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Advancing depth perception in spatial computing with binocular metalenses

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Opto-Electronic Advances 2025年第1期8卷 1-3页

作者： Junkyeong Park Gyeongtae kim Junsuk Rho Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Electrical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics Pohang 37673Republic of Korea

Spatial computing and augmented reality are advancing rapidly,with the goal of seamlessly blending virtual and physical ***,traditional depth-sensing systems are bulky and energy-intensive,limiting their use in wearable *** overcome this,recent research by *** et *** a compact binocular metalens-based depth perception system that integrates efficient edge detection through an advanced neural *** system enables accurate,realtime depth mapping even in complex environments,enhancing potential applications in augmented reality,robotics,and autonomous systems.

关键词： metasurface metalens deep learning depth perception edge detection

Unlocking Novel Functionality:Pseudocapacitive Sensing in MXene-Based Flexible Supercapacitors

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Nano-Micro Letters 2025年第4期17卷 212-229页

作者： Eunji kim Seongbeen kim Hyeong Min Jin Gyungtae kim Hwi-Heon Ha Yunhui Choi Kyoungha Min Su-Ho Cho Hee Han Chi Won Ahn Jaewoo Roh Il-Kwon Oh Jinwoo Lee Yonghee Lee Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea National Nano Fab Center(NNFC) 291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea Department of Organic Materials Engineering Chungnam National University99 Daehak-RoYuseong-GuDaejeon 34134Republic of Korea Department of Materials Science and Engineering Chungnam National University99 Daehak-RoYuseong-GuDaejeon 34134Republic of Korea Department of Nano&Advanced Materials Science and Engineering Kyungpook National University2559Gyeongsang-DaeroSangju-SiGyeongsangbuk-Do 37224Republic of Korea Department of Mechanical Engineering Korea Advanced Institute of Science and Technology(KAIST)291 Daehak-RoYuseong-GuDaejeon 34141Republic of Korea

Extensively explored for their distinctive pseudocapacitance characteristics,MXenes,a distinguished group of 2D materials,have led to remarkable achievements,particularly in the realm of energy storage *** work presents an innovative Pseudocapacitive *** key lies in switching the energy storage kinetics from pseudocapacitor to electrical double layer capacitor by employing the change of local pH(-log[H^(+)])in MXene-based flexible supercapacitors during *** sensing is observed in acidic electrolyte but absent in neutral *** shearing during bending causes liquid-crystalline MXene sheets to increase in their degree of anisotropic *** blocking of H+mobility due to the higher diffusion barrier,local pH *** electrochemical energy storage kinetics transits from Faradaic chemical protonation(intercalation)to non-Faradaic physical *** utilize the phenomenon of capacitance change due to shifting energy storage kinetics for strain sensing *** developed highly sensitive Pseudocapacitive Sensors feature a remarkable gauge factor(GF)of approximately 1200,far surpassing conventional strain sensors(GF:~1 for dielectric-cap sensor).The introduction of the Pseudocapacitive Sensor represents a paradigm shift,expanding the application of pseudocapacitance from being solely confined to energy devices to the realm of multifunctional *** technological leap enriches our understanding of the pseudocapacitance mechanism of MXenes,and will drive innovation in cutting-edge technology areas,including advanced robotics,implantable biomedical devices,and health monitoring systems.

关键词： MXenes Supercapacitors Pseudocapacitive sensing Local pH Operando measurements

RGB Color-Discriminable Photonic Synapse for Neuromorphic Vision System

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Nano-Micro Letters 2025年第4期17卷 39-62页

作者： Bum Ho Jeong Jaewon Lee Miju Ku Jongmin Lee Dohyung kim Seokhyun Ham Kyu-Tae Lee Young-Beom kim Hui Joon Park Department of Organic and Nano Engineering&Human-Tech Convergence Program Hanyang UniversitySeoul 04763Korea Department of Semiconductor Engineering Hanyang UniversitySeoul 04763Korea Department of Mechanical Engineering Hanyang UniversitySeoul 04763Korea Department of Physics Inha UniversityIncheon 22212Korea

