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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 | Investigating unsteady airflow characteristics in the human upper airway based on the clinical inspiration data | To enhance understanding of the airflow characteristics in the human respiratory system during realistic inspiration, we investigated the airflow field in a human upper airway model using large eddy simulation and the dynamic grid method, taking into account clinically measured inspiratory characteristics. The results reveal the following novel findings: (1) The laryngeal jet and recirculation zone exhibit significant unsteadiness, with their dynamic characteristics primarily influenced by the transient inspiration flow rate and glottis motion. This pattern holds true for other airflow characteristics as well. (2) Glottis expansion reduces the energy consumed during inhalation for both steady and unsteady inspiratory flow rates, with the degree of expansion being directly related to the reduction in energy. We can accurately predict power loss by considering the glottis area and inspiratory flow rate. (3) Analysis of spectral entropy clearly demonstrates that the flow transitions from the laminar to turbulence earlier when using clinical inspiration data. Turbulence intensity in the trachea increases when either glottis motion or the transient inspiratory is ignored. In conclusion, the airflow dynamics are significantly more unsteady compared to cases where we ignore either glottis motion or the transient inspiratory flow rate. A precise understanding of realistic respiratory airflow cannot be achieved by assuming either a rigid glottis or a steady inspiration pattern. Therefore, it is crucial to use accurate inspiratory data when studying the properties of airflow structures in the human respiratory system. Moreover, incorporating more physiological data is also essential to obtain realistic respiratory airflow characteristics. | JIng, Hao; Ge, Haiwei; Wang, Li; Choi, Sanghun; Farnoud, Ali; An, Zhongnan; Lai, Wending; Cui, Xinguang | Huazhong Univ Sci & Technol, Sch Aerosp Engn, Wuhan 430074, Peoples R China; Zhejiang Lab, Res Ctr Intelligent Supercomp, Hangzhou 311101, Peoples R China; Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Inst Computat Biol, D-85764 Neuherberg, Germany | Ge, Hai-Wen/R-1604-2018; Ge, Haiwen/R-1604-2018; Farnoud, Ali/AAW-6839-2021; Choi, Sanghun/AGS-7430-2022 | 57222810520; 14421143900; 57196340157; 55847101000; 57200130774; 58671001700; 58670782300; 50261346800 | xinguang_cui@mail.hust.edu.cn; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 35 | 10 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2023 | 4.1 | 3.7 | 1.26 | 2025-06-25 | 7 | 10 | PARTICLE DEPOSITION; POLLUTION | Large eddy simulation; Respiratory mechanics; Respiratory system; Spectrum analysis; Turbulence; Air-flow fields; Airflow characteristics; Dynamic grid; Energy; Human respiratory system; Human upper airway model; Inspiratory flow; Large-eddy simulations; Respiratory airflow; Upper airway; Flow rate | English | 2023 | 2023-10 | 10.1063/5.0169597 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Large eddy simulation study of the airflow characteristics in a human whole-lung airway model | Studying airflow characteristics in the human respiratory system is important for understanding the properties of the aerosol transport and deposition. This study first constructed a human whole-lung airway model (WLAM) with random features extending from the mouth to the 13th generation bronchus. The large eddy simulation method is utilized to investigate the features of both the averaged airflow fields and flow unsteadiness under inspiratory flow rates of 15 and 30 l/min, respectively. The results reveal the following novel findings: (1) secondary flow strength is not monotonically changing throughout the respiratory tract, depending on the local flow state and geometry, which allows for strong secondary flow motion even in the G13 bronchial airway. (2) In the upper airway, the peak distribution of turbulent kinetic energy (TKE) is due to in-plane secondary flow shear and longitudinal flow shear; local kinetic energy plays a vital role in the persistence of unsteadiness throughout the bronchial tree, which allows instability to still exist even in the bronchial airway with low Reynolds number. (3) TI is more dependent on the local flow state and geometric structure than TKE. These findings indicate that secondary flow and airflow unsteadiness in the thin bronchial airway are far stronger than previously reported and cannot be neglected. Therefore, further studies should investigate airflow unsteadiness in the thin bronchial airway using a suitable WLAM instead of a segmented bronchial airway model. | Jing, Hao; Ge, Haiwen; Wang, Li; Zhou, Qizhi; Chen, Liang; Choi, Sanghun; Cui, Xinguang | Huazhong Univ Sci & Technol, Sch Aerosp Engn, Wuhan 430074, Peoples R China; Res Ctr Intelligent Supercomp, Zhejiang Lab, Hangzhou 311101, Peoples R China; Tianjin Univ, Sch Environm Sci & Engn, Tianjin 300072, Peoples R China; Zhejiang Univ, Affiliated Hosp 1, Sch Med, Hangzhou 310003, Peoples R China; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea | Ge, Hai-Wen/R-1604-2018; Choi, Sanghun/AGS-7430-2022; Ge, Haiwen/R-1604-2018 | 57222810520; 14421143900; 57196340157; 58511143900; 57226249040; 55847101000; 50261346800 | xinguang_cui@mail.hust.edu.cn; | PHYSICS OF FLUIDS | PHYS FLUIDS | 1070-6631 | 1089-7666 | 35 | 7 | SCIE | MECHANICS;PHYSICS, FLUIDS & PLASMAS | 2023 | 4.1 | 3.7 | 1.4 | 2025-06-25 | 9 | 10 | PARTICLE DEPOSITION; IMPACT; PERFORMANCE; TURBULENCE; TRANSPORT; THROAT; MOUTH; FIELD; LES | Atmospheric movements; Biological organs; Kinetic energy; Kinetics; Respiratory system; Reynolds number; Secondary flow; Shear flow; Airflow characteristics; Airway modeling; Bronchial airways; Flow shear; Flow state; Large-eddy simulations; Local flows; Lung airways; Simulation studies; Turbulent kinetic energy; Large eddy simulation | English | 2023 | 2023-07 | 10.1063/5.0156310 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | Meeting Abstract | Movement Disorders Associated with Cerebral Artery Stenosis: A Nationwide Study | Chung, Sun Ju; Choi, Nari; Oh, Eungseok; Ryu, Ho-Sung; You, Sooyeoun; Kim, Bum Joon; Lee, Seung Hyun; Park, Kye Won | Asan Med Ctr, Neurol, Seoul, South Korea; Heavenly Hosp, Gyeongju, South Korea; Chungnam Natl Univ, Coll Med, Neurol, Daejeon, South Korea; Kyungpook Natl Univ Hosp, Daegu, South Korea; Dongsan Med Ctr, Daegu, South Korea; Asan Med Ctr, Seoul, South Korea; Seoul Med Ctr, Seoul, South Korea; Uijeongbu Eulji Univ Hosp, Uijongbu, South Korea | Kim, Dong/AAH-2257-2021; Oh, Eungseok/AAL-8935-2020 | NEUROLOGY | NEUROLOGY | 0028-3878 | 1526-632X | 100 | 17 | SCIE | CLINICAL NEUROLOGY | 2023 | 8.4 | 3.7 | 0 | English | 2023 | 2023-04-25 | 10.1212/wnl.0000000000201782 | 바로가기 | 바로가기 | 바로가기 | |||||||||||||
