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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
○ ○ Article ⓘ Ileal Digestibility and Total Tract Retention of Phosphorus in Inorganic Phosphates Fed to Broiler Chickens Using the Direct Method ⓘ Simple Summary There is limited information on the phosphorus (P) utilization of inorganic phosphates determined using the direct method in broiler chickens. The present study aimed to determine the ileal digestibility and total tract retention of P in several inorganic phosphates in broiler chickens using the direct method. No interaction was observed between the P source and the collection site (ileal digestibility vs. total tract retention). Phosphorus utilization differed among inorganic phosphates, and the ileal digestibility of P was greater than the total tract retention. Based on the current findings, different P utilization values should be applied to each inorganic phosphate. The objective of this study was to determine and compare the phosphorus (P) utilization of inorganic phosphates fed to broiler chickens using the direct method. On day 15 of age, six hundred forty 15-day-old male Ross 308 broiler chickens (initial body weight = 399 +/- 38 g) were assigned to five experimental diets with 16 birds per cage in a randomized complete block design. The experimental diets consisted of four semi-purified diets containing monocalcium phosphate, monodicalcium phosphate, dicalcium phosphate, and tricalcium phosphate as the sole P sources. Additionally, a P-free diet was prepared to measure basal endogenous P loss. Chromic oxide was added to the experimental diets as an indigestible index. Excreta were collected per cage on days 17 to 18 of age, and all birds were asphyxiated with carbon dioxide on day 19 of age for ileal digesta collection. The cage was an experimental unit, and the number of replications per each treatment was eight except for the tricalcium phosphate treatment (n = 4). There was no interaction observed between the P source and the collection site (ileal digestibility vs. total tract retention). Phosphorus utilization differed (p < 0.05) among inorganic phosphates and the ileal digestibility of P was greater (p < 0.05) than the total tract retention. In conclusion, the standardized ileal digestibility of P in inorganic phosphates ranged from 56.7% to 89.8% and ileal digestibility was greater than the total tract retention. ⓘ An, Su Hyun; Sung, Jung Yeol; Kong, Changsu ⓘ Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju 37224, South Korea; Purdue Univ, Dept Anim Sci, W Lafayette, IN 47907 USA; Kyungpook Natl Univ, Dept Anim Sci, Sangju 37224, South Korea ⓘ 안, 수현/JFK-5079-2023 ⓘ 57216974969; 57209716557; 36027521600 ⓘ woobi89@gmail.com;sung73@purdue.edu;changsukong@knu.ac.kr; ⓘ ANIMALS ⓘ ANIMALS-BASEL ⓘ 2076-2615 10 11 SCIE AGRICULTURE, DAIRY & ANIMAL SCIENCE;VETERINARY SCIENCES ⓘ 2020 2.752 12.7 1.7 2025-06-25 ⓘ 17 17 phosphorus; direct method; ileal digestibility; inorganic phosphates; total tract retention; broilers ⓘ AMINO-ACID DIGESTIBILITY; RELATIVE BIOAVAILABILITY; PHYTATE PHOSPHORUS; MICROBIAL PHYTASE; SOYBEAN-MEAL; BONE MEAL; POULTRY; FEED; CORN; DIET ⓘ Broilers; Direct method; Ileal digestibility; Inorganic phosphates; Phosphorus; Total tract retention ⓘ alpha tocopherol; ascorbic acid; calcium phosphate; calcium phosphate dibasic; carbon dioxide; folic acid; glycine; leucine; lysine; nitrogen; phosphate; phosphorus; pyridoxine; riboflavin; valine; zinc sulfate; Article; body weight; broiler; chemical analysis; chicken; diet supplementation; digestion; experimental diet; food intake; ileum; nonhuman; particle size; soybean meal ⓘ English 2020 2020-11 10.3390/ani10112167 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Monitoring and Characteristics of Major Mastitis Pathogens from Bulk Tank Milk in Korea ⓘ Simple Summary The monitoring of milk quality and the presence of major mastitis pathogens is an important part of milk quality assurance program. Bulk tank milk has been used in many countries to identify multiple milk quality problems and mastitis pathogens that might exist in a dairy herd. This study aimed to compare the presence of mastitis pathogens and the antimicrobial resistance of the isolates from bulk tank milk by dairy companies. The results showed that the prevalence of mastitis pathogens and the antimicrobial resistance of the isolates were significantly different among factories, and support the development of strong monitoring and prevention programs in dairy operations. In many countries, bulk tank milk (BTM) has been used for examining milk and