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WoS SCOPUS Document Type Document Title Abstract Authors Affiliation ResearcherID (WoS) AuthorsID (SCOPUS) Author Email(s) Journal Name JCR Abbreviation ISSN eISSN Volume Issue WoS Edition WoS Category JCR Year IF JCR (%) FWCI ⓘ FWCI Update Date WoS Citation SCOPUS Citation Keywords (WoS) KeywordsPlus (WoS) Keywords (SCOPUS) KeywordsPlus (SCOPUS) Language Publication Stage Publication Year Publication Date DOI JCR Link DOI Link WOS Link SCOPUS Link
○ ○ Review ⓘ Review on inorganic and polymeric materials-coordinated metal-organic-framework photocatalysts for green hydrogen evolution ⓘ Metal-organic frameworks (MOFs) possess a distinct advantage over conventional heterogeneous photocatalysts because of their carefully defined architecture and particular pores, which facilitate the targeted incorporation of other efficient cocatalysts or semiconductor materials. The integration of MOFs with other materials has resulted in significant breakthroughs, as the coupled materials improve the performance due to the combined effect. The unique MOF structures allow them to host foreign materials, which results in harvesting the visible region of the solar spectrum and effectively mitigating charge recombination by promoting charge separation. The review presents an evaluation of the latest developments in the utilization of surface and/or pore chemistry of MOF-supported heterojunctions for photocatalytic green-hydrogen generation with a basic understanding of the mechanism involved. The review begins with the basic principles of photocatalysis, the significance of MOFs, their optical properties, the methods used for synthesizing MOFs, and their coordination with other inorganic and polymeric materials. Furthermore, methods to increase photocatalytic H2 evolution using MOF-supported heterojunction have been proposed as standard practice. Lastly, to address environmental challenges, we highlight the future potential of MOF-supported heterojunctions for use in green-energy production. We hope that this review provides guidance to researchers in the development of effective heterojunctions based on MOFs to address challenges in energy applications and catalytic processes. (c) 2024 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved. ⓘ Lee, Dong-Eun; Danish, Mohtaram; Alam, Umair; Jo, Wan-Kuen ⓘ Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Yeungnam Univ, Sch Chem Engn, Gyongsan 38541, Gyeongbuk, South Korea ⓘ Alam, Umair/K-1384-2018; ALAM, UMAIR/K-1384-2018; Jo, Wan/AAO-5329-2020 ⓘ 56605563300; 57216220743; 57196777237; 7103322277 ⓘ dmohtaram@gmail.com;wkjo@knu.ac.kr; ⓘ JOURNAL OF ENERGY CHEMISTRY ⓘ J ENERGY CHEM ⓘ 2095-4956 92 SCIE CHEMISTRY, APPLIED;CHEMISTRY, PHYSICAL;ENERGY & FUELS;ENGINEERING, CHEMICAL ⓘ 2024 14.9 2.0 2.06 2025-05-07 ⓘ 23 23 Renewable energy; Environmental challenge; Heterojunction; Water splitting; Photocatalysis ⓘ DRIVEN H-2 PRODUCTION; VISIBLE-LIGHT; CHARGE SEPARATION; QUANTUM DOTS; HETEROJUNCTION PHOTOCATALYST; G-C3N4 NANOSHEETS; CARBON NITRIDES; CO2 ADSORPTION; DOPED-CARBON; SINGLE-ATOM ⓘ Environmental challenge; Heterojunction; Photocatalysis; Renewable energy; Water splitting ⓘ ⓘ English 2024 2024-05 10.1016/j.jechem.2023.12.029 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Surface-functionalized hole-selective monolayer for high efficiency single-junction wide-bandgap and monolithic tandem perovskite solar cells ⓘ Carbazole moiety-based 2PACz ([2-(9H-carbazol-9-yl)ethyl]phosphonic acid) self-assembled monolayers (SAMs) are excellent hole-selective contact (HSC) materials with abilities to excel the charge-transferdynamics of perovskite solar cells (PSCs). Herein, we report a facile but powerful method to functionalize the surface of 2PACz-SAM, by which reproducible, highly stable, high-efficiency wide-bandgap PSCs can be obtained. The 2PACz surface treatment with various donor number solvents improves assembly of 2PACz-SAM and leave residual surface-bound solvent molecules on 2PACz-SAM, which increases perovskite grain size, retards halide segregation, and accelerates hole extraction. The surface functionalization achieves a high power conversion efficiency (PCE) of 17.62% for a single-junction wide-bandgap (-1.77 eV) PSC. We also demonstrate a monolithic all-perovskite tandem solar cell using surfaceengineered HSC, showing high PCE of 24.66% with large open-circuit voltage of 2.008 V and high fillfactor of 81.45%. Our results suggest this simple approach can further improve the tandem device, when coupled with a high-performance narrow-bandgap sub-cell. (c) 2023 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved. ⓘ Vidyasagar, Devthade; Yun, Yeonghun; Cho, Jae Yu; Lee, Hyemin; Kim, Kyung Won; Kim, Yong Tae; Yang, Sung Woong; Jung, Jina; Choi, Won Chang; Kim, Seonu; Gunasekaran, Rajendra Kumar; Kang, Seok Beom; Heo, Kwang; Kim, Dong Hoe; Heo, Jaeyeong; Lee, Sangwook ⓘ Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Chonnam Natl Univ, Dept Mat Sci & Engn, Gwangju 61186, South Korea; Chonnam Natl Univ, Optoelect Convergence Res Ctr, Gwangju 61186, South Korea; Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea; Sejong Univ, Dept Nanotechnol & Adv Mat Engn, Seoul 05006, South Korea ⓘ ; Heo, Kwang/B-1133-2015; Kim, Dong Hoe/HLQ-5764-2023; Kang, Seok Beom/HGA-0547-2022; Kim, Yong Tae/CKE-7709-2022; Lee, Sangwook/O-9166-2015; Vidyasagar, Devthade/O-3930-2015; Gunasekaran, Rajendra Kumar/ISU-5759-2023; Yun, Yeonghun/KRP-9208-2024 ⓘ 57201674442; 57202548363; 57916033600; 57218340449; 58669728800; 56688936500; 58670140200; 57222277455; 58669186800; 58669460100; 57201582809; 57216319784; 16241347000; 56366898500; 12805041100; 57203597324 ⓘ donghoekim@korea.ac.kr;jheo@jnu.ac.kr;wook2@knu.ac.kr; ⓘ JOURNAL OF ENERGY CHEMISTRY ⓘ J ENERGY CHEM ⓘ 2095-4956 88 SCIE CHEMISTRY, APPLIED;CHEMISTRY, PHYSICAL;ENERGY & FUELS;ENGINEERING, CHEMICAL ⓘ 2024 14.9 2.0 5.81 2025-04-16 ⓘ 23 25 Perovskite solar cells; 2PACz; Monolithic tandem solar cells; Wide bandgap ⓘ SELF-ASSEMBLED MONOLAYERS; METAL HALIDE PEROVSKITES ⓘ 2PACz; Monolithic tandem solar cells; Perovskite solar cells; Wide bandgap ⓘ Charge transfer; Conversion efficiency; Energy gap; Open circuit voltage; Perovskite; Surface segregation; Surface treatment; 2PACz; High power conversion; Higher efficiency; Monolithic tandem solar cell; Monolithics; Power conversion efficiencies; Selective contacts; Single junction; Tandem solar cells; Wide-band-gap; Perovskite solar cells ⓘ English 2024 2024-01 10.1016/j.jechem.2023.09.023 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Use of functional magnetic resonance imaging to identify cortical loci for lower limb movements and their efficacy for individuals after stroke ⓘ Background Identification of cortical loci for lower limb movements