylative Hiyama-Denmark coupling to form diarylketones.
During subduction, fluids are released into the mantle wedge, but the exact compositions of these fluids are unclear. Ponset al. by analysing zinc isotopes from serpentinite provide evidence that oxidized, sulphate rich fluids are released to the mantle wedge during subduction.
Polypeptide N-acetyl-galactosaminyltransferases (GALNTs) are associated with cancer, but their function in organ-specific metastasis is unclear. Here the authors show that GALNT14 promotes breast cancer metastasis to the lung by enhancing the initiation of metastatic colonies and subsequent growth.
Studying the genetic progression of many cancers is difficult as longitudinal samples are rarely available. Here, the authors analyse a patient with chronic lymphocytic leukaemia over a 29 year period and track the clonal evolution of the patient’s disease and response to therapy.