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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 | Benefits of organic amendments on soil C stock may be offset by increased methane flux in rice paddy field | Periodic application of organic manure (OM) has been suggested to increase soil carbon stock and mitigate global warming. However, in irrigated rice fields, OM amendment greatly increases methane (CH4) emissions, which in turn may offset the effect of increased soil carbon storage on mitigating global warming. Research on the effects of OM application on net global warming potential that integrates greenhouse gas (GHG) fluxes and soil carbon stocks change in rice cultivating systems has been elusive. To determine the impact of organic amendments on global warming in a rice paddy, chemical (NPK) and organic fertilization were installed, and straw removal and recycling plots were added in two fertilization treatments. Annual CH4 and nitrous oxide (N2O) fluxes were evaluated using the static closed chamber method. Soil C stock changes were estimated using the net ecosystem C budget (NECB) which indicates the difference between C input and output. In chemical fertilization, straw removal decreased soil C stock by an average of 751 kg C ha- 1 year- 1, but straw recycling significantly increased soil C stock by an average of 464 kg C ha- 1 year- 1. In organic fertilization, soil C stock was strongly affected by cover crop productivity. Under favorable climatic conditions for cover cropping, soil C stocks were greatly increased by green manuring and even more so by straw recycling. However, under an unfavorable climate, soil C stock was not statistically increased, regardless of straw addition. Straw recycling increased annual CH4 flux by approximately 220-310 and 130-190% over straw removal in chemical (7.9 Mg CO2-eq. ha- 1 year- 1) and organic fertilization (40 Mg CO2-eq. ha- 1 year- 1), respectively, but negligibly affected N2O flux. Irrespective of fertilization background, net GWP was mainly decided by CH4 flux with 54-98% coverage, and then followed by soil C stock change and N2O flux. As a result, straw addition increased net GWP by around 110-140 and 120-150% over straw removal in chemical and organic fertilization, respectively. Rice yield was stable between years in the chemical fertilization but showed a big difference in organic fertilization, due to the difference in cover crop biomass productivity. However, rice productivity was not significantly affected by straw recycling. Organic amendment and straw applications increased greenhouse gas intensity (GHGI) by an average of 131% and 269% in a rice paddy, respectively, due to a high increase of CH4 flux but a low increase of soil C stock. In conclusion, more effective OM management which can decrease CH4 emissions and increase SOC stock is required in rice paddies. | Song, Hyeon Ji; Park, So Yeong; Chae, Ho Gyeong; Kim, Pil Joo; Lee, Jeong Gu | Gyeongsang Natl Univ, BK 21 Program, Div Appl Life Sci, Jinju 52828, South Korea; Gyeongsang Natl Univ, Inst Agr & Life Sci, Jinju 52828, South Korea; Kyungpook Natl Univ, Dept Appl Biosci, Daegu 41566, South Korea | ; Lee, Jeonggu/LDG-2186-2024 | 57212236040; 58605945600; 57223318019; 57200208254; 57204356196 | pjkim@gnu.ac.kr;jeonggu@knu.ac.kr; | AGRICULTURE ECOSYSTEMS & ENVIRONMENT | AGR ECOSYST ENVIRON | 0167-8809 | 1873-2305 | 359 | SCIE | AGRICULTURE, MULTIDISCIPLINARY;ECOLOGY;ENVIRONMENTAL SCIENCES | 2024 | 6.4 | 5.9 | 6.01 | 2025-04-16 | 13 | 13 | Straw; Chemical fertilization; Organic fertilization; Global warming potential | GREENHOUSE-GAS INTENSITY; CARBON SEQUESTRATION; CROPPING SYSTEMS; COVER CROPS; YIELD; EMISSION; FERTILIZATION; MANAGEMENT; OXIDATION; ROTATION | Chemical fertilization; Global warming potential; Organic fertilization; Straw | biomass; carbon storage; cover crop; fertilizer application; global warming; green manuring; greenhouse gas; paddy field; recycling; straw | English | 2024 | 2024-01-01 | 10.1016/j.agee.2023.108742 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Blockchain-Assisted Secure and Lightweight Authentication Scheme for Multi-Server Internet of Drones Environments | Unmanned aerial vehicles (UAVs) have seen widespread adoption across diverse sectors, including agriculture, logistics, surveillance, and disaster management, due to their capabilities for real-time data acquisition and autonomous operations. The integration of UAVs with Internet of Things (IoT) systems further amplifies their functionality, enabling sophisticated applications such as smart city management and environmental monitoring. In this context, blockchain technology plays a pivotal role by providing a decentralized, tamper-resistant ledger that facilitates secure data exchange between UAVs and connected devices. Its transparent and immutable characteristics mitigate the risk of a single point of failure, thereby enhancing data integrity and bolstering trust within UAV-IoT communication networks. However, the interconnected nature of these systems introduces significant security challenges, including unauthorized access, data breaches, and a variety of network-based attacks. These issues are further compounded by the limited computational capabilities of IoT devices and the inherent vulnerabilities of wireless communication channels. Recently, a lightweight mutual authentication scheme using blockchain was presented; however, our analysis identified several critical security flaws in these existing protocols, such as drone impersonation and session key disclosure. To address these vulnerabilities, we propose a secure and lightweight authentication scheme for multi-server UAV-IoT environments. The proposed protocol effectively mitigates emerging security threats while maintaining low computational and communication overhead. We validate the security of our scheme using formal methods, including the Real-Or-Random (RoR) model and BAN logic. Comparative performance evaluations demonstrate that our protocol enhances security while also achieving efficiency, making it well-suited for resource-constrained IoT