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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 |
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| ○ | Article | Genomic and Functional Insights Into Bacillus cereus SH-10 for Mitigating Lead Stress in Soybean | Beneficial microbes serve as powerful biological tools for enhancing stress tolerance in crops. This study aimed to isolate stress-tolerant, plant growth-promoting bacterium, characterise it using high-throughput next-generation sequencing and expression profiling and assess its potential in improving soybean (Glycine max (L.) Merr.) growth and development under lead (Pb) stress. We identified Bacillus cereus SH-10 as a metal-resistant rhizobacterium capable of tolerating Pb concentrations exceeding 75 mg/kg. When inoculated into soybean plants under Pb stress, SH-10 significantly improved phosphorus and calcium uptake and reduced Pb accumulation. This reduction was associated with increased expression of the stress signalling protein GmCYP82A3. SH-10 also modulated the phytohormone balance by lowering abscisic acid (ABA) levels in shoots and enhancing salicylic acid (SA) biosynthesis. These hormonal shifts corresponded with the downregulation of ABA biosynthesis-related genes (GmNCED1, NCED3, GmbZIP) and the upregulation of the SA biosynthesis gene GmPAL1. Furthermore, SH-10 significantly mitigated oxidative stress in Pb-exposed plants, while enhancing antioxidant activities. The study also identified two phytohormone biosynthesis pathways in rhizobacteria: (1) Terpenes → β-carotene → Xanthoxin → ABA, and (2) Terpenes → Geranylgeranyl diphosphate → gibberellic acid. These findings highlight Bacillus cereus SH-10 as a promising biofertiliser that alleviates Pb toxicity in crops. © 2025 John Wiley & Sons Ltd. | Shaffique, Shifa; Farooq, Muhammad; Adhikari, Arjun; Khan, Muhammad Aaqil; Kang, Sang-Mo; Lee, In-Jung | School of Applied Bioscience, Kyungpook National University, Daegu, South Korea; Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Muscat, Al-Khoudh, Oman; School of Applied Bioscience, Kyungpook National University, Daegu, South Korea; School of Applied Bioscience, Kyungpook National University, Daegu, South Korea; School of Applied Bioscience, Kyungpook National University, Daegu, South Korea; School of Applied Bioscience, Kyungpook National University, Daegu, South Korea | 57203898867; 56260585600; 57195601415; 57188585606; 56189696900; 58950745900 | ijlee@knu.ac.kr; farooqcp@squ.edu.om; | Plant, Cell and Environment | PLANT CELL ENVIRON | 0140-7791 | 1365-3040 | SCIE | PLANT SCIENCES | 2024 | 6.3 | 7.1 | 0 | bacterium; metabolic regions; plant defence; ROS; stress tolerance; terpenes | English | Article in press | 2025 | 10.1111/pce.70052 | 바로가기 | 바로가기 | 바로가기 | ||||||||||||
| ○ | Article | Ligand Engineering of Co-N4 Single-Atom Catalysts for Highly-Active and Stable Acidic Oxygen Evolution | The development of stable and efficient single-atom catalysts (SACs) for the oxygen evolution reaction (OER) in acidic media remains challenging. This work reports a novel NH3-assisted pyrolysis strategy to synthesize Co-N4 SACs with controlled nitrogen coordination environments on crumpled graphene supports. The pyrrolic N4-coordinated Co sites demonstrate superior OER activity compared to their pyridinic counterparts, achieving an overpotential of 351 mV at 10 mA cm−2 in 0.5 m H2SO4. Combined density functional theory calculations and operando X-ray absorption spectroscopy reveal that the pyrrolic coordination environment facilitates enhanced OH− adsorption and subsequent OER kinetics due to its unique electronic structure and geometric flexibility. A multi-layered protective mechanism in the pyrrolic system enables exceptional stability during long-term acidic OER operation, stemming from higher defect formation energy of Co sites and strategic distribution of sacrificial nitrogen species in the graphene network. These findings provide fundamental insights into designing stable single-atom catalysts for challenging electrochemical applications. © 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH. | Jeong, Taeyoung; Kim, Kiwon; Kim, Byung-Hyun; Choi, Sang-Il; Choi, Chang Hyuck; Kang, Joonhee; Kim, Myeongjin | School of Energy Engineering, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu, 41566, South Korea; School of Energy Engineering, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu, 41566, South Korea; Department of Chemical and Molecular Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Gyeonggi-do, Ansan-si, 15588, South Korea, Department of Applied Chemistry, Center for Bionano Intelligence Education and Research, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Gyeonggi-do, Ansan-si, 15588, South Korea; Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu, 41566, South Korea; Department of Chemistry, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, 37673, South Korea, Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea; Department of Nano Fusion Technology, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea, Department of Nanoenergy Engineering, Pusan National University, 2 Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 46241, South Korea; School of Energy Engineering, Kyungpook National University, 80 Daehak-ro, Bukgu, Daegu, 41566, South Korea | 59768982600; 59395834000; 55502655900; 56167600800; 59683355400; 56076915900; 55541419000 | myeongjinkim@knu.ac.kr; chchoi@postech.ac.kr; j.kang@pusan.ac.kr; | Advanced Science | ADV SCI | N/A | 2198-3844 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2024 | 14.1 | 7.1 | N/A | 