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| ○ | ○ | Article | Superior outcomes and high-risk features with carfilzomib, lenalidomide, and dexamethasone combination therapy for patients with relapsed and refractory multiple myeloma: results of the multicenter KMMWP2201 study | Carfilzomib, lenalidomide, and dexamethasone (KRd) combination therapy improves the survival of patients with relapsed and/or refractory multiple myeloma (RRMM). Nonetheless, evidence on the use of KRd in Asian populations remains scarce. Accordingly, this study aimed to investigate this regimen's efficacy in a large group of patients. This retrospective study included patients with RRMM who were treated with KRd at 21 centers between February 2018 and October 2020. Overall, 364 patients were included (median age, 63 years). The overall response rate was 90% in response-evaluable patients, including 69% who achieved a very good partial response or deeper responses. With a median follow-up duration of 34.8 months, the median progression-free survival (PFS) was 23.4 months and overall survival (OS) was 59.5 months. Among adverse factors affecting PFS, high-risk cytogenetics, extramedullary disease, and doubling of monoclonal protein within 2-3 months prior to start of KRd treatment significantly decreased PFS and OS in multivariate analyses. Patients who underwent post-KRd stem cell transplantation (i.e., delayed transplant) showed prolonged PFS and OS. Grade 3 or higher adverse events (AE) were observed in 56% of the patients, and non-fatal or fatal AE that resulted in discontinuation of KRd were reported in 7% and 2% of patients, respectively. Cardiovascular toxicity was comparable to that reported in the ASPIRE study. In summary, KRd was effective in a large, real-world cohort of patients with RRMM with long-term follow-up. These findings may further inform treatment choices in the treatment of patients with RRMM. | Lee, Ji Hyun; Choi, Jimin; Min, Chang-Ki; Park, Sung-Soo; Jo, Jae-Cheol; Lee, Yoo Jin; Kim, Jin Seok; Eom, Hyeon-Seok; Jung, Jongheon; Moon, Joon Ho; Cho, Hee Jeong; Lee, Myung-won; Yoon, Sung-Soo; Byun, Ja Min; Lee, Jae Hoon; Lee, Je-Jung; Jung, Sung-Hoon; Shin, Ho-Jin; Kim, Do Young; Yi, Jun Ho; Lee, Seung-Shin; Do, Young Rok; Yoon, Dok Hyun; Cho, Hyungwoo; Lee, Won Sik; Lee, Ho Sup; Uhm, Jieun; Kim, Hyo Jung; Jang, Hee Ryeong; Kim, Sung-Hyun; Kim, Kihyun | Dong A Univ, Coll Med, Dept Internal Med, Div Hematol Oncol, Busan, South Korea; Dong A Univ, Coll Business Adm, Dept Management Informat Syst, Busan, South Korea; Catholic Univ Korea, Seoul St Marys Hematol Hosp, Coll Med, Dept Internal Med,Hematol, Seoul, South Korea; Univ Ulsan, Coll Med, Ulsan Univ Hosp, Dept Internal Med, Ulsan, South Korea; Yonsei Univ, Coll Med, Severance Hosp, Dept Internal Med, Seoul, South Korea; Natl Canc Ctr, Dept Hematol Oncol, Ctr Hematol Malignancy, Goyang, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Hematol Oncol, Daegu, South Korea; Chungnam Natl Univ Hosp, Dept Internal Med, Div Hematol & Oncol, Daejeon, South Korea; Seoul Natl Univ, Coll Med, Seoul Natl Univ Hosp, Dept Internal Med,Div Hematol Oncol, Seoul, South Korea; Gachon Univ, Gil Med Ctr, Coll Med, Div Hematol, Incheon, South Korea; Chonnam Natl Univ, Hwasun Hosp, Dept Hematol Oncol, Med Sch, Hwasun, Jeollanam Do, South Korea; Pusan Natl Univ Hosp, Div Hematol Oncol, Dept Internal Med, Busan, South Korea; Chung Ang Univ, Dept Med, Div Hematol Oncol, Seoul, South Korea; Wonkwang Univ Hosp, Dept Hematol Oncol, Iksan, South Korea; Keimyung Univ, Dongsan Med Ctr, Dept Hematooncol, Daegu 700712, South Korea; Univ Ulsan, Coll Med, Asan Med Ctr, Dept Oncol, Seoul, South Korea; Inje Univ, Busan Paik Hosp, Dept Internal Med, Busan, South Korea; Kosin Univ, Coll Med, Dept Internal Med, Busan, South Korea; Hanyang Univ, Hanyang Univ Hosp, Coll Med, Div Hematol & Oncol,Dept Internal Med, Seoul, South Korea; Hallym Univ, Med Ctr, Coll Med, Dept Hematol Oncol, Anyang, South Korea; Kangwon Natl Univ Hosp, Nephrol, Chuncheon Si, Gangwon Do, South Korea; Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Div Hematol Oncol,Dept Med, Seoul, South Korea | Yi, Jun Ho/GXZ-8144-2022; Byun, Ja/AAI-2125-2020; Park, Young Sik/MBG-1896-2025; KIM, JIN/I-6927-2019; Kim, Dong/F-4608-2014; Kim, Kihyun/D-5175-2013; Jo, Jae-Cheol/CAE-9453-2022 | 56813113800; 59643625200; 57224962914; 57043695200; 35818309200; 57188669696; 59089202100; 35268272400; 57195917971; 56568642700; 57216754907; 55890002700; 7404036304; 57191727590; 56013463700; 7601478211; 55511978300; 16239868400; 57206099586; 24339940900; 55773608600; 8960168300; 57225086458; 57217354312; 55556573100; 57218103550; 13605753400; 7410139194; 56697794700; 56547959500; 57199440300 | kshmoon@dau.ac.kr;kihyunkimk@gmail.com; | HAEMATOLOGICA | HAEMATOLOGICA | 0390-6078 | 1592-8721 | 109 | 11 | SCIE | HEMATOLOGY | 2024 | 7.9 | 10.7 | 0.37 | 2025-05-07 | 1 | 1 | STEM-CELL TRANSPLANTATION; OPEN-LABEL; POMALIDOMIDE; PHASE-3; DARATUMUMAB | Adult; Aged; Aged, 80 and over; Antineoplastic Combined Chemotherapy Protocols; Dexamethasone; Drug Resistance, Neoplasm; Female; Humans; Lenalidomide; Male; Middle Aged; Multiple Myeloma; Oligopeptides; Recurrence; Retrospective Studies; Treatment Outcome; bortezomib; carfilzomib; creatinine; cyclophosphamide; dexamethasone; immunoglobulin A; immunoglobulin G; immunoglobulin M; lenalidomide; thalidomide; antineoplastic agent; carfilzomib; dexamethasone; lenalidomide; oligopeptide; adult; aged; Article; autologous stem cell transplantation; bone marrow; cytogenetics; drug efficacy; drug safety; female; fluorescence in situ hybridization; follow up; human; hypercalcemia; in situ hybridization; maintenance therapy; major clinical study; male; multicenter study; multiple myeloma; myeloma; neutrophil count; overall survival; plasma cell leukemia; plasmacytoma; platelet count; progression free survival; prospective study; retrospective study; risk factor; survival rate; thrombocyte transfusion; clinical trial; drug resistance; drug therapy; middle aged; mortality; recurrent disease; treatment outcome; very elderly | English | 2024 | 2024-11 | 10.3324/haematol.2024.285534 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | 2D/2D Schottky-type hybrid heterocatalyst comprising S-doped g-C3N4 and delaminated Ti3C2 MXene: Synergistic interplay of dual strategies for effective H2 generation and pollutant degradation | The quest for sustainable solutions to environmental pollution and energy scarcity has