applications. | Ju, Sieun; Park, Hyewon; Son, Seunghwan; Kim, Hyungpyo; Park, Youngho; Park, Yohan | Keimyung Univ, Sch Comp Engn, Daegu 42601, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea | 58774961400; 59370367800; 57221744477; 59540397200; 56962990300; 55660095600 | 5585128@stu.kmu.ac.kr;wldnjsfuf@stu.kmu.ac.kr;sonshawn@knu.ac.kr;hpkim@knu.ac.kr;parkyh@knu.ac.kr;yhpark@kmu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 24 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | UAV; IoT; IoD; blockchain; multi-server; authentication; RoR model; BAN logic | ACCESS-CONTROL SCHEME; KEY AGREEMENT SCHEME; SURVEILLANCE | authentication; BAN logic; blockchain; IoD; IoT; multi-server; RoR model; UAV | English | 2024 | 2024-12 | 10.3390/math12243965 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Context-Aware Level-Wise Feature Fusion Network with Anomaly Focus for Precise Classification of Incomplete Atypical Femoral Fractures in X-Ray Images | Incomplete Atypical Femoral Fracture (IAFF) is a precursor to Atypical Femoral Fracture (AFF). If untreated, it progresses to a complete fracture, increasing mortality risk. However, due to their small and ambiguous features, IAFFs are often misdiagnosed even by specialists. In this paper, we propose a novel approach for accurately classifying IAFFs in X-ray images across various radiographic views. We design a Dual Context-aware Complementary Extractor (DCCE) to capture both the overall femur characteristics and IAFF details with the surrounding context, minimizing information loss. We also develop a Level-wise Perspective-preserving Fusion Network (LPFN) that preserves the perspective of features while integrating them at different levels to enhance model representation and sensitivity by learning complex correlations and features that are difficult to obtain independently. Additionally, we incorporate the Spatial Anomaly Focus Enhancer (SAFE) to emphasize anomalous regions, preventing the model bias toward normal regions, and reducing False Negatives and missed IAFFs. Experimental results show significant improvements across all evaluation metrics, demonstrating high reliability in terms of accuracy (0.931), F1-score (0.9456), and AUROC (0.9692), proving the model's potential for application in real medical settings. | Chang, Joonho; Lee, Junwon; Kwon, Doyoung; Lee, Jin-Han; Lee, Minho; Jeong, Sungmoon; Kim, Joon-Woo; Jung, Heechul; Oh, Chang-Wug | Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea; Kyungpook Natl Univ Hosp, Sch Med, Dept Orthoped Surg, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Med, Dept Med Informat, Daegu 41566, South Korea | Oh, Chang-Wug/AAO-4602-2021 | 57959597500; 57641592200; 57212002790; 57202149598; 57191730119; 23100090400; 22951329000; 55652175200; 22135834200 | joonnoz@knu.ac.kr;zini9405@knu.ac.kr;entropy0437@knu.ac.kr;jhlee.knuh@gmail.com;mholee@knu.ac.kr;jeongsm@knu.ac.kr;joonwoo@knu.ac.kr;heechul@knu.ac.kr;cwoh@knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 22 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | Incomplete Atypical Femoral Fracture; Atypical Femoral Fracture; X-ray; feature fusion; anomaly focus; tiny lesion; image classification; deep learning | BONE | anomaly focus; Atypical Femoral Fracture; deep learning; feature fusion; image classification; Incomplete Atypical Femoral Fracture; tiny lesion; X-ray | English | 2024 | 2024-11 | 10.3390/math12223613 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Design of Secure and Privacy-Preserving Data Sharing Scheme Based on Key Aggregation and Private Set Intersection in Medical Information System | Medical data sharing is pivotal in enhancing accessibility and collaboration among healthcare providers, researchers, and institutions, ultimately leading to enhanced patient outcomes and more efficient healthcare delivery. However, due to the sensitive nature of medical information, ensuring both privacy and confidentiality is paramount. Access control-based data sharing methods have been explored to address these issues, but data privacy concerns still remain. Therefore, this paper proposes a secure and privacy-preserving data sharing scheme that achieves an equilibrium between data confidentiality and privacy. By leveraging key aggregate encryption and private set intersection techniques, our scheme ensures secure data sharing while protecting against the exposure of sensitive information related to data. We conduct informal and formal security analyses, including Burrow-Abadi-Needham logic and Scyther, to demonstrate its resilience against potential adversarial attacks. We also implement the execution time for cryptographic operations using multiprecision integer and a rational arithmetic cryptographic library and perform comparative analysis with existing related schemes in terms of security, computational cost, and time complexity. Our findings demonstrate a high level of security and efficiency, demonstrating that the proposed scheme contributes to the field by providing a solution that protects data privacy while enabling secure and flexible sharing of medical data. | Oh, Jihyeon; Son, Seunghwan; Kwon, DeokKyu; Kim, Myeonghyun; Park, Yohan; Park, Youngho | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Keimyung Univ, Sch Comp Engn, Daegu 42601, South Korea | 57222066296; 57221744477; 57221739597; 57210278739; 55660095600; 56962990300 | j2hnoh@knu.ac.kr;sonshawn@knu.ac.kr;kdk145@knu.ac.kr;kimmyeong123@knu.ac.kr;yhpark@kmu.ac.kr;parkyh@knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 11 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 4.53 | 2025-05-07 | 5 | 6 | medical data sharing; key aggregate encryption; private set intersection; homomorphic encryption; mutual authentication | SEARCHABLE ENCRYPTION | homomorphic encryption; key aggregate encryption; medical data sharing; mutual authentication; private set intersection | English | 2024 | 2024-06 | 10.3390/math12111717 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Ecological integration of Vespa velutina Lepeletier, 1836 in South Korea: a comprehensive study of co-occurrence and interaction patterns with native social