analyzed as an important part of milk quality assurance programs. The objectives of this study were to investigate milk quality and the presence of major mastitis pathogens in BTM, and to compare the characteristics of BTM by dairy factory or company. A total of 1588 batches of BTM samples were collected from 396 dairy farms of seven dairy factories owned by four companies in Korea. The means of individual bacterial counts (IBC) and somatic cell count (SCC) were 3.7 x 10(4)cells/mL and 1.1 x 10(5)cells/mL, respectively, and no significant differences among dairy factories were observed. The most common pathogen wasStaphylococcusspp. (60.1%), followed byE. faecalis(53.8%),E. coli(37.6%) andStreptococcusspp. (22.5%).Enterococcusspp. showed the highest resistance to tetracyclines (51.1% to 73.9%) and macrolides (46.5%).S. aureusand coagulase-negative staphylococci (CNS) showed the highest resistance to penicillin (28.4% and 40.2%, respectively), and three (3.2%)S. aureusand seven (3.3%) CNS were also methicillin-resistant. These data show the diverse prevalence and characteristics of major mastitis pathogens among factories, and support the development of strong monitoring and prevention programs of mastitis pathogens by commercial dairy operations. ⓘ Yun, Mun-Jo; Yoon, Sunghyun; Lee, Young Ju ⓘ Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Zoonoses Res Inst, Daegu 41566, South Korea; Gyeongsangbuk Prov Govt Off, Andong 36759, South Korea ⓘ ; Yoon, Sunghyun/AAL-4806-2021 ⓘ 57218873207; 57216037473; 56612134500 ⓘ yun200297@naver.com;sungyoon@knu.ac.kr;youngju@knu.ac.kr; ⓘ ANIMALS ⓘ ANIMALS-BASEL ⓘ 2076-2615 10 9 SCIE AGRICULTURE, DAIRY & ANIMAL SCIENCE;VETERINARY SCIENCES ⓘ 2020 2.752 12.7 1.36 2025-06-25 ⓘ 12 12 bulk tank milk; mastitis pathogen; antimicrobial resistance; somatic cell count ⓘ SOMATIC-CELL COUNT; COAGULASE-NEGATIVE STAPHYLOCOCCI; ANTIMICROBIAL SUSCEPTIBILITY; BOVINE MASTITIS; ESCHERICHIA-COLI; MANAGEMENT-PRACTICES; DAIRY FARMS; BACTERIA; AUREUS; RESISTANCE ⓘ Antimicrobial resistance; Bulk tank milk; Mastitis pathogen; Somatic cell count ⓘ amikacin; amoxicillin plus clavulanic acid; ampicillin; cefadroxil; cefalotin; cefepime; cefotaxime; cefoxitin; ceftazidime; chloramphenicol; ciprofloxacin; clindamycin; colistin; cotrimoxazole; erythromycin; gentamicin; imipenem; kanamycin; levofloxacin; nalidixic acid; nitrofurantoin; norfloxacin; ofloxacin; oxacillin; penicillin derivative; rifampicin; teicoplanin; tetracycline; vancomycin; antibiotic resistance; antibiotic sensitivity; Article; bacterial count; bacterial gene; bacterial growth; bacterium colony; bacterium culture; bacterium identification; bacterium isolation; biochemical analysis; cell count; coagulase negative Staphylococcus; dairy cattle; dairy industry; disk diffusion; Enterococcus; Enterococcus faecalis; Enterococcus faecium; Escherichia coli; Korea; mastitis; matrix assisted laser desorption ionization time of flight mass spectrometry; methicillin resistant Staphylococcus aureus; microbial community; microbial identification; milk analysis; multidrug resistance; nonhuman; polymerase chain reaction; prevalence; protein expression; quality control; somatic cell; Staphylococcus aureus; Streptococcus ⓘ English 2020 2020-09 10.3390/ani10091562 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Next-Generation Sequencing Based Gut Resistome Profiling of Broiler Chickens Infected with Multidrug-Resistant Escherichia coli ⓘ Simple Summary Antimicrobial resistance acquired an endemic status in the Pakistan poultry sector. A cross-sectional study was designed to investigate the fecal microbiome and resistome of broiler chickens infected with multidrug-resistant Escherichia coli using next-generation sequencing. Results show the widespread presence of diverse antibiotic resistance genes, virulence-associated genes, plasmid replicon types, and dysbiotic fecal microbial communities. Results indicate that antibiotic resistance altered the fecal microbial community structure of broiler chickens. The use of next-generation sequencing in this study documents a robust and cost-effective approach to study the fecal microbiome and resistome diversities of broiler chickens. The study was designed to investigate the fecal microbiome and resistome of broiler chickens infected with multidrug-resistant (MDR) Escherichia coli (E. coli). Fecal samples (n = 410) from broiler chickens were collected from thirteen randomly selected sites of Khyber Pakhtunkhwa and screened for the presence of MDR E. coli. Upon initial screening, thirteen (13) MDR E. coli isolates were then subjected to shotgun metagenome