0 | cobalt; orbital rearrangement; oxygen evolution reaction; pyrrolic N; single atom catalyst | Pyrolysis; Acidic media; Coordination environment; Evolution reactions; Orbital rearrangement; Oxygen evolution; Pyrrolic; Pyrrolic N; Single atom catalyst; Single-atoms; ]+ catalyst; Ligands | English | Article in press | 2025 | 10.1002/advs.202502230 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | MoS2 Channel-Enhanced High-Density Charge Trap Flash Memory and Machine Learning-Assisted Sensing Methodologies for Memory-Centric Computing Systems | Driven by the shift of artificial intelligence (AI) workloads to edge devices, there is a growing demand for nonvolatile memory solutions that offer high-density, low-power consumption, and reliability. However, well-established 3D NAND Flash using polycrystalline Si (Poly-Si) channel encounters bottlenecks in increasing bit density due to short-channel effects and cell-current limitations. This study investigates molybdenum disulfide (MoS2) as an alternative channel material for 3D NAND Flash cells. MoS2’s low bandgap facilitates hole-injection-based erase, achieving a broader memory window at moderate voltages. Furthermore, adopting a low-k (≈2.2) tunneling layer improves the gate-coupling ratio, reducing program/erase voltages and enhancing reliability, with endurance up to 104 cycles and retention of 105 s. Comprehensive analyses, including thickness-dependent MoS2 electrical measurements, temperature-dependent conduction studies, and Technology Computer-Aided Design (TCAD) simulations, elucidate the relationship between channel thickness and reliability metrics such as endurance and retention. Furthermore, deep reinforcement learning–driven Berkeley Short-channel IGFET Model (BSIM) parameter calibration enables seamless integration of the MoS2 model with a fabricated page-buffer chip, allowing circuit-level verification of sensing margins. This methodology can be applicable to new channel materials for next-generation memory devices. These results demonstrate that MoS2-based nonvolatile memory effectively meets high-density, low-power, and reliable storage needs, presenting a promising solution for AI-centric edge computing. © 2025 The Author(s). Advanced Science published by Wiley-VCH GmbH. | Kim, Ki Han; Park, Ju Han; Lee, Khang June; Seo, Ji-Won; Kim, Yeong Kwon; Choi, Junhwan; Seo, Min-Jae; Jang, Byung Chul | School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea, School of Semiconductor Convergence Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea; Department of Electronic Materials Engineering, The University of Suwon, Gyeonggi-do, Hwaseong, 18323, South Korea; School of Advanced Fusion Studies, University of Seoul, Seoulsiripdae-ro 163, Dongdaemun-gu, Seoul, 02504, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea; Department of Chemical Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Gyeonggi-do, Yongin, 16890, South Korea; School of Advanced Fusion Studies, University of Seoul, Seoulsiripdae-ro 163, Dongdaemun-gu, Seoul, 02504, South Korea; School of Electronic and Electrical Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea, School of Semiconductor Convergence Engineering, Kyungpook National University, 80 Daehakro, Bukgu, Daegu, 41566, South Korea | 58170931700; 59939211800; 57189446200; 59939414500; 58120005900; 57721052400; 57129900300; 9238827900 | bc.jang@knu.ac.kr; mjseo@uos.ac.kr; | Advanced Science | ADV SCI | N/A | 2198-3844 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2024 | 14.1 | 7.1 | N/A | 0 | 3D NAND Flash; machine learning; MoS<sub>2</sub>; nonvolatile memory | Deep learning; Deep reinforcement learning; Digital elevation model; Hardware-software codesign; High level synthesis; Intellectual property core; Layered semiconductors; NAND circuits; Nonvolatile storage; Physical addresses; Polycrystalline materials; Reinforcement learning; Static random access storage; 3d NAND flash; Channel materials; Charge trap flash memory; Density charges; Machine-learning; Memory learning; MoS 2; NAND Flash; Non-volatile memory; Nonvolatile memory; Computer aided logic design | English | Article in press | 2025 | 10.1002/advs.202501926 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | National dose survey and discussion on establishing diagnostic reference levels for dental imaging in Korea | Objectives This study aimed to establish updated diagnostic reference levels (DRLs) for dental imaging modalities in South Korea.Methods In cooperation with the Korea Disease Control and Prevention Agency, various types of institutions (dental clinics, dental hospitals, and dental university hospitals) were selected to investigate the status of diagnostic radiation equipment use. Subsequently, over 300 units were randomly selected for each imaging device type (intraoral, panoramic, and cone-beam CT [CBCT]) as measurement samples. DRLs were defined as the 75th percentile of the dose area product distribution. The differences in dose were analysed based on the type of institution, age of use, country of manufacture, and presence of a multifunction device.Results The national DRLs for dental imaging established in this survey were as follows: intraoral imaging at 48 mGycm2 for adults and 31 mGycm2 for children; panoramic imaging at 354 mGycm2 for adults and 224 mGycm2 for children; and CBCT at 1856 mGycm2 for adults and 1350 mGycm2 for children. Private dental clinics and hospitals recorded approximately twice the dose levels of university dental hospitals. CBCT devices in dental hospitals and those that have been in used for 5-10 years showed significantly high radiation