wasps | BACKGROUND The spread of Vespa velutina Lepeletier, 1836 (Asian hornet) in South Korea poses a threat to biodiversity and agriculture. Traditional species interaction models often fail to capture the complexity of invasive species dynamics. This study used association rule learning (ARL) and clustering analyses to explore the interactions of V. velutina with native Vespidae species in South Korea, with the aim of uncovering patterns of coexistence and competition. RESULTS Over 4 years (2020-2023), 304 traps were strategically placed across South Korea to collect data on Vespidae species. Our findings showed that Vespula flaviceps, Vespa crabro, and Vespula koreensis were the most frequently encountered species. V. velutina was also widespread, suggesting its successful integration into local ecosystems. The ARL analysis, using the 'apriori' algorithm, identified significant co-occurrence patterns and potential interactions. The rules generated indicated both competitive and coexistent relationships with varying levels of association strength across different regions. Clustering analyses, including hierarchical and k-means clustering, grouped species based on their occurrence similarities. The distinct clusters formed in the analysis highlighted the unique ecological roles and interactions of V. velutina and other Vespidae species in South Korean ecosystems. CONCLUSION This study confirms the successful establishment of V. velutina in diverse South Korean ecosystems and highlights its complex interactions with native species. These findings support the need for nuanced management strategies that consider the intricate ecological relationships of V. velutina. This approach is crucial for the effective management of invasive species and ecosystem conservation. | Park, Woong-Bae; Do, Yuno; Choi, Moon Bo | Kongju Natl Univ, Dept Biol Sci, Gongju, South Korea; Kyungpook Natl Univ, Inst Agr Sci & Technol, Daegu, South Korea | 57537588500; 52163435800; 51863232400 | kosinchoi@hanmail.net; | PEST MANAGEMENT SCIENCE | PEST MANAG SCI | 1526-498X | 1526-4998 | 80 | 12 | SCIE | AGRONOMY;ENTOMOLOGY | 2024 | 3.8 | 5.9 | 0 | 2025-05-07 | 0 | 0 | invasive species; association rule learning; Vespidae; ecological interactions; species distribution | HYMENOPTERA VESPIDAE; HORNET; IMPACT | association rule learning; ecological interactions; invasive species; species distribution; Vespidae | Animals; Ecosystem; Introduced Species; Republic of Korea; Wasps; South Korea; biodiversity; coexistence; intraspecific competition; invasive species; native species; population distribution; population dynamics; species occurrence; wasp; animal; ecosystem; introduced species; physiology; South Korea; wasp | English | 2024 | 2024-12 | 10.1002/ps.8348 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of chitooligosaccharide on the binding domain of the SARS-COV-2 receptor | The receptor-binding domain (RBD) is crucial for understanding how severe acute respiratory syndrome coronavirus (SARS-CoV-2) recognizes and infects host cells. Chitooligosaccharide (CS) exhibits diverse antiviral activities, with its derivatives showing remarkable efficacy in blocking SARS-CoV-2 infection. Thus, this study employed spectroscopy, virus-infected cell experiments, and molecular simulation to investigate the molecular interactions between CS and SARS-CoV-2 RBD, as well as their mechanisms. In spectroscopic experiments, all four CS variants with different molecular weights formed interactions with the RBD. These variants increased the resistance of HEK293ACE2 cells to SARS-CoV-2 invasion. Molecular docking revealed that the four CS variants could bind to the RBD through hydrogen bonding or salt-bridge interactions, forming stable complexes. Chitotetraose provided stronger protection to HEK293ACE2 cells compared to other CS variants and displayed higher molecular docking scores. Further investigation into the optimal docking conformation of chitotetraose was conducted through molecular dynamics simulation methods. This study lays a solid theoretical foundation and provides a scientific basis for the development of targeted RBD inhibitors, as well as drug screening and application against novel coronaviruses. | Li, Yue; Zhao, Chunyu; Zhuang, Zihui; Moon, Uk Yeol; Park, Jeongwoo; Choi, Eui-Hwan; Min, Sang-Hyun; Jiang, Ge | Dalian Univ, Coll Life & Hlth, Dalian 116622, Peoples R China; K MEDIhub, New Drug Dev Ctr, 80 Chumbok Ro, Daegu 41061, South Korea; Kyungpook Natl Univ, Dept Innovat Pharmaceut Sci, 80 Daehak Ro, Daegu 41566, South Korea | 58141720200; 59295543200; 59296219300; 8263964600; 59296107400; 56727293700; 7202852238; 57205144783 | shmin03@knu.ac.kr;jiangge1004@163.com; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 278 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 2.1 | 2025-05-07 | 1 | 8 | Receptor-binding domain; Chitooligosaccharide; Spectroscopy; Molecular simulation | MOLECULAR DOCKING | Chitooligosaccharide; Molecular simulation; Receptor-binding domain; Spectroscopy | Angiotensin-Converting Enzyme 2; Antiviral Agents; Binding Sites; Chitin; Chitosan; COVID-19; COVID-19 Drug Treatment; HEK293 Cells; Humans; Molecular Docking Simulation; Molecular Dynamics Simulation; Oligosaccharides; Protein Binding; Protein Domains; SARS-CoV-2; SARS-CoV-2 variants; Spike Glycoprotein, Coronavirus; Coronavirus; Hydrogen bonds; Molecular modeling; Targeted drug delivery; chitooligosaccharide; oligosaccharide; receptor binding domain; unclassified drug; viral protein; ACE2 protein, human; angiotensin converting enzyme 2; antivirus agent; chitin; chitosan; coronavirus spike glycoprotein; oligochitosan; oligosaccharide; protein binding; spike protein, SARS-CoV-2; Antiviral activities; Blockings; Chitooligosaccharides; HEK-293; Host cells; Molecular docking; Molecular simulations; Receptor-binding domains; Severe acute respiratory syndrome coronavirus; Article; binding affinity; circular dichroism; controlled study; coronavirus disease 2019; crystal structure; fluorescence analysis; HEK293 cell line; human; human cell; hydrogen bond; microenvironment; molecular docking; molecular