Nanometer thin membranes filtering boron and phosphorus from water

Microporous organic nanotube assisted design of high performance nanofiltration membranes

Based on the design of natural, porous organic nanotubes, Shuangqiao Han et al. fabricate 15 nm thin membranes that can be used for water purification, specifically to filter out boron and phosporus. 

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  • Achieving both low energy consumption and radiation-hardness is highly challenging in memory devices. Here, the authors demonstrate a sub-10 fJ/bit, radiation-hard nanoelectromechanical non-volatile memory through structural and material approaches.

    • Yong-Bok Lee
    • Min-Ho Kang
    • Jun-Bo Yoon
    Article Open Access
  • Spin defects in 2D hBN are promising for magnetic field sensing but suffer from short spin coherence times. Here the authors extend the coherence time for an ensemble of spins in hBN to 4 microseconds by using a continuous microwave drive and demonstrate qubit control in a protected spin space.

    • Andrew J. Ramsay
    • Reza Hekmati
    • Isaac J. Luxmoore
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  • Designing efficient photonic neuromorphic systems remains a challenge. Here, the authors develop an in-sensor Reservoir Computing system for multi-tasked pattern classification based on a light-responsive semiconducting polymer (p-NDI) with efficient exciton dissociations, charge trapping capability, and through-space charge-transport characteristics.

    • Xiaosong Wu
    • Shaocong Wang
    • Weiguo Huang
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  • Under laser illumination it is possible to drive a ferromagnet to lose its magnetization. While this process can be rapid, remagnetization following this is slower, due to the universal critical slowing down near the phase transition. Here, Remy et al show how such a slowing down can be overcome, changing the direction of magnetization in 400 femtoseconds.

    • Quentin Remy
    • Julius Hohlfeld
    • Michel Hehn
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Subjects within Physical sciences

  • Fisher et al. combine sediment geochemistry and climate modelling to reveal long-term synchrony between erosion rates and orbitally-driven climate oscillations in the tectonically-active southern Central Andes.

    • G. Burch Fisher
    • Lisa V. Luna
    • Lucas J. Lourens
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  • Here the authors find that climate teleconnections modulate ~53 % of the global burned area with both synchronous and lagged signals, and marked regional patterns, with the Tropical North Atlantic mode being the most relevant.

    • Adrián Cardil
    • Marcos Rodrigues
    • Sergio de-Miguel
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  • Electrohydrodynamic features of dust storm turbulence have puzzled scientists for over a hundred years. Here, the authors reveal the characteristics of the multifield spectra in dust storms using a combined observational and theoretical approach.

    • Huan Zhang
    • You-He Zhou
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Subjects within Earth and environmental sciences

  • Bacteria undergo nutrient fluctuations during repeated feast and famine cycles and need to metabolically adapt to these changes. Using quantitative proteomics, Zhu & Dai show that the stringent response of (p)ppGpp is crucial for the timely adaption of bacterial growth to both amino acid and carbon downshift.

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    • Xiongfeng Dai
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  • Here, using Citrobacter rodentium colonization of mice as a model, the authors characterize the impact of pathogen dose on the number of bacteria that initiate infection in the mouse gut, providing a framework for quantifying the host bottlenecks that eliminate pathogens to protect from infection.

    • Ian W. Campbell
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  • In this work, the authors show that metamorphism in the post-translationally modified TDP-43 prion-like domain encodes determinants that command mechanisms with major relevance in disease and stress the relevance of post-translationally modified chains as the targets for disease intervention.

    • Jaime Carrasco
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Subjects within Biological sciences

  • Pathology diagnostics still rely on tissue morphology assessment by trained experts. Here, the authors perform deep-learning-based segmentation followed by large-scale feature extraction of histological images, i.e., next-generation morphometry, to enable outcome-relevant and disease-specific pathomics analysis of non-tumor kidney pathology.

    • David L. Hölscher
    • Nassim Bouteldja
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  • There have been increasing reports of extensively drug-resistant (XDR) Shigella sonnei infections in recent years. In this laboratory surveillance study from France, the authors document the rise of XDR isolates from 2005 to 2021 and perform whole genome sequencing to investigate their genomic diversity and evolutionary history.

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  • It is generally thought that complement activation in human membranous nephropathy (MN) occurs predominantly via the lectin or alternative pathway. Here, the authors show that the classical pathway is the dominant form of complement activation in MN and a pathogenic driver of the disease.

    • Larissa Seifert
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    • Nicola M. Tomas
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  • Here, using Citrobacter rodentium colonization of mice as a model, the authors characterize the impact of pathogen dose on the number of bacteria that initiate infection in the mouse gut, providing a framework for quantifying the host bottlenecks that eliminate pathogens to protect from infection.

    • Ian W. Campbell
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  • Most genetic studies of glucose levels have been done on fasting samples, which can be difficult to obtain. Here, the authors identify 156 genetic loci controlling the physiological variation of glucose levels in healthy non-fasting individuals, demonstrating that the results non-fasting samples can be used to predict fasting glucose levels.

    • Zhen Qiao
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Subjects within Health sciences

Subjects within Scientific community and society

  • Chalcogenide aerogels are receiving widespread attention due to their unique properties. Here we comment on a recent work about amorphous Na–Mn–Sn–S chalcogels featuring local structural control, and provide an outlook for the development of chalcogels and the metal-organic sulfide framework.

    • Lijun Yang
    • Jian Liu
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  • The development of photocatalysts is greatly hindered by false positives or non-reproducible data. Here, The authors describe the current known causes of non-reproducible results in the literature and present solutions to mitigate these false positive results.

    • Po-Wei Huang
    • Marta C. Hatzell
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  • We spoke to Professor Kylie Vincent – professor of inorganic chemistry at the University of Oxford, co-founder of HydRegen Ltd, and Academic Champion for Women in Entrepreneurship – about turning academic research into industrial products.

    Q&A Open Access
  • In this work, Morgenstern and colleagues describe an approach involving functionalized nanobodies which decrease the activity of voltage-gated Ca2+ channels associated with β1 subunits and promote their removal from the surface membrane of neurons and muscle.

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    Comment Open Access
  • Earthquakes are a natural hazard affecting millions of people globally every year. Researchers are working on understanding the mechanisms of earthquakes and how we can predict them from various angles, such as experimental work, theoretical modeling, and machine learning. We invited Marie Violay (EPFL Lausanne), Annemarie Baltay (USGS), Bertrand Rouet-Leduc (Kyoto University) and David Kammer (ETH Zürich) to discuss how such a multi-disciplinary approach can advance our understanding of Earthquakes.

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The highlights include but are not limited to the research areas of electronics, optoelectronics, computing technologies and theories, soft matter physics, complex network, robotics, machine learning technologies and data science. Emerging topics in the broader physics and mathematics community are constantly added too.
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