doses.Conclusions The DRLs established through this study were found to be significantly increased, especially in adult and paediatric panoramic radiographs and paediatric CBCT images, compared with those in previous surveys; moreover, they were higher than those in other countries. The findings of this study can serve as a basis for national dose reduction efforts. | Kim, Jo-Eun; Yeom, Han-Gyeol; Hwang, Jae Joon; Choi, Yoon Joo; Han, Jin-Woo; An, Seo-Young; Kim, Gyu-Tae; Lee, Jae-Seo; Kim, Jin-Soo; Kim, Kyung-A; Han, Won-Jeong; Kang, Juhee; Heo, Min-Suk | Pusan Natl Univ, Dent Res Inst, Sch Dent, Daehak Ro11, Seoul, South Korea; Seoul Natl Univ, Dent Res Inst, Daehak Ro11, Seoul, South Korea; Wonkwang Univ, Wonkwang Dent Res Inst, Coll Dent, Iksan, South Korea; Wonkwang Univ, Wonkwang Dent Res Inst, Coll Dent, Iksan, South Korea; Pusan Natl Univ, Dent Res Inst, Sch Dent, Yangsan 50612, South Korea; Wonkwang Univ, Coll Dent, Dept Oral & Maxillofacial Radiol, Seoul, South Korea; Gangneung Wonju Natl Univ, Coll Dent, Dept Oral & Maxillofacial Radiol, Gangneung 25457, South Korea; Kyungpook Natl Univ, Sch Dent, Dept Oral & Maxillofacial Radiol, Daegu 702701, South Korea; Kyung Hee Univ, Coll Dent, Dept Oral & Maxillofacial Radiol, Seoul, South Korea; Chonnam Natl Univ, Dent Sci Res Inst, Sch Dent, Dept Oral & Maxillofacial Radiol, Gwangju, South Korea; Chosun Univ, Coll Dent, Dept Oral & Maxillofacial Radiol, Gwangju, South Korea; Chonbuk Natl Univ, Sch Dent, Dept Oral & Maxillofacial Radiol, Jeonju, South Korea; Dankook Univ, Dept Oral & Maxillofacial Radiol, Coll Dent, Cheonan 31116, South Korea; Seoul Natl Univ Dent Hosp, Dept Oral & Maxillofacial Radiol, Daehak Ro 101, Seoul 03080, South Korea | Kim, Gyu-Tae/AAI-1317-2020 | juhee104@snu.ac.kr; hmslsh@snu.ac.kr; | DENTOMAXILLOFACIAL RADIOLOGY | DENTOMAXILLOFAC RAD | 0250-832X | 1476-542X | 54 | 5 | SCIE | DENTISTRY, ORAL SURGERY & MEDICINE;RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING | 2024 | 4.1 | 7.1 | 0 | diagnostic reference level; dental imaging; dose area product; national survey | English | 2025 | 2025-07 | 10.1093/dmfr/twaf014 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | ○ | Article | Predicting energy consumption of building clusters at the design stage using machine learning models | The environmental impact of high energy consumption in buildings during the COVID-19 pandemic has led to the adopting of data-driven approaches for enhanced decision-making and energy savings. However, forecasting energy use during the early design phase remains limited. This study investigates how building clusters affect model performance at the design stage using five machine-learning techniques with a dataset of 10,264 buildings. Model performances were evaluated using their accuracy, RMSE, MAE, MSE, and R2 metrics. Results showed that DNN achieved the best accuracy score of 98%, followed by MLPNN and SVMW with accuracy scores of 95% and 92%, respectively. The study proposes a general framework to predict average annual energy use across different building types at the early design stage, supporting informed and sustainable architectural decisions. | Owolabi, Abdulhameed Babatunde; Yahaya, Abdullahi; Amir, Mohammad; Yakub, Abdulfatai Olatunji; Kavgic, Miroslava; Suh, Dongjun | Kyungpook Natl Univ, Reg Leading Res Ctr Smart Energy Syst, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Energy Convergence & Climate Change, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Convergence & Fus Syst Engn, Sangju 37224, South Korea; Drexel Univ, Dept Civil Architectural & Environm Engn, Philadelphia, PA 19104 USA; Univ Liverpool, Sch Engn, Liverpool L69 7ZX, Merseyside, England; Univ Ottawa, Civil Engn, 161 Louis Pasteur, Ottawa, ON K1N 6N5, Canada | 57192210107; 58419707700; 59905234200; 57894905100; 23995316100; 36613529600 | owolabiabdulhameed@gmail.com; yahaya@knu.ac.kr; mohammad.amir@liverpool.ac.uk; dongjuhsuh@knu.ac.kr; mkavgic@uottawa.ca; dongjunsuh@knu.ac.kr; | AIN SHAMS ENGINEERING JOURNAL | AIN SHAMS ENG J | 2090-4479 | 2090-4495 | 16 | 8 | SCIE | ENGINEERING, MULTIDISCIPLINARY | 2024 | 5.9 | 7.1 | 0 | 2025-06-11 | 0 | 0 | Building clusters; Energy conservation; Energy consumption; Machine learning; Building design stage; COVID-19 | FEATURE-SELECTION | Building clusters; Building design stage; COVID-19; Energy conservation; Energy consumption; Machine learning | Architectural design; Cluster analysis; Energy saving; Building cluster; Building design; Building design stage; Design stage; Energy; Energy use; Energy-consumption; Machine learning models; Machine-learning; Modeling performance; Energy efficiency | English | 2025 | 2025-08 | 10.1016/j.asej.2025.103481 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Pronounced Role of Lithium-Controlling Polymer in Water-Processable/Halogen-Free All-Solid-State Electrolytes for Lithium Supercapacitors | Polymeric solid-state electrolytes (SSEs) with environmentally friendly processes deliver safer and cleaner energy storage devices without fires and leakages than conventional liquid electrolytes. Here, water-processable halogen-free polymeric SSEs are demonstrated with high ion conductivity (approximate to 6 mS cm-1), prepared from aqueous solutions consisting of branched poly(ethylene imine) (bPEI), lithium hydroxide (LiOH), and poly(4-styrene sulfonic acid) (PSSA). The bPEI:LiOH:PSSA (PLP) SSEs with various PSSA molar ratios are applied to asymmetric supercapacitors with graphite-based anodes and indium tin oxide (ITO) counter electrodes. The PSSA molar ratio strongly affected the ion conductivity of PLP SSEs, leading to