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Evaluating the Robustness of Complementary Channel Ferroelectric FETs Against Total Ionizing Dose Towards Radiation-Tolerant Embedded Nonvolatile Memory

TechRxiv

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TechRxiv 2023年

作者： Jiang, Zhouhang Guo, Zixiang Luo, Xuyi Sayed, Munazza Faris, Zubair Mulaosmanovic, Halid Duenkel, Stefan Soss, Steven Beyer, Sven Gong, Xiao Kurinec, Santosh Narayanan, Vijaykrishnan Amrouch, Hussam Zhang, Enxia Fleetwood, Daniel M. Schrimpf, Ronald D. Ni, Kai The Microsystems Engineering Ph.D. Program The Mechanical Engineering Rochester Institute of Technology RochesterNY14623 United States The Department of Electrical and Computer Engineering Vanderbilt University NashvilleTN37235 United States University of Stuttgart Stuttgart70174 Germany Germany The Munich Institute of Robotics and Machine Intelligence Arcisstrasse 21 Munich80333 Germany The GlobalFoundries Fab1 LLC Dresden Germany The Department of Electrical Computer Engineering National University of Singapore 119077 Singapore The Department of Computer Science and Engineering Penn State University University ParkPA16802 United States The Department of Electrical and Microelectric Engineering Rochester Institute of Technology RochesterNY14623 United States

In this work, a thorough assessment of the robustness of complementary channel HfO2 ferroelectric FET (FeFET) against total ionizing dose (TID) radiation is conducted, with the goal of determining its suitability for use as high-performance and energy-efficient embedded nonvolatile memory (eNVM) for space applications. We demonstrate that: i) ferroelectric HfO2 thin film is robust against X-ray and proton irradiation;ii) FeFET exhibits a polarization state dependent radiation sensitivity where the high-VTH (HVT) state sees noticeable negative VTH shift and low-VTH (LVT) is immune to irradiation, irrespective of the channel type;iii) the state dependence is ascribed to the depolarization field in the HVT, which points toward the channel and facilitates the transport and trapping of radiation-generated holes close to the channel. In the future, radiation hardening techniques need to be considered. © 2023, CC BY.

关键词： Radiation effects

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Negatively charged phospholipids accelerate the membrane fusion activity of the plant-specific insert domain of an aspartic protease

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Journal of Biological Chemistry 2022年第1期298卷 101430-101430页

作者： Zhao, Xiaoli Ma, Xiaomin Dupius, John H. Qi, Ruxi Tian, Jenny Chen, Jiaxin Ou, Xiuyuan Qian, Zhaohui Liang, Dehai Wang, Peiyi Yada, Rickey Y. Wang, Shenlin College of chemistry and molecular engineering Beijing NMR center Peking University Beijing100871 China State Key Laboratory of Bioreactor Engineering East China University of Science and Technology Shanghai200237 China Cryo-EM center Southern University of Science and Technology Shenzhen518055 China Food Nutrition and Health Program Faculty of Land and Food Systems the University of British Columbia VancouverBC Canada MOH Key Laboratory Institute of Pathogen Biology Chinese Academy of Medical Science Beijing China Beijing National Laboratory for Molecular Sciences Beijing China

Various plants use antimicrobial proteins/peptides as a means to resist phytopathogens. In the potato, Solanum tuberosum, the plant-specific insert (PSI) domain of an aspartic protease performs this role by disrupting phytopathogen plasma membranes. However, the mechanism by which PSI selects target membranes has not been elucidated. Here, we studied PSI-induced membrane fusion, focusing on the effects of lipid composition on fusion efficiency. Membrane fusion by the PSI involves an intermediate state whereby adjacent liposomes share their bilayers. We found that increasing the concentration of negatively charged phosphatidylserine (PS) phospholipids substantially accelerated PSI-mediated membrane fusion. NMR data demonstrated that PS did not affect the binding between the PSI and liposomes, but had seminal effects on the dynamics of PSI interaction with liposomes. In PS-free liposomes, the PSI underwent significant motion, which was suppressed on PS-contained liposomes. Molecular dynamics simulations showed that the PSI binds to PS-containing membranes with a dominant angle ranging from -31° to 30°, with respect to the bilayer, and is also present closer to the membrane surfaces. In contrast, PSI is mobile and exhibits multiple topological states on the surface of PS-free membranes. Taken together, our data suggested that PS lipids limit the motion of the anchored PSI, bringing it closer to the membrane surface and efficiently bridging different liposomes to accelerate fusion. As most phytopathogens have a higher content of negatively charged lipids as compared to host cells, these results indicate that the PSI selectively targets negatively charged lipids, which likely represents a way of distinguishing the pathogen from the host. © 2022 American Society for Biochemistry and Molecular Biology Inc.. All rights reserved.