for stroke rehabilitation is crucial for better rehabilitation outcomes via noninvasive brain stimulation by targeting the fine-grained cortical loci of the movements. However, identification of the cortical loci for lower limb movements using functional MRI (fMRI) is challenging due to head motion and difficulty in isolating different types of movement. Therefore, we developed a custom-made MR-compatible footplate and leg cushion to identify the cortical loci for lower limb movements and conducted multivariate analysis on the fMRI data. We evaluated the validity of the identified loci using both fMRI and behavioral data, obtained from healthy participants as well as individuals after stroke.Methods We recruited 33 healthy participants who performed four different lower limb movements (ankle dorsiflexion, ankle rotation, knee extension, and toe flexion) using our custom-built equipment while fMRI data were acquired. A subgroup of these participants (Dataset 1; n = 21) was used to identify the cortical loci associated with each lower limb movement in the paracentral lobule (PCL) using multivoxel pattern analysis and representational similarity analysis. The identified cortical loci were then evaluated using the remaining healthy participants (Dataset 2; n = 11), for whom the laterality index (LI) was calculated for each lower limb movement using the cortical loci identified for the left and right lower limbs. In addition, we acquired a dataset from 15 individuals with chronic stroke for regression analysis using the LI and the Fugl-Meyer Assessment (FMA) scale.Results The cortical loci associated with the lower limb movements were hierarchically organized in the medial wall of the PCL following the cortical homunculus. The LI was clearer using the identified cortical loci than using the PCL. The healthy participants (mean +/- standard deviation: 0.12 +/- 0.30; range: - 0.63 to 0.91) exhibited a higher contralateral LI than the individuals after stroke (0.07 +/- 0.47; - 0.83 to 0.97). The corresponding LI scores for individuals after stroke showed a significant positive correlation with the FMA scale for paretic side movement in ankle dorsiflexion (R2 = 0.33, p = 0.025) and toe flexion (R2 = 0.37, p = 0.016).Conclusions The cortical loci associated with lower limb movements in the PCL identified in healthy participants were validated using independent groups of healthy participants and individuals after stroke. Our findings suggest that these cortical loci may be beneficial for the neurorehabilitation of lower limb movement in individuals after stroke, such as in developing effective rehabilitation interventions guided by the LI scores obtained for neuronal activations calculated from the identified cortical loci across the paretic and non-paretic sides of the brain. ⓘ Choi, Minseok; Kim, Hyun-Chul; Youn, Inchan; Lee, Song Joo; Lee, Jong-Hwan ⓘ Korea Univ, Dept Brain & Cognit Engn, Seoul, South Korea; Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea; Korea Inst Sci & Technol, Bion Res Ctr, Biomed Res Div, Seoul, South Korea; Korea Univ, Interdisciplinary Program Precis Publ Hlth, Seoul 02841, South Korea; MIT, McGovern Inst Brain Res, Boston, MA 02139 USA ⓘ Lee, Hyo/G-6299-2019 ⓘ 58987949000; 57194876917; 13404628400; 58632737600; 36065360400 ⓘ songjoolee@kist.re.kr;jonghwan_lee@korea.ac.kr; ⓘ JOURNAL OF NEUROENGINEERING AND REHABILITATION ⓘ J NEUROENG REHABIL ⓘ 1743-0003 21 1 SCIE ENGINEERING, BIOMEDICAL;NEUROSCIENCES;REHABILITATION ⓘ 2024 5.2 2.0 0.72 2025-05-07 ⓘ 2 2 Functional MRI; Lower limb; Multivoxel pattern analysis; Paracentral lobule; Representational similarity analysis ⓘ FUGL-MEYER ASSESSMENT; BRAIN ACTIVATION; MOTOR RECOVERY; GAIT; REPRESENTATION; RELIABILITY; FOOT; LATERALIZATION; REORGANIZATION; INFORMATION ⓘ Functional MRI; Lower limb; Multivoxel pattern analysis; Paracentral lobule; Representational similarity analysis ⓘ Humans; Lower Extremity; Magnetic Resonance Imaging; Movement; Stroke; Stroke Rehabilitation; adult; ankle joint; Article; behavior; brain depth stimulation; cerebrovascular accident; clinical article; clinical effectiveness; controlled study; correlation analysis; cortical locus; female; Fugl-Meyer assessment; functional magnetic resonance imaging; hemisphere; human; knee joint; laterality index; leg movement; male; middle aged; multivariate analysis; nervous system parameters; neurofeedback; neurorehabilitation; paracentral lobule; paresis; radiological parameters; regression analysis; stroke patient; toe joint; validity; cerebrovascular accident; lower limb; movement (physiology); nuclear magnetic resonance imaging; physiology; stroke rehabilitation ⓘ English 2024 2024-04-16 10.1186/s12984-024-01319-8 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Review ⓘ Advancing the integration of covalent-organic-framework with organic, inorganic, and polymeric materials for light-assisted green H2 generation: A review of emerging trends ⓘ The growing demand for sustainable energy has driven significant advancements in covalent organic frameworks (COFs) for photocatalytic H-2 production. In this context, this review comprehensively examines the integration of COFs with various organic, inorganic, and polymeric materials to enhance light-assisted H-2 generation. We explore key synthesis approaches, including solvothermal, mechanochemical, sonochemical, interfacial, and post-synthetic modifications. Additionally, innovative methods such as photochemical synthesis, microwaveassisted solvothermal techniques, plasma-induced synthesis, and electron-beam-induced synthesis are discussed, highlighting their potential to optimize the structural and photocatalytic properties of COF-based heterojunction systems. Furthermore, extensive research has been conducted on the development of various composite materials, such as MOF-COF, metal oxide-COF, metal sulfide-COF, MXene-COF, g-C3N4-COF, and graphitic oxide-COF composites, to investigate their combined effects in improving photocatalytic efficiency. Particular attention is given to heterojunction systems and their structural features, which are critical for enhancing the photophysical and chemical properties required for efficient H-2 generation. Lastly, our findings reveal that the highest photocatalytic H-2 generation rate reported to date has been achieved using specific heterojunction systems. Successively, by synthesizing recent advancements and emerging trends, this review underscores the potential of COF-based composites to revolutionize sustainable energy solutions and provides valuable insights into future research directions aimed at significantly enhancing H2 production efficiency under light irradiation. ⓘ Lee, Dong-Eun; Ali, Asim; Kang, Kyeong Tae; Danish, Mohtaram; Jo, Wan-Kuen ⓘ Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Phys, KNU