prompted the exploration of advanced photocatalytic materials. This study introduces an efficient 2D/2D Schottky-type hybrid heterocatalyst that combines sulfur-doped 2D g-C3N4 (SCN) with delaminated 2D Ti3C2 (TC) MXene, designed for effective H2 generation and antibiotic pollutant degradation under visible light. This hybrid system leverages the synergistic interplay of two strategies: electronic band structure engineering and conductive TC MXene cocatalyst integration, addressing the critical limitations inherent in g-C3N4. The TC-4/SCN hybrid, with its optimized TC content, exhibits exceptional photocatalytic performance, achieving an H2 production yield of 79.5 mu mol over 5 h and an apparent quantum efficiency of 9.2 %. Moreover, this hybrid demonstrates significant effectiveness in degrading and mineralizing the antibiotic levofloxacin, surpassing g-C3N4, SCN, other TC/SCN hybrids, and several advanced photocatalysts previously reported. Detailed characterization and mechanistic investigations attribute the outstanding photocatalytic activity to efficient charge transfer, separation, reduced recombination rates, strong optical absorption, and a large specific surface area, all of which are facilitated by the dual strategies employed in creating the 2D/2D Schottky-type heterojunction. Furthermore, reusability tests confirmed the durability and stability of the TC-4/SCN, highlighting its practical applicability for repeated use in environmental and energy applications. | Lee, Dong-Eun; Jyothirmai, M. V.; Mameda, Naresh; Jo, Wan-Kuen; Tonda, Surendar | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Indian Inst Technol Kanpur, Dept Chem Engn, Kanpur 208016, India; Koneru Lakshmaiah Educ Fdn, Dept Chem, Guntur 522302, Andhra Pradesh, India | Jo, Wan/AAO-5329-2020; Mameda, Dr. Naresh/AAV-2711-2020; Mameda, Naresh/AAV-2711-2020; Mullapudi, Jyothirmai/P-8931-2019; Tonda, Surendar/AAO-3358-2020 | 56605563300; 57203092766; 57192214360; 7103322277; 56114866900 | wkjo@knu.ac.kr;surendar.t86@gmail.com; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 669 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 1.29 | 2025-05-07 | 5 | 5 | g-C3N4; Ti3C2 MXene; Band structure engineering; 2D/2D Schottky-type heterojunction; H-2 generation; Antibiotic degradation | GRAPHITIC CARBON NITRIDE; ELECTRONIC-STRUCTURE; ANTIBIOTIC LEVOFLOXACIN; LIGHT; HETEROJUNCTION; NITROGEN; PHOTODEGRADATION; PHOTOCATALYSIS; FABRICATION; GRAPHENE | 2D/2D Schottky-type heterojunction; Antibiotic degradation; Band structure engineering; g-C<sub>3</sub>N<sub>4</sub>; H<sub>2</sub> generation; Ti<sub>3</sub>C<sub>2</sub> MXene | Band structure; Charge transfer; Durability; Heterojunctions; Hybrid systems; Hydrogen production; Light absorption; Photocatalytic activity; Reusability; 2d/2d schottky-type heterojunction; Antibiotic degradation; Band structure engineering; G-C3N4; H2 generation; Pollutant degradation; S-doped; Schottky; Sustainable solution; Ti3C2 mxene; Antibiotics | English | 2024 | 2024-10-01 | 10.1016/j.apsusc.2024.160516 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | A hierarchical 3D hybrid CoAl-layered double hydroxide/TiO2/Ti3C2 MXene S-scheme photocatalyst with 2D/0D/2D contact interfaces for sustainable pollutant degradation | Environmental pollution, particularly that derived from waterborne antibiotics, is a rising concern because of its detrimental effects on aquatic ecosystems and human health. Hence, in this study, we present a hierarchical 3D-structured hybrid photocatalyst comprising a CoAl-layered double hydroxide (LDH), TiO2, and Ti3C2 MXene synthesized using an in situ hydrothermal method. Various characterization techniques revealed that the hybrid CoAl-LDH/TiO2/Ti3C2 photocatalyst exhibited improved optical absorption, and the tailored 2D/0D/2D contact interfaces among the constituents enhanced charge migration and minimized electron-hole recombination. The results of electron paramagnetic resonance and in situ-irradiated X-ray photoelectron spectroscopy analyses confirmed that the hybrid photocatalyst follows an S-scheme mechanism that not only promotes the separation of photoinduced electron-hole pairs but also preserves their robust redox capability. The amalgamation of the three components resulted in synergistic advantages. Consequently, the optimized CoAl-LDH/TiO2/Ti3C2 photo-catalyst exhibited remarkable performance in degrading and mineralizing the antibiotic diclofenac sodium (DFS) and the dyes rhodamine B and indigo carmine, surpassing its constituents and previously reported photo-catalysts. Furthermore, the hybrid retained high efficiency across multiple cycles, underscoring its potential reusability. Therefore, this study demonstrates the potential of the developed hybrid photocatalyst for sustain-able water treatment, thereby fostering cleaner aqueous environments. | Lee, Dong-Eun; Mameda, Naresh; Devthade, Vidyasagar; Jo, Wan-Kuen; Tonda, Surendar | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Koneru Lakshmaiah Educ Fdn, Dept Chem, Guntur 522302, Andhra Pradesh, India; Indian Inst Technol Hyderabad IITH, Dept Chem, Kandi 502285, Telangana, India | Mameda, Naresh/AAV-2711-2020; Mameda, Dr. Naresh/AAV-2711-2020; Jo, Wan/AAO-5329-2020; Vidyasagar, Devthade/O-3930-2015; Tonda, Surendar/AAO-3358-2020 | 56605563300; 57192214360; 57201674442; 7103322277; 56114866900 | surendar.t86@gmail.com; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 649 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 5.15 | 2025-05-07 | 19 | 19 | Layered double hydroxide; MXene; S-scheme mechanism; Pollutant degradation; Environmental remediation | DOUBLE HYDROXIDE; WATER-TREATMENT; EFFICIENT; HETEROJUNCTION; TI3C2; CO2; REDUCTION; TIO2; NANOCOMPOSITES; PERFORMANCE | Environmental remediation; Layered double hydroxide; MXene; Pollutant degradation; S-scheme mechanism | Antibiotics; Aquatic ecosystems; Coal; Light absorption; Paramagnetic resonance; Reusability; Sustainable development; Water pollution; Water treatment; X ray photoelectron spectroscopy; Co/Al layered double hydroxide; Contact interface; Ecosystem health; Environmental pollutions; Environmental remediation; Hybrid photocatalysts; Layered-double hydroxides; Mxene; Pollutant degradation; S-scheme mechanism; Titanium dioxide | English | 2024 | 2024-03-15 | 10.1016/j.apsusc.2023.159178 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Attending veterinarians improve the research capability and psychological well-being of