关键词： Molecular dynamics

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Effects of Epitaxial Layer Thickness on Heavy Ion-Induced Single-Event Burnout in Vertical β-Ga₂O₃ Schottky Barrier Diodes

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IEEE Transactions on Nuclear science 2025年

作者： Islam, S. Senarath, A.S. Farzana, E. Ball, D.R. Sengupta, A. Sternberg, A.L. Reed, R.A. Pantelides, S.T. Witulski, A.F. Speck, J.S. Fleetwood, D.M. Schrimpf, R.D. Vanderbilt University Interdisciplinary Materials Science program Nashville 37235 TN United States Iowa State University Department of Electrical and Computer Engineering (ECE) Ames 50011 IA United States Vanderbilt University Department of Electrical and Computer Engineering Nashville 37235 TN United States Vanderbilt University Department of Physics and Astronomy Nashville 37235 TN United States University of California at Santa Barbara Materials Department Santa Barbara 93106 CA United States

Vertical beta-gallium oxide (β-Ga2O3) Schottky barrier diodes (SBDs) with field plates and edge termination structures are irradiated with heavy ions, O+, Ar+, and Pr+ having linear energy transfer (LET) of 5.5-46 Me... 详细信息

Vertical beta-gallium oxide (β-Ga₂O₃) Schottky barrier diodes (SBDs) with field plates and edge termination structures are irradiated with heavy ions, O⁺, Ar⁺, and Pr⁺ having linear energy transfer (LET) of 5.5-46 MeV-cm²/mg and Californium-252 (Cf-252), which emits heavy ions and alpha particles. Devices that have the same structure and similar doping concentrations, but thicker (10 μm) epitaxial layers, show higher single event burnout (SEB) voltage thresholds than devices with thinner (4 μm) epitaxial layers. Ions that stop near the middle of the active region and those that pass through the entire region each cause catastrophic failure in these devices, in contrast to previous results on silicon carbide SBDs with similar epitaxial layer thicknesses. Cf-252 provides a low-LET, quick screening source for space applications of β-Ga₂O₃ SBDs. However, significantly lower SEB voltage thresholds are observed during higher-LET, longer range, Pr heavy-ion testing. The edge region is found to be most vulnerable to SEB for these β-Ga₂O₃ SBDs. © 1963-2012 IEEE.

关键词： dielectric material diodes field plate Gallium Oxide heavy ions power devices single-event burnout β-Ga2O3

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Emergent dimer-model topological order and quasi-particle excitations in liquid crystals: combinatorial vortex lattices

arXiv

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arXiv 2025年

作者： Meng, Cuiling Wu, Jin-Sheng Kos, Žiga Dunkel, Jörn Nisoli, Cristiano Smalyukh, Ivan I. Department of Physics and Chemical Physics Program University of Colorado BoulderCO80309 United States Hiroshima University Hiroshima Higashihiroshima Japan Department of Mathematics Massachusetts Institute of Technology CambridgeMA02139 United States Faculty of Mathematics and Physics University of Ljubljana Ljubljana Slovenia Department of Condensed Matter Physics Jožef Stefan Institute Ljubljana Slovenia Theoretical Division Physics of Condensed Matter and Complex Systems Center For Nonlinear Studies Los Alamos National Laboratory Los AlamosNM87545 United States Department of Electrical Computer and Energy Engineering Materials Science and Engineering Program University of Colorado BoulderCO80309 United States Renewable and Sustainable Energy Institute National Renewable Energy Laboratory University of Colorado BoulderCO80309 United States

