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Nov 2022 • Cell Reports

Diet-induced modifications to human microbiome reshape colonic homeostasis in irritable bowel syndrome

Hadar Bootz-Maoz, Ayelet Pearl, Ehud Melzer, Stephen Malnick, Efrat Sharon, Yifat Bennet, Rotem Tsentsarevsky, Shlomi Abuchatzera, Sivan Amidror, Elana Aretz, Shalhevet Azriel, Chen Gam Ze Letova, Maria Naama, Irit Shoval, Orly Yaron, Sarit Karako-Lampert, Shai Bel, Nissan Yissachar

Changes in microbiome composition are associated with a wide array of human diseases, turning the human microbiota into an attractive target for therapeutic intervention. Yet, clinical translation of these findings requires the establishment of causative connections between specific microbial taxa and their functional impact on host tissues. Here, we infuse gut organ cultures with longitudinal microbiota samples collected from therapy-naive patients with irritable bowel syndrome (IBS) under a low-fermentable oligo-, di-, mono-saccharides and polyols (FODMAP) diet. We show that post-diet microbiota regulates intestinal expression of inflammatory and neuro-muscular gene sets. Specifically, we identify Bifidobacterium adolescentis as a diet-sensitive pathobiont that alters tight junction integrity and disrupts gut barrier functions. Collectively, we present a pathway discovery platform for mechanistic dissection and …

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Nov 2022 • Kate Atkinson, viii-viii, 2022

Acknowledgements

Armelle Parey

As Kate Atkinson has Effie say in Emotionally Weird, adapting John Donne,‘No woman is an island’(EW 219). Genuine thanks to Paul Clark at Manchester University Press and the anonymous experts and reader for supporting the project. Warm-hearted thanks are due to family, colleagues and friends for their support and notably to Josephine McNamara for her generous encouragement and faith, to Georges Letissier and Isabelle Roblin for their valuable advice, to Andrew Guy and Sandra Robinson for their helpful proof-reading, to James and Jacques McNamara for simply being there.

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Nov 2022 • ACS Applied Polymer Materials

Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Poushali Das, Sayan Ganguly, Syed Rahin Ahmed, Masoomeh Sherazee, Shlomo Margel, Aharon Gedanken, Seshasai Srinivasan, Amin Reza Rajabzadeh

Heteroatom-doped carbon dot (CD)-reinforced flexible, antioxidant, and UV-resistant polymeric thin films have been fabricated by a facile physical compounding strategy associated with the ‘cast and peel’ technique. The prepared CDs were found to be stable in aqueous media because of their zeta potential value (−5.85 mV). There was no significant change in the zeta potential values during 7 days of storage, indicating the long-term stability of CPCDs. CD-reinforced thermoplastic starch (TPS)/κ-carrageenan hybrid films have been developed as antioxidants to improve the shelf-life of agro-products. Besides this, they also qualified for mechanical strength (>40 MPa), transparency (∼77%), nondeteriorative dimensional integrity at a high relative humidity (∼97%), and UV-resistant properties. For assessing the food preservation behavior, the leaching of CDs also has been studied by time-dependent sustained …

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Nov 2022 • Nature Energy

Upshifting potentials to increase reversibility

Doron Aurbach, Mikhael Levi, Netanel Shpigel

One of the biggest hurdles to realise high-performance Li-metal batteries is the instability of Li metal towards all relevant electrolytes. Now, an approach is reported to improve Li cells’ stability by upshifting the Li electrodes’ potential to reduce their voltage gap with the electrolyte electrochemical stability windows.