G LAMP Project Grp, Daegu 41566, South Korea ⓘ Jo, Wan/AAO-5329-2020 ⓘ 56605563300; 58269655200; 56002123900; 57216220743; 7103322277 ⓘ dmohtaram@gmail.com;wkjo@knu.ac.kr; ⓘ MATERIALS SCIENCE & ENGINEERING R-REPORTS ⓘ MAT SCI ENG R ⓘ 0927-796X 1879-212X 161 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED ⓘ 2024 26.8 2.1 0.61 2025-05-07 ⓘ 7 9 Covalent organic framework; Structural characteristics; Integration technique; Photocatalysis; Sustainable H 2 production ⓘ INTERFACIAL CHARGE-TRANSFER; HYDROGEN EVOLUTION; SCHEME HETEROJUNCTION; FACILE SYNTHESIS; CADMIUM-SULFIDE; HYBRID; COF; CRYSTALLINE; TRANSPORT; G-C3N4 ⓘ Covalent organic framework; Integration technique; Photocatalysis; Structural characteristics; Sustainable H<sub>2</sub> production ⓘ Covalent organic frameworks; Emerging trends; Growing demand; H 2 production; Integration techniques; Organic/inorganic; Photo-catalytic; Structural characteristics; Sustainable energy; Sustainable H2 production; Green Synthesis ⓘ English 2024 2024-12 10.1016/j.mser.2024.100858 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Review ⓘ Bio-Inspired Supramolecular Self-Assembled Carbon Nitride Nanostructures for Photocatalytic Water Splitting ⓘ Fast production of hydrogen and oxygen in large amounts at an economic rate is the need of the hour to cater to the needs of the most awaited hydrogen energy, a futuristic renewable energy solution. Production of hydrogen through simple water splitting via visible light photocatalytic approach using sunlight is considered as one of the most promising and sustainable approaches for generating clean fuels. For this purpose, a variety of catalytic techniques and novel catalysts have been investigated. Among these catalysts, carbon nitride is presently deemed as one of the best candidates for the visible light photocatalysis due to its unique molecular structure and adequate visible-range bandgap. Its bandgap can be further engineered by structural and morphological manipulation or by doping/hybridization. Among numerous synthetic approaches for carbon nitrides, supramolecular self-assembly is one of the recently developed elegant bottom-up strategies as it is bio-inspired and provides a facile and eco-friendly route to synthesize high surface area carbon nitride with superior morphological features and other semiconducting and catalytic properties. The current review article broadly covers supramolecular self-assembly synthesis of carbon nitride nanostructures and their photocatalytic water-splitting applications and provides a comprehensive outlook on future directions. Bio-inspired supramolecular self-assembly is an elegant bottom-up strategy to synthesize high surface area carbon nitride with superior morphological features and other semiconducting and catalytic properties in a facile and eco-friendly manner. The current review article provides a bird's eye view of supramolecular self-assembly synthesis of carbon nitride nanostructures and their photocatalytic water-splitting application and provides a comprehensive outlook.image ⓘ Dharmarajan, Nithinraj Panangattu; Vidyasagar, Devthade; Yang, Jae-Hun; Talapaneni, Siddulu Naidu; Lee, Jangmee; Ramadass, Kavitha; Singh, Gurwinder; Fawaz, Mohammed; Kumar, Prashant; Vinu, Ajayan ⓘ Univ Newcastle, Coll Engn Sci & Environm, Global Innovat Ctr Adv Nanomat, Newcastle, NSW 2308, Australia; Kyungpook Natl Univ, Mat Sci & Engn Dept, Daegu 41566, South Korea; Univ New South Wales, Sch Chem Engn, Sydney, NSW 2052, Australia ⓘ Talapaneni, Siddulu/D-7199-2015; Vinu, Ajayan/ADE-9111-2022; Singh, Gurwinder/S-9647-2019; Ramadass, Kavitha/M-6623-2015; KUMAR, PRASHANT/AAZ-9714-2020; Vidyasagar, Devthade/O-3930-2015 ⓘ 58700005800; 57201674442; 57157748500; 36140744200; 54975257400; 20436756800; 57208193925; 57565264000; 57281641400; 6603916006 ⓘ Prashant.Kumar@newcstle.edu.au;ajayan.vinu@newcastle.edu.au; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 36 2 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 7.61 2025-05-07 ⓘ 90 83 carbon nitride; photocatalysis; self-assembly; supramolecular; water splitting ⓘ TEMPLATE-FREE SYNTHESIS; VISIBLE-LIGHT; HYDROGEN-PRODUCTION; SINGLE-ATOM; POROUS G-C3N4; PRECURSOR STRATEGY; FACILE SYNTHESIS; NITROGEN-CONTENT; TUBULAR G-C3N4; NANOSHEETS ⓘ carbon nitride; photocatalysis; self-assembly; supramolecular; water splitting ⓘ Biomimetics; Carbon nitride; Catalysts; Energy gap; Hydrogen production; Photocatalytic activity; Self assembly; Solar fuels; Supramolecular chemistry; Energy solutions; Hydrogen Energy; Large amounts; Photocatalytic water splitting; Production of hydrogen; Renewable energies; Simple++; Supramolecular; Supramolecular self-assemblies; Water splitting; Nanostructures ⓘ English 2024 2024-01 10.1002/adma.202306895 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Controlled Migration of Lithium Cations by Diamine Bridges in Water-Processable Polymer-Based Solid-State Electrolyte Memory Layers for Organic Synaptic Transistors ⓘ Synaptic transistors require sufficient retention (memory) performances of current signals to exactly mimic biological synapses. Ion migration has been proposed to achieve high retention characteristics but less attention has been paid to polymer-based solid-state electrolytes (SSEs) for organic synaptic transistors (OSTRs). Here, OSTRs with water-processable polymer-based SSEs, featuring ion migration-controllable molecular bridges, which are prepared by reactions of poly(4-styrenesulfonic acid) (PSSA), diethylenetriamine (DETA), and lithium hydroxide (LiOH) are demonstrated. The ion conductivity of PSSA:LiOH:DETA (1:0.4:X, PLiD) films is remarkably changed by the molar ratio (X) of DETA, which is attributed to the extended distances between the PSSA chains by the DETA bridges. The devices with the PLiD layers deliver noticeably changed hysteresis reaching an optimum at X = 0.2, leading to the longest retention of current signals upon single/double pulses. The long-term potentiation test confirms that the present OSTRs can gradually build up the postsynaptic current by gate pulses of -2 V, while the long-term depression can be adjusted by varying the depression gate pulses (approximate to 0.2-1.2 V). The artificial neural network simulations disclose that the present OSTRs with the ion migration-controlled PLiD layers can perform synaptic processes with an accuracy of approximate to 96%. Forming molecular bridges between water-soluble polymer chains widens chain distances leading to the reduced conductivity of lithium cations. This controlled migration of ions delivers pronounced hysteresis characteristics in organic transistors, which can mimic the action of biological synapses. The present organic synaptic transistors with the controlled ion migration layers can proceed with neural computing processes at an accuracy of 96%. image ⓘ Lee, Woongki; Kim, Taehoon; Kim, Hwajeong; Kim, Youngkyoo ⓘ Kyungpook Natl Univ, Organ Nanoelect Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Dept Chem Engn, Daegu 41566, South Korea; Imperial Coll London, Dept Chem, London W12 0BZ, England; Imperial Coll London, Ctr Processable Elect, London W12 0BZ, England; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, Prior Res Ctr, Daegu 41566, South Korea ⓘ ⓘ 59041346100; 57218650958; 15520531700; 10340424400 ⓘ ykimm@knu.ac.kr; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 36 36 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 0.93 2025-05-07 ⓘ 3 3 controlled ion migration; molecular bridge; neuromorphic; organic synaptic transistor; solid-state electrolyte ⓘ HYSTERESIS; ARRAY ⓘ controlled ion migration; molecular bridge; neuromorphic; organic synaptic transistor; solid-state electrolyte ⓘ Amines; Ions; Lithium-ion batteries; Molar ratio; Solid electrolytes; Transistors; cation; diamine; diethylenetriamine; dihydrotachysterol; electrolyte; hydroxide; lithium; polymer; 4-Styrenesulfonic acids; Controled ion migration; Diethylenetriamine; Ion migration; Molecular bridges; Neuromorphic; Organic synaptic transistor; Organics; Polymer based; Solid-state electrolyte; article; artificial neural network; conductance; controlled study; depression; hysteresis; long term depression; long term potentiation; memory; memory consolidation; simulation; solid state; synapse; synaptic potential; transistor; water; Lithium compounds ⓘ English 2024 2024-09 10.1002/adma.202403645 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Effects of Dietary Intake of Heat-Inactivated Limosilactobacillus reuteri PSC102 on the Growth Performance, Immune Response, and Gut Microbiota in Weaned Piglets ⓘ This study aimed to investigate whether dietary supplementation with heatinactivated Limosilactobacillus reuteri PSC102 (LR) enhances immunological responses and growth performance in weaned pigs. Twenty-five weaned piglets were randomly allocated to five groups. Each treatment group had separate pens with five pigs each. The pigs were fed a diet supplemented with heat-inactivated LR at a concentration of 1x109 CFU/g for 28 days. Throughout the study period, regular measurements, including body weight, food consumption rate, and diarrhoeal frequency, were conducted. At the end of the experiment, blood samples were collected to assess cytokine and haptoglobin levels. Faecal samples, rectal swabs, and nasal swabs were collected for analysis of pathogenic bacterial growth using selective media. Additionally, faecal samples were analysed to determine the composition of the microbiota. Heat-inactivated LR enhances growth rate and feed efficiency while decreasing diarrheal frequency in weaned piglets. Compared to pigs fed a control diet, diets containing heat-inactivated LR exhibited increased serum levels of cytokines and decreased haptoglobin levels, demonstrating a beneficial effect on the presence of pathogenic microorganisms. Heat-inactivated LR diets alter the microbiota of piglets by enhancing alpha diversity and increasing the composition of beneficial bacteria. Overall, dietary heat-inactivated LR enhanced growth rates, regulated immunological responses in weaned pigs, and reduced post-weaning diarrhoea. Therefore, this suggests its potential as a health functional ingredient for humans and animals. ⓘ Cho, Hae-Yeon; Lee, Ga-Yeong; Ali, Md. Sekendar; Park, Seung-Chun ⓘ Kyungpook Natl Univ, Coll Vet Med, Inst Vet Biomed Sci, Lab Vet Pharmacokinet & Pharmacodynam, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Med, Dept Biomed Sci, Daegu 41944, South Korea; Kyungpook Natl Univ, Cardiovasc Res Inst, Daegu 41566, South Korea ⓘ Park, Seung-Chun/AAV-3388-2021 ⓘ 59381256800; 58413330500; 57219661221; 7501832396 ⓘ alipharm2000@gmail.com;parksch@knu.ac.kr; ⓘ PAKISTAN VETERINARY JOURNAL ⓘ PAK VET J ⓘ 0253-8318 2074-7764 44 3 SCIE VETERINARY SCIENCES ⓘ 2024 5.4 2.1 2.48 2025-05-07 ⓘ 4 4 Probiotics; Weaned piglets; Growth performance; Diarrhoea; Immune response; Microbiota ⓘ PROBIOTICS; LIVE ⓘ Growth performance Diarrhoea; Immune response; Microbiota; Probiotics; Weaned piglets ⓘ antibiotic agent; cytokine; gamma interferon; haptoglobin; immunoglobulin A; interleukin 1 receptor blocking agent; interleukin 10; interleukin 12; interleukin 18; interleukin 1alpha; interleukin 1beta; interleukin 2; interleukin 4; interleukin 6; probiotic agent; RNA 16S; tumor necrosis factor; Acidaminococcaceae; animal experiment; Article; Bacillus subtilis; bacterial growth; bacterial infection; bacterial translocation; bacterium isolation; Bacteroides; Bacteroidetes; body weight; body weight gain; Cellulomonas; Clostridium perfringens; colony forming unit; controlled study; diarrhea; diet supplementation; dietary intake; enzyme linked immunosorbent assay; Escherichia coli; Eubacterium; Faecalibacterium; feces analysis; feces microflora; feed efficiency; Firmicutes; food intake; gastrointestinal tract; gene sequence; growth rate; immune response; intestine flora; Lachnospiraceae; Lactobacillus; Lactobacillus reuteri; lipid diet; microbial community; nonhuman; Peptostreptococcaceae; piglet; prevalence; Prevotella; Prevotellaceae; Proteobacteria; Ruminococcaceae; Selenomonadaceae; Shannon index; Simpson index; Staphylococcus aureus; weaning ⓘ English 2024 2024 10.29261/pakvetj/2024.224 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Junctionless Negative-Differential-Resistance Device Using 2D Van-Der-Waals Layered Materials for Ternary Parallel Computing ⓘ Negative-differential-resistance (NDR) devices offer a promising pathway for developing future computing technologies characterized by exceptionally low energy consumption, especially multivalued logic computing. Nevertheless, conventional approaches aimed at attaining the NDR phenomenon involve intricate junction configurations and/or external doping processes in the channel region, impeding the progress of NDR devices to the circuit and system levels. Here, an NDR device is presented that incorporates a channel without junctions. The NDR phenomenon is achieved by introducing a metal-insulator-semiconductor capacitor to a portion of the channel area. This approach establishes partial potential barrier and well that effectively restrict the movement of hole and electron carriers within specific voltage ranges. Consequently, this facilitates the implementation of both a ternary inverter and a ternary static-random-access-memory, which are essential components in the development of multivalued logic computing technology. A negative-differential-resistance (NDR) device featuring a junctionless vdW channel. The approach for inducing the NDR phenomenon revolves around selectively inhibiting carrier transport, a