| ○ | ○ | Article | A preliminary study about the potential risks of the UV-weathered microplastic: The proteome-level changes in the brain in response to polystyrene derived weathered microplastics | The growing use of plastic materials has resulted in a constant increase in the risk associated with microplastics (MPs). Ultra-violet (UV) light and wind break down modify MPs in the environment into smaller particles known as weathered MPs (WMPs) and these processes increase the risk of MP toxicity. The neurotoxicity of weathered polystyrene-MPs remains unclear. Therefore, it is important to understand the risks posed by WMPs. We evaluated the chemical changes of WMPs generated under laboratory-synchronized environmentally mimetic conditions and compared them with virgin MPs (VMPs). We found that WMP had a rough surface, slight yellow color, reduced molecular weight, and structural alteration compared with those of VMP. Next, 2 mu g of similar to 100 mu m in size of WMP and VMP were orally administered once a day for one week to C57BL/6 male mice. Proteomic analysis revealed that the WMP group had significantly increased activation of immune and neurodegenerationrelated pathways compared with that of the VMP group. Consistently, in in vitro experiments, the human brainderived microglial cell line (HMC-3) also exhibited a more severe inflammatory response to WMP than to VMP. These results show that WMP is a more profound inflammatory factor than VMP. In summary, our findings demonstrate the toxicity of WMPs and provide theoretical insights into their potential risks to biological systems and even humans in the ecosystem. | Kim, Hee-Yeon; Ashim, Janbolat; Park, Song; Kim, Wansoo; Ji, Sangho; Lee, Seoung-Woo; Jung, Yi-Rang; Jeong, Sang Won; Lee, Se-Guen; Kim, Hyun-Chul; Lee, Young-Jae; Kwon, Mi Kyung; Hwang, Jun-Seong; Shin, Jung Min; Lee, Sung-Jun; Yu, Wookyung; Park, Jin-Kyu; Choi, Seong-Kyoon | DGIST, Core Prot Resources Ctr, Daegu, South Korea; Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; DGIST, Dept Brain Sci, Daegu, South Korea; Kyungpook Natl Univ, Sch Life Sci, BK21 FOUR KNU Creat Biores Grp, Daegu, South Korea; DGIST, Div Biotechnol, Daegu, South Korea; Daegu Hlth Coll, Dept Compan Anim Hlth Management, Daegu, South Korea | Shin, Jung Min/KCJ-9261-2024; Ashim, Janbolat/P-9633-2017 | 58368914700; 57221564355; 57139047900; 57352897900; 57339736000; 57218827581; 7402506505; 57037609100; 8673372800; 57214326521; 57199021765; 57150067700; 57189033977; 55812326800; 57207065225; 56410212300; 35213723500; 55505432500 | schrisj@dgist.ac.kr;wkyu@dgist.ac.kr;jinkyu820@knu.ac.kr;cskbest@dgist.ac.kr; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 233 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 2.62 | 2025-06-25 | 20 | 24 | Polystyrene microplastics; Immune response; Proteomics; Brain; Weathering plastics | INFLAMMATION; IRRADIATION; COAGULATION; DEGRADATION; POLYMERS | Brain; Immune response; Polystyrene microplastics; Proteomics; Weathering plastics | Animals; Brain; Ecosystem; Humans; Male; Mice; Mice, Inbred C57BL; Microplastics; Plastics; Polystyrenes; Proteome; Proteomics; Water Pollutants, Chemical; Activation analysis; Cell culture; Mammals; Microplastic; Molecular biology; Particle size analysis; Toxicity; microplastic; plastic; polystyrene; proteome; microplastic; polystyrene derivative; Immune response; Level change; Microplastics; Plastic materials; Polystyrene microplastic; Potential risks; Proteomics; Ultra violet; Ultra-violet light; Weathering plastic; brain; immune response; plastic waste; polymer; proteomics; risk assessment; ultraviolet radiation; wind break; animal cell; animal experiment; Article; brain analysis; C57BL 6 mouse; comparative study; controlled study; ecosystem; Fourier transform infrared spectroscopy; gel permeation chromatography; immune response; immunostimulation; in vitro study; inflammation; liquid chromatography-mass spectrometry; male; microglial cell line; molecular weight; mouse; nerve degeneration; nonhuman; proteomics; scanning electron microscopy; theoretical study; weathering; analysis; animal; brain; C57BL mouse; human; proteomics; water pollutant; Polystyrenes | English | 2023 | 2023-09-15 | 10.1016/j.envres.2023.116411 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Environmental benefits from the use of CO2 in the thermal disposal of cigarette butts | As the global consumption of cigarettes has increased, the massive generation of cigarette butts (CBs) has led to critical environmental and health problems. Landfilling or incineration of CBs has been conventionally carried out, but such disposal protocols have suffered from the potential risks of the unwanted/uncontrolled release of leachates, carcinogens, and toxic chemicals into all environmental media. Thus, this study focuses on developing an environmentally dependable method for CB disposal. Littered CBs from filtered/electronic cigarettes were valorized into syngas (H2/CO). To seek a greener approach for the valorization of CBs, CO2 was intentionally considered as a reaction intermediate. Prior to multiple pyrolysis studies, the toxic chemicals in the CBs were qualitatively determined. This study experimentally proved that the toxic chemicals in CBs were detoxified/ valorized into syngas. Furthermore, this work demonstrated that CO2 was effective in thermally destroying toxic chemicals in CBs via a gas-phase reaction. The reaction features and CO2 synergistically enhance syngas production. With the use of a supported Ni catalyst and CO2, syngas production from the catalytic pyrolysis of CBs was greatly enhanced (approximately 4 times). Finally, the gas-phase reaction by CO2 was reliably maintained owing to the synergistic mechanistic/reaction feature of CO2 for coke formation prevention on the catalyst surface. | Kim, Youkwan; Cho, Seong-Heon; Lee, Sangyoon; Jung, Sungyup; Chen, Wei-Hsin; Kwon, Eilhann E. | Hanyang Univ, Dept Earth Resources & Environm Engn, Seoul 04763, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Natl Cheng Kung Univ, Dept Aeronaut & Astronaut, Tainan 701, Taiwan; Tunghai Univ, Res Ctr Smart Sustainable Circular Econ, Taichung 407, Taiwan; Natl Chin Yi Univ Technol, Dept Mech Engn, Taichung 411, Taiwan | ; Kwon, Eilhann/AGY-3339-2022; Chen, Wei-Hsin/S-2033-2018; Lee, Sang/ABC-8385-2020; Jung, Sungyup/ABE-1493-2021 | 57204070895; 56583023200; 57214885455; 55073290800; 57200873137; 9240622100 | ek2148@hanyang.ac.kr; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 220 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 0.72 | 2025-06-25 | 5 | 7 | Waste-to-Energy; Nickel catalyst; Thermo-chemical process; Cigarette waste; Pollutant reduction | PYROLYSIS; SMOKING; TOXICITY; BIOCHAR | Cigarette waste; Nickel catalyst; Pollutant reduction; Thermo-chemical process; Waste-to-Energy | Carbon Dioxide; Electronic Nicotine Delivery Systems; Incineration; Pyrolysis; Tobacco Products; carbon dioxide; coke; dichloromethane; nickel; carbon dioxide; carbon dioxide; catalyst; incineration; pyrolysis; valorization; waste management; Article; calibration; catalysis; catalyst; chemical reaction; chromatography; environmental temperature; human; online analysis; pollutant; pyrolysis; solvent extraction; valorization; waste disposal; waste-to-energy; electronic cigarette; incineration; tobacco | English | 2023 | 2023-03-01 | 10.1016/j.envres.2023.115217 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fabrication of copper molybdate nanoflower combined polymeric graphitic carbon nitride heterojunction for water depollution: Synergistic photocatalytic performance and mechanism insight | In the scope, developed a novel copper molybdate decorated polymeric graphitic carbon nitride (CuMoO4@g-C3N4 or CMC) heterojunction nanocomposite in an easy solvothermal environment for the first time. The synthesized CMC improved the photocatalytic degradation of an antibiotic drug [ciprofloxacin (CIP)] and organic dye [Rhodamine B (RhB)]. Consequently, the CMC demonstrates a marvelous crystalline nature with similar to 26 nm size, as obtained from XRD analysis. Besides, the surface morphology studies confirm the large-scale construction of flower-like CMC with a typical size of 10-15 nm. The CMC showed efficient catalytic activity for both the pollutants, achieving the degradation of 98% for RhB and 97% for CIP in 35 and 60 min, respectively. The reaction parameters including the concentration of pollutants, catalyst dosages, and scavengers are optimized for the best photocatalytic results. Notably, the trapping tests showed that the center dot OH and O-2(center dot-) radicals are the primary oxidative species liable for the photocatalytic process. The recyclability test of the photocatalyst infers that the photocatalyst is highly stable up to the fifth recycle. Our work affords an efficient and ideal path to constructing the new g-C3N4-based architected photocatalyst for toxic wastewater treatment in the near future. | Kasirajan, Prakash; Karunamoorthy, Saravanakumar; Velluchamy, Muthuraj; Subramaniam, Kalidass; Park, Chang Min; Sundaram, Ganesh Babu | PSR Engn Coll, Dept Chem, Sivakasi 626140, Tamil Nadu, India; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; VHNSN Coll Autonomous, Dept Chem, Virudunagar 626001, Tamil Nadu, India; Manonmaniam Sundaranar Univ, Dept Anim Sci, Thirunelveli 627012, Tamil Nadu, India; Vellore Inst Technol, Sch Adv Sci, Dept Chem, Vellore 632014, Tamil Nadu, India | Park, Chang Min/CAA-8506-2022; Kalidass, Subramaniam/AAE-9256-2020 | 7102320114; 57224299979; 57203214600; 55485179400; 57209588953; 47561371700 | prakashchemist88@gmail.com;muthuraj75@gmail.com;ganeshbabu.s@vit.ac.in; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 233 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 1.43 | 2025-06-25 | 9 | 12 | Polymeric g-C3N4; Ciprofloxacin; Rhodamine B; Photocatalyst; Visible light | COMPOSITE; NANOCOMPOSITE; G-C3N4; DEGRADATION; NANOSHEETS; CUMOO4 | Ciprofloxacin; Photocatalyst; Polymeric g-C<sub>3</sub>N<sub>4</sub>; Rhodamine B; Visible light | Ciprofloxacin; Copper; Environmental Pollutants; Polymers; Water; Antibiotics; Carbon nitride; Catalyst activity; Heterojunctions; Morphology; Organic pollutants; Rhodium compounds; Surface morphology; Toxic materials; Wastewater treatment; carbon; carcinogen; ciprofloxacin; copper derivative; graphite; molybdic acid; nanocomposite; nanoflower; polymer; rhodamine B; scavenger; copper; graphitic carbon nitride; molybdic acid; polymer; water; Ciprofloxacin; Copper molybdate; Depollution; Graphitic carbon nitrides; Photocatalytic performance; Polymeric g-C3N4; Rhodamine-B; Solvothermal; Synthesised; Visible light; antibiotics; catalyst; copper; degradation; nanocomposite; pollutant removal; wastewater treatment; X-ray diffraction; Article; catalysis; catalyst; chemical composition; crystal; degradation; nanofabrication; optics; particle size; photocatalysis; photodegradation; photoluminescence; recycling; structure analysis; surface property; synthesis; texture analysis; waste water management; water pollutant; X ray diffraction; pollutant; Photocatalytic activity | English | 2023 | 2023-09-15 | 10.1016/j.envres.2023.116428 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Identification and quantification of photodegradation products of disposed expanded polystyrene buoy used in aquaculture | This study investigated the chemicals extracted from an EPS buoy used in aquaculture, which were subsequently collected from a recycling center. It was observed that the chemicals generated upon photodegradation make disposed buoys more toxic. Analysis of the extracted chemicals revealed the presence of 37 compounds, with four compounds quantitatively determined. Further analysis showed that the quantity of compounds dissolved in seawater was significantly higher than the amount remaining on the buoy surface. Based on the assumption that the buoy was exposed to sunlight for a year, it was estimated that 14.44 mg of the four compounds dissolved into the ocean. Given that South Korea used over 7 million EPS buoys, photodegraded EPS buoys are expected to represent a significant source of potentially hazardous chemicals. | Lee, Seulgidaun; Alam, Md Badrul; Lee, Sang-Han; Jung, Maeng-Joon; Shim, Won Joon; Kim, Sunghwan | Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Korea Basic Sci Inst, Ctr Res Equipment, Biochem Anal Team, Cheongju 28119, South Korea; Kyungpook Natl Univ, Grad Sch, Dept Food Sci & Biotechnol, Daegu 41566, South Korea; Kyungpook Natl Univ, Food & Bioind Res Inst, Inner Beauty Antiaging Ctr, Daegu 41566, South Korea; Korea Inst Ocean Sci & Technol, Ecol Risk Res Dept, Geoje 53201, South Korea; Univ Sci & Technol, Dept Ocean Sci, Daejeon 34113, South Korea; Mass Spectrometry Converging Res Ctr, Daegu 41566, South Korea; Green Nano Mat Res Ctr, Daegu 41566, South Korea | ; Alam, Md Badrul/AFL-7668-2022; Kim, Sunghwan/HKN-9812-2023; Shim, Won