dynamics; principal component analysis; receptor binding; Severe acute respiratory syndrome coronavirus 2; simulation; spatial analysis; three-dimensional imaging; ultraviolet spectrophotometry; binding site; chemistry; COVID-19 pharmacotherapy; drug effect; genetics; metabolism; molecular docking; molecular dynamics; protein domain; virology; Molecular docking | English | 2024 | 2024-10 | 10.1016/j.ijbiomac.2024.134957 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Enhancing Surveillance Vision with Multi-Layer Deep Learning Representation | This paper aimed to develop a method for generating sand-dust removal and dehazed images utilizing CycleGAN, facilitating object identification on roads under adverse weather conditions such as heavy dust or haze, which severely impair visibility. Initially, the study addressed the scarcity of paired image sets for training by employing unpaired CycleGAN training. The CycleGAN training module incorporates hierarchical single-scale Retinex (SSR) images with varying sigma sizes, facilitating multiple-scaled trainings. Refining the training data into detailed hierarchical layers for virtual paired training enhances the performance of CycleGAN training. Conventional sand-dust removal or dehazing algorithms, alongside deep learning methods, encounter challenges in simultaneously addressing sand-dust removal and dehazing with a singular algorithm. Such algorithms often necessitate resetting hyperparameters to process images from both scenarios. To overcome this limitation, we proposed a unified approach for removing sand-dust and haze phenomena using a single model, leveraging images processed hierarchically with SSR. The image quality and image sharpness metrics of the proposed method were BRIQUE, PIQE, CEIQ, MCMA, LPC-SI, and S3. In sand-dust environments, the proposed method achieved the highest scores, with an average of 21.52 in BRISQUE, 0.724 in MCMA, and 0.968 in LPC-SI compared to conventional methods. For haze images, the proposed method outperformed conventional methods with an average of 3.458 in CEIQ, 0.967 in LPC-SI, and 0.243 in S3. The images generated via this proposed method demonstrated superior performance in image quality and sharpness evaluation compared to conventional algorithms. The outcomes of this study hold particular relevance for camera images utilized in automobiles, especially in the context of self-driving cars or CCTV surveillance systems. | Son, Dong-Min; Lee, Sung-Hak | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | ; Son, Dong-Min/LZH-4025-2025 | 57216612214; 7601395661 | forhollow@knu.ac.kr;shak2@ee.knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 9 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 1 | 1 | sand-dust; dehaze; image-to-image translation; CycleGAN; Retinex; SSR; MSR | CycleGAN; dehaze; image-to-image translation; MSR; Retinex; sand–dust; SSR | English | 2024 | 2024-05 | 10.3390/math12091313 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Enhancing the dispersibility of Gelidium amansii-derived microfibrillated cellulose through centrifugal fractionation | Hydrothermal pretreatment is useful for microfibrillated cellulose (MFC) preparation due to its safety, but the remaining hemicellulose might affect MFC properties. This study aimed to investigate the effect of centrifugation time on hemicellulose removal and the physicochemical properties of MFC obtained after hydrothermal pretreatment and micro-fibrillation. In this study, centrifugation was applied to the MFC suspension at varying duration times. Composition analysis and Fourier transform infrared spectra indicated that fractionated MFC has no hemicellulose content after 10, 20, and 30 min centrifugation. It also showed an approximately 5 times higher than 0.5 % g/g of initial solid concentration, indicated by a lower gel concentration point, than unfractionated MFC. Scanning electron microscope images of the fractionated MFC for 30 min (MFC2C) presented thin, long cellulose fibrils of 517 nm in average diameter and 635-10,000 nm in length that induced a slower sedimentation rate. MFC2C dispersion was also improved by autoclave sterilization by regulating cellulose structure, rheology, and crystallinity. As a result, MFC dispersibility can be enhanced by removing hemicellulose through simple centrifugation. | Istianah, Nur; Kang, Hye Jee; Lee, Yeon Ju; Choe, Deokyeong; Jung, Sung Keun; Hong, Sung-Chul; Jung, Young Hoon | Kyungpook Natl Univ, Sch Food Sci & Biotechnol, Daegu 41566, South Korea; Univ Brawijaya, Dept Food Sci & Biotechnol, Malang 65145, Indonesia; Kunsan Natl Univ, Dept Food Sci & Biotechnol, Gunsan 54150, South Korea | Hong, Sung-Chul/ABA-5643-2021; Choe, Deokyeong/AAQ-1194-2020; Istianah, Nur/MAH-5134-2025; Jung, Young/F-1703-2013; Jung, SUNG KEUN/AGR-2623-2022 | 56664484400; 57219656318; 58700074500; 37074453400; 35310491400; 58612005000; 55550063700 | younghoonjung@knu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 262 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 0.7 | 2025-05-07 | 2 | 2 | Centrifugation; Gelidium amansii; Microfibrillated cellulose; Dispersibility; Sedimentation rate | SUSPENSIONS; POPLAR | Centrifugation; Dispersibility; Gelidium amansii; Microfibrillated cellulose; Sedimentation rate | Cellulose; Centrifugation; Concentration; Crystallinity; Dispersing; Infrared Spectra; Pretreatment; Scanning Electron Microscopy; Cellulose; Edible Seaweeds; Gelidium; Rhodophyta; Cellulose; Crystallinity; Physicochemical properties; Scanning electron microscopy; cellulose; glucan; hemicellulose; microfibrillated cellulose; nanocrystal; osmium; sulfuric acid; unclassified drug; Centrifugal fractionation; Composition analysis; Dispersibilities; Duration time; Fourier transform infrared spectra; Gelidium amansii; Hydrothermal pretreatment; Physicochemical property; Property; Sedimentation rates; Article; biomass; carbohydrate analysis; centrifugation; Codium fragile; dispersion; Ecklonia cava; fibril; flow kinetics; Fourier transform infrared spectroscopy; fractionation; Gelidium amansii; high performance liquid chromatography; high pressure processing; hydrogen