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Nov 2022 • Energy Storage Materials

Double gas treatment: A successful approach for stabilizing the Li and Mn-rich NCM cathode materials’ electrochemical behavior

Sandipan Maiti, Hadar Sclar, Judith Grinblat, Michael Talianker, Maria Tkachev, Merav Tsubery, Xiaohan Wu, Malachi Noked, Boris Markovsky, Doron Aurbach

Herein, a systematic surface modification approach via double gas (SO2 and NH3) treatment at elevated temperatures is described, aimed to achieve a stable electrochemical performance of Li and Mn-rich NCM cathode materials of a typical composition 0.33Li2MnO3•0.67LiNi0.4Co0.2Mn0.4O2 (HE-NCM). Partial surface reduction of Mn4+ and the formation of a modified interface comprising Li-ions conductive nano-sized Li2SO4/Li2SO3 phases are established. Li-coin cells’ prolonged cycling performance demonstrated significantly improved capacity retention (∼2.2 times higher than untreated cathode materials) for the double-gas-treated cathodes after 400 cycles at a 1.0 C rate. Stable discharge potential and lower voltage hysteresis during cycling were also achieved through the double gas treatment. Comparative electrochemical studies in full-pouch cells [vs. Graphite anodes] also demonstrated …

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Nov 2022 • Crystal Growth & Design

Localized Heating Tailors Nucleation for Reproducible Growth of Thin Halide Perovskite Single Crystals

Sujit Kumar, Alexandra Rukban, Julia Sinisi, Vinayaka H Damle, David Cahen

Halide perovskites (HaPs) are functional semiconductors that can be prepared in a simple, near-room-temperature process. With thin polycrystalline HaP films, excellent solar cells, light-emitting diodes (LEDs), and (also as single crystals) high-energy radiation detectors have been demonstrated. The very low single-crystal defect densities make HaP thin single crystals (TSCs), instead of polycrystalline HaP films an attractive option, to boost device performances and for fundamental research. However, growing TSCs is challenging primarily because of random multiple nucleations, which, in the often-used space-confined geometry, is favored at the substrate boundaries, where loss of organo-amines and solvents occurs. We show that fewer and better-quality thin crystals nucleate and grow reproducibly away from the substrate edges in the substrate center, if we localize the heating (needed for inverse-temperature …

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Nov 2022 • Solid State Ionics

Multi-spray pyrolysis for combinatorial synthesis of materials libraries and their high-throughput screening: Application to Li-ion conducting electrolytes

Shay Tirosh, Niv Aloni, David Cahen, Diana Golodnitsky

We present a multi-head spray pyrolysis system and its application in high-throughput combinatorial synthesis for research of solid Li-ion conductors. Each spraying nozzle is fed with a separate precursor solution. The overlap of areas that are sprayed leads to unprecedented composition flexibility of the films obtained after pyrolysis. Thus, a library with a continuous composition spread of a Li-La-P-O model system is formed. The Li-ion conduction was determined on 169 cells of the library, using high throughput impedance measurements in a controlled environment. While the activation energies that were found were relatively small, Li-ion conduction was still low. This low mobility is hypothesized to originate from the sub-optimal occupation of Li sites in the non-stoichiometric materials' lattices, and/or porosity and tortuosity issues, which in turn, reduces their effective concentration and contribution to ion transport. In …

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Nov 2022 • Cell Reports

Diet-induced modifications to human microbiome reshape colonic homeostasis in irritable bowel syndrome

Hadar Bootz-Maoz, Ayelet Pearl, Ehud Melzer, Stephen Malnick, Efrat Sharon, Yifat Bennet, Rotem Tsentsarevsky, Shlomi Abuchatzera, Sivan Amidror, Elana Aretz, Shalhevet Azriel, Chen Gam Ze Letova, Maria Naama, Irit Shoval, Orly Yaron, Sarit Karako-Lampert, Shai Bel, Nissan Yissachar


Nov 2022 • Advanced Energy Materials

Superstructure Variation and Improved Cycling of Anion Redox Active Sodium Manganese Oxides Due to Doping by Iron

Xiaodong Qi, Langyuan Wu, Zhiwei Li, Yuxuan Xiang, Yunan Liu, Kangsheng Huang, Elias Yuval, Doron Aurbach, Xiaogang Zhang