Joon/B-8136-2009; Lee, Seung Eun/ABG-1607-2021 | 57200370629; 56706777100; 57221453703; 56291394700; 7006530146; 57203772967 | wjshim@kiost.ac.kr;sunghwank@knu.ac.kr; | MARINE POLLUTION BULLETIN | MAR POLLUT BULL | 0025-326X | 1879-3363 | 192 | SCIE | ENVIRONMENTAL SCIENCES;MARINE & FRESHWATER BIOLOGY | 2023 | 5.3 | 3.8 | 1.06 | 2025-06-25 | 6 | 6 | Photodegradation; Disposed buoy; Toxicity; Expanded polystyrene | MASS-SPECTRA; POLYMERS; BEACHES | Disposed buoy; Expanded polystyrene; Photodegradation; Toxicity | Aquaculture; Photolysis; Polystyrenes; Republic of Korea; Seawater; South Korea; Aquaculture; Polystyrenes; 4 hydroxyacetophenone; 4 hydroxybenzaldehyde; 4 hydroxybenzoic acid; disposed expanded polystyrene buoy; polystyrene; salicylic acid; unclassified drug; polystyrene derivative; sea water; Disposed buoy; Expanded polystyrene; Exposed to; Hazardous chemicals; Photo degradation; Photodegradation products; South Korea; aquaculture; photodegradation; quantitative analysis; recycling; seawater; toxicity; aquaculture; Article; cell viability; controlled study; cytotoxicity; HaCat cell line; human; human cell; limit of detection; limit of quantitation; liquid chromatography-mass spectrometry; MTT assay; photodegradation; photodegradation product; pollutant; sea; solid phase extraction; South Korea; sunlight; toxicity testing; ultraviolet radiation; water pollutant; aquaculture; chemistry; photolysis; Buoys | English | 2023 | 2023-07 | 10.1016/j.marpolbul.2023.114998 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Long-term prognosis and the need for histologic assessment of chronic hepatitis B in the serological immune-tolerant phase | Background/Aims: The histologic status of the immune-tolerant (IT) phase of chronic hepatitis B relative to long-term outcomes is unclear. This study aimed to discover how the serological criteria currently in use correspond to histologic criteria in determining the IT phase and indication for liver biopsy.Methods: Patients in the serological IT phase determined by positive hepatitis B e antigen, hepatitis B virus (HBV) DNA >= 106 IU/mL, and normal or minimally elevated alanine aminotransferase (ALT) <= 60 IU/L, who underwent liver biopsy at three different hospitals were included. The distribution of the histologic IT phase, defined as fibrosis of stage 1 or less and inflammation of grade 1 or less, was compared with that of the serological IT phase. The risk factors for the incidence of liver-related events, such as hepatocellular carcinoma, liver cirrhosis, liver transplantation, and death, were also analyzed.Results: Eighty-two (31.7%) out of 259 clinically suspected IT phase patients belonged to the histologic IT phase. Age over 35, high AST, and low albumin were useful for ruling out the histologic IT phase. Risk factors predicting liver-related events were age and significant fibrosis stage. There was no significant difference in the proportion of histologic IT phase and clinical prognosis between normal ALT and mildly elevated ALT groups. However, even in patients with normal ALT, age was an important factor in predicting the presence of the histologic IT phase.Conclusions: A significant number of patients who belonged to the serological IT phase were not in the histologic IT phase. Patients over 35 years and those with high AST, low albumin, and low HBV DNA levels were more likely to experience poor long-term clinical outcomes. Therefore, additional histologic assessment should be considered. | Yoo, Jeong-Ju; Park, Soo Young; Moon, Ji Eun; Lee, Yu Rim; Lee, Han Ah; Lee, Jieun; Kim, Young Seok; Seo, Yeon Seok; Kim, Sang Gyune | Soonchunhyang Univ, Dept Internal Med, Div Gastroenterol & Hepatol, Bucheon Hosp, Bucheon, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Dept Internal Med, Sch Med, Daegu, South Korea; Soonchunhyang Univ, Clin Trial Ctr, Dept Biostat, Bucheon Hosp, Bucheon, South Korea; Ewha Womans Univ, Coll Med, Dept Internal Med, Seoul, South Korea; Soonchunhyang Univ, Coll Med, Cheonan, South Korea; Korea Univ, Dept Internal Med, Coll Med, Seoul, South Korea; Soonchunhyang Univ, Digest Res Ctr, Dept Gastroenterol & Hepatol, Bucheon Hosp, 170 Jomaru Ro, Bucheon 14584, South Korea; Soonchunhyang Univ, Liver Clin, Bucheon Hosp, 170 Jomaru Ro, Bucheon 14584, Guam, South Korea; Korea Univ, Dept Gastroenterol & Hepatol, Dept Internal Med, Coll Med, 73 Goryeodae Ro, Seoul 02841, South Korea | ; Kim, Sang/AAI-5704-2020 | 55917322000; 57191674344; 57204470319; 57194094753; 57190980926; 57195946458; 57207444475; 35234912400; 35278042500 | drseo@korea.ac.kr;mcnulty@schmc.ac.kr; | CLINICAL AND MOLECULAR HEPATOLOGY | CLIN MOL HEPATOL | 2287-2728 | 2287-285X | 29 | 2 | SCIE | GASTROENTEROLOGY & HEPATOLOGY | 2023 | 14 | 3.8 | 2.41 | 2025-06-25 | 21 | 21 | Fibrosis; Biopsy; Hepatitis B virus | HEPATOCELLULAR-CARCINOMA; TRANSIENT ELASTOGRAPHY; NATURAL-HISTORY; VIRUS-DNA; RISK; DISEASE | Biopsy; Fibrosis; Hepatitis B virus | alanine aminotransferase; aspartate aminotransferase; hepatitis B(e) antigen; adult; Article; chronic hepatitis B; chronic liver disease; clinical assessment; computer assisted tomography; female; fibrosis; Hepatitis B virus; hepatitis C; hepatitis D; histology; human; human tissue; immunological tolerance; inflammation; liver biopsy; liver cell carcinoma; liver cirrhosis; liver transplantation; major clinical study; male; nuclear magnetic resonance imaging; prognosis; risk factor; serology; ultrasound | English | 2023 | 2023-04 | 10.3350/cmh.2022.0322 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Review | MXenes-Versatile 2D materials for identification of biomarkers and contaminants in large scale environments-A review | Recent years have seen a lot of interest in transition metal carbides/carbonitrides (MXenes), Which is one of newly proliferating two-dimensional (2D) materials.The advantages and applications of synthesizing MXenes-based biosensing systems are interesting. There is an urgent requirement for synthesis of MXenes. Through foliation, physical adsorption, and interface modification,it has been proposed that many biological disorders are related to genetic mutation. Majority of mutations were discovered to be nucleotide mismatches. Consequently, accurate-nucleotide mismatched discrimination is crucial for both diagnosing and treating diseases. To differ-entiate between such a sensitivealterations in the DNA duplex, several detection methods, particularly Electrochemical-luminescence (ECL) ones, have really been investigated.Mn+1XnTx is common name for MXenes, a novel family of two-dimensional (2D) transition metal carbides, nitrides, and carbonitrides, where T