result accomplished by creating a partial potential barrier within the junctionless channel. To showcase the utility of the junctionless NDR device for a ternary hardware neural network, its practical application is presented by configuring ternary logic circuits. image ⓘ Lee, Taeran; Jung, Kil-Su; Seo, Seunghwan; Lee, Junseo; Park, Jihye; Kang, Sumin; Park, Jeongwon; Kang, Juncheol; Ahn, Hogeun; Kim, Suhyun; Lee, Hae Won; Lee, Doyoon; Kim, Ki Seok; Kim, Hyunseok; Heo, Keun; Kim, Sunmean; Bae, Sang-Hoon; Kang, Seokhyeong; Kang, Kibum; Kim, Jeehwan; Park, Jin-Hong ⓘ Sungkyunkwan Univ SKKU, Dept Elect & Comp Engn, Suwon 16419, South Korea; Samsung Elect Co Ltd, Flash Memory Technol Design Team, Giheung 17113, South Korea; Sungkyunkwan Univ SKKU, Dept Semicond & Display Engn, Suwon 16419, South Korea; Korea Adv Inst Sci & Technol KAIST, Dept Mat Sci & Engn, Daejeon 34141, South Korea; MIT, Res Lab Elect, Cambridge, MA 02139 USA; Pohang Univ Sci & Technol POSTECH, Dept Elect Engn, Pohang 37673, South Korea; MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA; MIT, Dept Mech Engn, Cambridge, MA 02139 USA; Univ Illinois Urbana Champaign UIUC, Dept Elect & Comp Engn, Urbana, IL 61801 USA; Univ Illinois Urbana Champaign UIUC, Nick Holonyak Jr Micro & Nanotechnol Lab, Urbana, IL 61801 USA; Jeonbuk Natl Univ, Sch Semicond Sci & Technol, Jeonju 54896, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Coll IT Engn, Daegu 41566, South Korea; Washington Univ St Louis, Dept Mech Engn & Mat Sci, St Louis, MO 63130 USA; Washington Univ St Louis, Inst Mat Sci & Engn, St Louis, MO 63130 USA; Korea Adv Inst Sci & Technol KAIST, Grad Sch Semicond Technol, Daejeon 34141, South Korea ⓘ Kim, Jeehwan/MGV-2271-2025; PARK, JIN-HONG/JOP-7872-2023; Kang, Kibum/A-7225-2018; Ahn, Hogeun/LNP-3312-2024; Keun, Heo/HGA-6229-2022 ⓘ 57226066484; 57211441825; 57204149472; 59096811800; 58046196900; 57201029613; 57604486300; 57833117300; 57607423900; 59563594300; 57223255178; 57204127881; 57155413700; 23395055200; 55881212500; 57193135112; 36902640200; 35848454700; 23005091400; 35179593300; 57372592800 ⓘ jhpark9@skku.edu; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 36 24 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 3.1 2025-05-07 ⓘ 11 14 2D vdW layered materials; brain-inspired parallel computing; multivalued logic computing; negative-differential-resistance device ⓘ DIODES; TRANSPORT ⓘ 2D vdW layered materials; brain-inspired parallel computing; multivalued logic computing; negative-differential-resistance device ⓘ Computer circuits; Many valued logics; Metal insulator boundaries; Negative resistance; Semiconductor doping; Van der Waals forces; 2d vdw layered material; Brain-inspired; Brain-inspired parallel computing; Computing technology; Layered material; Multivalued logic computing; Negative differential resistance device; Negative differential resistances; Parallel com- puting; Van der Waal; adult; article; controlled study; device comparison; electric potential; electron; energy consumption; female; human; male; respiratory gas humidifier; semiconductor; signal transduction; Energy utilization ⓘ English 2024 2024-06 10.1002/adma.202310015 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Mapping the evolution of marine carbon during the last deglaciation: δ13C perspectives on the deglacial ocean carbon cycle ⓘ The changes in the ocean circulation and biological pump played crucial roles in the rise in atmospheric CO2 during the last deglaciation. However, our understanding remains limited regarding which processes-air-sea exchange, ocean circulation, and the biological pump-primarily influence the spatial dynamics of the oceanic carbon cycle. To address this knowledge gap, the present study compiles global stable carbon isotope (delta 13C) records from various sources, including shallow and deep planktic, along with epifaunal and infaunal benthic foraminifera. The synthesis reveals a total increase of 0.37 +/- 0.05 parts per thousand in marine delta 13 C values since the last glacial maximum. Of this increase, 68 +/- 5 % is attributed to the response of the oceans in the southern hemisphere, while 32 +/- 4 % is attributed to the northern hemisphere. By analyzing the difference between planktic and benthic foraminifera, a decreased vertical delta 13 C gradient ( delta 13 C sp-sb ) is observed during the last deglaciation, indicating rapid carbon exchange between surface and deep waters during deglaciation. Additionally, the offset between the epifaunal and infaunal delta 13 C ( delta 13 C sb-db ) provides insights into changes in productivity and bottom water oxygenation. Overall, the global synthesis suggests that the delta 13 C variation is largely controlled by ocean circulation in the northern hemisphere and at higher latitudes of the southern hemisphere, while primary production significantly influences subtropical regions. Furthermore, the delta 13 C confirms that the rise in atmospheric CO2 during the first phase of Heinrich Stadial 1 (HS1) resulted from reduced primary production in subtropical regions along with strong ventilation in the second phase of HS1. Interestingly, the delta 13 C variations during the Younger Dryas (YD) suggest strong ventilation without evident changes in primary production. This fourdimensional dataset provides valuable insights into the transient changes in the ocean carbon cycle during deglaciation. ⓘ Fang, Ling; Wang, Ninglian; Kim, Minkyoung ⓘ Northwest Univ, Urban & Environm Sci Dept, Shaanxi Key Lab Earth Surface Syst & Environm Carr, Xian, Peoples R China; Chinese Acad Sci, Inst Tibetan Plateau Res, State Key Lab Tibetan Plateau Earth Syst Environm, Beijing 100101, Peoples R China; Kyungpook Natl Univ, Dept Oceanog, KNU G LAMP Project Grp, Daegu, South Korea ⓘ ⓘ 58183605000; 35090697300; 59510681800 ⓘ nlwang@nwu.edu.cn; ⓘ EARTH-SCIENCE REVIEWS ⓘ EARTH-SCI REV ⓘ 0012-8252 1872-6828 258 SCIE GEOSCIENCES, MULTIDISCIPLINARY ⓘ 2024 10 2.1 0 2025-05-07 ⓘ 0 0 Stable carbon isotope; Marine carbon cycle; Deglaciation ⓘ MERIDIONAL OVERTURNING CIRCULATION; ATMOSPHERIC CO2; SOUTHERN-OCEAN; BENTHIC FORAMINIFERA; DELTA-C-13; CLIMATE; C-13; ISOTOPES; PRODUCTIVITY; RELEASE ⓘ Deglaciation; Marine carbon cycle; Stable carbon isotope ⓘ benthic foraminifera; carbon cycle; carbon isotope; last deglaciation; mapping; Northern Hemisphere; oceanic circulation; Southern Hemisphere; stable isotope; Younger Dryas ⓘ English 2024 2024-11 10.1016/j.earscirev.2024.104966 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Molecular Responses of HSP60 and HSP90 to Temperature Variations in Stallion Testes during Breeding and Non-breeding Seasons ⓘ Heat shock proteins (HSPs) are a group of molecular chaperones that are crucial for the proper folding and assembly of proteins and the protection of somatic and