researchers in animal research institutes | The use of laboratory animals in biomedical research has significantly advanced scientific understanding, yet it raises ethical concerns about animal welfare and the mental health of researchers Recent research has highlighted the potential for stress and compassion fatigue among researchers working with distressed animals. Attending veterinarians (AVs) are crucial in mitigating the pain and stress experienced by animals and, by extension, researchers. However, the impact of AVs on researchers' psychological well-being remains understudied. This study explores how AVs contribute to researchers' research capability and psychological well-being in animal research institutions. AVs oversee animal housing, health, and welfare; their involvement is mandated or strongly recommended in developed countries. AVs enhance animal welfare by ensuring proper housing, nutrition, and social interaction. They monitor animal health, educate researchers on pain assessment, and promote compliance with post-surgical care. AVs also contribute to researchers' well-being by addressing euthanasia procedures, which can be emotionally challenging. Programs for rehoming animals after experiments offer an alternative to euthanasia and positively impact researchers' psychological well-being. Moreover, AVs promote workplace well-being by fostering positive workplace cultures, offering peer counseling, and providing social support. Programs considering animal welfare and researchers' emotions are crucial for a healthy research environment. In conclusion, AVs are essential in balancing scientific progress with animal welfare and researchers' psychological well-being. Therefore, their role should be recognized as vital in achieving social equity that considers the welfare of humans and laboratory animals. | Lee, Ji Min; Lee, Gwang-Hoon; Kim, KilSoo | Seoul Natl Univ, Res Eth Team, Seoul, South Korea; Daegu Gyeongbuk Med Innovat Fdn, Preclin Res Ctr, Daegu, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Toxicol, Daegu, South Korea | ; Lee, GwangHoon/KHU-9790-2024; Lee, Ji Min/KCZ-2783-2024 | ghl@kmedihub.re.kr;kskim728@knu.ac.kr; | FRONTIERS IN VETERINARY SCIENCE | FRONT VET SCI | 2297-1769 | 10 | SCIE | VETERINARY SCIENCES | 2024 | 2.9 | 10.9 | 2 | attending veterinarians; professional quality of life; animal welfare; care-killing paradox; animal research | ENVIRONMENTAL ENRICHMENT; LABORATORY-ANIMALS; HOUSING CONDITIONS; CARE; BEHAVIOR; WELFARE; STRESS; IMPACT; REGULATIONS; GUIDELINES | English | 2024 | 2024-01-05 | 10.3389/fvets.2023.1340225 | 바로가기 | 바로가기 | 바로가기 | |||||||||||
| ○ | ○ | Article | Boronic acid conjugated polyacrylate coating: A strategy for material-independent surface functionalization | Most biomaterial surfaces are non-functional, which inevitably requires additional functionalization steps. However, these steps are typically material-dependent; only a few limited methods, such as catechol functionalization using polydopamine coating, have been reported as material-independent for surface modification. In this study, we developed a one-step boronic acid surface functionalization method utilizing a polyacrylate that contains both butyl and boronic acid groups. The butyl group exhibits strong interfacial adhesion due to its low glass transition temperature (Tg), which maintains its softness and tackiness, thereby facilitating attachment to various substrates. Meanwhile, the boronic acid acts as a functional group for surface modification. Various substrates, including polymers, metals, and ceramics widely used in implants, were successfully coated with the polyacrylate, bestowing boronic acid functionality on the surface. Given that boronic acid is one of the most widely applied functional groups in the biomaterials field, we anticipate that our methodology will be applicable in developing various biomedical applications such as antifouling coatings, biosensors, and bioadhesives. | Kang, Jumi; Kim, Yuejin; Park, Hyeona; Lee, Kyueui | Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Basic Sci, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU LAMP Res Ctr, Daegu 41566, South Korea; Kyungpook Natl Univ Hosp, Biomed Res Inst, Daegu 41940, South Korea | Lee, Kyueui/ACR-8902-2022; Lee, Kyueui/P-8152-2018 | 58003581400; 57966884600; 57213039681; 56404800600 | kyueui@knu.ac.kr; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 657 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 0.97 | 2025-05-07 | 4 | 4 | Surface functionalization; Boronic acid -functionalization; Polyacrylate; Coating; Antifouling surface | PRESSURE-SENSITIVE ADHESIVES; CHEMISTRY; FILMS | Antifouling surface; Boronic acid–functionalization; Coating; Polyacrylate; Surface functionalization | Functional polymers; Glass transition; Plastic coatings; Polymeric implants; Antifouling surfaces; Biomaterial surfaces; Boronic acid; Boronic acid–functionalization; Functionalizations; Non-functional; Polyacrylate coatings; Surface Functionalization; Surface-modification; Various substrates; Medical applications | English | 2024 | 2024-06-01 | 10.1016/j.apsusc.2024.159793 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Case report: Echocardiographic and computed tomographic features of congenital bronchoesophageal artery hypertrophy and fistula in a dog | Introduction Studies on aberrant bronchoesophageal arteries are limited. Herein, we report a case of a multi-origin systemic-to-pulmonary shunt with suspected bronchoesophageal artery hypertrophy and fistula in a dog.Case report A 4-year-old castrated male beagle weighing 11 kg underwent routine medical screening. Physical examination revealed a right-sided continuous murmur of grades 1-2. Thoracic radiography revealed a mild cardiomegaly. Echocardiography revealed a continuous turbulent shunt flow distal to the right pulmonary artery (RPA) branch from the right parasternal short axis pulmonary artery view. Computed tomography demonstrated systemic-to-pulmonary shunts originating from the descending aorta at the level of T7-8, the right 5th and 6th dorsal intercostal arteries, and the right brachiocephalic trunk, which formed anomalous networks around the trachea and esophagus that anastomosed into a large tortuous vessel at the level of T6-7 and entered the RPA. Surgical ligation of multiple shunting vessels was performed. Postoperative echocardiography and computed tomography showed decreased left ventricular volume overload and markedly