a maximum at PSSA = 40 mol%, owing to the role of PSSA in controlling the size of LiOH domains for better Li+ transport pathways. The enhanced ion conductivity enabled PLP-supercapacitors to build a high potential of 2.24 V at PSSA = 40 mol%, compared to 1.64 V at 0 mol%, upon galvanostatic charge/discharge at a current density of 0.2 mA g-1. The endurance test shows that the supercapacitors with the PLP SSEs (PSSA = 40 mol%) can function stably with high capacitance retention (96.2%) for more than 5000 cycles, and approximate to 80% capacitance retention at 80 degrees C, supporting their practical use in high-safety supercapacitors and batteries. | Murukadas, Deepu; Kim, Hwajeong; Kim, Youngkyoo | Kyungpook Natl Univ, Sch Chem Engn & Appl Chem, Dept Chem Engn, Organ Nanoelect Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Sch Chem Engn & Appl Chem, Dept Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Energy Convergence & Climate Change, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Global Climate Change & Energy, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, Prior Res Ctr, Daegu 41566, South Korea | 58787856000; 15520531700; 10340424400 | ykimm@knu.ac.kr; | ADVANCED SCIENCE | ADV SCI | 2198-3844 | 12 | 23 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2024 | 14.1 | 7.1 | 0 | 2025-06-11 | 0 | 0 | all-solid-state electrolytes; bPEI; lithium supercapacitors; PSSA; water-processable | CATHODE MATERIAL; METHANOL; OXIDE; NANOCOMPOSITE; PERFORMANCE; ELECTRODES | all-solid-state electrolytes; bPEI; lithium supercapacitors; PSSA; water-processable | All-solid state; All-solid-state electrolyte; Branched poly(ethylene imine); Lithium supercapacitor; Poly(4-styrene sulphonic acid); Poly(ethyleneimine); Processable; Solid-state electrolyte; Sulphonic acids; Water-processable; Lithium-ion batteries | English | 2025 | 2025-06 | 10.1002/advs.202417745 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Unseen Threats: The Long-term Impact of PET-Microplastics on Development of Male Reproductive Over a Lifetime | The physical abrasion of plastics from simple everyday entered the food chain, with associated risks recently emphasized. Although many studies have reported the adverse effects of microplastics (MPs) on human, the reproductive implications of continuous exposure to physically abraded polyethylene terephthalate (PET)-MPs remain unexplored. Ingestion of physically abraded PET-MPs (size range: 50-100 mu m) in mice from 5 to 34 weeks of age at an annual intake relevant dose of MPs (5 mg week-1) significantly impaired male reproductive function. Reductions in seminiferous tubule diameter and epithelial height are observed (p < 0.0001), with 32.2% decrease in Leydig cells and 24.3% reduction in testosterone levels (p < 0.05). The epididymis shows marked deterioration in all regions, with total sperm concentration significantly reduce from 17.0 x 10(6)to 5.3 x 10(6) (p < 0.01) and decrease motility. Transcriptome analysis demonstrates downregulation of genes related with gonadotropin-releasing hormone secretion, testosterone biosynthesis, and Meiosin gene, which is for crucial spermatogenesis. Continuous ingestion of physically abraded PET-MPs from plastic bottles adversely affected testicular and epididymal functions, leading to hormonal imbalances and abnormal sperm production. These findings raise concerns about the impact of commonly used plastics on male reproductive development, highlighting potential risks for future generations. | Jeong, Seungjin; Lee, Gyudae; Park, Surye; Son, Myeongjoo; Lee, Seungjun; Ryu, Bomi | Pukyong Natl Univ, Dept Food Sci & Nutr, Busan 48513, South Korea; Pukyong Natl Univ, Dept Smart Green Technol Engn, Busan 48513, South Korea; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea; Kangwon Natl Univ, Sch Med, Dept Anat & Cell Biol, Chunchon 24341, South Korea | ; Lee, Seungjun/S-9826-2019; Son, Myeongjoo/NFT-5654-2025; Ryu, Bomi/H-5795-2019 | 57221807404; 57222101785; 59511565600; 56626709500; 56437333700; 35307815200 | paul5280@pknu.ac.kr; bmryu@pknu.ac.kr; | ADVANCED SCIENCE | ADV SCI | 2198-3844 | 12 | 9 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2024 | 14.1 | 7.1 | 0 | 2025-05-07 | 1 | 1 | epididymis; polyethylene terephthalate; spermatogenesis; testis; transcriptome | MOUSE SPERM; SPERMATOGENESIS; NANOPARTICLES; ENVIRONMENT; APOPTOSIS; PLASTICS; HEALTH; CAPUT | epididymis; polyethylene terephthalate; spermatogenesis; testis; transcriptome | Animals; Male; Mice; Microplastics; Polyethylene Terephthalates; Reproduction; Testis; Testosterone; Mammals; Microplastic; Polyethylene terephthalates; microplastic; polyethylene terephthalate; testosterone; % reductions; Epididymis; Long-term impacts; Microplastics; Physical abrasion; Spermatogenesis; Terephthalate; Testis; Testosterone; Transcriptomes; animal; drug effect; male; metabolism; mouse; reproduction; testis; Plastic bottles | English | 2025 | 2025-03 | 10.1002/advs.202407585 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Wearable Multifunctional Health Monitoring Systems Enabled by Ultrafast Flash-Induced 3D Porous Graphene | A wearable health monitoring system is a promising device for opening the era of the fourth industrial revolution due to increasing interest in health among modern people. Wearable health monitoring systems were demonstrated by several researchers, but still have critical issues of low performance, inefficient and complex fabrication processes. Here, we present the world's first wearable multifunctional health monitoring system based on flash-induced porous graphene (FPG). FPG was efficiently synthesized