stands for interface termination units (i.e. = O, OH, and/or F). These electronic characteristics of MXenes may be changed between conductive to semiconducting due to abundant organometallic chemistry.Solid-state ECL sensors predicated on MXene would provide the facile nucleotide detection and convenience for usage with minimal training, mobility and possibly minimal cost.This study emphasizes upcoming requirements and possibilities in this area while describing the accomplishments achieved in the usage and employing of MXenes in the research and development of facile biomarkerdetection and their significance in designing electrochemical sensors. Op-portunities are addressed for creating 2D MXene materials sensors and devices with incorporated biomolecule sensing. MXenes Carry out this process sensors, address the advantages of using MXenes and their variants as detecting materials for gathering different types of data, and attempt to clarify the design principles and oper-ation of related MXene-based sensors, such as nucleotide detection, Single nucleotide detectors, Cancer thera-nostics, Biosensing capabilities, Gliotoxin detection, SARS-COV-2 nucleocapsid detection, electrochemical sensors, visual sensors, and humidity sensors. Finally, we examine the major issues and prospects for MXene-based materials used in various sensing applications. | Chandrasekar, Narendhar; Steffi, Alexander Pinky; Ramachandran, Balaji; Hwang, Michael Taeyoung; Faramarzi, Vahid; Govarthanan, Muthusamy | Gachon Univ, Dept BioNano Technol, 1342 Seongnam Daero, Seongnam Si 13120, Gyeonggi Do, South Korea; Sri Ramakrishna Engn Coll, Dept Nanosci & Technol, Coimbatore, Tamil Nadu, India; Koneru Lakshmaiah Educ Fdn, Dept Elect & Commun Engn, Vaddeswaram 522302, Andhra Pradesh, India; Tarbiat Modares Univ, Dept Elect & Comp Engn, Tehran 14115194, Iran; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea; Saveetha Dent Coll & Hosp, Saveetha Inst Med & Tech Sci, Dept Biomat, Chennai 600077, Tamil Nadu, India | Michael, Hwang/AAX-2382-2020; Chandrasekar, Dr. Narendhar/ABE-5592-2020; Govarthanan, Muthusamy/C-1491-2014; Ramachandran, Balaji/IWD-9651-2023; Muthusamy, Govarthanan/C-1491-2014 | 55749787700; 57221255959; 57212521326; 56430480600; 56741250500; 54881927600 | balajiyashik@gmail.com;anol81@gachon.ac.kr;gova.muthu@gmail.com; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 228 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 3.1 | 2025-06-25 | 20 | 26 | MXenes; 2d nanomaterials; Biosensors; SARS-COV-2 nucleocapsid sensors; Environmental pollutant detection | 2-DIMENSIONAL TI3C2 MXENES; RECENT PROGRESS; NANOSHEETS; INTERCALATION; EXFOLIATION; DEPENDENCE; COMPOSITE; CATHODE; SENSOR | 2d nanomaterials; Biosensors; Environmental pollutant detection; MXenes; SARS-COV-2 nucleocapsid sensors | Biomarkers; COVID-19; Humans; Nucleotides; SARS-CoV-2; double stranded DNA; gliotoxin; manganese; nucleotide; transition element; biological marker; MXene; biomarker; detection method; environmental fate; identification method; literature review; nanomaterial; pollutant removal; sensor; severe acute respiratory syndrome; aqueous solution; Article; cancer surgery; cell metabolism; chemical procedures; controlled study; density functional theory; DNA methylation; electric conductance; electric conductivity; environmental temperature; malignant neoplasm; materials science; molecular dynamics; nonhuman; photoluminescence; pollutant; quantum yield; Severe acute respiratory syndrome coronavirus 2; thermal conductivity; virus nucleocapsid; coronavirus disease 2019; human | English | 2023 | 2023-07-01 | 10.1016/j.envres.2023.115900 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Photocatalytic and electrocatalytic reduction of CO2 by MXene-based nanomaterials: A review | Recently, transition metal carbide or nitride (MXene)-based nanomaterials have been broadly investigated as new photocatalysts and electrocatalysts for the reduction of CO2 into valuable energy-rich fuels due to their unique properties such as rich surface chemistries, flexible morphologies, bandgap structures, considerable electrical conductivities, thermal stabilities, and significant specific surface areas. Nevertheless, only a few reviews have been reported on the application of MXenes or MXene-based nanomaterials as advanced photocatalysts and/or electrocatalysts for CO2 reduction, which do not cover new findings and the current development in the application of MXene-based nanomaterials for CO2 reduction. Accordingly, herein, we present a comprehensive review of current findings on the photocatalytic and electrocatalytic reduction of CO2 by various MXene-based nanomaterials. Particularly, this review focuses on the (i) photocatalytic reduction of CO2 by functionalized Ti3C2, TiO2/Ti3C2, g-C3N4/Ti3C2, and other/Ti3C2 catalysts, (ii) electrocatalytic CO2 reduction; (iii) CO2 reduction associated with photothermal catalysis and hydrogenation, and (iv) stability of MXene-based photoelectrocatalysts. Additionally, we have briefly explored the challenges in the large-scale fabrication of MXene-based nanomaterials and proposed the future research prospects of MXene-based nanomaterials. | Heo, Jiyong; Her, Namguk; Jang, Min; Park, Chang Min; Son, Ahjeong; Han, Jonghun; Yoon, Yeomin | Korea Army Acad Yeong Cheon, Dept Civil & Environm Engn, 495 Hogook Ro, Yeong Cheon 38900, Gyeongbuk, South Korea; Gwangju Inst Sci & Technol GIST, Int Environm Res Inst, Gwangju, South Korea; Kwangwoon Univ, Dept Environm Engn, Seoul, South Korea; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea; Ewha Womans Univ, Dept Environm Sci & Engn, Seoul, South Korea; Univ South Carolina, Dept Civil & Environm Engn, 300 Main St, Columbia, SC 29208 USA | Son, Ahjeong/AAV-7000-2021; Park, Chang Min/CAA-8506-2022; Jang, Min/M-6690-2018; Yoon, Yeomin/KDP-2253-2024; Jang, Min/J-2230-2012 | 42461338400; 6701721727; 36762550700; 57209588953; 23487252600; 59803784200; 7402126688 | phoenixvov@nate.com;yoony@cec.sc.edu; | CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY | CRIT REV ENV SCI TEC | 1064-3389 | 1547-6537 | 53 | 9 | SCIE | ENVIRONMENTAL SCIENCES | 2023 | 11.4 | 3.8 | 0.72 | 2025-06-25 | 20 | 18 | MXene-based catalysts; CO2 reduction; photocatalysis; electrocatalysis; Binoy Sarkar | IN-SITU GROWTH; LAYERED DOUBLE HYDROXIDES; TI3C2 MXENE; 2-DIMENSIONAL TITANIUM; ANATASE/RUTILE TIO2; CARBON-DIOXIDE; EFFICIENT; HETEROJUNCTION; NANOSHEETS; COCATALYST | Binoy Sarkar and Lena Q. Ma; CO<sub>2</sub> reduction; electrocatalysis; MXene-based catalysts; photocatalysis | Carbides; Carbon dioxide; Electrocatalysts; Electrolysis; Nanostructured