decreased size of the varices. Additionally, most of the shunting vessels were without residual shunt flow.Conclusion The present study provides information regarding imaging features and the successful surgical management of multiple systemic-to-pulmonary shunts originating from the descending aorta, right brachiocephalic trunk, and intercostal arteries and terminating at the RPA. Multimodal imaging features after surgical ligation have also been described. | Ji, Yewon; Kang, Jinsu; Heo, Suyoung; Lee, Kichang; Yoon, Hakyoung | Jeonbuk Natl Univ, Coll Vet Med, Dept Vet Med Imaging, Iksan, South Korea; Kyungpook Natl Univ, Coll Vet Med, Dept Vet Surg, Daegu, South Korea; Jeonbuk Natl Univ, Coll Vet Med, Dept Surg, Iksan, South Korea; Jeonbuk Natl Univ, Biosafety Res Inst, Iksan, South Korea; Jeonbuk Natl Univ, Coll Vet Med, Iksan, South Korea | Kang, Jinsu/HIK-3619-2022 | 57964022100; 57193611330; 12804256700; 7501513678; 57198835711 | hyyoon@jbnu.ac.kr; | FRONTIERS IN VETERINARY SCIENCE | FRONT VET SCI | 2297-1769 | 11 | SCIE | VETERINARY SCIENCES | 2024 | 2.9 | 10.9 | 0 | 2025-04-16 | 0 | 0 | aortopulmonary shunt; aberrant bronchoesophageal artery; esophageal varices; cardiovascular anomaly; canine | PATENT DUCTUS-ARTERIOSUS; AORTOPULMONARY SEPTAL-DEFECT; PULMONARY-ARTERY; ABERRANT BRANCH; WINDOW; HEART | aberrant bronchoesophageal artery; aortopulmonary shunt; canine; cardiovascular anomaly; esophageal varices | butophan; butorphanol; cefazolin; freefol mct; iodine; iohexol; isoflurane; ketamine; lidocaine; midazolam; polypropylene; propofol; provive 1%; sevoflurane; sevofran; anastomosis; artery ligation; Article; beagle; brachiocephalic trunk; bronchus disease; cardiomegaly; case report; castrated male; clinical article; clinical feature; computer assisted tomography; congenital bronchoesophageal artery fistula; congenital bronchoesophageal artery hypertrophy; descending aorta; disease severity; echocardiography; esophagus; esophagus disease; esophagus varices; heart left ventricle overload; heart murmur; human; mass screening; medical history; nonhuman; physical examination; postoperative period; right pulmonary artery; systemic pulmonary shunt; thorax radiography; trachea; turbulent flow | English | 2024 | 2024-05-22 | 10.3389/fvets.2024.1400076 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Case report: Omphalitis caused by Trueperella pyogenes infection in a Korean indigenous calf | Omphalitis, commonly caused by opportunistic bacteria has been significantly associated with morbidity and mortality in neonatal calves. Trueperella pyogenes is a commensal and opportunistic pathogen that can cause suppurative infection in farm animals. Our case involved a 10-day-old female Korean indigenous calf that presented with umbilical enlargement accompanied by a greenish-yellow purulent discharge and right forelimb lameness. The calf was diagnosed with failure of passive transfer at 24 h of age. Physical examination found hypothermia (38.1 degrees C), tachycardia (110 beats/min), tachypnea (47 cycles/min), and open mouth breathing. Ultrasonography revealed hyperechoic pus in the 9th and 10th right intercostals, for which a liver abscess due to omphalophlebitis was suspected. After 3 days, the calf died. T. pyogenes was detected in the umbilical cord, lung, liver, kidney, intestine, mesenteric lymph node, urinary bladder, and bladder ligament. All genes related to the virulent factors (i.e., plo, cbpA, fimA, fimC, fimG, nanH, and nanP) were also identified, with plo and fimA being associated with pathogenicity. A final diagnosis of omphalitis was established based on the identification of virulent T. pyogenes and umbilical cord dilatation on ultrasonography. Antimicrobial susceptibility tests showed that the isolated T. pyogenes was susceptible to amoxicillin, ceftiofur, florfenicol, enrofloxacin, ofloxacin, and ciprofloxacin, suggesting the suitability of these antibiotics for treating T. pyogenes-induced omphalitis. Hence, accurate and rapid diagnosis of the involved bacteria and antimicrobial susceptibility patterns can help guide therapeutic decisions. Our case provides useful information that could aid large animal clinicians in the diagnosis and treatment of T. pyogenes-induced omphalitis. | Kim, Youngjun; Ji, Min-Jeong; Park, Jinho; Choi, Kyoung-Seong | Natl Agr Cooperat Federat, Dept Anim Hosp, Hanwoo Korean Indigenous Cattle Genet Improvement, Seosan, South Korea; Jeonbuk Natl Univ, Coll Vet Med, Dept Vet Internal Med, Iksan, South Korea; Kyungpook Natl Univ, Coll Ecol & Environm Sci, Dept Anim Sci & Biotechnol, Sangju, South Korea | 58845436500; 58209693600; 8730126700; 7403949556 | kschoi3@knu.ac.kr; | FRONTIERS IN VETERINARY SCIENCE | FRONT VET SCI | 2297-1769 | 11 | SCIE | VETERINARY SCIENCES | 2024 | 2.9 | 10.9 | 0 | 2025-04-16 | 0 | 0 | Trueperella pyogenes; omphalitis; failure of passive transfer; antimicrobial susceptibility patterns; Korean indigenous calf | RISK-FACTORS; DAIRY-COWS; RESISTANCE; CALVES; MORTALITY; FOALS | antimicrobial susceptibility patterns; failure of passive transfer; Korean indigenous calf; omphalitis; Trueperella pyogenes | amoxicillin; ceftiofur; ciprofloxacin; clindamycin; enrofloxacin; erythromycin; florfenicol; lincomycin; ofloxacin; penicillin derivative; penicillin G; protein; antibiotic sensitivity; Article; artificial milk; auscultation; bladder; breathing rate; calf (bovine); echography; female; Gram positive bacterium; heart rate; hypothermia; intestine; kidney; liver; liver abscess; lung; mesentery lymph node; nonhuman; nucleotide sequence; omphalitis; pathogenicity; phylogeny; physical examination; tachycardia; tachypnea; Trueperella pyogenes; umbilical cord; umbilical vein; virulence | English | 2024 | 2024-05-30 | 10.3389/fvets.2024.1362352 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Development of 2D/2D h-MoO 3 /Ag/g-C 3 N 4 heterojunction photocatalyst with enhanced photocatalytic performance for the detoxification of methylene blue and tetracycline under solar light illumination | In this study, direct thermal polycondensation, hydrothermal, and ultrasonic techniques were used to fabricate photocatalysts consisting of bare g-C 3 N 4 (GCN), h-MoO 3 (MoO 3 ), MoO 3 /g-C 3 N 4 (MGCN), and MoO 3 /Ag/g-C 3 N 4 (MAGCN) composites. These methods were used to improve the photocatalytic effect, especially for environmental applications. The surface and chemical properties of the fabricated samples were investigated by XRD, FT-IR, FE-SEM, HR-TEM, UV -DRS, XPS, and PL analysis. Bare and composite photocatalysts were tested for photodegradation of the methylene blue (MB) dye and tetracycline (TC) antibiotic under solar irradiation. The MAGCN composite material exhibits remarkable efficiency in degrading 99 % of MB dye and 90 % of TC antibiotic within a time frame of 60 min when exposed to sunlight irradiation. The degradation rate constants (k) of MB and TC in the most active MAGCN photocatalyst were 11.02 and 7.03 times higher than those of pristine GCN, respectively. The scavenger reaction shows that the most important reactive species in the photocatalytic process are superoxide and photogenerated holes. The outstanding photocatalytic efficiency of the MAGCN catalyst was demonstrated by the fact that Ag nanoparticles act as mediators of fast charge transfer, resulting in higher absorption of sunlight, enhanced charge separation/transfer, and regeneration by MoO 3 and GCN. The MAGCN photocatalyst exhibits remarkable activity, maintains its performance over six consecutive reaction cycles, and exhibits excellent stability and reusability. Intermediates were analyzed by GC -MS, and suitable degradation pathways were proposed. These results enable the development of an effective Z -scheme heterojunction photocatalyst and facilitate its wide application in the degradation of organic pollutants in wastewater. | Kumaravel, Sakthivel; Lee, Dae Sung; Niyitanga, Theophile; Kaliyamoorthy, Selvam; Hasan, Imran; Balu, Krishnakumar | Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan 38541, South Korea; Piping Technol & Prod Inc, POB 34506, Houston, TX 77234 USA; King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia; Saveetha Inst Med & Tech Sci SIMATS, Saveetha Sch Engn, Chennai 602105, Tamil Nadu, India; Univ Seville, Dept Ingn & Ciencia Mat & Transporte, ETS Ingn, Avda Camino Descubrimientos S-N, Seville 41092, Spain | Selvam, Kaliyamoorthy/F-9226-2014; Niyitanga, Theophile/GLQ-7732-2022; Hasan, Imran/AAA-5370-2021; KUMARAVEL, SAKTHIVEL/KBC-0974-2024; Kaliyamoorthy, Selvam/F-9226-2014; Balu, Krishnakumar/H-9038-2019 | 57212580936; 55568524907; 57195354646; 8609890700; 56734228500; 22235198500 | daesung@knu.ac.kr;t.niyitanga@yu.ac.kr;kbalu@us.es; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 994 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2024 | 6.3 | 10.9 | 2.08 | 2025-05-07 | 7 | 7 | Wastewater treatment; Degradation; Photocatalysts; Methylene Blue; Tetracycline | DEGRADATION; REMOVAL; CARBON; ANTIBIOTICS; OZONATION; COMPOSITE | Degradation; Methylene Blue; MoO<sub>3</sub>/Ag/g-C<sub>3</sub>N<sub>4</sub>; Photocatalysts; Tetracycline; Wastewater treatment | Antibiotics; Aromatic compounds; Detoxification; Efficiency; Heterojunctions; Organic pollutants; Photodegradation; Rate constants; Reusability; Silver nanoparticles; Thermal conductivity; Wastewater treatment; Light illumination; Methylene Blue; Methylene blue dye; MoO 3; MoO3/ag/g-C3N4; Photocatalytic performance; Solar light; Tetracycline; Tetracycline antibiotics; Thermal polycondensation; Irradiation | English | 2024 | 2024-08-05 | 10.1016/j.jallcom.2024.174666 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Effect of forging routes on the microstructure and mechanical properties of newly-developed Ti-44Al-5.5Nb-0.5W-0.5Cr-0.3Si-0.1C alloys | In this study, the effects of forging routes on the microstructure and tensile properties of Ti-44Al-5.5 Nb-0.5 W0.5Cr-0.3Si-0.1 C (at%) alloys was comparatively investigated. Results showed that the bare ingot forged at 1400 degrees C (BH) exhibited refined lamellar colonies with narrow lamellar spacing. In contrast, dynamic recrystallized gamma grains and lamellar structure with thick lamellar spacing formed in the canned sample deformed at 1320 degrees C (CA). In addition, the heat-treated BH -HT sample showed fully recrystallized texture, while the lamellar structure in the CA -HT presented a preferred orientation, i.e., lamellar interfaces were parallel to rolling direction (RD). The mechanical properties of the CA -HT sample test results showed superior room-temperature ductility of 1.68 % and tensile strength of 515 MPa at 950 degrees C due to the lamellar orientation alignment to tensile direction. According to the temperature drop calculation results, both BH and CA forging routes exhibited rapid cooling rates. The initial microstructure at the pre-heating temperature was maintained until a hot deformation sequence was initiated. Therefore, the BH route could be performed in the alpha+ beta region, while the CA route could be carried out in the alpha-forging condition with the {110} gamma texture. | Park, Ji-Sung; Yang, Guang; Kim, Seong-Woong | Korea Inst Mat Sci KIMS, Titanium Dept, Chang Won 51508, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Shaanxi Univ Sci & Technol, Coll Mech & Elect Engn, Xian 710021, Shaanxi, Peoples R China | , Do Hyang Kim/J-6575-2012 | 57879257100; 57210311606; 7601591610 | yangguang@sust.edu.cn;mrbass@kims.re.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 992 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2024 | 6.3 | 10.9 | 0.69 | 2025-05-07 | 2 | 2 | TiAl intermetallics; Insulation; Thermomechanical treatment; Lamellar orientation; Mechanical property | TWINNED PST CRYSTALS; DYNAMIC RECRYSTALLIZATION; TIAL ALLOYS; HIGH NB; LAMELLAR STRUCTURES; CREEP-BEHAVIOR; HOT; DEFORMATION; EVOLUTION; DESIGN | Insulation; Lamellar orientation; Mechanical property; Thermomechanical treatment; TiAl intermetallics | Aluminum alloys; Binary alloys; Forging; Heating temperature; Intermetallics; Niobium alloys; Recrystallization (metallurgy); Silicon alloys; Tensile strength; Textures; Titanium alloys; Lamellar interfaces; Lamellar orientations; Lamellar spacing; Microstructures and mechanical properties; Orientation alignments; Preferred orientations; Recrystallized textures; Rolling direction; Room-temperature ductility; Ti-al intermetallics; Lamellar structures | English | 2024 | 2024-07-15 | 10.1016/j.jallcom.2024.174442 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Emerging flat bands and spin polarization in nanodiamond island superlattices with varying carrier effective masses | For the first time, a set of regular 2D sp2/sp3 hybrid superlattices of nanodiamond islands confined between two graphene sheets (NDI-c2G) were proposed and explored using Density Functional Theory Periodic Boundary Conditions simulations. The fusion involves coronene and ovalene molecules