next-generation sequencing (NGS). NGS based resistome analysis identified the multidrug efflux pump system-related genes at the highest prevalence (36%) followed by aminoglycoside (26.1%), tetracycline (15.9%), macrolide-lincosamide-streptogramin (9.6%), beta-lactam (6.6%), rifampin (2%), sulphonamide (1.3%), phenicol (0.91%), vancomycin (0.62%), trimethoprim (0.34%), colistin (0.30%), and quinolone (0.33%). The most abundant virulence-associated genes (VAGs) identified were iroN, iutA, iss, and iucA. NGS based taxonomic profiling at the phylum level revealed the predominance of Proteobacteria (38.9%) followed by Firmicutes (36.4%), Bacteroidetes (15.8%), and Tenericutes (8.9%). Furthermore, pathobionts such as E. coli, Salmonella enterica, Klebsiella pneumoniae, and Shigella flexneri belonging to the family Enterobacteriaceae were predominantly found. This study revealed the widespread presence of MDR genes, diverse VAGs, and a dysbiotic gut in the broiler chickens infected with MDR E. coli of Khyber Pakhtunkhwa for the first time using NGS. ⓘ Afridi, Ome Kalsoom; Ali, Johar; Chang, Jeong Ho ⓘ Kyungpook Natl Univ, Dept Biol Educ, 80 Daehak Ro, Daegu 41566, South Korea; Rehman Med Coll, Ctr Genome Sci, Peshawar 25000, Khyber Pakhtunk, Pakistan; Sukkur Inst Business Adm Univ, Execut Dev Ctr, Sindh 65200, Pakistan ⓘ ⓘ 57218250521; 57213890686; 57203598905 ⓘ ummeafridi@gmail.com;Johar.ali1@rmi.edu.pk;jhcbio@knu.ac.kr; ⓘ ANIMALS ⓘ ANIMALS-BASEL ⓘ 2076-2615 10 12 SCIE AGRICULTURE, DAIRY & ANIMAL SCIENCE;VETERINARY SCIENCES ⓘ 2020 2.752 12.7 2.38 2025-06-25 ⓘ 22 23 broiler chickens; fecal microbiota; shotgun metagenome sequencing; dysbiosis; antibiotic resistance genes; multidrug resistance ⓘ ANTIBIOTIC-RESISTANCE; GENES ⓘ Antibiotic resistance genes; Broiler chickens; Dysbiosis; Fecal microbiota; Multidrug resistance; Shotgun metagenome sequencing ⓘ aminoglycoside; ampicillin; antibiotic agent; chloramphenicol; colistin; gentamicin; lincosamide; macrolide; nitrofurantoin; ofloxacin; quinolone; quinolone derivative; rifampicin; RNA 16S; streptogramin derivative; sulfonamide; tetracycline; trimethoprim; vancomycin; antibiotic resistance; antibiotic resistome; antibiotic sensitivity; Article; bacterium identification; bacterium isolation; Bacteroidetes; Bifidobacterium; bioinformatics; broiler; DNA extraction; DNA sequence; Escherichia coli; feces analysis; gene ontology; gene sequence; high throughput sequencing; intestine flora; metagenomics; multidrug resistance; multidrug resistant Escherichia coli; nonhuman; phylogeny; prevalence; Proteobacteria; sequence analysis; Shigella flexneri ⓘ English 2020 2020-12 10.3390/ani10122350 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Stage-Dependent Expression of Protein Gene Product 9.5 in Donkey Testes ⓘ Simple Summary Spermatogenesis and steroidogenesis are key functions of the testes. Molecular markers that identify each stage of germ cells and Leydig cells can identify and isolate specific germ or Leydig cells. Protein gene product (PGP)9.5 is observed in neuroendocrine cells and tumors; it is also used for the immunohistochemical detection of spermatogonial stem cells (SSCs) in various species of animals. It was found that the immunolabeling of PGP9.5 in testicular tissue was not observed in the seminiferous tubules in the pre-pubertal stage. However, in the post-pubertal stage, spermatogonia were immunolabeled with PGP9.5. Interestingly, some Leydig cells were immunolabeled with PGP9.5 in both pre- and post-pubertal stages. This study reflects that the PGP9.5 antibody can be used as a tool to identify and isolate spermatogonia from seminiferous tubules in the post-pubertal stage of donkey testes. Molecular markers can be used to identify and isolate specific developmental stages of germ cells and Leydig cells. Protein gene product (PGP)9.5 expression in spermatogonia and Leydig cells has been reported in several species. The stages of spermatogonia and Leydig cells expressing PGP9.5 vary depending on the species and reproductive stages. Thus, the objectives of this study were (1) to identify the localization of PGP9.5 in donkey testicular cells, and (2) to compare the expression patterns of PGP9.5 in donkey testicular cells between pre- and post-pubertal stages. Testes samples were collected following the routine field castration of six donkeys. Western blotting was performed to verify the cross-reactivity of the rabbit anti-human PGP9.5 antibody to donkey testes. Immunofluorescence was performed to investigate the expression pattern of PGP9.5 in testicular tissues at different reproductive stages. In Western