Liquid crystals have proven to provide a versatile experimental and theoretical platform for studying topological objects such as vortices, skyrmions, and hopfions. In parallel, in hard condensed matter physics, the concept of topological phases and topological order has been introduced in the context of spin liquids to investigate emergent phenomena like quantum Hall effects and high-temperature superconductivity. Here, we bridge these two seemingly disparate perspectives on topology in physics. Combining experiments and simulations, we show how topological defects in liquid crystals can be used as versatile building blocks to create complex, highly degenerate topological phases, which we refer to as ‘Combinatorial Vortex Lattices’ (CVLs). CVLs exhibit extensive residual entropy and support locally stable quasi-particle excitations in the form of charge-conserving topological monopoles, which can act as mobile information carriers and be linked via Dirac strings. CLVs can be rewritten and reconfigured on demand, endowed with various symmetries, and modified through laser-induced topological surgery — an essential capability for information storage and retrieval. We demonstrate experimentally the realization, stability, and precise optical manipulation of CVLs, thus opening new avenues for understanding and technologically exploiting higher-hierarchy topology in liquid crystals and other ordered media. Copyright © 2025, The Authors. All rights reserved.

关键词： Laser surgery

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Funneling of Lattice Vibrations Through Topological Phathways in Mid-Infrared Metasurfaces

Funneling of Lattice Vibrations Through Topological Phathway...

引用

CLEO: science and Innovations, S and I 2022

作者： Guddala, S. Komissarenko, F. Kiriushechkina, S. Vakulenko, A. Li, M. Menon, V.M. Alù, A. Khanikaev, A.B. Department of Electrical Engineering City College of the City University of New York New YorkNY10031 United States Department of Physics City College of New York New YorkNY10031 United States Physics Program Graduate Center of the City University of New York New YorkNY10016 United States Photonics Initiative Advanced Science Research Center City University of New York New YorkNY10031 United States

We demonstrate novel hybrid states of strongly-coupled photon and lattice vibrations in hexagonal boron nitride (hBN) integrated with mid-infrared metasurface and show their unconventional helical nature and resilient... 详细信息

ISBN: (纸本)9781557528209

关键词： Infrared devices

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Effects of concurrency on epidemic spreading in Markovian temporal networks

arXiv

引用

arXiv 2022年

作者： Liu, Ruodan Ogura, Masaki Reis, Elohim Fonseca Dos Masuda, Naoki Department of Mathematics State University of New York at Buffalo BuffaloNY14260-2900 United States Graduate School of Information Science and Technology Osaka University Osaka Suita565-0871 Japan Computational and Data-Enabled Sciences and Engineering Program State University of New York at Buffalo BuffaloNY14260-5030 United States Faculty of Science and Engineering Waseda University Tokyo169-8555 Japan

The concurrency of edges, quantified by the number of edges that share a common node at a given time point, may be an important determinant of epidemic processes in temporal networks. We propose theoretically tractable Markovian temporal network models in which each edge flips between the active and inactive states in continuous time. The different models have different amounts of concurrency while we can tune the models to share the same statistics of edge activation and deactivation (and hence the fraction of time for which each edge is active) and the structure of the aggregate (i.e., static) network. We analytically calculate the amount of concurrency of edges sharing a node for each model. We then numerically study effects of concurrency on epidemic spreading in the stochastic susceptible-infectious-susceptible and susceptible-infectious-recovered dynamics on the proposed temporal network models. We find that the concurrency enhances epidemic spreading near the epidemic threshold while this effect is small in many cases. Furthermore, when the infection rate is substantially larger than the epidemic threshold, the concurrency suppresses epidemic spreading in a majority of cases. In sum, our numerical simulations suggest that the impact of concurrency on enhancing epidemic spreading within our model is consistently present near the epidemic threshold but modest. The proposed temporal network models are expected to be useful for investigating effects of concurrency on various collective dynamics on networks including both infectious and other dynamics. Copyright © 2022, The Authors. All rights reserved.