with top and bottom graphene lattices, which can be treated with electron beam irradiation and atomic hydrogen at the nanodiamond site in three different configurations: (11 1)CD, (000 1)HD, and (2110)HD. This creates distorted sp3 nanodiamond sublattices within the sp2 graphene fragments, serving as regions with confined electrons, making the charge carriers' effective masses heavier. The presence of spin-splitting valence spin-up and conduction spin-down flat bands near the Fermi level in cubic ((11 1)CD-I and (111)CD-II) and hexagonal ((2110)HD)-II) superlattices resulted in magnetic moments of 3.99 mu B, 3.99 mu B, and 1.99 mu B per unit cell, respectively. Various configurations significantly impacted their electronic properties, resulting in spin-polarized and non-spin-polarized systems with flat bands near the Fermi level, exhibiting a semiconducting nature. The averaged spin moments per carbon atom were 0.16 mu B, 0.14 mu B, and 0.08 mu B, localized at the sp2/sp3 interfaces of the nanodiamond sites. Analysis of the electronic states, band structure, charge carrier effective masses, and spin density distribution suggests NDIc2G shares similar electronic nature to strongly correlated twisted bilayer graphenes at small magic angles. | Oyeniyi, G. T.; Melchakova, Iu. A.; Engelgardt, D. R.; Tchaikovskaya, O. N.; Avramov, P. V. | Kyungpook Natl Univ, Dept Chem, 80 Daehak Ro, Daegu 41566, South Korea; ITMO Univ, Sch Phys & Engn, St Petersburg 197101, Russia; Tomsk State Univ, Dept Phys, Tomsk 634050, Russia | Tchaikovskaya, Olga/O-6715-2014; Melchakova, Iuliia/KGM-5967-2024 | 57737965200; 57206720228; 59152547900; 57997675500; 7004322420 | paul.veniaminovich@knu.ac.kr; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 672 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 0.32 | 2025-05-07 | 1 | 1 | Graphene; Nanodiamond; Spin polarization; Hybrid nanoallotrope; Cubic and hexagonal lattices; Effective masses | BILAYER GRAPHENE; MOTT INSULATOR; STRAIN; STATES; SUPERCONDUCTIVITY; ELECTRON; DEFECTS; CARBON; FILMS; HALL | Cubic and hexagonal lattices; Effective masses; Graphene; Hybrid nanoallotrope; Nanodiamond; Spin polarization | Cadmium compounds; Charge carriers; Density functional theory; Electronic properties; Fermi level; Magnetic moments; Nanodiamonds; Spin polarization; Band polarization; Carrier effective mass; Cubic lattice; Density-functional-theory; Effective mass; Flat band; Graphene sheets; Hexagonal lattice; Hybrid nanoallotrope; Spin-polarization; Graphene | English | 2024 | 2024-11-01 | 10.1016/j.apsusc.2024.160825 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Engineering hierarchical TiO2/ZnIn2S4 hybrid heterostructure with synergistic interfaces: A dual-functional S-scheme photocatalyst for efficient CO2 reduction and norfloxacin degradation | The development of multifunctional photocatalysts that can harness solar energy for both environmental remediation and energy generation is a considerable challenge in achieving sustainable development. This study introduces a dual-functional S-scheme hybrid catalyst comprising hierarchical 3D flower-like ZnIn2S4 (ZIS) microspheres embedded with TiO2 (TO) nanoparticles, synthesized via a facile in situ hydrothermal process. The unique structural and compositional synergy between ZIS and TO leverages their complementary photocatalytic properties, facilitating efficient solar energy utilization, increasing specific surface area, and enhancing CO2 adsorption capabilities. The S-scheme mechanism, confirmed by in situ-irradiated X-ray photoelectron spectroscopy and electron spin resonance spectroscopy, underlying this system promotes effective separation of photoexcited charge carriers while preserving the intrinsic strong reducibility of ZIS and high oxidizability of TO. These beneficial properties of the TO/ZIS hybrid provide a robust platform for CH4 production (75.6 mu mol h- 1 g- 1) through selective (99.6 %) CO2 reduction over competing water reduction and achieve exceptional degradation and mineralization of the persistent antibiotic norfloxacin in water, addressing both energy and environmental challenges. Furthermore, the hybrid catalyst exhibits significant stability and recyclability, maintaining high catalytic performance across multiple cycles, thereby underscoring its practical viability. This work offers a promising blueprint for developing multifunctional photocatalysts capable of addressing critical global challenges, demonstrating the potential of hierarchical nanostructures and S-scheme charge transfer mechanisms. | Lee, Dong-Eun; Abraham, B. Moses; Moru, Satyanarayana; Devthade, Vidyasagar; Jo, Wan-Kuen; Tonda, Surendar | Kyungpook Natl Univ, Sch Architecture Civil Environm & Energy Engn, 80 Daehak Ro, Daegu 41566, South Korea; Univ Barcelona, Dept Ciencia Mat & Quim Fis, C Marti i Franques 1-11, Barcelona 08028, Spain; Univ Barcelona, Inst Quim Teor & Computac IQTCUB, C Marti i Franques 1-11, Barcelona 08028, Spain; VIT AP Univ, Sch Adv Sci, Amaravati 522237, Andhra Pradesh, India; Korea Inst Energy Technol KENTECH, KENTECH Inst Environm & Climate Technol, Naju 58330, South Korea | Tonda, Surendar/AAO-3358-2020; Bokinala, Moses Abraham/T-9727-2018; Jo, Wan/AAO-5329-2020; Moru, Satyanarayana/AAF-3189-2021; Vidyasagar, Devthade/O-3930-2015; MORU, SATYANARAYANA/AAF-3189-2021 | 56605563300; 59339085600; 58562229700; 57201674442; 7103322277; 56114866900 | wkjo@knu.ac.kr;surendart@knu.ac.kr; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 1009 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2024 | 6.3 | 10.9 | 0.35 | 2025-05-07 | 3 | 3 | TiO2; Dual-function photocatalyst; S-scheme mechanism; Antibiotic degradation | HETEROJUNCTION; DESIGN | Antibiotic degradation; CO<sub>2</sub> reduction; Dual-function photocatalyst; S-scheme mechanism; TiO<sub>2</sub>; ZnIn<sub>2</sub>S<sub>4</sub> | Carbon capture and utilization; Direct air capture; Phosphorus compounds; Photocatalytic activity; Photodegradation; Selenium compounds; Sustainable development; X ray photoelectron spectroscopy; Antibiotic degradation; CO 2 reduction; Dual function; Dual-function photocatalyst; Energy; Functionals; Multifunctionals; Norfloxacin; S-scheme mechanism; TiO 2; Electron spin resonance spectroscopy | English | 2024 | 2024-12-25 | 10.1016/j.jallcom.2024.176881 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Fabrication of Z-scheme Fe2O3/g-C3N4 nanocomposite with improved visible light induced photodegradation of pharmaceutical