blotting, the protein band of the PGP9.5 antibody appeared at approximately 27 kDa, whereas the band was not observed in the negative control treated with normal mouse IgG. In the pre-pubertal stage, the expression of deleted in azoospermia-like (DAZL) was found in some spermatogonia in pre-pubertal testicular tissues. However, the immunolabeling of PGP9.5 in testicular tissue was not observed in the seminiferous tubules. In stages 1 and 2, spermatogonia were immunolabeled with either PGP9.5 or DAZL. In contrast, PGP9.5 and DAZL were co-immunolabeled in some of the spermatogonia in stages 3 to 8. Interestingly, some Leydig cells were immunolabeled with PGP9.5 in both pre- and post-pubertal stages. In conclusion, the PGP9.5 antibody can be used as a tool to identify and isolate spermatogonia from seminiferous tubules. ⓘ Choi, Yeonju; Jung, Youngwook; Kim, Seongmin; Kim, Junyoung; Jung, Heejun; Yoon, Minjung ⓘ Kyungpook Natl Univ, Dept Anim Sci & Biotechnol, Sangju 37224, South Korea; Kyungpook Natl Univ, Dept Horse Compan & Wild Anim Sci, Sangju 37224, South Korea ⓘ ⓘ 57208551604; 57219279028; 57204760454; 57218494918; 56374279800; 22137296500 ⓘ yjchoi2031@gmail.com;dyddnr02070@naver.com;kimhandles@gmail.com;cpm_911@naver.com;hjjung1019@gmail.com;mjyoonemail@gmail.com; ⓘ ANIMALS ⓘ ANIMALS-BASEL ⓘ 2076-2615 10 11 SCIE AGRICULTURE, DAIRY & ANIMAL SCIENCE;VETERINARY SCIENCES ⓘ 2020 2.752 12.7 0.68 2025-06-25 ⓘ 10 7 PGP9; 5; donkey; testes; spermatogenesis ⓘ C-TERMINAL HYDROLASE; SPERMATOGONIAL STEM-CELLS; RECIPROCAL MODULATORS; APOPTOSIS; MARKER; ISOZYMES; CULTURE ⓘ Donkey; PGP9.5; Spermatogenesis; Testes ⓘ deleted in azoospermia protein 1; animal cell; animal experiment; animal tissue; antibody labeling; Article; castration; controlled study; cross reaction; developmental stage; donkey; gene expression; gene product; germ cell; immunofluorescence assay; Leydig cell; male; nonhuman; prepuberty; protein expression; protein gene product 9.5; puberty; seminiferous tubule; seminiferous tubule epithelium; spermatogenesis; spermatogonium; testis; Western blotting ⓘ English 2020 2020-11 10.3390/ani10112169 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Virulence Variation of Salmonella Gallinarum Isolates through SpvB by CRISPR Sequence Subtyping, 2014 to 2018 ⓘ Simple Summary Salmonella Gallinarum causes fowl typhoid in all ages of chickens, which results in economic loss of commercial chicken farms. The disease has been eradicated in many developed countries, but is still prevalent in Korea. In this study, we investigated virulence and genetic variation of S. Gallinarum from Korea, between 2014 and 2018. The results indicated that virulence was increased, which was associated with genetic change over time. Therefore, surveillance of genetic change associated with virulence increase is necessary for monitoring of S. Gallinarum isolates for dissemination. Salmonella Gallinarum is a Gram-negative bacteria that causes fowl typhoid, a septicemic disease with high morbidity and mortality that affects all ages of chickens. Although vaccines and antimicrobials have been used nationwide to eradicate the disease, the malady is still prevalent in Korea. In this study, we investigated the virulence and genetic variation of 116 S. Gallinarum isolates from laying hens between 2014 and 2018. A total of 116 isolates were divided into five Gallinarum Sequence Types (GST) through clustered regularly interspaced short palindromic repeats (CRISPR) subtyping method. The GSTs displayed changes over time. The 116 isolates showed no difference in virulence gene distribution, but the polyproline linker (PPL) length of the SpvB, one of the virulence factors of Salmonella spp., served as an indicator of S. Gallinarum pathogenicity. The most prevalent PPL length was 22 prolines (37.9%). The shortest PPL length (19 prolines) was found only in isolates from 2014 and 2015. However, the longest PPL length of 24 prolines appeared in 2018. This study indicates that PPLs of S. Gallinarum in Korea tend to lengthen over time, so the pathogenic potency of the bacteria is increasing. Moreover, the transition of GST was associated with PPL length extension over time. These results indicate that surveillance of changing GST and PPL length are necessary in the monitoring of S. Gallinarum isolates. ⓘ Kim, Koeun; Yoon, Sunghyun; Kim, Yeong Bin; Lee, Young Ju ⓘ Kyungpook Natl Univ, Coll Vet Med, Daegu 41566, South Korea; Kyungpook Natl Univ, Zoonoses Res Inst, Daegu 41566, South Korea ⓘ ; Yoon, Sunghyun/AAL-4806-2021 ⓘ 57220805028; 57216037473; 57200044764; 56612134500 ⓘ kke02062@gmail.com;sungyoon@knu.ac.kr;kimybins@gmail.com;youngju@knu.ac.kr; ⓘ ANIMALS ⓘ ANIMALS-BASEL ⓘ 2076-2615 10 12 SCIE AGRICULTURE, DAIRY & ANIMAL SCIENCE;VETERINARY SCIENCES ⓘ 2020 2.752 12.7 0.34 2025-06-25 ⓘ 2 2 Salmonella Gallinarum; fowl typhoid; virulence; CRISPR ⓘ HOST ADAPTATION; EVOLUTION; PREVALENCE; CHICKEN ⓘ CRISPR; Fowl typhoid; Salmonella Gallinarum; Virulence ⓘ genomic DNA; Article; bacterial gene; bacterial strain; bacterial virulence; bacterium isolation; cdtB gene; clustered regularly interspaced short palindromic repeat; DNA extraction; egg laying; fowl typhoid; genetic variation; hen; iroN gene; msgA gene; multiplex polymerase chain reaction; nonhuman; orgA gene; pagC gene; prgH gene; Salmonella enterica serovar Gallinarum; serotyping; sifA gene; simple sequence repeat; sitC gene; sopB gene; spiA gene; tolc gene ⓘ English 2020 2020-12 10.3390/ani10122346 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Effects of electron-beam irradiation and radiation cross-linker on tensile properties and thermal stability of polypropylene-based carbon fiber reinforced thermoplastic ⓘ A carbon fiber reinforced thermoplastic (CFRTP) based on polypropylene (PP) matrix was irradiated by an electron-beam to study its effects on tensile properties and thermal stability at different absorbed doses. Two different types of CFRTP specimens were prepared and utilized for the irradiation experiment: neat CFRTP and CFRTP containing triallyl isocyanurate (TAIC) as radiation cross-linker for PP. The irradiation experiment was conducted on CFRTP specimens by gradually increasing the absorbed dose at 100, 200, and 400 kGy under air atmosphere. It was observed that the tensile strength and Young's modulus of both types of CFRTP were enhanced by increasing the absorbed dose. Furthermore, these properties were greatly enhanced for CFRTP containing TALC. By observing the fracture surface of CFRTP specimens after tensile testing, it was qualitatively confirmed that interfacial adhesion between PP resin and CFs gradually improved by increasing the absorbed dose. Thermogravimetric analysis (TGA) was performed to study the thermal properties of both types of CFRTP which were irradiated at different absorbed doses. The results indicated that thermal stability of both types of CFRTP improved after irradiation, especially for CFRTP containing TAIC. We infer that the tensile properties and thermal stability of CFRTPs increased due to the enhanced adhesion between CF and resin by irradiation and TAIC addition. (C) 2020 Published by Elsevier Ltd. ⓘ Park, Se Kye; Jung, Soonyoung; Lee, Dong Yun; Ghim, Han-do; Yoo, Seung Hwa ⓘ Korea Inst Ind Technol, Daegyeong Reg Div, 59 Yangho Gil, Yeongcheon Si 38822, Gyeongsangbuk D, South Korea; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu, South Korea; Kyungpook Natl Univ, Dept Adv Organ Mat Sci & Engn, Daegu, South Korea; Jeonbuk Natl Univ, Coll Engn, Dept Quantum Syst Engn, Jeonju 54896, South Korea ⓘ ⓘ 57210575824; 57210572051; 57211001605; 6602195799; 57190001859 ⓘ seunghwayoo@jbnu.ac.kr; ⓘ POLYMER DEGRADATION AND STABILITY ⓘ POLYM DEGRAD STABIL ⓘ 0141-3910 1873-2321 181 SCIE POLYMER SCIENCE ⓘ 2020 5.03 12.8 1.16 2025-06-25 ⓘ 17 17 Electron-beam; Carbon fiber reinforced thermoplastic; Triallyl isocyanurate; Tensile property; Thermal stability ⓘ MECHANICAL-PROPERTIES; COMPOSITE STRUCTURES; COMPATIBILIZER; STRENGTH; ADHESION; DESIGN; BLENDS ⓘ Carbon fiber reinforced thermoplastic; Electron-beam; Tensile property; Thermal stability; Triallyl isocyanurate ⓘ Adhesion; Elastic moduli; Electron beams; Fiber reinforced plastics; Fracture testing; Graphite fibers; Irradiation; Polypropylenes; Radiation effects; Resins; Stability; Tensile strength; Tensile testing; Thermogravimetric analysis; Air atmosphere; Carbon fiber reinforced; Electron beam irradiation; Enhanced adhesions; Fracture surfaces; Interfacial adhesions; Irradiation experiments; Triallyl isocyanurate; Thermodynamic stability ⓘ English 2020 2020-11 10.1016/j.polymdegradstab.2020.109301 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Organic tandem solar cells under indoor light illumination ⓘ The lifetime of a device depends highly on that of its battery. In order to enhance the longevity of microsystems or sensor networks, it is necessary for these devices to be self-powered. Indoor photovoltaics allow the possibility of harvesting artificial light sources for powering microsystems. Whereas indoor photovoltaics based on single active layers have showed high efficiencies under LED lighting, tandem structures have yet to be tested extensively. In our study, we use finite-difference time-domain simulations