关键词： Dynamics

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Electrospinning Near Infra-Red Light-Responsive Unzipped CNT/PDA Nanofibrous Membrane for Enhanced Antibacterial Effect and Rapid Drug Release

SSRN

引用

SSRN 2022年

作者： Lim, Ki-Taek Patil, Tejal V. Dutta, Sayan Deb Patel, Dinesh K. Ganguly, Keya Department of Biosystems Engineering Kangwon National University Chuncheon24341 Korea Republic of Interdisciplinary Program in Smart Agriculture Kangwon National University Chuncheon24341 Korea Republic of Institute of Forest Science Kangwon National University Chuncheon24341 Korea Republic of

Presently, efficient protection from bacterial infections is considered a potential threat owing to the raise of multidrug-resistant bacterial phenotypes. Hence, there is an urgent requirement to develop alternative strategies for eliminating bacterial infections. In this regard, near infrared (NIR) responsive photothermal agents (PTAs) has received significant attention. We report a mussel-inspired NIR-responsive unzipped CNT (uCNT)-based nanocomposite to combat against bacteria. The modification of mussel-inspired polydopamine (PDA) coating improved the NIR responsiveness and biocompatibility of uCNTs. The temperature of uCNT@PDA increased by 40°C upon exposure of 808 nm NIR light (1.0W/cm2, 10 min) showing the excellent photothermal property. PCL/uCNT@PDA nanofiber mats showed controlled photothermal heating upon low power density (0.5W/cm2) NIR irradiation and exhibited robust mechanical strength up to 20 MPa (PCL/uCNT@PDA-1). Taking advantage of photothermal effect and ROS generation, the nanofiber displayed remarkable antibacterial efficacy against Bacillus subtilis (gram positive) and Escherichia coli (gram negative) and displayed the release of curcumin in presence of NIR light. The fabricated PCL/uCNT@PDA platform is bioactive, anti-oxidative, and non-toxic for human dermal fibroblast cells. Therefore, we anticipate that the developed uCNT@PDA is a potential PTA and may provide a versatile platform for eradicating bacterial contamination in medical and non-medical sectors. © 2022, The Authors. All rights reserved.

关键词： Electrospinning

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Enhancing prediction accuracy of key biomass partitioning traits in wheat using multi-kernel genomic prediction models integrating secondary traits and environmental covariates

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Plant Genome 2025年第2期18卷 e70052页

作者： Kunwar, Sudip Babar, Md Ali Jarquin, Diego Ampatzidis, Yiannis Khan, Naeem Acharya, Janam Prabhat McBreen, Jordan Adewale, Samuel Brown-Guedira, Gina Plant Breeding Graduate Program University of Florida Gainesville FL United States Department of Agronomy University of Florida Gainesville FL United States Agricultural and Biological Engineering Department Southwest Florida Research and Education Center University of Florida IFAS Immokalee FL United States USDA-ARS Southeast Area Plant Science Research Raleigh NC United States

Achieving significant genetic gains in grain yield (GY) in wheat (Triticum aestivum L.) requires optimization of the key biomass partitioning traits such as spike partitioning index (SPI) and fruiting efficiency (FE). However, traditional manual phenotyping of these traits is labor-intensive and destructive, making it unsuitable for evaluating large germplasm panels. This study developed genomic prediction models to estimate these traits using diverse statistical methods while enhancing predictive ability (PA) by integrating environmental covariates (ECs) and secondary traits. A panel of 341 soft wheat elite lines was evaluated for biomass partitioning and yield-related traits from 2022 to 2024 in Citra, FL. Genomic best linear unbiased predictor (GBLUP) and Bayesian methods performed similarly or better than machine learning models for SPI, harvest index (HI), and GY. On the other hand, random forest models performed better in predicting effective tillers m⁻² (ET), 1000-grain weight (TGW), and grain numbers per m² (GN). Multi-kernel models incorporating ECs and secondary traits, such as plant height (PH) and aboveground biomass, substantially improved PA compared to genomics-only approaches. For 1000-grain weight, PA increased from 18% to 78%, with similar enhancements varying across other traits. Validations performed on separate breeding trial confirmed the reliability of the multi-kernel models, even though they showed a slightly lower PA compared to within-panel validations. These findings highlight the potential of integrating diverse data types or omics to enhance the prediction of biomass partitioning traits, speeding up genetic advancements, and the development of high-yield wheat varieties to address future food security challenges. © 2025 The Author(s). The Plant Genome published by Wiley Periodicals LLC on behalf of Crop science Society of America.