To emulate the functionality of the human retina and achieve a neuromorphic visual system,the development of a photonic synapse capable of multispectral color discrimination is of paramount ***,attaining robust color discrimination across a wide intensity range,even irrespective of medium limitations in the channel layer,poses a significant ***,we propose an approach that can bestow the color-discriminating synaptic functionality upon a three-terminal transistor flash memory even with enhanced discriminating *** incorporating the strong induced dipole moment effect at the excitation,modulated by the wavelength of the incident light,into the floating gate,we achieve outstanding RGB color-discriminating synaptic functionality within a remarkable intensity range spanning from 0.05 to 40 mW cm^(-2).This approach is not restricted to a specific medium in the channel layer,thereby enhancing its *** effectiveness of this color-discriminating synaptic functionality is demonstrated through visual pre-processing of a photonic synapse array,involving the differentiation of RGB channels and the enhancement of image contrast with noise ***,a convolutional neural network can achieve an impressive inference accuracy of over 94%for Canadian-Institute-For-Advanced-Research-10 colorful image recognition task after the *** proposed approach offers a promising solution for achieving robust and versatile RGB color discrimination in photonic synapses,enabling significant advancements in artificial visual systems.

关键词： Organic field-effect transistor Photonic synapse Excited-state dipole moment RGB color discrimination Neuromorphic visual system

Effects of dietary Lactobacillus postbiotics and bacitracin on the modulation of mucosaassociated microbiota and pattern recognition receptors affecting immunocompetence of jejunal mucosa in pigs challenged with enterotoxigenic F18^(+)Escherichia coli

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Journal of Animal Science and Biotechnology 2025年第1期16卷 282-299页

作者： Marcos Elias Duarte Zixiao Deng Sung Woo kim Department of Animal Science North Carolina State University116 Polk HallCampus Box 7621RaleighNC 27695USA

Background Enterotoxigenic Escherichia coli(***)is a threat to humans and animals that causes intestinal *** resistance has urged alternatives,including Lactobacillus postbiotics,to mitigate the effects of enterotoxigenic *** Forty-eight newly weaned pigs were allotted to NC:no challenge/no supplement;PC:F18^(+)*** chal-lenge/no supplement;ATB:F18^(+)*** challenge/bacitracin;and LPB:F18^(+)*** challenge/postbiotics and fed diets for 28 *** d 7,pigs were orally inoculated withF18^(+)*** d 28,the mucosa-associated microbiota,immune and oxidative stress status,intestinal morphology,the gene expression of pattern recognition receptors(PRR),and intestinal barrier function were *** were analyzed using the MIXED procedure in SAS *** PC increased(P<0.05)Helicobacter mastomyrinus whereas reduced(P<0.05)Prevotella copri and ***-corea compared to *** LPB increased(P<0.05)*** and Dialister succinatiphilus compared with *** ATB increased(P<0.05)Propionibacterium acnes,Corynebacterium glutamicum,and Sphingomonas pseudosanguinis compared to *** PC tended to reduce(P=0.054)PGLYRP4 and increased(P<0.05)TLR4,CD14,MDA,and crypt cell proliferation compared with *** ATB reduced(P<0.05)NOD1 compared with *** LPB increased(P<0.05)PGLYRP4,and interferon-γand reduced(P<0.05)NOD1 compared with *** ATB and LPB reduced(P<0.05)TNF-αand MDA compared with *** TheF18^(+)*** challenge compromised intestinal *** increased beneficial bacteria show-ing a trend towards increasing the intestinal barrier function,possibly by reducing the expression of PRR ***-tobacillus postbiotics enhanced the immunocompetence of nursery pigs by increasing the expression of interferon-γand PGLYRP4,and by reducing TLR4,NOD1,and CD14.