bond; microwave assisted extraction; moisture; nonhuman; red alga; Saccharina japonica; Sargassum fusiforme; scanning electron microscopy; sedimentation rate; shear stress; statistical analysis; viscosity; chemistry; Gelidium; red alga; Centrifugation | English | 2024 | 2024-03 | 10.1016/j.ijbiomac.2024.129909 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Exploring temperature-responsive drug delivery with biocompatible fatty acids as phase change materials in ethyl cellulose nanofibers | This study introduces a novel temperature-responsive drug delivery system using ethyl cellulose (EC) nanofibers encapsulating a eutectic mixture of lauric acid/stearic acid (LA/SA) as phase change materials (PCMs) and Rhodamine B (RhB) as a model drug. Employing blend electrospinning, the nanofibers achieved controlled drug release responsive to temperature changes. The peak shift of the carbonyl group in FTIR analysis confirmed drug-polymer compatibility, while the absence of RhB peaks in the XRD and DSC assessments revealed RhB's amorphous distribution within the fibers. Our findings demonstrate that RhB release is dependent on its loading, with a slow initial release (<2 %) for 1 % and 5 % RhB loadings and a burst release (similar to 12 %) for 10 % loading. Notably, the release rate was tunable at 37 degrees C by adjusting LA/SA concentration. The optimal LA/SA loading for temperature-responsive release is identified as 10 %. Over 240 h, there is a 32 % increase in RhB release at 37 degrees C, and an additional 8 % increase at 40 degrees C, compared to 25 degrees C. This research illustrates the potential of PCM-integrated nanofibers in smart drug delivery, particularly for chemotherapy, antibiotics, and anti-inflammatory drugs, showcasing an innovative approach to improving therapeutic efficiency while reducing side effects. | Wildy, Michael; Wei, Wanying; Xu, Kai; Schossig, John; Hu, Xiao; de la Cruz, David Salas; Hyun, Dong Choon; Lu, Ping | Rowan Univ, Dept Chem & Biochem, Glassboro, NJ 08028 USA; Rowan Univ, Dept Phys & Astron, Glassboro, NJ 08028 USA; Rutgers Univ Camden, Ctr Computat & Integrat Biol, Dept Chem, 315 Penn St, Camden, NJ 08102 USA; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea | Lu, Ping/D-4724-2011 | 57846873700; 57219923324; 58419841800; 58420501800; 55549803100; 35410228500; 15834575400; 57195511292 | lup@rowan.edu; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 266 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 4.9 | 2025-05-07 | 16 | 16 | Temperature-responsive drug delivery system; Electrospinning; Ethyl cellulose nanofibers; Phase change material; Lauric acid; Stearic acid; Eutectic mixture; Rhodamine B | CONTROLLED-RELEASE; ELECTROSPUN NANOFIBERS; TUNABLE RELEASE; WETTABILITY; FABRICATION; MORPHOLOGY; FIBERS | Electrospinning; Ethyl cellulose nanofibers; Eutectic mixture; Lauric acid; Phase change material; Rhodamine B; Stearic acid; Temperature-responsive drug delivery system | Delivery; Ethyl Cellulose; Eutectics; Lauric Acid; Loading; Release; Rhodium Compounds; Temperature; Biocompatible Materials; Cellulose; Drug Carriers; Drug Delivery Systems; Drug Liberation; Fatty Acids; Nanofibers; Phase Transition; Rhodamines; Temperature; Biocompatibility; Chemotherapy; Drug interactions; Electrospinning; Eutectics; Nanocellulose; Nanofibers; Phase change materials; Rhodium compounds; Targeted drug delivery; ethyl cellulose; fatty acid; lauric acid; nanofiber; nanoparticle; plasticizer; polymer; polyvinyl alcohol; rhodamine B; stearic acid; biomaterial; cellulose; drug carrier; ethyl cellulose; fatty acid; rhodamine; Cellulose nanofibers; Drug-delivery systems; Ethyl cellulose; Ethyl cellulose nanofiber; Eutectic mixture; Lauric acid; Model drugs; Rhodamine-B; Temperature-responsive; Temperature-responsive drug delivery system; Article; biocompatibility; controlled drug release; controlled study; cytotoxicity; differential scanning calorimetry; drug delivery system; drug release; electrospinning; encapsulation; Fourier transform infrared spectroscopy; high performance liquid chromatography; human; hydrophilicity; hydrophobicity; infrared spectroscopy; moisture; nonhuman; pH; scanning electron microscopy; temperature; X ray diffraction; chemistry; drug delivery system; drug release; phase transition; Controlled drug delivery | English | 2024 | 2024-05 | 10.1016/j.ijbiomac.2024.131187 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fabrication of atelocollagen-coated bioabsorbable suture and the evaluation of its regenerative efficacy in Achilles tendon healing using a rat experimental model | Recently, the incidence of Achilles tendon ruptures (ATRs) has become more common, and repair surgery using a bioabsorbable suture is generally preferred, particularly in the case of healthy patients. Sutures composed of poly (lactic-co-glycolic acid) (PLGA) are commonly used in ATR surgeries. Nevertheless, owing to the inherent limitations of PLGA, novel bioabsorbable sutures that can accelerate Achilles tendon healing are sought. Recently, several studies have demonstrated the beneficial effects of atelocollagen on tendon healing. In this study, poly (3,4-dihydroxy-L-phenylalanine) (pDOPA), a hydrophilic biomimetic material, was used to modify the hydrophobic surface of a PLGA suture (Vicryl, VC) for the stable coating of atelocollagen on its surface. The main objective was to fabricate an atelocollagen-coated VC suture and evaluate its performance in the healing of Achilles tendon using a rat model of open repair for ATR. Structural analyses of the surface-modified suture indicated that the collagen was successfully coated on the VC/pDOPA suture. Postoperative in vivo biomechanical analysis, histological evaluation, ultrastructural/morphological analyses, and western blotting confirmed that the tendons in the VC/pDOPA/Col group exhibit superior healing than those in the VC and VC/pDOPA groups after 1 and 6 weeks following the surgery. The this study suggests that atelocollagen-coated PLGA/pDOPA sutures are preferable for future medical applications, especially in the repair of ATR. | Yeo, Yong Ho; Kyeong, Seong; Kim, Min