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Warming inhibits Increases in Vegetation Net Primary Productivity despite Greening in India

arXiv

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arXiv 2022年

作者： Das, Ripan Chaturvedi, Rajiv Kumar Roy, Adrija Karmakar, Subhankar Ghosh, Subimal Interdisciplinary Program in Climate Studies Indian Institute of Technology Bombay Powai Mumbai400 076 India Department of Humanities and Social Sciences Birla Institute of Technology and Science Goa Campus Zuarinagar India Department of Civil Engineering Indian Institute of Technology Bombay Powai Mumbai400 076 India Environmental Science and Engineering Department Indian Institute of Technology Bombay Powai Mumbai400 076 India

India is the second-highest contributor to the post-2000 global greening. With satellite data, here we show that this 18.51% increase in Leaf Area Index (LAI) during 2001-2019 fails to translate into increased carbon uptake due to warming constraints. Our analysis further shows 6.19% decrease in Net Primary Productivity (NPP) during 2001-2019 over the temporally consistent forests in India despite 6.75% increase in LAI. We identify hotspots of statistically significant decreasing trends in NPP over the key forested regions of Northeast India, Peninsular India, and the Western Ghats. Together, these areas contribute to 31% of the NPP of India (1274.8 *** -1). These regions are the warming hotspots in India. Decreasing photosynthesis and stable respiration, above a threshold temperature, are the key reasons behind the declining NPP. Warming has already started affecting carbon uptake in Indian forests and calls for improved climate resilient forest management practices in a warming world. © 2022, CC BY.

关键词： Photosynthesis

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Investigation of a novel biocide material for biocorrosion in simulated seawater: A case study on Tinospora cordifolia extract

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Case Studies in Chemical and Environmental engineering 2024年 10卷

作者： Royani, Ahmad Hanafi, Muhammad Aigbodion, Victor Sunday Prastya, Muhammad Eka Verma, Chandrabhan Mubarak, Nabisab Mujawar Alfantazi, Akram Manaf, Azwar Research Center for Metallurgy National Research and Innovation Agency – BRIN Kawasan Puspiptek Banten Tangerang Selatan 15314 Indonesia Postgraduate Program of Materials Science Study Department of Physics Faculty of Mathematics and Natural Sciences Universitas Indonesia Depok 16424 Indonesia Research Center for Pharmaceutical Ingredients and Traditional Medicine National Research and Innovation Agency – BRIN Kawasan Puspiptek Banten Tangerang Selatan 15314 Indonesia Department of Metallurgical and Materials Engineering University of Nigeria Nsukka 410001 Nigeria Department of Chemical and Petroleum Engineering Khalifa University of Science and Technology P.O. Box 127788 Abu Dhabi United Arab Emirates Petroleum and Chemical Engineering Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan BE1410 Brunei Darussalam Department of Biosciences Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Chennai India

This case report investigates the preventive effect of Tinospora cordifolia extract on biocorrosion induced by Pseudomonas aeruginosa on mild steel API 5L in the simulated seawater medium. Electrochemical techniques, spectroscopic techniques, and surface analysis were employed to investigate biocide performance and corrosion behavior. P. aeruginosa has been shown to enhance iron dissolution in seawater medium. These findings point to the role of P. aeruginosa bacteria in forming differential oxygen, which causes corrosion. Morphology results from atomic Fourier microscopy (AFM) highlight the presence of P. aeruginosa in biotic environments, where the surface is rougher than in abiotic conditions. On the other hand, adding T. cordifolia to the biotic medium resulted in a smoother and more homogeneous surface without any significant deterioration. Electrochemical findings reveal that adding 300 mg L⁻¹ of T. cordifolia extract prevents the microbiologically influenced corrosion (MIC) of steel API 5L, with an optimum effectiveness value of 74.50 % after 21 days of incubation. This protective effect is caused by forming a more compact iron oxide surface layer and the adsorption of phenolic active compounds such as Moupinamide and others on the surface of mild steel API 5L, as detected by liquid chromatography-mass/spectrometry-mass spectrometry (LCMS-MS), Fourier-transform infrared spectroscopy (FTIR) and field emission scanning electron microscopy (FE-SEM) techniques. © 2024 The Authors

关键词： Bio-corrosion Biofilm Green biocide Plant extract Pseudomonas aeruginosa Tinospora cordifolia

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