关键词： Escherichia coli Immunocompetence Intestinal health Pattern recognition receptors Pigs

Modular miniaturized synthesis and in situ biological evaluation facilitate rapid discovery of potent Mra Y inhibitors as antibacterial agents

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Chinese Chemical Letters 2025年第2期36卷 29-31页

作者： Mianling Yang Meehyein kim Peng Zhan Department of Medicinal Chemistry Key Laboratory of Chemical Biology Ministry of Education School of Pharmaceutical SciencesShandong University Infectious Diseases Therapeutic Research Center Korea Research Institute of Chemical Technology (KRICT)

Despite the availability of effective antibacterial drugs, the increasing prevalence of antibiotic-resistant bacteria is primarily attributed to their excessive and inappropriate utilization. Antimicrobial resistance (AMR) represents one of the most concerning global health and development threats [1]. Thereby, the continuous escalation in AMR necessitates urgent advancements in novel antibacterial strategies. The MraY enzyme, which plays a pivotal role in synthesizing bacterial cell wall-composing polysaccharides, holds significant potential as a target for antibacterial agents [2]. However, its conformational dynamics have presented substantial challenges in developing MraY-targeting inhibitors.

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Therapeutic potential of exercise-hormone irisin in Alzheimer's disease

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Neural Regeneration Research 2025年第6期20卷 1555-1564页

作者： Eunhee kim Rudolph ETanzi Se Hoon Choi Genetics and Aging Research Unit MassGeneral Institute for Neurodegenerative DiseaseDepartment of NeurologyMassachusetts General HospitalHarvard Medical SchoolCharlestownMAUSA McCance Center for Brain Health Massachusetts General HospitalBostonMAUSA

Irisin is a myokine that is generated by cleavage of the membrane protein fibronectin type Ⅲ domain-containing protein 5(FNDC5) in response to physical exercise. Studies reveal that irisin/FNDC5 has neuroprotective functions against Alzheimer's disease, the most common form of dementia in the elderly, by improving cognitive function and reducing amyloid-β and tau pathologies as well as neuroinflammation in cell culture or animal models of Alzheimer's disease. Although current and ongoing studies on irisin/FNDC5 show promising results, further mechanistic studies are required to clarify its potential as a meaningful therapeutic target for alleviating Alzheimer's disease. We recently found that irisin treatment reduces amyloid-β pathology by increasing the activity/levels of amyloid-β-degrading enzyme neprilysin secreted from astrocytes. Herein, we present an overview of irisin/FNDC5's protective roles and mechanisms against Alzheimer's disease.

关键词： Alzheimer's disease exercise fibronectin typeⅢdomain-containing protein 5(FNDC5) irisin

Exploring the mechanistic role of epidermal growth factor receptor activation in non-cancer kidney disease

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BIOCELL 2025年第1期49卷 79-92页

作者： JU-YEON LEE DAEUN MOON JINU kim Medical Course College of MedicineCatholic Kwandong UniversityGangneung25601Republic of Kore Department of Anatomy College of MedicineJeju National UniversityJeju63243Republic of Korea Interdisciplinary Graduate Program in Advanced Convergence Technology&Science Jeju National UniversityJeju63243Republic of Korea

The epidermal growth factor receptor(EGFR)is a transmembrane glycoprotein that plays a crucial role in signal transduction and cellular *** review explores the function of EGFR in kidney physiology and its implications for various kidney *** signaling is essential for kidney function and repair mechanisms,and its dysregulation significantly impacts both acute and chronic kidney *** review discusses the normal distribution of EGFR in kidney tubular segments,the mechanism of its activation and inhibition,and the therapeutic potential of EGFR-targeting antagonists and ***,it explores the pathophysiological characteristics observed in rodent models of kidney diseases through pharmacological and genetic inhibition of EGFR,highlighting therapeutic challenges and limitations such as species differences,variability in disease models,and potential adverse ***,the findings underscore the multifaceted role of EGFR in kidney diseases,influencing inflammation,fibrosis,and tissue *** complex involvement suggests that targeting EGFR may be a beneficial therapeutic strategy for managing these conditions,potentially mitigating inflammation and fibrosis while promoting tissue repair.