Hee; Lee, Su Jeong; Han, Seung Yun; Park, Mun Hyang; Kim, Dae Young; Kim, Dae Yeung; Ha Yoo, In; Kang, Chan; Song, Jae Hwang; Park, Won Ho | Chungnam Natl Univ, Dept Organ Mat Engn, Daejeon 34134, South Korea; Konyang Univ Hosp, Dept Orthoped Surg, Daejeon, South Korea; Kyungpook Natl Univ, Dept Text Syst Engn, Taegu, South Korea; Organoid Sci Co Ltd, R&D Planning team, 331 Pangyo Ro, Seongnam, South Korea; Konyang Univ, Coll Med, Dept Anat, Daejeon, South Korea; Konyang Univ, Coll Med, Dept Pathol, Daejeon, South Korea; Univ Ulsan Coll Med, Asan Med Ctr, Asan Med Inst Convergence Sci & Technol, Dept Med Sci, Seoul, South Korea; Chungnam Natl Univ Hosp, Dept Orthoped Surg, Daejeon, South Korea | Song, Jaehwang/AAX-9140-2021; Lee, Su-Jeong/AAH-8467-2021 | 57216162627; 57829501400; 57188948163; 37056981800; 37027861900; 59136668000; 57217206812; 57225053317; 57226866486; 36437191000; 56711446400; 57211114215 | songjajj@hanmail.net;parkwh@cnu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 271 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 0 | 2025-05-07 | 1 | 1 | Achilles tendon rupture; PLGA suture; pDOPA; Collagen; Coating | ENDOTHELIAL GROWTH-FACTOR; COLLAGEN; REPAIR; SURFACE; SCAFFOLDS; RUPTURES | Achilles tendon rupture; Coating; Collagen; pDOPA; PLGA suture | Absorbable Implants; Achilles Tendon; Animals; Coated Materials, Biocompatible; Collagen; Disease Models, Animal; Male; Polylactic Acid-Polyglycolic Acid Copolymer; Rats; Rats, Sprague-Dawley; Regeneration; Sutures; Tendon Injuries; Wound Healing; Biomimetics; Collagen; Fabrication; Hydrophobicity; Medical applications; Peptides; Rats; Repair; Surface chemistry; Surgery; Tendons; atelocollagen; collagen; poly 3,4 dihydroxy L phenylalanine; poly lactic co glycolic acid; polyvinylidene fluoride; propylene oxide; unclassified drug; vasculotropin; atelocollagen; biocompatible coated material; collagen; polyglactin; Achilles tendon rupture; Achilles tendons; Atelocollagen; Bioabsorbable; Poly lactic-co-glycolic acid; Poly(3,4-dihydroxy-L-phenylalanine); Poly(lactic-co-glycolic acid); Poly(lactic-co-glycolic acid) suture; Tendon healing; Tendon ruptures; achilles tendon; achilles tendon rupture; animal experiment; animal model; animal tissue; Article; biomechanics; chemical structure; cyclization; electrospinning; extracellular matrix; field emission scanning electron microscopy; histology; human; Masson staining; myotendinous junction; nonhuman; rat; transmission electron microscopy; Western blotting; X ray photoemission spectroscopy; animal; biodegradable implant; chemistry; disease model; drug effect; injury; male; regeneration; Sprague Dawley rat; surgery; suture; tendon injury; wound healing; Coatings | English | 2024 | 2024-06 | 10.1016/j.ijbiomac.2024.132564 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Glycoprotein from Sargassum fusiforme exhibiting anti-inflammatory responses in vitro and in vivo via modulation of TLR4/MyD88 and NF-κB signaling | This study focuses on the identification and characterization of a glycoprotein from Sargassum fusiforme (Harvey) Setchell (SFGP), as well as investigating its potential anti-inflammatory properties both in vitro and in vivo, along with the underlying mechanism. SDS-PAGE analysis revealed a prominent band with a molecular weight of <10 kDa, consisting of 58.39 % protein and 41.61 % carbohydrates, which was confirmed through glycoprotein staining and Coomassie blue staining. Various analytical techniques, including high-resolution mass spectrometry (HRMS), FTIR, amino acid analysis, and UV-visible spectrometry, provided evidence for the presence of monosaccharides (such as D-glucose and mannose) and 17 amino acids linked by an O-glycopeptide bond. In vitro and in vivo studies were conducted to assess the anti-inflammatory activities of SFGP. The results demonstrated that SFGP effectively attenuated nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expressions in LPS-treated RAW264.7 cells. Moreover, SFGP administration significantly and dose-dependently suppressed TLR4/MyD88 signaling as well as the phosphorylation of MAPKs, I kappa B, and NF-kappa B, leading to a reduction in the production of TNF-alpha, IL-113, and IL-6 in LPS-stimulated RAW264.7 cells. Furthermore, the antiinflammatory efficacy of SFGP was validated in a carrageenan-induced inflammatory mouse model. These findings indicate that SFGP exhibits anti-inflammatory characteristics and has the potential to be utilized as a novel anti-inflammatory agent. | Javed, Ahsan; Song, Bo-Rim; Lee, Chang Hyung; Alam, Md Badrul; Kim, Solomon L.; Lee, Sang-Han | Kyungpook Natl Univ, Grad Sch, Dept Food Sci & Biotechnol, Daegu 41566, South Korea; Seoul Natl Univ, BioMAX Inst, Seoul 08826, South Korea; Kyungpook Natl Univ, Food & Bioind Res Inst, Inner Beauty Antiaging Ctr, Daegu 41566, South Korea; Calif Northstate Univ, Coll Med, Elk Grove, CA 95757 USA | Lee, Seung Eun/ABG-1607-2021; Javed, Ahsan/ABK-2648-2022; Lee, Chang Hyung/MTD-8229-2025; Alam, Md Badrul/AFL-7668-2022 | 57204433098; 57223138662; 56818086500; 56706777100; 55504396700; 57221453703 | sang@knu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 272 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 2.1 | 2025-05-07 | 7 | 7 | Glycoprotein; Carrageenan model; RAW 264.7; Sargassum fusiforme; O-glycopeptide | ANTIOXIDANT ACTIVITY; ACUTE-INFLAMMATION; ACTIVATION; PURIFICATION; MACROPHAGES; PATHWAYS | Carrageenan model; Glycoprotein; O-glycopeptide; RAW 264.7; Sargassum fusiforme | Animals; Anti-Inflammatory Agents; Cyclooxygenase 2; Cytokines; Edible Seaweeds; Glycoproteins; Lipopolysaccharides; Male; Mice; Myeloid Differentiation Factor 88; NF-kappa B; Nitric Oxide Synthase Type II; RAW 264.7 Cells; Sargassum; Sargassum fusiforme; Signal Transduction; Toll-Like Receptor 4; Amino acids; Cell signaling; Glucose; Mass spectrometry; Nitric oxide; Peptides; amino acid; carrageenan; glycoprotein; indometacin; interleukin 1beta; interleukin 6; monosaccharide; myeloid differentiation factor 88; nitric oxide; Sargassum fusiforme glycoprotein; toll like receptor 4; tumor necrosis factor; unclassified drug; xylene; antiinflammatory