germ cells from damage caused by temperature changes. However, the localization and seasonal variation patterns of HSPs in stallions' testes remain unclear. Thus, we investigated the expression and seasonal variations in the localization of HSP60 and HSP90 in the testes of stallions. Testes from nine Thoroughbred stallions collected following castration during the non-breeding season (NBS) and two different environmental temperature conditions (normal temperature, NT; March-May and hot temperature, HT; June-August) during the breeding season (BS) were used. Testis tissues were subjected to Reverse transcription-quantitative polymerase chain reaction, Western Blot (WB) analysis and immunofluorescence (IF) assay. The results revealed that the relative abundance of HSP60 and HSP90 mRNA transcripts was significantly upregulated under NT and HT conditions during BS compared with that during NBS conditions. The WB analysis showed that the relative intensity of protein bands was significantly higher in NT and HT conditions during the BS than that of those during the NBS. Immunofluorescence assay showed localization of HSP60 in the cytoplasm of the Leydig cells during both seasons. HSP90 primarily showed immunostaining in undifferentiated spermatogonia and primary spermatocytes in NT and HT conditions and was additionally expressed in the spermatids during the NBS. The spermatogenesis was not monitored in the present study; however, findings of this study suggest that the localization of HSP60 and HSP90 varies in different seasons depending on the temperature, providing insight into the potential mechanisms influencing spermatogenesis during breeding and non-breeding seasons in stallions. ⓘ Shakeel, Muhammad; Yobin, Song; Yoon, Minjung ⓘ Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Horse Compan & Wild Anim Sci, Sangju 37224, South Korea; Kyungpook Natl Univ, Res Inst Innovat Anim Sci, Sangju 37224, South Korea; Pir Mehr Ali Shah Arid Agr Univ, Fac Vet & Anim Sci, Dept Clin Studies, Rawalpindi 44000, Pakistan ⓘ ⓘ 57209179360; 59219652600; 22137296500 ⓘ mjyoonemail@gmail.com; ⓘ PAKISTAN VETERINARY JOURNAL ⓘ PAK VET J ⓘ 0253-8318 2074-7764 44 2 SCIE VETERINARY SCIENCES ⓘ 2024 5.4 2.1 0 2025-05-07 ⓘ 0 0 Heat-shock proteins; Spermatogenesis; variation; cells; Stallions ⓘ HEAT-SHOCK PROTEINS; BOAR SPERMATOZOA; EXPRESSION; HEAT-SHOCK-PROTEIN-60; LOCALIZATION; MOTILITY; STRESS; CELLS; GRP78 ⓘ Heat-shock proteins; Leydig cells; Spermatogenesis; Stallions; Temperature variation ⓘ chaperonin 60; heat shock protein; heat shock protein 90; adult; analysis of variance; animal experiment; animal tissue; Article; breeding; imaging; immunofluorescence; immunofluorescence assay; immunofluorescence microscopy; immunohistochemistry; mouse; mRNA expression level; Non breeding; nonhuman; polyacrylamide gel electrophoresis; protein expression; radioimmunoprecipitation; real time polymerase chain reaction; real time reverse transcription polymerase chain reaction; reverse transcription polymerase chain reaction; season; semen analysis; spermatid; spermatozoon motility; stallion; temperature; testis; testis tissue; Western blotting ⓘ English 2024 2024 10.29261/pakvetj/2024.184 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Production of chitosan-based composite film reinforced with lignin-rich lignocellulose nanofibers from rice husk ⓘ Lignocellulosic nanofibers (LCNFs), implying lignin -containing cellulose fibers, maintain the properties of both lignin and cellulose, which are hydrophobic and hydrophilic, respectively. The presence of hydrophobic lignin in LCNFs is expected to be an economical and attractive option that can improve the thermal and mechanical properties of polymers. Thus, this study was conducted to produce lignin -rich LCNFs from sugar -rich waste obtained from rice husks after acidic pretreatment. The LCNFs were produced from the lignin -rich solid fractions obtained after pretreatment and enzymatic hydrolysis, which were then incorporated as an additive into a chitosan-based film. The variations in lignin content in the range of approximately 50.6%-66.8% in differently obtained LCNFs gave significantly different optical strengths and mechanical properties. These controllable processes may allow for customized film formation. Additionally, the glucose -rich liquid fractions obtained after pretreatment and enzymatic hydrolysis were used as a substrate for ethanol fermentation to achieve total utilization of rice husk biomass waste. In conclusion, the lignin -rich biomass fraction holds promise as a suitable material for chitosan-LCNF film and has the potential to increase the economic feasibility of the biomaterial industry. ⓘ Kang, Hye Jee; Lee, Yeon Ju; Lee, Jin Kyoung; Nurika, Irnia; Suhartini, Sri; Choe, Deokyeong; Kim, Dong Hyun; Choi, Hoon; Murphy, Natasha P.; Kim, Ho Yong; Jung, Young Hoon ⓘ Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; CPR S&T Co Ltd, Gunpo 15880, South Korea; Univ Brawijaya, Fac Agr Technol, Dept Agroind Technol, Malang 65145, Indonesia; Renewable Resources & Enabling Sci Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA; Korea Res Inst Chem Technol, Ctr Biobased Chem, Ulsan 44429, South Korea ⓘ Choi, Hoon/AAL-4278-2021; Suhartini, Sri/AAC-3161-2021; Nurika, Irnia/ACR-8053-2022; Jung, Young/F-1703-2013; Choe, Deokyeong/C-7173-2011; Kim, Dong Hyun/LDT-2672-2024 ⓘ 57219656318; 58700074500; 57911455300; 57201481413; 43462070300; 37074453400; 55574224522; 57202438980; 58961519100; 24776258300; 55550063700 ⓘ younghoonjung@knu.ac.kr; ⓘ JOURNAL OF BIORESOURCES AND BIOPRODUCTS ⓘ J BIORESOUR BIOPROD ⓘ 2097-2415 2369-9698 9 2 SCIE MATERIALS SCIENCE, PAPER & WOOD ⓘ 2024 13 2.1 3.17 2025-05-07 ⓘ 12 12 Rice husk; Lignocellulose nanofiber; Lignin-based material; Chitosan film; Upcycling ⓘ CELLULOSE NANOFIBRILS; RESIDUAL LIGNIN; PRETREATMENT; BIOMASS; ANTIOXIDANT; OIL ⓘ Chitosan film; Lignin-based material; Lignocellulose nanofiber; Rice husk; Upcycling ⓘ Chitosan; Enzymolysis; Film; Lignocellulose; Pretreatment; Rice; Water Repellence; Cellulose films; Chitosan; Enzymatic hydrolysis; Hydrophobicity; Lignin; Nanofibers; Cellulose fiber; Chitosan film; Hydrophobic and hydrophilic; Lignin-based material; Ligno-cellulosics; Lignocellulose nanofiber; Pre-treatments; Property; Rice husk; Upcycling; Lignocellulose ⓘ English 2024 2024-05 10.1016/j.jobab.2024.03.002 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Spatiotemporal variation of sterols in sediment as markers of primary production and ocean sewage dumping in the southwestern East Sea (Japan Sea) ⓘ The sedimentation of organic carbon in the Ulleung Basin, in the southwestern East Sea (Japan Sea) was investigated using radiocarbon and sterols. The accumulation rates of organic carbon and the contents of brassicasterol and dinosterol