pollutants and photoelectrochemical water oxidation | The photodegradation and photoelectrochemical performance of Fe2O3 catalyst is an encouraging visible-light induced catalyst owing to its less harmfulness, cheap and ecofriendly. However, owing to its quick charge carriers recombination rate and less lifespan of charge carriers obstructs its catalyst application. Therefore, it has been lately established that the construction of heterojunction with other semiconductor might be a possible method to improve its catalytic activity. Herein, a novel Z-scheme Fe2O3/g-C3N4 heterostructure catalyst has been synthesized by a simple hydrothermal technique and studied its photoelectrochemical and photodegradation activity. The addition of g-C3N4 greatly improves the light absorption ability light, reduced charge recombination rate and progress the charge transportation. The composite catalyst exhibited the superior photodegradation performance (97.8 %) of sulfamethoxazole antibiotic remedy within 30 min of visible light illumination. center dot OH and center dot O-2(-) radicals show a key role for dye degradation activity, and proposed a possible photodegradation charge carrier transfer mechanism based on a potential band structures of composite catalyst. Furthermore, the prepared catalysts are further used to examine the photoelectrochemical properties for hydrogen generation. The Fe2O3/g-C3N4 nanocomposite photoelectrode exhibited enriched photocurrent density (0.764 mA/cm(2)) than g-C3N4 (0.271 mA/cm(2)) and Fe2O3 (0.370 mA/cm(2)) photoelectrodes, which similar to 2.8 and similar to 2.1 folds greater photocurrent density than pure photoelectrodes. Electrochemical impedance spectroscopy analysis revealed that the composite electrode has minimal charge transfer resistance and greater electron transfer ability. Therefore, the current study presents a facile formation of Z-scheme catalyst and offers a sustainable method to eradicate water impurities and hydrogen generation by renewable solar energy. | Wang, Rui; Dai, Aijia; Vijayalakshmi, Mule; Reddy, Kakarla Raghava; Tang, Hui; Cheolho, Bai; Shim, Jaesool; Reddy, Ch. Venkata | Yeungnam Univ, Sch Engn, Gyongsan 712749, South Korea; Kyungpook Natl Univ, Coll Humanities, 80 Daehak Ro, Daegu 41566, South Korea; Univ Sydney, Sch Chem & Biomol Engn, Sydney, NSW 2006, Australia; Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Peoples R China | ; Reddy, Ch/P-5010-2017; Kakarla, Raghava Reddy/AAZ-9856-2021 | 57995728600; 59300477800; 58511539400; 13611741600; 23486856000; 57190660386; 16040548500; 55665734600 | chbai@yu.ac.kr;jshim@ynu.ac.kr;cvrphy@gmail.com; | JOURNAL OF ALLOYS AND COMPOUNDS | J ALLOY COMPD | 0925-8388 | 1873-4669 | 1005 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, MULTIDISCIPLINARY;METALLURGY & METALLURGICAL ENGINEERING | 2024 | 6.3 | 10.9 | 2.77 | 2025-05-07 | 11 | 12 | G-C 3 N 4 /Fe 2 O 3 composite; Photodegradation; Photoelectrochemical; Z -scheme | PHOTOCATALYTIC DEGRADATION; HYDROGEN-PRODUCTION; CHARGE-TRANSFER; SULFAMETHOXAZOLE; COMPOSITE; ALPHA-FE2O3; EFFICIENT; G-C3N4; IRON; XPS | G-C<sub>3</sub>N<sub>4</sub>/Fe<sub>2</sub>O<sub>3</sub> composite; Photodegradation; Photoelectrochemical; Z-scheme | Atomic emission spectroscopy; Bioremediation; Carrier lifetime; Carrier transport; Layered semiconductors; Photocatalysts; Photodegradation; Solar power generation; Composite catalysts; G-C3N4/fe2O3 composite; Hydrogen generations; Photo degradation; Photoelectrochemicals; Photoelectrode; Recombination rate; Visible light induced; Z-scheme; ]+ catalyst; Heterojunctions | English | 2024 | 2024-11-15 | 10.1016/j.jallcom.2024.176086 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Flexible, cuttable, origami-enabling ceramic nanofiber mat for visible light-driven catalysts | Despite possessing abundant potential, the brittleness of oxide ceramic nanofibers limits their use in self-standing flexible photocatalysts with easy separation/recycling and customized shaping. Here, we have reported a novel flexible ceramic constructed using electrospinning of metal oxide nanofiber mats of two different phases (CeO2-TiO2 [CTO]) with controllable composition. Although pure TiO2 and CeO2 nanofibers are too brittle to endure bending, CTO nanofibers show enhanced mechanical properties that make them flexible, bendable, cuttable, and origami-enabled. To study mechanical resilience and nanofiber structures, we have made a series of CTO nanofiber mats with different ratios of TiO2 and CeO2. The results reveal that the heterogeneous TiO2 and CeO2 interface creates stress transfer pathways, while the amorphous TiO2 phase absorbs stress. The CTO nanofiber mats can act as an efficient photocatalyst for the degradation of organic pollutants under visible light. The photocatalytic activity of the oxide ceramic mats is closely related to energy band positions and Ce3+ content. The decrease in the band gap of the CTO nanofiber mats enables the absorption of visible light, and the conduction band is positioned adequately to produce oxygen radicals via electron transfer. Consequently, the efficient degradation of organic pollutants can be achieved in the presence of the CTO nanofiber mat under visible light. Furthermore, the CTO nanofiber mats are coated with other metal oxides to form p-n junction band structures, which facilitate the separation of holes and electrons, resulting in even higher catalytic activity. | Seo, Ho Jun; Im, Eunmi; Myung, Yoon; Min, Yuho; Hyun, Dong Choon; Moon, Geon Dae | Korea Inst Ind Technol, Dongnam Div, Busan 46938, South Korea; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Mat Sci & Engn, Daegu 41566, South Korea; Inst Energy & Climate Res Fundamental Electrochem, D-52428 Julich, Germany | 57199231315; 57209220408; 23971466900; 36782804100; 15834575400; 23489708500 | dong.hyun@knu.ac.kr;gmoon@kitech.re.kr; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 643 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 1.29 | 2025-05-07 | 5 | 5 | Flexible ceramic nanofiber; Ceria; Titania; Electrospinning; Visible-light responsive photocatalyst | PHOTOCATALYTIC DEGRADATION; WATER; TIO2; CEO2; NANOSHEETS; MEMBRANES; CERIA | Ceria; Electrospinning; Flexible ceramic nanofiber; Titania; Visible-light responsive photocatalyst | Catalyst activity; Cerium oxide; Electrospinning; Energy gap; Fracture mechanics; Free radical reactions; Nanofibers; Organic pollutants; Photocatalytic activity; CeO 2; Ceramic nanofibers; Flexible