to study the highest possible short-circuit current density that can be extracted from tandem organic devices. We compare the simulation results to the results for photovoltaic devices based on single bulk active layer heterojunctions. Our simulations found that although detailed balanced band gap calculations show tandem photovoltaics to be viable, the low-intensity emission spectra of white LED light sources can be better harvested by single active layer-based photovoltaics. The current-matching limitation of a tandem photovoltaic structure connected in series limits the highest output current and open-circuit voltage of the device and, thus, its performance for the illumination of lower intensity light. ⓘ Biswas, Swarup; You, Young-Jun; Vincent, Premkumar; Bae, Jin-Hyuk; Shim, Jae Won; Kim, Hyeok ⓘ Univ Seoul, Sch Elect & Comp Engn, Inst Informat Technol, 163 Seoulsiripdaero, Seoul 02504, South Korea; Dongguk Univ, Div Elect & Elect Engn, Seoul 04620, South Korea; Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Korea Univ, Sch Elect Engn, 145 Anam Ro, Seoul 02841, South Korea ⓘ You, Young-Jun/AAA-1207-2020; Vincent, Premkumar/C-3190-2019; Biswas, Swarup/AAH-5067-2019 ⓘ 7402251506; 57192982382; 57189221688; 35326180700; 7201856264; 57191718658 ⓘ jhbae@ee.knu.ac.kr;jwshim19@korea.ac.kr;hyeok.kim@uos.ac.kr; ⓘ PROGRESS IN PHOTOVOLTAICS ⓘ PROG PHOTOVOLTAICS ⓘ 1062-7995 1099-159X 28 9 SCIE ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY;PHYSICS, APPLIED ⓘ 2020 7.953 12.8 1.19 2025-06-25 ⓘ 20 21 artificial light harvesting; finite-difference time domain; indoor photovoltaic; tandem ⓘ DETAILED BALANCE LIMIT; CONVERSION EFFICIENCY; PHOTOVOLTAICS; POLYMER ⓘ artificial light harvesting; finite-difference time domain; indoor photovoltaic; tandem ⓘ Emission spectroscopy; Energy gap; Finite difference time domain method; Heterojunctions; Light sources; Microsystems; Open circuit voltage; Sensor networks; Time domain analysis; Artificial light source; Band gap calculations; Emission spectrums; Finite difference time domain simulations; Photovoltaic devices; Photovoltaic structures; Tandem solar cells; White led lights; Organic solar cells ⓘ English 2020 2020-09 10.1002/pip.3301 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ A practical application of generative adversarial networks for RNA-seq analysis to predict the molecular progress of Alzheimer's disease ⓘ Next-generation sequencing (NGS) technology has become a powerful tool for dissecting the molecular and pathological signatures of a variety of human diseases. However, the limited availability of biological samples from different disease stages is a major hurdle in studying disease progressions and identifying early pathological changes. Deep learning techniques have recently begun to be applied to analyze NGS data and thereby predict the progression of biological processes. In this study, we applied a deep learning technique called generative adversarial networks (GANs) to predict the molecular progress of Alzheimer's disease (AD). We successfully applied GANs to analyze RNA-seq data from a 5xFAD mouse model of AD, which recapitulates major AD features of massive amyloid-beta (A beta) accumulation in the brain. We examined how the generator is featured to have specific-sample generation and biological gene association. Based on the above observations, we suggested virtual disease progress by latent space interpolation to yield the transition curves of various genes with pathological changes from normal to AD state. By performing pathway analysis based on the transition curve patterns, we identified several pathological processes with progressive changes, such as inflammatory systems and synapse functions, which have previously been demonstrated to be involved in the pathogenesis of AD. Interestingly, our analysis indicates that alteration of cholesterol biosynthesis begins at a very early stage of AD, suggesting that it is the first effect to mediate the cholesterol metabolism of AD downstream of A beta accumulation. Here, we suggest that GANs are a useful tool to study disease progression, leading to the identification of early pathological signatures. ⓘ Park, Jinhee; Kim, Hyerin; Kim, Jaekwang; Cheon, Mookyung ⓘ Korea Brain Res Inst, Dementia Res Grp, Daegu, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu, South Korea ⓘ Cheon, Mookyung/AIE-0782-2022 ⓘ 57697146900; 56508603900; 57201935123; 7003620854 ⓘ mkcheon@kbri.re.kr; ⓘ PLOS COMPUTATIONAL BIOLOGY ⓘ PLOS COMPUT BIOL ⓘ 1553-734X 1553-7358 16 7 SCIE BIOCHEMICAL RESEARCH METHODS;MATHEMATICAL & COMPUTATIONAL BIOLOGY ⓘ 2020 4.475 