were higher on the slope than in the central basin, reflecting the surface water productivity, whereas cholesterol showed similar or higher contents in the central basin. The coprostanol concentration in surface sediments reflected the dispersion of sewage dumped in this region. The vertical distribution showed that the coprostanol concentration was the highest in the top 5-cm layer near the Korea Strait, close to one of the two dumping sites. A high coprostanol concentration was also found near the coast further north, where the content peaked at similar to 10 cm depth. The vertical distribution of coprostanol helped to estimate the sediment accumulation rate at sites where radiocarbon gradient was too small or the values were too variable. ⓘ Kim, Minkyoung; Hwang, Jeomshik; Montlucon, Daniel B.; Haghipour, Negar; Kim, Dongyoung; Kim, Ho Jung; Choi, Ki Young; Kim, Chang Joon; Kang, Chang-Keun; Kim, Young-Il; Eglinton, Timothy I. ⓘ Kyungpook Natl Univ, Dept Oceanog, Daegu, South Korea; Kyungpook Natl Univ, KNU Inst Basic Sci, KNU G LAMP Project Grp, Daegu, South Korea; Seoul Natl Univ, Res Inst Oceanog, Sch Earth & Environm Sci, Seoul, South Korea; Swiss Fed Inst Technol Zurich ETHZ, Geol Inst, Zurich, Switzerland; ETHZ, Lab Ion Beam Phys, Zurich, Switzerland; Gwangju Inst Sci & Technol, Sch Earth Sci & Environm Engn, Gwangju, South Korea; Korea Inst Ocean Sci & Technol, Busan, South Korea; Korea Inst Ocean Sci & Technol, East Sea Res Inst, Uljin, South Korea ⓘ Choi, Ki-Young/H-3305-2012; Haghipour, Negar/K-9683-2017; Kang, Chang-Keun/GLR-8512-2022 ⓘ 57212315624; 7403896714; 7801384591; 55387532300; 57201559497; 59204976800; 57217049669; 55372096100; 8746920200; 57214047119; 57203175556 ⓘ jeomshik@snu.ac.kr; ⓘ MARINE POLLUTION BULLETIN ⓘ MAR POLLUT BULL ⓘ 0025-326X 1879-3363 205 SCIE ENVIRONMENTAL SCIENCES;MARINE & FRESHWATER BIOLOGY ⓘ 2024 4.9 2.1 1.64 2025-05-07 ⓘ 3 3 Coprostanol; Brassicasterol; Dinosterol; Cholesterol; Radiocarbon; Ocean dumping ⓘ ORGANIC-CARBON ACCUMULATION; BIOLOGICAL HOT-SPOT; ULLEUNG BASIN; SINKING PARTICLES; SURFACE SEDIMENTS; MARINE-SEDIMENTS; FECAL POLLUTION; GUANABARA BAY; MIXING RATES; MATTER ⓘ Brassicasterol; Cholesterol; Coprostanol; Dinosterol; Ocean dumping; Radiocarbon ⓘ Environmental Monitoring; Geologic Sediments; Japan; Oceans and Seas; Sewage; Sterols; Water Pollutants, Chemical; Pacific Ocean; Sea of Japan; Alcohols; Lipids; Ocean dumping; Organic carbon; Sediments; Sewage; Surface waters; brassicasterol; cholesterol; coprosterol; dinosterol; organic carbon; sterol; unclassified drug; sterol; Accumulation rates; Brassicasterol; Central Basin; Coprostanol; Dinosterol; Japan Sea; Primary production; Radiocarbon; Spatio-temporal variation; Vertical distributions; accumulation rate; dispersion; marine pollution; organic carbon; primary production; sedimentation; sewage; spatiotemporal analysis; sterol; waste disposal; Article; column chromatography; dumping; elemental analysis; lipid analysis; liquid liquid extraction; mass fragmentography; microwave assisted extraction; saponification; sea; sediment; spatiotemporal analysis; chemistry; environmental monitoring; Japan; sea; sewage; water pollutant; Cholesterol ⓘ English 2024 2024-08 10.1016/j.marpolbul.2024.116680 ⓘ 바로가기 바로가기 바로가기 바로가기
○ Article ⓘ Spiking Neural Network Integrated with Impact Ionization Field-Effect Transistor Neuron and a Ferroelectric Field-Effect Transistor Synapse ⓘ The integration of artificial spiking neurons based on steep-switching logic devices and artificial synapses with neuromorphic functions enables an energy-efficient computer architecture that mimics the human brain well, known as a spiking neural network (SNN). 2D materials with impact ionization or ferroelectric characteristics have the potential for use in such devices. However, research on 2D spiking neurons remains limited and investigations of 2D artificial synapses far more common. An innovative 2D spiking neuron is implemented using a WSe2 impact ionization transistor (I2FET), while a spiking neural network is formed by combining it with a 2D ferroelectric synaptic device (FeFET). The suggested 2D spiking neuron demonstrates precise spiking behavior that closely resembles that of actual neurons. In addition, it achieves a low energy consumption of 2 pJ/spike. The better impact ionization properties of WSe2 are responsible for this efficiency. Furthermore, an all-2D SNN consisting of 2D I2FET neurons and 2D FeFET synapses is constructed, which achieves high accuracy of 87.5% in a face classification task by unsupervised learning. The integration of a 2D SNN with 2D steep-switching spiking neuronal devices and 2D synaptic devices shows great potential for the development of neuromorphic systems with improved energy efficiency and computational capabilities. © 2024 Wiley-VCH GmbH. ⓘ Choi, Haeju; Baek, Sungpyo; Jung, Hanggyo; Kang, Taeho; Lee, Sangmin; Jeon, Jongwook; Jang, Byung Chul; Lee, Sungjoo ⓘ SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, South Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, South Korea; Department of Semiconductor Convergence Engineering, Sungkyunkwan University, Suwon, 16419, South Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, South Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, South Korea; School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, Daegu, 41566, South Korea; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Science and Technology, Sungkyunkwan University, Suwon, 16419, South Korea, Department of Nano Engineering, Sungkyunkwan University, Suwon, 16419, South Korea ⓘ ⓘ 57211486299; 57221553863; 57976776600; 57855655500; 55716515600; 9037768700; 9238827900; 36016889200 ⓘ leesj@skku.edu;bc.jang@knu.ac.kr; ⓘ Advanced Materials ⓘ ADV MATER ⓘ 0935-9648 1521-4095 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 0.62 2025-05-07 ⓘ 4 ⓘ ⓘ ferroelectric transistor; impact ionization transistor; spiking neural network; spiking neuron; unsupervised learning ⓘ Breath controlled devices; Impact ionization; Ion sensitive field effect transistors; Neurons; Surface discharges; Artificial synapse; Ferroelectric fieldeffect transistors (FeFET); Ferroelectric transistors; Field-effect transistor; Impact ionization transistor; Neural-networks; Neuromorphic; Spiking neural network; Spiking Neurones; Switching logic; Ferroelectricity ⓘ English Article in press 2024 10.1002/adma.202406970 ⓘ 바로가기 바로가기 바로가기