agent; cyclooxygenase 2; cytokine; glycoprotein; immunoglobulin enhancer binding protein; inducible nitric oxide synthase; lipopolysaccharide; Myd88 protein, mouse; Tlr4 protein, mouse; Anti-inflammatories; Carrageenan model; Carrageenans; Glycopeptides; In-vitro; O-glycopeptide; RAW 264.7; Raw 264.7 cells; Sargassum fusiforme; Vitro and in vivo; amino acid analysis; animal cell; animal experiment; animal model; Article; cell viability; controlled study; ear edema; Fourier transform infrared spectroscopy; in vitro study; in vivo study; NF kB signaling; nonhuman; paw edema; polyacrylamide gel electrophoresis; RAW 264.7 cell line; Sargassum fusiforme; Western blotting; animal; chemistry; drug effect; edible seaweed; male; metabolism; mouse; Sargassum; Sargassum fusiforme; signal transduction; Glycoproteins | English | 2024 | 2024-06 | 10.1016/j.ijbiomac.2024.132574 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Highly efficient site-specific protein modification using tyrosinase from Streptomyces avermitilis: Structural insight | Tyrosinase-mediated protein conjugation has recently drawn attention as a site-specific protein modification tool under mild conditions. However, the tyrosinases reported to date act only on extremely exposed tyrosine residues, which limits where the target tyrosine can be located. Herein, we report a tyrosinase from Streptomyces avermitilis (SaTYR), that exhibits a much higher activity against tyrosine residues on the protein surface than other tyrosinases. We determined the crystal structure of SaTYR and revealed that the enzyme has a relatively flat and shallow substrate-binding pocket to accommodate a protein substrate. We demonstrated SaTYR-mediated fluorescence dye tagging and PEGylation of a surface tyrosine residue that was unreacted by other tyrosinases with an approximately 95.2 % conjugation yield in 1 h. We also present a structural rationale that considers the steric hindrance from adjacent residues and surrounding structures along with the extent of solvent exposure of residues, as necessary when determining the optimal positions for introducing target tyrosine residues in SaTYR-mediated protein modification. The study demonstrated that the novel tyrosinase, SaTYR, extends the scope of tyrosinase-mediated protein modification, and we propose that site-specific tyrosine conjugation using SaTYR is a promising strategy for protein bioconjugation in various applications. | Hong, Hwaseok; Lee, Uk-Jae; Lee, Seul Hoo; Kim, Hyun; Lim, Gyu-Min; Lee, Sang-Hyuk; Son, Hyeoncheol Francis; Kim, Byung-Gee; Kim, Kyung-Jin | Kyungpook Natl Univ, KNU Inst Microbiol, Sch Life Sci, BK21 FOUR KNU Creat Biores Grp, Daegu 41566, South Korea; Korea Inst Sci & Technol, Clean Energy Res Ctr, Seoul, South Korea; Seoul Natl Univ, Sch Chem & Biol Engn, Seoul 08826, South Korea; Seoul Natl Univ, Inst BioEngn, Bio MAX N Bio, Seoul 08826, South Korea; Seoul Natl Univ, Interdisciplinary Program Biochem Engn & Biotechno, Seoul 08826, South Korea; Kyungpook Natl Univ, Sch Life Sci, KNU Creat Biores Grp, Daegu 41566, South Korea | Lee, Uk-Jae/NLO-2035-2025; Kim, Kyung-Jin/MVY-3405-2025 | 57208592877; 57220610849; 57205261937; 59447040200; 59065702600; 57210268006; 56015598000; 34975479200; 55510867400 | byungkim@snu.ac.kr;kkim@knu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 255 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 0.39 | 2025-04-16 | 2 | 2 | Tyrosinase; Crosslinking; Protein bioconjugation | MUSHROOM TYROSINASE; MECHANISM; DERIVATIVES; EXPRESSION | Crosslinking; Protein bioconjugation; Tyrosinase | Monophenol Monooxygenase; Proteins; Streptomyces; Streptomyces avermitilis; Tyrosine; Amino acids; Bacteria; Crystal structure; fluorescent dye; green fluorescent protein; monophenol monooxygenase; tyrosine; protein; Bio-conjugation; Condition; Protein bioconjugation; Protein conjugations; Protein modifications; Site-specific; Streptomyces avermitilis; Structural insights; Tyrosinase; Tyrosine residues; Article; Bacillus megaterium; binding site; Burkholderia thailandensis; conjugation; controlled study; crystal structure; crystallization; enzyme activity; enzyme substrate; nonhuman; PEGylation; protein cross linking; protein modification; site directed mutagenesis; stereospecificity; Streptomyces avermitilis; chemistry; metabolism; Streptomyces; Streptomyces avermitilis; Proteins | English | 2024 | 2024-01 | 10.1016/j.ijbiomac.2023.128313 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Improving Systematic Generalization of Linear Transformer Using Normalization Layers and Orthogonality Loss Function | A Linear Transformer linearizes the attention mechanism of the vanilla Transformer architecture, significantly improving efficiency and achieving linear theoretical complexity with respect to sequence length. However, few studies have explored the capabilities of the Linear Transformer beyond its efficiency. In this work, we investigate the systematic generalization capability of the Linear Transformer, a crucial property for strong generalization to unseen data. Through preliminary experiments, we identify two major issues contributing to its unstable systematic generalization performance: (i) unconstrained norms of Queries and Keys, and (ii) high correlation among Values across the sequence. To address these issues, we propose two simple yet effective methods: normalization layers for Queries and Keys, and an orthogonality loss function applied to Values during training. In experiments, we demonstrate that applying these methods to the Linear Transformer significantly improves its stability and systematic generalization performance across several well-known tasks. Furthermore, our proposed methods outperform the vanilla Transformer on specific systematic generalization tasks, such as the sort-of-CLEVR and SCAN tasks. | Park, Taewon; Kim, Hyun-Chul | Kyungpook Natl Univ, Dept Artificial Intelligence, Daegu 41566, South Korea | 57219762271; 57194876917 | ptw4570@knu.ac.kr;hyunchul_kim@knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 21 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 0 | 0 | transformer; linear transformer; systematic generalization; normalization; orthogonality loss | linear transformer; normalization; orthogonality loss; systematic generalization; transformer | English | 2024 | 2024-11 | 10.3390/math12213390 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||||