Anionic redox provides an effective way to overcome the capacity bottleneck of sodium‐ion batteries. A dominant role is played by the arrangement of alkali A and transition metal M in the NaxAyM1‐yO2 superstructure. Here, in situ X‐ray diffraction and ex situ 7Li nuclear magnetic resonance of P2 type Na0.6Li0.2Mn0.8O2 with ribbon‐ordered superstructure illustrate structural changes and explain the evolution of the electrochemical behavior of electrodes comprising this active mass, during cycling. Upon substitution of a small amount of manganese by iron, Na0.67Li0.2Mn0.73Fe0.07O2 is formed with a honeycomb‐ordered superstructure. Experimental characterizations and theoretical calculations elucidate the effect of iron on oxygen redox activity. The iron‐doped material considerably outperforms the undoped Na0.6Li0.2Mn0.8O2 as a cathode material for rechargeable Na‐ion batteries. This research reveals …

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Nov 2022 • Journal of Virology

Upregulation of ATF4-LAMP3 Axis by ORF45 Facilitates Lytic Replication of Kaposi’s Sarcoma-Associated Herpesvirus

Qinqin Sun, Fan Wang, Qingyang Chen, Ronit Sarid, Xiaojuan Li, Ersheng Kuang

Kaposi’s sarcoma-associated herpesvirus (KSHV) is a γ-oncogenic herpesvirus, and both lytic and latent infections play important roles in its pathogenesis and tumorigenic properties. Multiple cellular pathways and diverse mediators are hijacked by viral proteins and are used to support KSHV lytic replication. In previous studies, we revealed that KSHV ORF45 promoted KSHV transcription and translation by inducing sustained p90 ribosomal S6 kinase (RSK) activation and the phosphorylation of its substrates c-Fos and eIF4B. However, the cellular mediators required for lytic replication remain largely unknown. Here, we reveal that ORF45 activates eIF2α phosphorylation and ATF4 translation and then upregulates the expression of lysosome-associated membrane protein 3 (LAMP3) in an ATF4-dependent manner during KSHV lytic replication. Consequently, LAMP3 promotes Akt and ERK activation and then …

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Nov 2022 • arXiv preprint arXiv:2211.13658

Cascade infrared thermal photon emission

Klavs Hansen, Ori Licht, Adeliya Kurbanov, Yoni Toker

The time development of the excitation energy of molecules and clusters cooling by emission of thermal vibrational infrared radiation has been studied. The energy distributions and the photon emission rates develop into near-universal functions that can be characterized with only a few parameters, irrespective of the precise vibrational spectra and oscillator strengths of the systems. The photon emission constant and emitted power averaged over all thermally populated states vary linearly with total excitation energy with a small offset. The time developments of ensemble internal energy distributions are calculated with respect to their first two moments. For the derived linear dependence of the emission rate constant, these results are exact.

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Nov 2022

Bio and electronically controlled surface plasmons polaritons generated by coupling between nano-antenna and photosynthetic protein-photosystem I

Itai Carmeli, Ibrahim Tanriover, Tirupathi Malavath, Moshik Cohen, Yossi Abulafia, Olga Girshevitz, Shachar Richter, Koray Aydin, Zeev Zalevsky

Surface plasmons polaritons (SPP) hold great promise for the next generation of fast nanoscale optoelectronic devices, as silicon-based electronic devices approach fundamental speed and scaling limitations. However, in order to fully exploit the potential of plasmonics, devices and material systems capable of actively controlling and manipulating plasmonic response is essential. Here, we demonstrate active control of the electric field distribution of a micro antenna by coupling SPP to a photosynthetic protein with outstanding optoelectronic properties and long range and efficient exciton transfer ability. The hybrid bio-solid state active platform is able to tune and modulate the optical activity of a micro plasmonic antenna via interaction of the bioactive material with plasmon oscillations occurring in the antennae. In addition, we demonstrate that the effect of the coupling can be further enhanced and controlled by an external potential applied to the micro antenna Photosynthetic hybrid system.