12.9 2.05 2025-06-25 ⓘ 30 37 ⓘ AMYLOID-BETA; CHOLESTEROL-METABOLISM; SYNAPTIC PLASTICITY; PROTEIN; NEURONS ⓘ ⓘ Algorithms; Alzheimer Disease; Amyloid beta-Protein Precursor; Animals; Brain; Cerebral Cortex; Cholesterol; Cluster Analysis; Deep Learning; Disease Models, Animal; Disease Progression; Humans; Inflammation; Mice; Models, Genetic; RNA, Messenger; RNA-Seq; Synapses; Temporal Lobe; Whole Exome Sequencing; Biochemistry; Cholesterol; Deep learning; Forecasting; Generative adversarial networks; Learning algorithms; Learning systems; Neurodegenerative diseases; RNA; cholesterol; messenger RNA; amyloid precursor protein; cholesterol; messenger RNA; Alzheimers disease; Biological process; Biological samples; Disease progression; Human disease; Learning techniques; Next-generation sequencing; Pathological changes; RNA-Seq datum; Transition curves; Alzheimer disease; animal experiment; animal model; Article; cholesterol metabolism; cholesterol synthesis; controlled study; deep learning; disease exacerbation; gene expression profiling; genetic association; inflammation; mouse; nonhuman; prediction; RNA sequence; sequence analysis; synapse; wild type; algorithm; Alzheimer disease; animal; biological model; brain; brain cortex; cluster analysis; disease exacerbation; disease model; genetics; human; metabolism; pathophysiology; temporal lobe; whole exome sequencing; Genes ⓘ English 2020 2020-07 10.1371/journal.pcbi.1008099 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Adhesive-Layer-Free and Double-Faced Nanotransfer Lithography for a Flexible Large-Area MetaSurface Hologram ⓘ Herein, we develop an adhesive-free double-faced nanotransfer lithography (ADNT) technique based on the surface deformation of flexible substrates under the conditions of temperature and pressure control and thus address the challenge of realizing the mass production of large-area nanodevices in the fields of optics, metasurfaces, and holograms. During ADNT, which is conducted on a flexible polymer substrate above its glass transition temperature in the absence of adhesive materials and chemical bonding agents, nanostructures from the polymer stamp are attached to the deformed polymer substrate. Various silicon masters are employed to prove our method applicable to arbitrary nanopatterns, and diverse Ag and Au nanostructures are deposited on polymer molds to demonstrate the wide scope of useable metals. Finally, ADNT is used to (i) produce a flexible large-area hologram on the defect-free poly(methyl methacrylate) (PMMA) film and (ii) fabricate a metasurface hologram and a color filter on the front and back surfaces of the PMMA film, respectively, to realize dual functionality. Thus, it is concluded that the use of ADNT can decrease the fabrication time and cost of high-density nanodevices and facilitate their commercialization. ⓘ Zhao, Zhi-Jun; Hwang, Soon Hyoung; Kang, Hyeok-Joong; Jeon, Sohee; Bok, Moonjeong; Ahn, Sunggyun; Im, DaJeong; Hahn, Joonku; Kim, Hwi; Jeong, Jun-Ho ⓘ Korea Inst Machinery & Mat, Nanoconvergence Mech Syst Res Div, 156 Gajeongbuk Ro, Daejeon 34103, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea; Korea Univ, Dept Elect & Informat Engn, Sejong 30019, South Korea; Univ Sci & Technol, Dept Nano Mechatron, 217 Gajeongbuk Ro, Daejeon 34103, South Korea ⓘ ; Zhao, Zhi-Jun/AAX-1158-2020 ⓘ 56949342300; 55893941700; 57213195307; 55938421500; 56495629900; 57208884987; 56115081100; 59540399700; 8933596300; 13407648900 ⓘ jhjeong@kimm.re.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 1 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 0.66 2025-06-25 ⓘ 17 16 adhesivefree double-faced nanotransfer lithography; polymer substrate; flexible; large-area hologram; color filter; nanopattern; PMMA film ⓘ MECHANICAL-INTERLOCKING; OPTICAL LITHOGRAPHY; BEAM LITHOGRAPHY; NANOSTRUCTURES; ALGORITHM; STRENGTH; POLYMER ⓘ adhesive-free double-faced nanotransfer lithography; color filter; flexible; large-area hologram; nanopattern; PMMA film; polymer substrate ⓘ Adhesives; Chemical bonds; Esters; Glass bonding; Glass transition; Gold deposits; Holograms; Lithography; Nanostructured materials; Nanostructures; Polymers; Color filters; flexible; Nano pattern; Nanotransfer; PMMA films; Polymer substrate; Substrates ⓘ English 2020 2020-01-08 10.1021/acsami.9b14345 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Atomic Layer MoS2xTe2(1-x) Ternary Alloys: Two-Dimensional van der Waals Growth, Band gap Engineering, and Electrical Transport ⓘ Ternary alloys in two-dimensional (2D) transition-metal dichalcogenides allow band gap tuning and phase engineering and change the