materials; Photocatalysis; Surface chemistry; Titanium dioxide; Transition metals; carbon; carbon dioxide; nanomaterial; nitrogen; titanium carbide; titanium chloride; titanium dioxide; unclassified drug; 'current; Binoy sarkar; CO 2 reduction; Electrocatalytic reduction; Mxene-based catalyst; Photocatalytic reduction; Transition metal nitrides; Transition metals carbides; ]+ catalyst; catalysis; electrokinesis; reduction; research work; transition element; catalysis; electric conductivity; electrocatalysis; hydrogenation; photocatalysis; reduction (chemistry); Review; surface area; thermostability; Electrocatalysis | English | 2023 | 2023-05-03 | 10.1080/10643389.2022.2101857 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | Article | Regulating Surface Heterogeneity Maximizes Photovoltage and Operational Stability in Tin-Lead Perovskite Solar Cells | We present a surface reconstruction strategy for tin-lead perovskites, effectively addressing the issue of oxidized Sn fragments on surfaces and interfaces. Our surface treatment involving postfabrication iodide supplementation effectively regulates undesired surface binding states and reconstructs the compositional gradient. Through surface-sensitive and depth-resolved analysis, we unveil a strong correlation among surface compositional disorder, photovoltage, and operational stability in tin-lead perovskites. Surface-reconstructed perovskite films demonstrate improved carrier lifetime, reduced defect density, and higher recombination resistance compared with untreated films. As a result, devices utilizing surface-reconstructed perovskites exhibit remarkable performance with high power conversion efficiency (up to 23%) and open-circuit voltage (0.88 V), alongside enhanced operational stability compared to untreated counterparts. These insights into the surface vulnerabilities of mixed tin-lead perovskites, coupled with the underlying chemistry of surface passivation, pave the way for significant advancements in narrow-band gap perovskite solar cells. | Gunasekaran, Rajendra Kumar; Jung, Jina; Yang, Sung Woong; Im, Doyun; Choi, Won Chang; Yun, Yeonghun; Lee, Sangwook | Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Helmholtz Zentrum Berlin Mat & Energie GmbH, Dept Perovskite Tandem Solar Cells, D-12489 Berlin, Germany | Yun, Yeonghun/KRP-9208-2024; Gunasekaran, Rajendra Kumar/ISU-5759-2023; Lee, Sangwook/O-9166-2015 | wook2@knu.ac.kr; | ACS ENERGY LETTERS | ACS ENERGY LETT | 2380-8195 | 9 | 1 | SCIE | CHEMISTRY, PHYSICAL;ELECTROCHEMISTRY;ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY | 2023 | 19.5 | 3.8 | 16 | RESOURCE-ALLOCATION | English | 2023 | 2023-12-08 | 10.1021/acsenergylett.3c02402 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Article; Retracted Publication | RETRACTED: A study on the role of surface functional groups of metakaolin in the removal of methylene blue: Characterization, kinetics, modeling and RSM optimization (Retracted article. See vol. 267, 2025) | In this study, thermally activated kaolinite clay is explored as a suitable material for dye removal applications, which gave rise to highly reactive silica species in a broad range of aluminosilicate clusters. Multinuclear NMR studies described it as a short-range network in which Al sites in IV, V, and VI are coordinated, and Si is present mainly as Si(Q4(1Al)). Critical parameters for methylene blue (MB) were determined by the Placket Burman Design (PBD) as initial dye concentration, contact time, adsorbent dosage, pH and size. The % of MB removal studied after optimizing the parameters by central composite design (CCD), based on Response Surface Meth-odology, was found to be 90%. The adsorption kinetics and thermodynamics were systematically studied and reported by fitting them into different models. The maximum removal of the dye reached 97.8 mg/g according to the Freundlich isotherm, accomplished through chemisorption, following a pseudo-second-order reaction and the process is thermodynamically spontaneous and endothermic. The line spectrum of X-ray photoelectron spec-troscopy (XPS) shows the participation of Si, Al, O, Ca and Na of Metakaolin (AK) and nitrogen of MB in the adsorption process. The appropriate stabilization of the N atom of the chromophore on the Si and Al atom in AK resulting from the ionic interaction on the surface is established from an increase in the binding energy of Al and Si. A single bridging oxygen signal at 532.32eVcorresponding to AK after dye adsorption tends to form siloanol/ aluminol, and their interaction is lowered to 531.58eV. Regeneration of adsorbent after thermal treatment without loss of efficiency proved. | Karuppaiyan, Janani; Jeyalakshmi, R.; Kiruthika, S.; Wadaan, Mohammad Ahmad; Khan, Muhammad Farooq; Kim, Woog | SRM Inst Sci & Technol, Coll Engn & Technol, Dept Chem, Kattankulathur 603203, India; SRM Inst Sci & Technol, Coll Engn & Technol, Dept Chem Engn, Kattankulathur 603203, India; King Saud Univ, Coll Sci, Dept Zool, Riyadh 11451, Saudi Arabia; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea | Farooq, Muhammad/JXN-5140-2024; Wadaan, Mohammad/JLK-8900-2023; Farooq, Muhammad/G-9838-2013 | 58038459500; 55315686000; 56430997500; 15045991900; 59217155900; 58155870800 | jeyalakr@srmist.edu.in; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 226 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 1.19 | 2025-06-25 | 10 | 10 | Metakaolin; Methylene blue; Adsorption isotherms; RSM optimization; XPS analysis; Microscopic mechanism | ADSORPTION; KAOLIN; CLAY; GEOPOLYMERS; DYE | Adsorption isotherms; Metakaolin; Methylene blue; Microscopic mechanism; RSM optimization; XPS analysis | Adsorption; Hydrogen-Ion Concentration; Kinetics; Methylene Blue; Thermodynamics; Water Pollutants, Chemical; Adsorption; Adsorption isotherms; Aluminum; Aromatic compounds; Binding energy; Dyes; Kaolinite; Silica; Silicon; adsorbent; aluminum; aluminum silicate; calcium; kaolin; methylene blue; nitrogen; silicon; sodium; Kaolinite clay; Kinetic models; Metakaolins; Methylene Blue; Microscopic mechanisms; Model optimization; RSM optimization; Surface functional groups; Thermally activated; X-ray photoelectron spectroscopy analyse; adsorption; composite; dye; isotherm; kaolin; microscopy; optimization; adsorption kinetics; Article; central composite design; chemical composition; chemisorption; chromatophore; contact time; controlled study; decolorization; dihydroxylation; equilibrium constant; isotherm; nuclear magnetic resonance; particle size; pH; response surface method; thermodynamics; waste water management; X ray photoemission spectroscopy; adsorption; chemistry; kinetics; water