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Covalent organic frameworks (COFs) find increasing application as sensor material, but fast switching solvatochromism was not realized. Here the authors demonstrate that combination of electron-rich and -deficient building blocks leads to COFs which fast and reversibly change of their electronic structure depending on the surrounding atmosphere.
Quantum mechanics is expected to provide a consistent description of reality, even when recursively describing systems contained in each other. Here, the authors develop a variant of Wigner’s friend Gedankenexperiment where each of the current interpretations of QM fails in giving a consistent description.
Controlling ferroelectric polarization is conventionally achieved by applying electric fields, mechanical force or similar. Here reversible switching of the bulk polarization of a BiFeO3 thin film is demonstrated by pattering aqueous solution on to the surface enabling large-scale switching.
Sexual forms of malaria parasites are responsible for transmission to the mosquito. Anti-malarial drug resistance remains a serious problem and requires advent of new drug therapies. Here, the authors present a high-throughput screen of potential antimalarial compounds, identifying seventeen drug-like molecules specifically targeting transmission.
Alteration of cerebrospinal fluid (CSF) flow and cilia defects are clinically associated with idiopathic scoliosis. This study shows that transient receptor potential channel Pkd2l1 is required for mechanosensory function of neurons detecting CSF flow and normal spine curvature development in zebrafish.
The stability of perovskite solar cell remains the biggest challenge that hinders its commercialization. Here Li et al. incorporate crosslinkable molecules to form a crosslinked perovskite film and increase the device operational stability by 590 times to 400 h under standard Xenon lamp without filters.
The evolutionarily conserved multifunctional polymerase-associated factor 1 (Paf1) complex plays an essential role in gene regulation. Here, the authors report two structures of the human and yeast Ctr9/Paf1 subcomplexes, and find that this is essential for Paf1 complex assembly and function.
Peatlands recovering from acidification release dissolved organic carbon (DOC), but no biological role has yet been identified in this process. Here, the authors show that pH increases enhance phenol oxidase activity, pore-water DOC concentrations and lead to greater abundances in Actinobacteria and fungi.
Increasing evidence suggest that olfactory receptors can carry additional functions besides olfaction. Here, Chéret et al. show that stimulation of the olfactory receptor ORT2A4 by the odorant Sandalore® stimulates growth of human scalp hair follicles ex vivo, suggesting the use of ORT2A4-targeting odorants as hair growth-promoting agents.
Artemisinin (ART) is a widely used antimalarial drug, but its mechanism of action is poorly understood. Here, Bridgford et al. show that ART kills parasites by a two-pronged mechanism, causing protein damage and compromising proteasome function, and that accumulation of proteasome substrates activates the ER stress response.
Transcription regulation requires recruitment of different epigenetic regulators to the chromatin. Here the authors provide evidence that an H3K36me3 reader PWWP2A forms a variant NuRD complex and plays a role in regulating transcription and histone acetylation dynamics.
Identifying active sites and designing rationally heterogeneous catalysts are not inherently straightforward due to their complexity. Here, the authors reveal the nature of active sites for efficient C–H bond activation in C1-C4 alkanes over bare ZrO2 and provide fundamentals for controlling their concentration.
The function of metabolic genes in the context of regulatory networks is not well understood. Here, the authors investigate the adaptive responses of E. coli after knockout of metabolic genes and highlight the influence of metabolite levels in the evolution of regulatory function.
Traditional optical organic vapor sensors with solvatochromic shift mechanisms have lower sensitivity due to weak intermolecular interactions. Here, the authors report a general strategy to prepare a higher sensitivity optical organic vapor sensor through polymeric swelling-induced variation of fluorescent intensity.
The Hiccs locus has been associated with susceptibility to colitis in mice. Here the authors identify a Hiccs locus gene encoding Alpha kinase 1 as a potent regulator of intestinal inflammation via modulation of the IL-12/Th1 axis.
Identifying atomic defects during deformation is crucial to understand material response but remains challenging in three dimensions. Here, the authors couple X-ray Bragg coherent diffraction imaging and atomistic simulations to correlate a strain field to a screw dislocation in a single copper grain.
Quantum ferromagnetic spin liquids in two dimensions, namely quantum kagome ices, yield exotic magnetic properties but their identification remains challenging. Here the authors investigate a dynamic kagome ice state in the pyrochlore oxide Nd2Zr2O7 by magnetization and neutron scattering measurements.
River networks worldwide follow the emblematic Hack’s Law, which expresses the length of a stream as a function of its watershed area. Here the authors show this law does not depend on lithology or rainfall, but on the shape of watersheds and confirms the self-similarity of river networks.
The ESCRT complex contributes to selective vacuolar degradation of membrane proteins. Here, the authors show that the plant-specific BRAF protein negatively regulates intraluminal vesicle formation and membrane protein degradation by preventing FREE1 binding to the ESCRT-I complex protein Vps23.
Microtubule-associated protein 6 (MAP6) is known to be important for synaptic plasticity and cognition, supposedly via interaction with microtubules. Here, the authors found that MAP6 is crucial for the stabilisation of enlarged synapses through its association with a different cytoskeletal element, actin.