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Nov 2022 • Journal of Physics: Condensed Matter

Corrigendum: Novel in situ multi-harmonic EQCM-D approach to characterize complex carbon pore architectures for capacitive deionization of brackish water (2016 J. Phys …

Netanel Shpigel, Mikhael D Levi, Sergey Sigalov, Doron Aurbach, Leonid Daikhin, Volker Presser

It has been brought to the authors' notice that the SEM images in figure 2 panels (b) and (d) are related to the incorrect carbon material. A corrected version is shown here in figure 2. The authors apologize for the unfortunate mistake.

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Nov 2022 • ACS Applied Polymer Materials

Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Poushali Das, Sayan Ganguly, Syed Rahin Ahmed, Masoomeh Sherazee, Shlomo Margel, Aharon Gedanken, Seshasai Srinivasan, Amin Reza Rajabzadeh


Nov 2022 • Desalination 542, 116043, 2022

Advances and perspectives in integrated membrane capacitive deionization for water desalination

Qinghao Wu, Dawei Liang, Shanfu Lu, Haining Wang, Yan Xiang, Doron Aurbach, Eran Avraham, Izaak Cohen

Capacitive deionization (CDI) has been considered as the most promising and environmentally friendly electrical desalination technology owing to its low energy consumption and no secondary pollution. CDI is based on the principle of electric double layer for salt ion adsorption, but the existence of co-ions repulsion reduce the charge efficiency, leading to the low salt adsorption capacity. To prevent the intrinsic “co-ion effect” inside the porous carbon electrodes, membrane capacitive deionization (MCDI) by applying an ion-exchange membrane (IEM) to the surface of electrode is of increasing interest. However, MCDI brings various resistances, such as the internal and interface resistances of membrane, as well as the contact resistance between membrane and carbon electrode. More recently, by integrating “membrane” with carbon electrode without the introduction of free-standing IEM, integrated-MCDI has …

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Nov 2022 • Journal of The Electrochemical Society

Electrochemical Methods of Transference Number Determination for Polymer Electrolyte Systems: A Comparative Study

Shaul Bublil, Miryam Fayena-Greenstein, Yuval Elias, Doron Aurbach

The transference number for cations, t+, is one of the most important parameters for characterizing polymeric and/or composite solid electrolytes. It expresses the contribution of the positive charge carriers to the total conductivity, which in turn reflects the degree of polarization due to the negative carriers in the electrolyte systems. Four electrochemical methods based on different equations commonly used for obtaining t+ are compared. A series of experiments were conducted with solid polymer electrolytes based on polyethylene oxide with and without TiO2 ceramic additive. Interestingly, the oldest method developed and presented four decades ago, emerges as the most simple, reliable, sensitive, repeatable, and stable option for determining t+ values over time.

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Nov 2022 • Superconductor Science and Technology

Characterization of YBa2Cu3O7− δ coplanar resonator for microwave kinetic inductance detectors

Ariel Roitman, A Shaulov, Y Yeshurun

We demonstrate an improved YBa 2 Cu 3 O 7− δ-based microwave kinetic inductance detector with a quality factor and noise equivalent power, $\sim {10^{-12}}{\mkern 1mu}{\text {W}}{\mkern 1mu}{\sqrt {{\text {Hz}}}^{-1}} $ at 10 K. Zero field cooled (ZFC) and field cooled (FC) measurements of the magnetic field dependence of the resonance characteristics, show substantially different behavior, indicating that both the screening currents and vortices play a role. The ZFC measurements exhibit a sharp decrease of the resonance frequency, , and at low fields, up to the full penetration field, revealing the dominant role of the screening currents. In contrast, the FC measurements exhibit a moderate decrease of and with field, revealing the role of vortices and reflecting the field dependence of the penetration depth in a d-wave superconductor.