○ ○ Review ⓘ Strategies to Modulate the Copper Oxidation State Toward Selective C2+ Production in the Electrochemical CO2 Reduction Reaction ⓘ The electrochemical reduction of CO2 to form value-added chemicals receives considerable attention in recent years. Copper (Cu) is recognized as the only element capable of electro-reducing CO2 into hydrocarbons with two or more carbon atoms (C2+), but the low product selectivity of the Cu-based catalyst remains a major technological challenge to overcome. Therefore, identification of the structural features of Cu-based catalysts is of great importance for the highly selective production of C2+ products (ethylene, ethanol, n-propanol, etc.), and the oxidation state of Cu species in the catalysts is found critical to the catalyst performance. This review introduces recent efforts to fine-tune the oxidation state of Cu to increase carbon capture and produce specific C2+ compounds, with the intention of greatly expediting the advance in the catalyst designs. It also points to the remaining challenges and fruitful research directions for the development of Cu-based catalysts that can shape the practical CO2 reduction technology. ⓘ Jun, Minki; Kundu, Joyjit; Kim, Duck Hyun; Kim, Minah; Kim, Dongyong; Lee, Kwangyeol; Choi, Sang-Il ⓘ Korea Univ, Dept Chem, Seoul 02841, South Korea; Korea Univ, Res Inst Nat Sci, Seoul 02841, South Korea; Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea ⓘ ; Choi, Sang-Il/N-7571-2013; Choi, Sang-Il/AGR-1133-2022; Kundu, Joyjit/AAY-7466-2021; Kim, Duck-Hyun/ABI-5920-2020; Lee, Kwangyeol/A-9269-2010; Jun, Minki/KIK-9653-2024 ⓘ 57200299344; 57209325902; 58892045700; 57224306032; 57224322291; 8510322900; 56167600800 ⓘ kylee1@korea.ac.kr;sichoi@knu.ac.kr; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 36 21 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 3.55 2025-05-07 ⓘ 47 45 CO2 reduction; copper; electrocatalysts; oxidation state, selectivity ⓘ CARBON-DIOXIDE; GRAIN-BOUNDARIES; MULTICARBON PRODUCTS; ELECTROREDUCTION; ELECTROCATALYSTS; ELECTRODES; MORPHOLOGY; MECHANISM; CATALYSTS; INSIGHTS ⓘ CO<sub>2</sub> reduction; copper; electrocatalysts; oxidation state, selectivity ⓘ Catalyst selectivity; Copper; Electrocatalysts; Electrolytic reduction; Ethylene; Oxidation; alcohol; carbon; copper; ethylene; hydrocarbon; propanol; CO 2 reduction; Copper oxidation; Cu-based catalyst; Electrochemical reductions; Electrochemicals; Oxidation state; Oxidation state, selectivity; Reduction reaction; State selectivity; Value-added chemicals; atom; carbon capture; catalyst; controlled study; electrochemical analysis; oxidation; reduction (chemistry); review; Carbon dioxide ⓘ English 2024 2024-05 10.1002/adma.202313028 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Synchronous Diagnosis of Respiratory Viruses Variants via Receptonics Based on Modeling Receptor-Ligand Dynamics ⓘ The transmission and pathogenesis of highly contagious fatal respiratory viruses are increasing, and the need for an on-site diagnostic platform has arisen as an issue worldwide. Furthermore, as the spread of respiratory viruses continues, different variants have become the dominant circulating strains. To prevent virus transmission, the development of highly sensitive and accurate on-site diagnostic assays is urgently needed. Herein, a facile diagnostic device is presented for multi-detection based on the results of detailed receptor-ligand dynamics simulations for the screening of various viral strains. The novel bioreceptor-treated electronics (receptonics) device consists of a multichannel graphene transistor and cell-entry receptors conjugated to N-heterocyclic carbene (NHC). An ultrasensitive multi-detection performance is achieved without the need for sample pretreatment, which will enable rapid diagnosis and prevent the spread of pathogens. This platform can be applied for the diagnosis of variants of concern in clinical respiratory virus samples and primate models. This multi-screening platform can be used to enhance surveillance and discriminate emerging virus variants before they become a severe threat to public health. A receptor-ligand binding reaction based receptonics platform is presented as a facile diagnostic device to discriminate numerous strains of respiratory viruses. Diagnosis of respiratory viruses and their variants indicate its potential as on-site screening platform for fatal diseases without the need for complex additional equipment. The newly developed receptonics shows the possibility for the application of clinical samples and samples from primate model.image ⓘ Seo, Sung Eun; Kim, Kyung Ho; Ha, Siyoung; Oh, Hanseul; Kim, Jinyeong; Kim, Soomin; Kim, Lina; Seo, Minah; An, Jai Eun; Park, Yoo Min; Lee, Kyoung G.; Kim, Yu Kyung; Kim, Woo-Keun; Hong, Jung Joo; Song, Hyun Seok; Kwon, Oh Seok ⓘ Korea Res Inst Biosci & Biotechnol KRIBB, Infect Dis Res Ctr, 125 Gwahak Ro, Daejeon 34141, South Korea; Univ Maryland Eastern Shore, Sch Pharm, Princess Anne, MD 21853 USA; Chungbuk Natl Univ, Coll Vet Med, Cheongju 28644, South Korea; Korea Inst Sci & Technol, Sensor Syst Res Ctr, Seoul 02792, South Korea; Korea Univ, KU KIST Grad Sch Converging Sci & Technol, Seoul 02841, South Korea; Natl NanoFab Ctr, Ctr NanoBio Dev, 291 Daehak Ro, Daejeon 34141, South Korea; Kyungpook Natl Univ, Sch Med, Dept Clin Pathol, Daegu 41944, South Korea; Korea Inst Toxicol, Dept Predict Toxicol, 141 Gajeong Ro, Daejeon 34114, South Korea; Korea Res Inst Biosci & Biotechnol, Natl Primate Res Ctr, Cheongju 28116, South Korea; Sungkyunkwan Univ, SKKU Adv Inst Nanotechnol SAINT, Dept Nano Engn, Suwon 16419, South Korea; Sungkyunkwan Univ, Dept Nano Sci & Technol, Suwon 16419, South Korea; Korea Univ Sci & Technol UST, KRIBB Sch Biosci, Daejeon 34141, South Korea; Yonsei Univ, Dept Civil & Environm Engn, Seoul 03722, South Korea; Korea Res Inst Biosci & Biotechnol KRIBB, Immunotherapy Res Ctr, Daejeon 34141, South Korea ⓘ Lee, Eun-Hye/KDN-5679-2024 ⓘ 57208651527; 57226848520; 55570093100; 56683810800; 57207438329; 57874271100; 57737028500; 25640297500; 57235640400; 55494468700; 57208732163; 9237571900; 36008772300; 36808240600; 58168289300; 7402195808 ⓘ hong75@kribb.re.kr;hssong@kist.re.kr;oskwon79@skku.edu; ⓘ ADVANCED MATERIALS ⓘ ADV MATER ⓘ 0935-9648 1521-4095 36 9 SCIE CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER ⓘ 2024 26.8 2.1 2.48 2025-05-07 ⓘ 8 8 field-effect transistors; interfacing chemistry; portable devices; receptonics; respiratory viruses ⓘ RAMAN-SPECTROSCOPY; ACE2 RECEPTOR; SARS-COV-2; INFECTION ⓘ field-effect transistors; interfacing chemistry; portable devices; receptonics; respiratory viruses ⓘ Animals; Biological Assay; Electronics; Graphite; Ligands; Diagnosis; Field effect transistors; Graphene; Graphene transistors; Health risks; Ligands; Organic compounds; Screening; Transmissions; graphite; ligand; Diagnostic assays; Diagnostic device; Field-effect transistor; Interfacing chemistry; Multidetection; Portable device; Receptonic; Receptor ligands; Respiratory virus; Virus transmission; animal; bioassay; Viruses ⓘ English 2024 2024-03-01 10.1002/adma.202303079 ⓘ 바로가기 바로가기 바로가기 바로가기
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