pollutant; X ray photoelectron spectroscopy | English | 2023 | 2023-06-01 | 10.1016/j.envres.2023.115604 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article; Retracted Publication | RETRACTED: Bioremediations analysis using multifactorial porous materials derived from tea residue (Retracted article. See vol. 267, 2025) | Titanium dioxide nanoparticles (TiO2 NPs) are becoming more and more renowned as biocompatible nano -materials with diverse biological functions. In the present study, the aqueous extract of tea residue (tea filtered waste powder) was used to synthesize the TiO2 NPs and treated for effluent bioremediations. Maximum ab-sorption in the UV-Vis spectrum of the TiO2 NPs was seen at 358 nm, and the XRD pattern reveals peaks at 2 h values of 25.78, 38.24, 47.98, 54.76, 55.32, 62.64, 69.05, 70.15, 75.24, and 83.59 that may be indexed to the (101), (004), (200), (105), (211), (204), (116), (220), (215) and (303). The FT-IR spectra of TiO(2 )NPs showed a peak at 3420, 2925, 1621, 1382, 1098, and 687 cm-1. The spherical form and size were disclosed by FE-SEM analyses, and the EDAX pattern verified the purity of the TiO2 NPs. The average particles size of the TiO2 NPs was 32 nm. The photodegradation of paper mill waste water is significantly deteriorated up to 99.08% for 600 min, but textile waste water is degraded up to 98.06% for the same duration. Furthermore, we reported that TiO2 NPs may rapidly breakdown industrially hazardous effluents when exposed to sunshine. Overall, this new, straightforward, and environmentally beneficial strategy may be of interest to the management of efficient degradation of dye solutions in the polluted regions. | Kaliaperumal, Vimal; Subramaniyan, Vijayakumar; Renganathan, Sangeetha; Mohandoss, Nilavukkarasi; Hatamleh, Ashraf Atef; Alnafisi, Bassam Khalid; Kim, Woong; Subramaniyan, Prathipkumar | Bharathidasan Univ, AVVM Sri Pushpam Coll, PG & Res Dept Bot, Poondi, India; Bharathidasan Univ, AVVM Sri Pushpam Coll, PG & Res Dept Math, Poondi, India; King Saud Univ, Coll Sci, Dept Bot & Microbiol, POB 2455, Riyadh 11451, Saudi Arabia; Natl Inst Technol, Tiruchirappalli 620015, Tamil Nadu, India; Kyungpook Natl Univ, Dept Environm Engn, Daegu 41566, South Korea | Hatamleh, Ashraf/GQZ-8861-2022 | 57948633300; 14061369800; 57949486900; 57948762300; 55881612200; 57936260700; 55581636400; 57949372000 | svijaya_kumar2579@rediff.com; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 216 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 0.95 | 2025-06-25 | 7 | 8 | Green synthesis; TiO2 NPs; Tea residue; EffluentRemediation?s | WATER-TREATMENT; GREEN SYNTHESIS; NANOPARTICLES | Effluent Remediation's; Green synthesis; Tea residue; TiO<sub>2</sub> NPs | Biodegradation, Environmental; Plant Extracts; Porosity; Spectroscopy, Fourier Transform Infrared; Tea; Titanium; Waste Water; Absorption spectroscopy; Biocompatibility; Bioremediation; Biotechnology; Effluents; Particle size analysis; Porous materials; TiO2 nanoparticles; titanium dioxide nanoparticle; plant extract; titanium; titanium dioxide; Aqueous extracts; Biological functions; Effluent remediation; Green synthesis; Spectra's; Tea residue; TiO2 NP; Titanium dioxide nanoparticles; UV-Vis spectrum; XRD patterns; bioremediation; effluent; inorganic compound; nanoparticle; photodegradation; porous medium; tea; Article; bioremediation; controlled study; energy dispersive X ray spectroscopy; field emission scanning electron microscopy; Fourier transform infrared spectroscopy; irradiation; light absorption; photodegradation; porosity; pulp and paper mill wastewater; tea; waste water management; X ray diffraction; bioremediation; chemistry; infrared spectroscopy; porosity; tea; wastewater; Titanium dioxide | English | 2023 | 2023-01-01 | 10.1016/j.envres.2022.114634 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article; Retracted Publication | RETRACTED: Enhanced membraneless fuel cells by electrooxidation of ethylene glycol with a nanostructured cobalt metal catalyst (Retracted article. See vol. 280, 2025) | The advancement of effective and long-lasting electrocatalysts for energy storage devices is crucial to reduce the impact of the energy crisis. In this study, a two-stage reduction process was used to synthesize carbon-supported cobalt alloy nanocatalysts with varying atomic ratios of cobalt, nickel and iron. The formed alloy nanocatalysts were investigated using energy-dispersive X-ray spectroscopy, X-ray diffraction, and transmission electron mi-croscopy to determine their physicochemical characterization. According to XRD results, Cobalt-based alloy nanocatalysts form a face-centered cubic solid solution pattern, illustrating thoroughly mixed ternary metal solid solutions. Transmission electron micrographs also demonstrated that samples of carbon-based cobalt alloys displayed homogeneous dispersion at particle sizes ranging from 18 to 37 nm. Measurements of cyclic voltam-metry, linear sweep voltammetry, and chronoamperometry revealed that iron alloy samples exhibited much greater electrochemical activity than non-iron alloy samples. The alloy nanocatalysts were evaluated as anodes for the electrooxidation of ethylene glycol in a single membraneless fuel cell to assess their robustness and ef-ficiency at ambient temperature. Remarkably, in line with the results of cyclic voltammetry and chro-noamperometry, the single-cell test showed that the ternary anode works better than its counterparts. The significantly higher electrochemical activity was observed for alloy nanocatalysts containing iron than for non-iron alloy catalysts. Iron stimulates nickel sites to oxidize cobalt to cobalt oxyhydroxides at lower over-potentials, which contributes to the improved performance of ternary alloy catalysts containing iron. | Aarimuthu, Gayathri; Sathiasivan, Kiruthika; Varadharajan, Selvarani; Balakrishnan, Muthukumaran; Albeshr, Mohammed F.; Alrefaei, Abdulwahed Fahad; Kim, Woong | Univ Madras, Presidency Coll Autonomous, Dept Chem, Chennai 600005, India; SRM Inst Sci & Technol, Coll Engn & Technol, Dept Chem Engn, Chennai 603203, India; St Josephs Inst Technol, Dept Chem, Old Mamallapuram Rd, Chennai 600119, India; King Saud Univ, Coll Sci, Dept Zool, POB 2455, Riyadh 11451, Saudi Arabia; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea | Alrefaei, Abdulwahed/AAX-7443-2021; S, KIRUTHIKA/ABE-8631-2021; Selvarani, V/GMW-7523-2022; Farah, Mohammad/F-7972-2010 | 58482877000; 56430997500; 58483049100; 6603252722; 57202952715; 57207669967; 55581636400 | dr.muthukumaran@yahoo.com; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 