via flash lamp, resulting in a large area in four milliseconds. Moreover, to demonstrate the sensing performance of FPG, a wearable multifunctional health monitoring system was fabricated onto a single substrate. A carbon nanotube-polydimethylsiloxane (CNT-PDMS) nanocomposite electrode was successfully formed on the uneven FPG surface using screen printing. The performance of the FPG-based wearable multifunctional health monitoring system was enhanced by the large surface area of the 3D-porous structure FPG. Finally, the FPG-based wearable multifunctional health monitoring system effectively detected motion, skin temperature, and sweat with a strain GF of 2564.38, a linear thermal response of 0.98 Omega degrees C-1 under the skin temperature range, and a low ion detection limit of 10 mu m. | Choi, Se Jin; Kim, Chan Hyeok; Kim, Jeong Hyeon; Kim, Kang Hyeon; Park, Sang Yoon; Ko, Yu Jin; Kang, Hosung; Kim, Young Bin; Woo, Yu Mi; Seok, Jae Young; Kang, Bongchul; Jeong, Chang Kyu; Park, Kwi-Il; Hwang, Geon-Tae; Park, Jung Hwan; Lee, Han Eol | Jeonbuk Natl Univ, Acad Convergence Res, Dept JBNU KIST Ind, 567 Baekje Daero, Jeonju 54896, Jeollabuk, South Korea; Jeonbuk Natl Univ, Div Adv Mat Engn, 567 Baekje Daero, Jeonju 54896, Jeollabuk, South Korea; Kumoh Natl Inst Technol, Sch Mech Syst Engn, 61 Daehak Ro, Gumi 39177, Gyeongbuk, South Korea; Jeonbuk Natl Univ, Div Elect & Informat Engn, 567 Baekje Daero, Jeonju 54896, Jeollabuk, South Korea; LG Energy Solut, Inst Battery R&D, 188 Moonji Ro, Daejeon 34122, South Korea; Cornell Univ, Dept Biol & Environm Engn, 111 Wing Dr, Ithaca, NY 14853 USA; Korea Adv Inst Sci & Technol KAIST, Dept Mech Engn, 291 Daehak Ro, Yuseong 34141, Daejeon, South Korea; Kumoh Natl Inst Technol, Dept Mech Engn, Dept Aeronaut Mech & Elect Convergence Engn, 61 Daehak Ro, Gumi 39177, Gyeongbuk, South Korea; Seoul Natl Univ Sci & Technol, Dept Mech Syst Design Engn, 232 Gongneung Ro, Seoul 01811, South Korea; Kookmin Univ, Sch Mech Engn, 77 Jeongneung Ro, Seoul 02707, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Met Engn, 80 Daehak Ro, Daegu 41566, South Korea; Pukyong Natl Univ, Dept Mat Sci & Engn, 45 Yongso Ro, Busan 48513, South Korea | Lee, Han/AAS-6899-2020; Jeong, Chang Kyu/ADT-8127-2022; Choi, Sang Hyun/MXL-4605-2025; Seok, Jae Young/AFL-6700-2022; Park, Kwiil/LKN-9445-2024 | 59698689400; 59697856700; 57756873700; 59187704100; 59879620900; 59187498300; 59698689500; 59289875000; 58407529000; 57190034774; 36996506400; 55961876600; 59812531900; 36704574900; 55716954000; 56415504500 | parkjh1151@kumoh.ac.kr; haneol@jbnu.ac.kr; | ENERGY & ENVIRONMENTAL MATERIALS | ENERGY ENVIRON MATER | 2575-0356 | 8 | 4 | SCIE | MATERIALS SCIENCE, MULTIDISCIPLINARY | 2024 | 14.1 | 7.1 | 0 | 2025-05-07 | 0 | 0 | flash-induced porous graphene; nanocomposite-based electrode; real-time biosignal monitoring; screen printing; wearable multifunctional sensor | CARBONIZATION | flash-induced porous graphene; nanocomposite-based electrode; real-time biosignal monitoring; screen printing; wearable multifunctional sensor | Electronic health record; mHealth; Screen printing; Structural health monitoring; Wearable sensors; Biosignals; Flash-induced porous graphene; Health monitoring system; Multifunctional sensors; Multifunctionals; Nanocomposite-based electrode; Porous graphene; Real- time; Real-time biosignal monitoring; Wearable multifunctional sensor; Polydimethylsiloxane | English | 2025 | 2025-07 | 10.1002/eem2.70005 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | 3D nonstationary lithofacies characterization via manifold embedding and transition probabilities for hydrogeological applications | Subsurface characterization remains a pivotal challenge in geology, largely due to the inherent complexity and nonstationarity of geological processes. Conventional geostatistical methods-often relying on two-point statistics and stationarity assumptions-struggle to accurately capture the spatial heterogeneity and transitional dynamics of subsurface materials. In hydrogeology, such simplifications can lead to significant misrepresentations of groundwater flow and solute transport pathways. This study introduces a novel threedimensional lithofacies characterization approach that integrates manifold embedding with a transition probability-based spatial estimation technique. By incorporating structural and lithological information such as pole-to-plane orientations and lithological proportions, the proposed method effectively addresses nonstationarity and overcomes the limitations of traditional geostatistical models. Through a series of hypothetical scenarios and simulations, we demonstrate the method's capability to reconstruct complex geological formations and reliably estimate subsurface characteristics without requiring predefined training images, making it especially suitable for data-scarce site investigations. These results highlight the importance of accounting for nonstationarity in geological modeling and emphasize the method's potential impact on hydrogeological applications. Accurate lithological distribution estimation, facilitated by our approach, is essential for improving groundwater flow and solute transport simulations and thus guiding effective water resource management. This study thus enriches the geostatistical toolkit, paving the way for empirical validation in real-world hydrogeological settings and guiding its adoption in early-stage site investigations where data scarcity and uncertainties remain critical challenges. | Park, Eungyu | Kyungpook Natl Univ, Dept Geol, 80 Daehak Ro, Daegu 41566, South Korea | 23995577700 | egpark@knu.ac.kr; | JOURNAL OF HYDROLOGY | J HYDROL | 0022-1694 | 1879-2707 | 660 | SCIE | ENGINEERING, CIVIL;GEOSCIENCES, MULTIDISCIPLINARY;WATER RESOURCES | 2024 | 6.3 | 7.2 | N/A | 1 | 1 | Subsurface characterization; Nonstationarity; Manifold embedding; Transition probability; Lithofacies; Hydrogeological modeling | MARKOV-CHAIN MODEL; FACIES MODELS | Hydrogeological modeling; Lithofacies; Manifold embedding; Nonstationarity; Subsurface characterization; Transition probability | Groundwater resources; Hydrogeology; Lithology; Subsalt strata; Embeddings; Hydrogeological; Hydrogeological models; Lithofacies; Manifold embedding; Non-stationarities; Nonstationary; Site investigations; Subsurface characterizations; Transition probabilities; groundwater flow; heterogeneity; hydrogeology; lithofacies; probability; solute transport; subsurface flow; Water management | English | 2025 | 2025-10 | 10.1016/j.jhydrol.2025.133453 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | A Wide-Input-Range Current-Fed Resonant DC-DC Converter With Triple-Mode Operation for Fuel-Cell Vehicles | Conventional current-fed converters have limitations to accommodate a wide voltage range of fuel-cell stacks. To solve this issue, this study proposes a current-fed resonant converter with a wide input range designed for fuel-cell vehicles. The proposed converter adopts a current-fed bridge and an asymmetric active voltage doubler on the primary and secondary sides of the transformer, achieving high step-up capability while minimizing input current ripple. Moreover, it reduces hard-switching turn-on losses compared with conventional symmetric modulations owing to extended asymmetric modulation. Furthermore, the proposed converter features triple-mode operation, enabling various resonant operations to obtain a wide input voltage range and a soft-switching mechanism. As a result, the proposed converter attains high voltage gain, low input current ripple, and high efficiency over a broad input voltage range. Subsequently, a 400-W/380-V prototype is introduced to experimentally affirm the viability of the proposed converter across a specified input voltage range spanning from 40 to 70 V. | Kim, Sangoh; Kim, Jong-Woo; Joe, Hangil; Han, Byeongcheol | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Konkuk Univ, Dept Elect & Elect Engn, Seoul 05029, South Korea; Kyungpook Natl Univ, Dept Smart Mobil Engn, Daegu 41566, South Korea | Joe, Hangil/LOR-9635-2024 | 57445691100; 50061611900; 55848385500; 57188622752 | aks4539@knu.ac.kr; jongwookim@konkuk.ac.kr; hgjoe@knu.ac.kr; hbychol@knu.ac.kr; | IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION | IEEE T TRANSP ELECTR | 2332-7782 | 11 | 1 | SCIE | ENGINEERING, ELECTRICAL & ELECTRONIC;TRANSPORTATION SCIENCE & TECHNOLOGY | 2024 | 8.3 | 7.2 | 0 | 2025-05-07 | 0 | 1 | Switches; Voltage; Transformers; High-voltage techniques; Inductance; Fuel cells; DC-DC power converters; Current fed; fuel-cell vehicles; resonant tank; soft switching; wide input voltage range | VOLTAGE-GAIN RANGE; SINGLE-SWITCH; SYSTEM | Current fed; fuel-cell vehicles; resonant tank; soft switching; wide input voltage range | DC transformers; DC-DC converters; Current fed; DC/DC power converters; Fuel cell vehicles; High voltage techniques; Mode operation; Resonant tanks; Soft-switching; Transformer; Triple modes; Wide input voltage ranges; Resonant converters | English | 2025 | 2025-02 | 10.1109/tte.2024.3447160 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Anisotropic Ion-Guiding Hydrogel Electrolyte with High-Water Affinity for Zn Ion Battery | Aqueous zinc-ion batteries (AZIBs) are a promising alternative to lithium-ion batteries, boasting superior safety, eco-friendliness, and cost-effectiveness. Despite these advantages, performance issues such as irregular Zn deposition and cathode material dissolution remain challenging. This study introduces an intrinsically anisotropic ion-guiding hydrogel electrolyte (APHE) fabricated via a double-stabilization anisotropic freezing strategy. The synergistic effect of anisotropic structure and high water affinity of APHE effectively suppress water-induced parasitic reactions. In brief, the anisotropic structure promotes rapid Zn2+ ion diffusion, leading to the uniform Zn2+ ion flux. Additionally, abundant hydroxyl groups in APHE facilitate Zn2+ ion dissociation and adjust the solvation structure, setting it apart from an isotropic matrix. Furthermore, the improvement of ion diffusion tortuosity enhances the electrode/electrolyte kinetics, thereby improving the rate-capability and reversibility of Zn2+ ion (de)-intercalation. Thus, APHE demonstrates a thin and dense Zn deposition layer of 31.7 µm, which is less than half the thickness of IPHE (67.5 µm) after 500 cycles. This research addresses fundamental challenges in the performance of AZIBs and provides valuable insights into the design of advanced electrolytes for future energy storage systems. © 2025 The Author(s). Small published by Wiley-VCH GmbH. | Han, Juyeon; Jung, Sungwon; Heo, Sung-eun; Choi, Bumgyu; Ryu, Seokgyu; Park, Sohyeon; Hong, Jinkee; Yoo, Jeeyoung | School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea; Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, South Korea; Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, South Korea; Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, South Korea; Department of Chemical & Biomolecular Engineering, Clarkson University, Potsdam, NY, United States; Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, United States; Department of Chemical and Biomolecular Engineering, College of Engineering, Yonsei