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Nov 2022 • Physical Review B

Universality and microstrain origin of the ramp reversal memory effect

Elihu Anouchi, Naor Vardi, Yoav Kalcheim, Ivan K Schuller, Amos Sharoni

The recently discovered ramp reversal memory (RRM) is a nonvolatile memory effect observed in correlated oxides with temperature-driven insulator–metal transitions (IMT). It appears as a resistance increase at predefined temperatures that are set or erased by simple heating–cooling (ie, ramp reversal) protocols. Until now RRM was measured for two materials: VO 2 and NdNiO 3. A heuristic model suggests that the RRM is caused by a local transition temperature increase at boundaries of spatially separated metallic and insulating domains during ramp reversal. However, there is no experimental measure of the magnitude of the effect, which is crucial for the development of a theoretical account of the RRM. Here we show that V 2 O 3 also shows RRM, including all related features, highlighting the generality of the effect. Moreover, an analysis of the RRM as an effective (average) increase of the critical …

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Nov 2022

Remote and low-cost intraocular pressure monitoring by deep learning of speckle patterns

Zeev Kalyuzhner, Sergey Agdarov, Yevgeny Beiderman, Aviya Bennett, Yafim Beiderman, Zeev Zalevsky

Intraocular pressure (IOP) measurements comprise an essential tool in modern medicine for the early diagnosis of glaucoma, the second leading cause of human blindness. The world's highest prevalence of glaucoma is in low-income countries.Current diagnostic methods require experience in running expensive equipment as well as the use of anesthetic eye drops. We present herein a remote photonic IOP biomonitoring method based on deep learning of secondary speckle patterns, captured by a fast camera, that are reflected from eye sclera stimulated by an external sound wave. By combining speckle pattern analysis with deep learning, high precision measurements are possible.

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Nov 2022 • Nano Letters

Intrinsic Magnetic (EuIn) As Nanowire Shells with a Unique Crystal Structure

Hadas Shtrikman, Man Suk Song, Magdalena A Załuska-Kotur, Ryszard Buczko, Xi Wang, Beena Kalisky, Perla Kacman, Lothar Houben, Haim Beidenkopf

In the pursuit of magneto-electronic systems nonstoichiometric magnetic elements commonly introduce disorder and enhance magnetic scattering. We demonstrate the growth of (EuIn)As shells, with a unique crystal structure comprised of a dense net of Eu inversion planes, over InAs and InAs1–xSbx core nanowires. This is imaged with atomic and elemental resolution which reveal a prismatic configuration of the Eu planes. The results are supported by molecular dynamics simulations. Local magnetic and susceptibility mappings show magnetic response in all nanowires, while a subset bearing a DC signal points to ferromagnetic order. These provide a mechanism for enhancing Zeeman responses, operational at zero applied magnetic field. Such properties suggest that the obtained structures can serve as a preferred platform for time-reversal symmetry broken one-dimensional states including intrinsic topological …

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Nov 2022 • Progress in Retinal and Eye Research 89, 101029, 2022

Inherited retinal diseases: Linking genes, disease-causing variants, and relevant therapeutic modalities

Nina Schneider, Yogapriya Sundaresan, Prakadeeswari Gopalakrishnan, Avigail Beryozkin, Mor Hanany, Erez Y Levanon, Eyal Banin, Shay Ben-Aroya, Dror Sharon

Inherited retinal diseases (IRDs) are a clinically complex and heterogenous group of visual impairment phenotypes caused by pathogenic variants in at least 277 nuclear and mitochondrial genes, affecting different retinal regions, and depleting the vision of affected individuals. Genes that cause IRDs when mutated are unique by possessing differing genotype-phenotype correlations, varying inheritance patterns, hypomorphic alleles, and modifier genes thus complicating genetic interpretation. Next-generation sequencing has greatly advanced the identification of novel IRD-related genes and pathogenic variants in the last decade. For this review, we performed an in-depth literature search which allowed for compilation of the Global Retinal Inherited Disease (GRID) dataset containing 4,798 discrete variants and 17,299 alleles published in 31 papers, showing a wide range of frequencies and complexities among …

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