关键词： Epidermal growth factor receptor Chronic kidney disease Acute kidney injury Tubulointerstitial fibrosis

A New Encryption Mechanism Supporting the Update of Encrypted Data for Secure and Efficient Collaboration in the Cloud Environment

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 813-834页

作者： Chanhyeong Cho Byeori kim Haehyun Cho Taek-Young Youn Department of Cyber Security Dankook UniversityYongin16890Republic of Korea Department of Software Soongsil UniversitySeoul07027Republic of Korea

With the rise of remote collaboration,the demand for advanced storage and collaboration tools has rapidly ***,traditional collaboration tools primarily rely on access control,leaving data stored on cloud servers vulnerable due to insufficient *** paper introduces a novel mechanism that encrypts data in‘bundle’units,designed to meet the dual requirements of efficiency and security for frequently updated collaborative *** bundle includes updated information,allowing only the updated portions to be reencrypted when changes *** encryption method proposed in this paper addresses the inefficiencies of traditional encryption modes,such as Cipher Block Chaining(CBC)and Counter(CTR),which require decrypting and re-encrypting the entire dataset whenever updates *** proposed method leverages update-specific information embedded within data bundles and metadata that maps the relationship between these bundles and the plaintext *** utilizing this information,the method accurately identifies the modified portions and applies algorithms to selectively re-encrypt only those *** approach significantly enhances the efficiency of data updates while maintaining high performance,particularly in large-scale data *** validate this approach,we conducted experiments measuring execution time as both the size of the modified data and the total dataset size *** show that the proposed method significantly outperforms CBC and CTR modes in execution speed,with greater performance gains as data size ***,our security evaluation confirms that this method provides robust protection against both passive and active attacks.

关键词： Cloud collaboration mode of operation data update efficiency

Enhancing micro-scale SiOx anode durability:Electro-mechanical strengthening of binder networks via anchoring carbon nanotubes with carboxymethyl cellulose

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Journal of Energy Chemistry 2025年第2期101卷 23-33页

作者： Chaeyeon Ha Jin Kyo Koo Jun Myoung Sheem Young-Jun kim SKKU Advanced Institute of Nano Technology (SAINT) Sungkyunkwan University Department of Nano Science and Technology Sungkyunkwan University Advanced Center for Convergence Energy Storage System Sungkyunkwan University SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University

With the increasing prevalence of lithium-ion batteries（LIBs） applications,the demand for high-capacity next-generation materials has also *** currently considered a promising anode material due to its exceptionally high capacity for ***,the significant volumetric changes of SiOxduring cycling and its initial Coulombic efficiency（ICE） complicate its use,whether alone or in combination with graphite *** this study,a three-dimensional conductive binder network with high electronic conductivity and robust elasticity for graphite/SiOxblended anodes was proposed by chemically anchoring carbon nanotubes and carboxymethyl cellulose binders using tannic acid as a chemical *** addition,a dehydrogenation-based prelithiation strategy employing lithium hydride was utilized to enhance the ICE of *** combination of these two strategies increased the CE of SiOxfrom 74% to87% and effectively mitigated its volume expansion in the graphite/SiOxblended electrode,resulting in an efficient electron-conductive binder *** led to a remarkable capacity retention of 94% after30 cycles,even under challenging conditions,with a high capacity of 550 mA h g-1and a current density of 4 mA ***,to validate the feasibility of utilizing prelithiated SiOxanode materials and the conductive binder network in LIBs,a full cell incorporating these materials and a single-crystalline Ni-rich cathode was *** cell demonstrated a～27.3% increase in discharge capacity of the first cycle(～185.7 mA h g-1) and exhibited a cycling stability of 300 ***,this study reports a simple,feasible,and insightful method for designing high-performance LIB electrodes.

关键词： Lithium-ion batteries SiO x anode Blended anode Carbon nanotubes Carboxymethyl cellulose Conductive binder network