University, Seoul, 03722, South Korea; School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57222146622; 55556647600; 58244985800; 57279141200; 57192435552; 57193811300; 14053752700; 56046607500 | jyoo@knu.ac.kr; jinkee.hong@yonsei.ac.kr; | Small | SMALL | 1613-6810 | 1613-6829 | 21 | 23 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 12.1 | 7.2 | 0 | 2025-05-07 | 1 | anisotropic structure; aqueous zinc-ion battery; electrolyte engineering; hydrogel electrolyte; water affinity | electrolyte; hydrogel; hydroxyl group; ion; lithium ion; zinc ion; Anisotropic structure; Aqueous zinc-ion battery; Electrolyte engineering; High water; Hydrogel electrolytes; Ion batteries; Ion guiding; Water affinity; Zinc ions; Zn 2+; article; cathode electrode; controlled study; cost effectiveness analysis; diffusion; dissociation; dissolution; electrode; electrolyte transport; freezing; ion current; solvation; thickness; water; Lithium-ion batteries | English | Final | 2025 | 10.1002/smll.202500799 | 바로가기 | 바로가기 | 바로가기 | |||||||
| ○ | Article | Covalent Organic Nanosheets with a Tunable Electronic Structure to Achieve Unprecedented Stability and High-Performance in Sodium-Ion Batteries | This study develops a new type of fluorinated covalent organic nanosheets (CONs) as anode materials for sodium-ion batteries by incorporating an electron-withdrawing benzothiadiazole (BT) unit and F atom into the framework. These modifications lead to a reduced bandgap and electron density, generating strong permanent dipoles that increased Na+ accessible sites within the self-assembled solid-state structure. To elucidate the effect of these electronic changes, the Na+ storage performance of fluorinated D/A-CON-10-F is compared to that of nonfluorinated D/A-CON-10. The reduced electron density in D/A-CON-10-F weakens its interaction with Na+, yet enhances ion and charge carrier conductivities, leading to improved electrochemical performance. Notably, D/A-CON-10-F exhibits a reversible discharge capacity of ≈637 mA h g−1 at 100 mA g−1, maintaining structural stability over 5000 cycles with excellent rate capability. These results demonstrate that dipole engineering in CONs effectively enhances charge transport and long-term stability, offering a promising strategy for next-generation sodium-ion battery anodes. © 2025 The Author(s). Small published by Wiley-VCH GmbH. | Lee, Minseop; Lee, Nakyeong; Kwon, Gumin; Oh, Jae-Min; Park, Jin Kuen; Paek, Seung-Min | Department of Chemistry, Kyungpook National University, Daegu, 41566, South Korea; Department of Chemistry, Hankuk University of Foreign Studies, Gyenggi-do, Yongin, 17035, South Korea; Department of Chemistry, Hankuk University of Foreign Studies, Gyenggi-do, Yongin, 17035, South Korea; Department of Energy and Materials Engineering, Dongguk University, Seoul, 04620, South Korea; Department of Chemistry, Hankuk University of Foreign Studies, Gyenggi-do, Yongin, 17035, South Korea; Department of Chemistry, Kyungpook National University, Daegu, 41566, South Korea | 57201550392; 59091010500; 59767848300; 7402155053; 55085701500; 7102686289 | smpaek@knu.ac.kr; jinkpark@hufs.ac.kr; jaemin.oh@dongguk.edu; | Small | SMALL | 1613-6810 | 1613-6829 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 12.1 | 7.2 | N/A | 2 | bandgap engineering; covalent organic nanosheets; electron density control; push–pull electronic structure; sodium ion batteries | Electron density measurement; Electronic structure; Nanosheets; Band gap engineering; Covalent organic nanosheet; Electron density control; Electronic.structure; Organics; Performance; Push pull; Push–pull electronic structure; Sodium ion batteries; Tunables; Sodium-ion batteries | English | Article in press | 2025 | 10.1002/smll.202502368 | 바로가기 | 바로가기 | 바로가기 | ||||||||||
| ○ | Article | Defective Antifluorite MnO2-Layered RuO2 for Direct Seawater Electrolysis at Circum-Neutral pH | The direct electrolysis of unbuffered seawater at pH 8.2 remains challenging. This study synthesizes RuO2 electrodes with electrodeposited polymorphs of MnO2 (δ-, ε-, γ-, and defective antifluorite [DA]-MnO2) as a semipermeable overlayer that selectively allows water transport while blocking chloride diffusion. Whereas the oxygen evolution reaction (OER) and chlorine evolution reaction occur simultaneously with the bare RuO2 electrode, only the former is observed with the MnO2-coated RuO2 electrodes. Compared to the crystalline δ-, ε-, and γ-MnO2 polymorphs, the DA-MnO2/RuO2 electrode drives the OER at a Faradaic efficiency (FE) of ≈100% for over 100 h in unbuffered seawater, with an OER-FE of ≈98.7% and 90.0% in 1 M and 5 M NaCl, respectively. Based on theoretical calculations, the excellent electrocatalytic behavior of DA-MnO2 is attributed to the steric structure of the staggered, narrower Mn-O polyhedron channels, inhibiting the diffusion of Cl− through the MnO2 overlayer. © 2025 The Author(s). Small published by Wiley-VCH GmbH. | Liang, Nan-Nan; Kim, Dong Jin; Qiu, Zhiyu; Kweon, Youngha; Kim, Tae Woo; Han, Dong Suk; Kim, Minho; Park, Hyunwoong | School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea; School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea; School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea; Department of Applied Chemistry, Kyung Hee University, Gyeonggi, Yongin, 17104, South Korea; Hydrogen Research Department, Korea Institute of Energy Research, Daejeon, 34129, South Korea; Center for Advanced Materials, Qatar University, Doha, 2713, Qatar; Department of Applied Chemistry, Kyung Hee University, Gyeonggi, Yongin, 17104, South Korea; School of Energy Engineering, Kyungpook National University, Daegu, 41566, South Korea | 57800564000; 57201652080; 59660384200; 59554745000; 58101463000; 36139213900; 57020081700; 7601565583 | hwp@knu.ac.kr; minho.kim@khu.ac.kr; | Small | SMALL | 1613-6810 | 1613-6829 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 12.1 | 7.2 | 0 | 2025-06-11 | 0 | electrocatalyst; manganese oxide; oxygen evolution reaction; seawater; selectivity | Coated wire electrodes; Electrolysis; Antifluorites; Evolution reactions; Faradaic efficiencies; MnO 2; Neutral pH; Overlayers; Oxygen evolution; RuO 2; Seawater electrolysis; Selectivity; Seawater | English | Article in press | 2025 | 10.1002/smll.202504249 | 바로가기 | 바로가기 | 바로가기 | |||||||||
