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Synthetic microbial communities are suitable for mixed substrates fermentation and long metabolic pathway engineering. Here, the authors combine fermentation experiments with mathematical modeling to reveal the effect of compositional and temporal changes on division of labor in cellulosic ethanol production using two yeast strains.
Sonani et al. report the cryo-EM structures of the Milano phage tail, unraveling the mechanism of its flexible-to-rigid transformation, the inter-chain disulfide network hindering tail contraction and the structural organization of receptor binding proteins.
Introducing biomaterials into semiconductors to manifest bio-mimetic functionality is impactful to trigger new enhancement mechanisms. Here, the authors utilize different types of biomolecules to regulate the perovskite crystal lattice and endow a mechanism for stabilizing the metastable lattice.
Longitudinal monitoring of liver function in vivo is hindered by the lack of high-resolution non-invasive imaging techniques. Here, the authors show a crucial and unique tool for longitudinal in vivo imaging of liver spheroids at cellular resolution to study liver physiology and disease.
The RIG-I like receptors sense RNA viruses and initiate antiviral immunity. Here the authors screen 375 definite ubiquitin ligases and propose UBR5 promotes RLR transcription by disengaging the TRIM28-imposed brake on the RLR promoters.
A wearable biological patch capable of producing multiple responses to light and electricity without interfering with daily activities is desired for skin cancer treatment but remains elusive. Herein, the authors report a skin-mountable and dual-responsive electrothermal patch for melanoma treatment by the co-therapy of photothermal and electrical stimulations.
Assembly of amyloids is important in neurodegenerative diseases, but there is limited understanding of how supramolecular chirality is controlled. Here, the authors report the design of peptide derivatives that allow chirality inversion at biologically relevant temperatures.
Nonlinear epsilon-near-zero nanodevices are attractive solutions for large-scale integrated system-on-chips yet heat genearation upon operation affects their performance. Here, the authors studied the linear and nonlinear thermo-optic effects in the indium tin oxide, commonly used material for this system.
Currently, the anti-icing performance limitation of superhydrophobic materials is gradually approached without the assistance of an external field. Here, the authors propose a strategy of microdroplet movement manipulation induced by interfacial airflow for further improving the anti-icing performance.
While the reported methods for the synthesis of organoselenium compounds mainly employ preformed activated selenium reagents, the direct utilization of elemental selenium in the synthesis is a more attractive but challenging strategy. Here, the authors report the rapid synthesis of versatile organoselenium compounds via mechanical stimulation.
In vivo detection of cell senescence remains a challenge in aging research. This work introduces a novel fluorogenic probe for β-Gal activity that is excreted in urine, providing a simple diagnosis method to estimate the systemic load of senescent cells during aging and senolytic interventions.
Synthetic Chromosome Rearrangement and Modification by LoxP-mediated Evolution (SCRaMbLE) is a promising tool to study genomic rearrangements. Here the authors present an engineered yeast strain with 83 sparsely distributed loxPsym sites across the genome can genrerate large-scale genomic rearrangements, which benefits cell fitness under stress and boosts the SCRaMbLE system when combined with synthetic chromosomes.
The charge-density-wave Weyl semimetal (TaSe4)2I is a candidate for an axion insulator, however it may be obscured by polaron physics. Here, using ultrafast terahertz photocurrent spectroscopy, the authors realize phase switches from the polaronic state, to the charge density wave phase, and to the Weyl phase.
Important biomolecules from the birth of our Solar System such as amino acids and polyaromatic hydrocarbons were analysed in the UK meteorite fall Winchcombe by synchrotron and electron microscopy techniques with unique high energy resolution.
Cortical morphology shows maturation during childhood and adolescence. Here the authors show this is structurally constrained by a diffusion network model and that this constraint is linked to gene expression profiles of microstructural development.
Wang et al. discovered that AP2XI-2 and AP2XII-1 negatively regulate merozoite-primed pre-sexual commitment in Toxoplasma gondii, and parasites depleted of either AP2XI-2 or AP2XII-1 can serve as a valuable in vitro model for studying merogony.
Viruses have evolved specific mechanisms to reduce programmed cell death in order to prolong survival. Here the authors show a mouse cytomegalovirus (MCMV) encoded protein that inhibits pyroptosis, proinflammatory cytokine release and the assembly of inflammasomes.
Gate-type field emission cathodes based on carbon nanotubes face challenges of achieving high E-beam transmittance to avoid the collision with the gate to form irreversible damages. Here, the authors present a self-charging gate to control the E-beam trajectory by inducing a local electric field.
The origin of SARS-CoV-2 cross-reactive T cells in unexposed humans is unclear. Here, the authors use HLA transgenic mouse models of sequential infections with human coronavirus OC43 and SARSCoV-2 and show that OC43 elicits cross-protective immunity against SARS-CoV-2, which partially depends on CD4 + T cells.