233 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 0.31 | 2025-06-25 | 4 | 3 | Cobalt alloy nanocatalysts; Carbon support; Ethylene glycol; Electrooxidation; Membraneless fuel cell; Two-stage reduction process | ELECTROCHEMICAL CHARACTERIZATION; MAGNETIC-PROPERTIES; ETHANOL OXIDATION; OXYGEN EVOLUTION; CARBON SHELL; LOW-COST; PERFORMANCE; FE; METHANOL; ELECTROCATALYSTS | Carbon support; Cobalt alloy nanocatalysts; Electrooxidation; Ethylene glycol; Membraneless fuel cell; Two-stage reduction process | Alloys; Carbon; Cobalt; Ethylene Glycol; Nickel; Anodes; Chronoamperometry; Cobalt alloys; Cobalt compounds; Cyclic voltammetry; Electrocatalysts; Energy dispersive spectroscopy; Ethylene; Fuel economy; Iron alloys; Nanocatalysts; Nickel oxide; Polyols; Reduction; Solid solutions; cobalt; ethylene glycol; alloy; carbon; cobalt; nickel; Alloy catalyst; Carbon support; Cobalt alloy nanocatalyst; Electrochemical activities; Electrooxidations; Membraneless fuel cell; Metal catalyst; Nano-catalyst; Nano-structured; Two-stage reduction process; alloy; catalyst; chemical compound; detection method; electrochemical method; energy storage; ethylene; fuel cell; oxidation; solid solution; Article; catalyst; chronoamperometry; cyclic voltammetry; energy dispersive X ray spectroscopy; environmental temperature; linear sweep voltammetry; nonhuman; oxidation; particle size; transmission electron microscopy; X ray diffraction; Ethylene glycol | English | 2023 | 2023-09-15 | 10.1016/j.envres.2023.115601 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article; Retracted Publication | RETRACTED: Enhanced photocatalytic efficiencies in a bifunctional ZnO/PVA nanocomposites derived from Capparis zeylanica L. (Retracted article. See vol. 267, 2025) | The modern food sector demands versatile nanocomposites of polymers for food to wrappers to inactivate germs linked to foods in order to ensure quality throughout the packaging process. Recently, it has become quite appealing to use zinc oxide nanocomposite with polyvinyl alcohol (PVA) assistance for food storage containers. Variable combinations of zinc acetate and Capparis zeylanica leaf extract (3:1, 1:7, 1:3, and 1:1) were used to create nanostructured ZnO at the desired pH (10.5). ZnO/PVA nanocomposites films were created with different weight % of (16, 13, 9 and 5%) ZnO nanoparticles by using solution casting method. The generated ZnO and ZnO/PVA nanocomposites (NCs) were characterized using analytical techniques like X-ray diffraction spectroscopy (XRD), ultraviolet spectroscopic analysis (UV-Vis), Fourier-transform infrared analysis (FT-IR), and field emission scanning electron microscopic study (FE-SEM). The generated ZnO and ZnO/PVA NCs were tested for their efficacy as antibacterial agents against Gram + ve (Streptococcus pyogenes, Staphylococcus aureus) and Gram -ve (Pseudomonas aeruginosa, and E. coli) bacteria. Under UV-visible irradiation, the methylene blue (MB) breakdown caused by the fabricated undoped ZnO and ZnO/PVA nanomixture was investigated. The FE-SEM investigation for synthesized ZnO from a 1:1 ratio exhibited spherical shaped appearance. However, the nanocomposite made with 5% ZnO showed equally scattered nanoflake particles in the matrix of PVA film as well as on the surface. The XRD results showed that ZnO synthesized with a higher proportion of plant extract produced smaller crystallites, whereas ZnO synthesized with a lower percentage of plant extract produced bigger crystallite sizes. The optimum concentration for the breakdown of methylene blue (MB) among the various concentrations examined was 5% ZnO/PVA. Furthermore, a study of the biomedical efficiency of undoped ZnO and ZnO/PVA revealed that 5% ZnO/PVA had the potential antibacterial efficacies. | Subramaniyan, Prathipkumar; Subramaniyan, Vijayakumar; Renganathan, Sangeetha; Elavarasan, Vidhya; Al-Ansari, Mysoon M.; Aldawsari, Majdoleen; Kala, Praseetha Prabhakaran; Kim, Woong | SRM Inst Sci & Technol, Nanotechnol Res Ctr, Chennai, India; Bharathidasan Univ, AVVM Sri Pushpam Coll Autonomous, PG & Res Dept Bot, Tiruchirappalli 613503, Poondi, India; Bharathidasan Univ, AVVM Sri Pushpam Coll Autonomous, Dept Math, Tiruchirappalli 613503, Poondi, India; King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh 11451, Saudi Arabia; Noorul Islam Ctr Higher Educ, Dept Nanotechnol, Thuckalay, Tamilnadu, India; Kyungpook Natl Univ, Dept Environm Engn, Daegu, South Korea | Al-Ansari, Mysoon/K-1915-2013 | 57949372000; 14061369800; 57949486900; 57998183200; 55266071800; 58088505100; 57862186400; 55581636400 | svijaya_kumar2579@rediff.com; | ENVIRONMENTAL RESEARCH | ENVIRON RES | 0013-9351 | 1096-0953 | 233 | SCIE | ENVIRONMENTAL SCIENCES;PUBLIC, ENVIRONMENTAL & OCCUPATIONAL HEALTH | 2023 | 7.7 | 3.8 | 0.72 | 2025-06-25 | 6 | 7 | Nanocomposites; Green synthesis; Capparis zeylanica; Antibacterial; ZnO; PVA; Photodegradation | ZNO NANOPARTICLES; DEGRADATION; FILM | Antibacterial; Capparis zeylanica; Green synthesis; Nanocomposites; Photodegradation; ZnO/PVA | Anti-Bacterial Agents; Capparis; Escherichia coli; Methylene Blue; Nanocomposites; Plant Extracts; Polyvinyl Alcohol; Spectroscopy, Fourier Transform Infrared; X-Ray Diffraction; Zinc Oxide; Aromatic compounds; Efficiency; Escherichia coli; Nanocomposite films; Particle size analysis; Polyvinyl alcohols; Scanning electron microscopy; Spectroscopic analysis; Ultraviolet spectroscopy; X ray diffraction; ZnO nanoparticles; antiinfective agent; methylene blue; nanocomposite; nanoflake; plant extract; polyvinyl alcohol; zinc acetate; zinc oxide nanoparticle; antiinfective agent; polyvinyl alcohol; zinc oxide; Antibacterials; Cappari zeylanica; Field emission scanning; Green synthesis; Microscopic study; Photo degradation; Scanning electron microscopic; Synthesised; X-ray diffraction spectroscopy; ZnO/polyvinyl alcohol; acetate; antimicrobial activity; bacterium; food storage; nanocomposite; nanoparticle; photodegradation; plant extract; analytic method; antibacterial activity; aqueous solution; Article; biosynthesis; Capparis; Capparis zeylanica; Escherichia coli; field emission scanning electron microscopy; food packaging; food storage; Fourier transform infrared spectroscopy; molecular weight; nonhuman; pH; photocatalysis; photodegradation; plant leaf; precipitation; Pseudomonas aeruginosa; Staphylococcus aureus; Streptococcus pyogenes; ultraviolet spectroscopy; X ray diffraction; chemistry; II-VI semiconductors | English | 2023 | 2023-09-15 | 10.1016/j.envres.2023.116482 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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