| ○ | ○ | Article | Effects of Unit Cell Size on Thermal Conductivity in Two Different Polymorphs of Niobium Diselenide | 2D materials possess weak inter-layer van der Waals bonding, allowing them to exist as different polymorphs depending on the stacking sequence of the layers. Herein, the thermal conductivities of the 2H-NbSe2 and 2H-3R-NbSe2 polymorphs by conducting experimental measurements and theoretical analysis are comparatively studied. Owing to its 1.8 times larger unit cell, 2H-3R-NbSe2 has a considerably greater number of optical phonon branches than does 2H-NbSe2, suggesting that 2H-3R-NbSe2 absorbs thermal energy rather than transporting it. In addition, scattering is more likely to occur in 2H-3R-NbSe2 because a far greater number of states satisfy the selection rule. As a result of these, the 2H-3R-NbSe2 has considerably lower thermal conductivity than that of the 2H-NbSe2. The results highlight how the size of the unit cell affects the thermal conductivities of polymorphs. | Park, Sungjin; Kim, Kyomin; Kim, Kwangrae; Lee, Wooyoung; Soon, Aloysius; Roh, Jong-wook; Kim, Woochul | Yonsei Univ, Sch Mech Engn, Seoul 03722, South Korea; Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA; Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA; Yonsei Univ, Dept Mat Sci & Engn, Seoul 03722, South Korea; Kyungpook Natl Univ, Sch Nano & Mat Sci & Engn, Gyeongsangbuk Do 38869, South Korea | Soon, Aloysius/E-3478-2010 | 59259156400; 57195409081; 57475677300; 55498383000; 59722213700; 25638796100; 59722206100 | aloysius.soon@yonsei.ac.kr; jw.roh@knu.ac.kr; woochul@yonsei.ac.kr; | SMALL | SMALL | 1613-6810 | 1613-6829 | 21 | 11 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 12.1 | 7.2 | 0 | 2025-05-07 | 0 | 0 | niobium diselenide; polymorph; thermal conductivity; unit cell size | TRANSITION-METAL DICHALCOGENIDES; TOTAL-ENERGY CALCULATIONS; PHONON TRANSPORT; BORON-NITRIDE; GRAPHENE; DISPERSION; GRAPHITE; DESIGN | niobium diselenide; polymorph; thermal conductivity; unit cell size | Cells; Thermal conductivity of solids; niobium; Diselenides; Energy; Inter-layers; Large unit cell; Optical phonons; Phonon branches; Stacking sequence; Thermal; Unit cell size; Van der Waal; article; cell size; controlled study; phonon; thermal conductivity; Van der Waals forces | English | 2025 | 2025-03 | 10.1002/smll.202408948 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | High-Durability Anti-Fog Coating Based on Carboxyl-Promoted Anti-Yellowing Cross-Linkable Hybrid Adhesive Material of Polyvinyl Alcohol and Polyimide | A novel polyimide (PI) with a carboxyl side group is synthesized. Cross-linked hybrid films are prepared by adding a small amount of PI to polyvinyl alcohol (PVA), causing esterification and etherification reactions during the convection drying process. The physical properties of the hybrid films vary significantly depending on the PI content and drying temperature. The higher the PI content and the drying temperature, the higher the cross-linking density. In particular, the hybrid film (PVA/PI4170 film) containing 4 wt.% PI relative to PVA can most effectively suppress the thermal decomposition of PVA during the high-temperature drying process at 170 degrees C, preventing yellowing. When PI exceeds 6 wt.% relative to PVA, phase separation occurs, and the hybrid film becomes opaque. PVA/PI4170 film demonstrates excellent water resistance, tensile strength, surface friction resistance, impact resistance, and glass adhesion properties due to its appropriately cross-linked structure. No fogging is observed when the coated surface is exposed to water vapor. The present PVA/PI hybrid film is expected to be used semi-permanently as an anti-fog coating material, even in high-temperature and high-humidity environments. This research will serve as a technical guide for the development of advanced functional films based on PVA and PI in the future. | Lee, Jineun; Kim, Yoona; Kwak, Giseop | Kyungpook Natl Univ, Dept Polymer Sci & Engn, Polymer Nanomat Lab, 1370 Sankyuk Dong,Buk Ku, Daegu 702701, South Korea | , Giseop/M-8370-2018 | 57226333374; 59351757600; 17137322300 | gkwak@knu.ac.kr; | SMALL | SMALL | 1613-6810 | 1613-6829 | 21 | 25 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 12.1 | 7.2 | N/A | 0 | 0 | anti-fogging; coating; cross-linking; polyimide; polyvinyl alcohol | POLY(VINYL ALCOHOL); THERMAL-DEGRADATION; VINYL ALCOHOL; NANOCOMPOSITES; TECHNOLOGY; BEHAVIOR; LINKING; SURFACE; GLASS; PVB | anti-fogging; coating; cross-linking; polyimide; polyvinyl alcohol | Dry cleaning; Linings; Protective coatings; Adhesive materials; Anti-fogging; Cross linking; Cross-linkable; Drying process; Drying temperature; High durability; Hybrid adhesives; Hybrid film; Polyvinyls; Crosslinking | English | 2025 | 2025-06 | 10.1002/smll.202503079 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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