ceramic nanofiber; Flexible ceramics; Nanofiber mats; Oxide ceramics; TiO 2; Titania; Visible light; Visible-light responsive photocatalysts; Titanium dioxide | English | 2024 | 2024-01-15 | 10.1016/j.apsusc.2023.158711 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | High-detectivity silver telluride nanoparticle-based near-infrared photodetectors functionalized with surface-plasmonic gold nanoparticles | Herein, the performance of near-infrared (NIR) photodetectors fabricated through a combination of AgxTe films comprising colloidal AgxTe nanoparticles (NPs) with plasmonic Au NPs was investigated. The surface-plasmonic Au NPs on low-bandgap AgxTe considerably enhanced the detectivity of NIR photodetectors. The Au NPs formed on the AgxTe surface triggered localized surface-plasmon resonance and increased light absorption, hot-carrier injection, and silver telluride crystallinity during an additional annealing process, which was required to form Au NPs from thermally deposited thin Au layers. Under illumination using an 808-nm laser, the detectivity of the as-fabricated Au NP-decorated AgxTe photodetectors was 7.17 x 1011 cmHz1/2 W-1. Compared with that of pristine AgxTe photodetectors, the detectivity of the prepared photodetectors was seven-fold higher; this detectivity was superior to those of devices based on MoS2, arsenic phosphorus, and SnTe nanoplates and commercial photosensors at room temperature. Thus, the proposed strategy of combining AgxTe films with surface-plasmonic Au NPs for enhanced performance of NIR photodetectors provides a new approach for realizing next-generation optoelectronic devices for detection in the NIR region. | Lee, Won-Yong; Lee, Junhee; Kwon, Hyuk-Jun; Kim, Kwangeun; Kang, Hongki; Jang, Jaewon | Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Inst Elect Technol, Daegu 41566, South Korea; Daegu Gyeongbuk Inst Sci & Technol, Dept Elect Engn & Comp Sci, Daegu 42988, South Korea; Korea Aerosp Univ, Sch Elect & Informat Engn, Goyang 10540, South Korea | Kang, Hongki/AFM-2155-2022 | 57209527128; 57364964200; 57298892000; 36004977500; 36158223200; 57194107504 | hkang@dgist.ac.kr;j1jang@knu.ac.kr; | APPLIED SURFACE SCIENCE | APPL SURF SCI | 0169-4332 | 1873-5584 | 654 | SCIE | CHEMISTRY, PHYSICAL;MATERIALS SCIENCE, COATINGS & FILMS;PHYSICS, APPLIED;PHYSICS, CONDENSED MATTER | 2024 | 6.9 | 10.9 | 1.29 | 2025-05-07 | 4 | 4 | Near-infrared; Photodetectors; Au nanoparticles; Surface plasmonic; AgxTe | ENHANCEMENT; ULTRAVIOLET; ABSORPTION | Ag<sub>x</sub>Te; Au nanoparticles; Near-infrared; Photodetectors; Surface plasmonic | Crystallinity; Gold deposits; Gold nanoparticles; Hot carriers; Infrared devices; IV-VI semiconductors; Layered semiconductors; Molybdenum compounds; Photons; Plasmonic nanoparticles; Plasmonics; Tellurium compounds; Tin compounds; Agxte; Au nanoparticle; Detectivity; Functionalized; Near Infrared; Near infrared photodetectors; Near-infrared; Performance; Plasmonics; Surface plasmonic; Photodetectors | English | 2024 | 2024-05-01 | 10.1016/j.apsusc.2024.159563 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Identifying risk clusters for African swine fever in Korea by developing statistical models | Introduction African swine fever (ASF) is a disease with a high mortality rate and high transmissibility. Identifying high-risk clusters and understanding the transmission characteristics of ASF in advance are essential for preventing its spread in a short period of time. This study investigated the spatial and temporal heterogeneity of ASF in the Republic of Korea by analyzing surveillance data on wild boar carcasses.Methods We observed a distinct annual propagation pattern, with the occurrence of ASF-infected carcasses trending southward over time. We developed a rank-based statistical model to evaluate risk by estimating the average weekly number of carcasses per district over time, allowing us to analyze and identify risk clusters of ASF. We conducted an analysis to identify risk clusters for two distinct periods, Late 2022 and Early 2023, utilizing data from ASF-infected carcasses. To address the underestimation of risk and observation error due to incomplete surveillance data, we estimated the number of ASF-infected individuals and accounted for observation error via different surveillance intensities.Results As a result, in Late 2022, the risk clusters identified by observed and estimated number of ASF-infected carcasses were almost identical, particularly in the northwestern Gyeongbuk region, north Chungbuk region, and southwestern Gangwon region. In Early 2023, we observed a similar pattern with numerous risk clusters identified in the same regions as in Late 2022.Discussion This approach enhances our understanding of ASF spatial dynamics. Additionally, it contributes to the epidemiology and study of animal infectious diseases by highlighting areas requiring urgent and focused intervention. By providing crucial data for the targeted allocation of resources for disease management and preventive measures, our findings lay vital groundwork for improving ASF management strategies, ultimately aiding in the containment and control of this devastating disease. | Ko, Kyeong Tae; Oh, Janghun; Son, Changdae; Choi, Yongin; Lee, Hyojung | Kyungpook Natl Univ, Dept Stat, Daegu, South Korea; Natl Inst Math Sci, Busan Ctr Med Math, Daejeon, South Korea | Choi, Yongin/GSD-3776-2022 | 59221437200; 59251295500; 59222274400; 57204844522; 57196021198 | yichoi27@gmail.com;hjlee@knu.ac.kr; | FRONTIERS IN VETERINARY SCIENCE | FRONT VET SCI | 2297-1769 | 11 | SCIE | VETERINARY SCIENCES | 2024 | 2.9 | 10.9 | 0 | 2025-05-07 | 0 | 0 | African swine fever; spatial dynamics; temporal heterogeneity; generalized linear model; statistical modeling; risk clusters | African swine fever; generalized linear model; risk clusters; spatial dynamics; statistical modeling; temporal heterogeneity | African swine fever; Article; carcass; cluster analysis; disease surveillance; epidemic; European wild boar; generalized linear model; geographic distribution; infection risk; latitude; longitude; nonhuman; probability; risk assessment; seasonal variation; South Korea; spatial analysis; spatiotemporal analysis; standard deviation ellipse analysis; statistical error; statistical model; trend study; virus transmission | English | 2024 | 2024-07-24 | 10.3389/fvets.2024.1416862 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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