| ○ | ○ | Article | Low-Light Image Enhancement Using CycleGAN-Based Near-Infrared Image Generation and Fusion | Image visibility is often degraded under challenging conditions such as low light, backlighting, and inadequate contrast. To mitigate these issues, techniques like histogram equalization, high dynamic range (HDR) tone mapping and near-infrared (NIR)-visible image fusion are widely employed. However, these methods have inherent drawbacks: histogram equalization frequently causes oversaturation and detail loss, while visible-NIR fusion requires complex and error-prone images. The proposed algorithm of a complementary cycle-consistent generative adversarial network (CycleGAN)-based training with visible and NIR images, leverages CycleGAN to generate fake NIR images by blending the characteristics of visible and NIR images. This approach presents tone compression and preserves fine details, effectively addressing the limitations of traditional methods. Experimental results demonstrate that the proposed method outperforms conventional algorithms, delivering superior quality and detail retention. This advancement holds substantial promise for applications where dependable image visibility is critical, such as autonomous driving and CCTV (Closed-Circuit Television) surveillance systems. | Lee, Min-Han; Go, Young-Ho; Lee, Seung-Hwan; Lee, Sung-Hak | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | Lee, SeungHwan/LUY-2745-2024 | 59489505100; 58966827500; 58149054300; 7601395661 | lmh2604@knu.ac.kr;gyh7454@knu.ac.kr;hyo98120@knu.ac.kr;shak2@ee.knu.ac.kr; | MATHEMATICS | MATHEMATICS-BASEL | 2227-7390 | 12 | 24 | SCIE | MATHEMATICS | 2024 | 2.2 | 5.9 | 0 | 2025-05-07 | 1 | 2 | tone compression; CycleGAN; visible-NIR image fusion; contrast-limited adaptive histogram equalization | QUALITY ASSESSMENT | contrast-limited adaptive histogram equalization; CycleGAN; tone compression; visible–NIR image fusion | English | 2024 | 2024-12 | 10.3390/math12244028 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Low-temperature, ultra-fast, and recyclable self-healing nanocomposites reinforced with non-solvent silylated modified cellulose nanocrystals | Developing polymeric materials with remarkable mechanical properties and fast self-healing performance even at low temperatures is challenging. Herein, the polymeric nanocomposites containing silane-treated cellulose nanocrystals (SCNC) with ultrafast self-healing and exceptional mechanical characteristics were developed even at low temperatures. First, CNC is modified with a cyclic silane coupling agent using an eco-friendly chemical vapor deposition method. The nanocomposite was then fabricated by blending SCNC with matrix prepolymer, prepared from monomers that possess lower critical solution temperature, followed by the inclusion of dibutyltin dilaurate and hexamethylene diisocyanate. The self-healing capability of the novel SCNC/polymer nanocomposites was enhanced remarkably by increasing the content of SCNC (0-3 wt%) and reaching (>= 99 %) at temperatures (5 & 25 degrees C) within <20 min. Moreover, SCNC-3 showed a toughness of (2498 MJ/m(3)) and SCNC-5 displayed a robust tensile strength of (22.94 +/- 0.4 MPa) whereas SCNC-0 exhibited a lower tensile strength (7.4 +/- 03 MPa) and toughness of (958 MJ/m(3)). Additionally, the nanocomposites retain their original mechanical properties after healing at temperatures (5 & 25 degrees C) owing to the formation of hydrogen bonds via incorporation of the SCNC. These novel SCNC-based self-healable nanocomposites with tunable mechanical properties offer novel insight into preparing damage and temperature-responsive flexible and wearable devices. | Saddique, Anam; Kim, Jin Chul; Bae, Jinhye; Cheong, In Woo | Kyungpook Natl Univ, Dept Appl Chem, 80 Daehak Ro, Daegu 41566, South Korea; Korea Res Inst Chem Technol KRICT, Dept Specialty Chem, Div Specialty & Biobased Chem Technol, Ulsan 44412, South Korea; Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA; Univ Calif San Diego, Chem Engn Program, La Jolla, CA 92093 USA | 57312386800; 56805502600; 56115343100; 7006733373 | jckim81@krict.re.kr;j3bae@ucsd.edu;inwoo@knu.ac.kr; | INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | INT J BIOL MACROMOL | 0141-8130 | 1879-0003 | 254 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;CHEMISTRY, APPLIED;POLYMER SCIENCE | 2024 | 8.5 | 5.9 | 1.94 | 2025-04-16 | 6 | 6 | Low -temperature self -healing; Cellulose nanocrystals; Nanocomposites; Metal-ligand coordination | SURFACE MODIFICATION; HYDROGELS; TOUGH; MORPHOLOGY; COMPOSITE; DIOXIDE; LINKING; FIBERS; STRAIN | Cellulose nanocrystals; Low-temperature self-healing; Metal-ligand coordination; Nanocomposites | Cellulose Derivatives; Hydrogen Bonds; Mixing; Monomers; Temperature; Cellulose; Nanocomposites; Nanoparticles; Polymers; Silanes; Temperature; Blending; Cellulose; Cellulose derivatives; Chemical vapor deposition; Hydrogen bonds; Monomers; Nanocrystals; Self-healing materials; Temperature; Tensile strength; cellulose nanocrystal; dibutyltin dilaurate; hexamethylene diisocyanate; lauric acid derivative; nanocomposite; polymer; silane; unclassified drug; cellulose; nanoparticle; silane derivative; Ligand coordination; Low-temperature self-healing; Lows-temperatures; Metal ligands; Metal-ligand coordination; Modified cellulose; Non-solvents; Recyclables; Self-healing; Ultra-fast; Article; biomass; chemical vapor deposition; controlled study; critical solution temperature; cross linking; hydrogen bond; hydrophilicity; low temperature; pH; polymerization; recycling; silylation; sustainable development; synthesis; tensile strength; chemistry; temperature; Nanocomposites | English | 2024 | 2024-01 | 10.1016/j.ijbiomac.2023.127984 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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