electrical transport type. A process of 2D van der Waals epitaxial growth of molybdenum sulfide telluride alloys (MoS2xTe2(1-x), 0 <= x <= 1) is presented for synthesizing few-atomic-layer films on SiO2 substrates using metal-organic chemical vapor deposition. Raman spectra, X-ray photoelectron spectra, photoluminescence (PL), and electrical transport properties of few-atomic-layer MoS2xTe2(1-x) (0 <= x <= 1) films are systematically investigated. The strong PL peaks at 80 K from MoS2xTe2(1-x) (0.45 <= x <= 0.93) reveal a composition-controllable optical band gap (E-g = 1.55-1.91 eV at 80 K). Electrical transport properties of MoS2xTe2(1-x) alloys, where 0 <= x <= 0.8 and 0.93 <= x <= 1, exhibit p-type and n-type semiconducting behaviors, respectively. Remarkably, an increase in the Te composition of a few-atomiclayer MoS2xTe2(1-x) (0 <= x <= 1) film left-shifts the threshold voltage of a MoS2xTe2(1-x) (0 <= x <= 1) field-effect transistor. The narrower band gap energies of MoS2xTe2(1-x) films with higher Te content cause a decrease in the on/off current ratios. ⓘ Kim, DongHwan; Oh, Guen Hyung; Kim, Ansoon; Shin, ChaeHo; Park, Jonghoo; Kim, Sang-il; Kim, TaeWan ⓘ Korea Res Inst Stand & Sci, Mat & Convergence Metrol Inst, Daejeon 34113, South Korea; Jeonbuk Natl Univ, Dept Elect Engn, Jeonju 54896, South Korea; Jeonbuk Natl Univ, Smart Grid Res Ctr, Jeonju 54896, South Korea; Kyungpook Natl Univ, Dept Elect Engn, Daegu 41566, South Korea; Univ Seoul, Dept Mat Sci & Engn, Seoul 02504, South Korea ⓘ ; Kim, Ansoon/ABI-7559-2020; Oh, Guenhyung/LMN-5674-2024 ⓘ 58602410800; 57218944140; 7402063445; 55391691600; 57196408322; 36171889900; 57199878285 ⓘ twkim@jbnu.ac.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 36 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 0.38 2025-06-25 ⓘ 11 10 ternary alloy; MoSTe; metal-organic chemical vapor deposition; wafer-scale synthesis; field-effect transistor ⓘ FIELD-EFFECT TRANSISTORS; LARGE-AREA; MOS2; MOTE2; PERFORMANCE ⓘ field-effect transistor; metal-organic chemical vapor deposition; MoSTe; ternary alloy; wafer-scale synthesis ⓘ Atoms; Field effect transistors; Layered semiconductors; Metallorganic chemical vapor deposition; Molybdenum alloys; Molybdenum compounds; Organic chemicals; Organometallics; Photoelectron spectroscopy; Silica; Sulfur compounds; Tellurium; Ternary alloys; Threshold voltage; Transition metal alloys; Transition metals; Transport properties; Van der Waals forces; Band gap engineering; Electrical transport; Electrical transport properties; ON/OFF current ratio; Semiconducting behavior; Transition metal dichalcogenides; Two Dimensional (2 D); X ray photoelectron spectra; Energy gap ⓘ English 2020 2020-09-09 10.1021/acsami.0c11154 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Cultivated Orostachys japonicus extract inhibits VEGF-induced angiogenesis via regulation of VEGFR2 signaling pathway in vitro and in vivo ⓘ Ethnopharmacological relevance: Orostachys japonicus A. Berger (O. japonicus), so-called Wa-song in Korea, a traditional food and medicine that grows on mountain rocks and roof files. Wa-song containing various phenolic compounds have been reported as a medicinal plant for prevention of fibrosis, cancer, inflammation, and oxidative damage. Aim of the study: The present study was designed to examine the anti-angiogenic effects of cultivated Orostachys japonicus 70% ethanol extract (CE) in vascular endothelial growth factor (VEGF)-stimulated human umbilical vein endothelial cells (HUVECs). Materials and methods: CE was prepared with 70% ethanol. HUVECs, rat aortic rings, and matrigel plug in mice were treated with CE (10-20 mu g/mL) and VEGF (20-50 ng/mL), and the anti-angiogenic activities of CE were analyzed by SRB, wound healing, trans-well invasion, capillary-like tubule formation, rat aortas, Western blot, and matrigel plug assay. Phenolic compounds in CE were analyzed using a high-performance liquid chromatography (HPLC)-PDA system. Results: Treatment of CE (10-20 mu g/mL) markedly suppressed proliferation of HUVECs in the presence (from 136.5% to 112.2%) or absence of VEGF (from 100.0% to 92.1%). The proliferation inhibitory effect of CE was caused by G0/G1 cell cycle arrest, and the decrease of CDK-2, CDK-4, Cyclin D1 and Cyclin E1. Furthermore, CE treatment showed significant angiogenesis inhibitory effects on motility, invasion and micro-vessel formation of HUVECs, rat aortic rings and subcutaneous matrigels under VEGF-stimulation condition. In HUVECs, CE-induced anti-angiogenic effect was regulated by inhibition of the PI3K/AKT/mTOR, MAPK/p38, MAPK/ERK, FAK-Src, and VEGF-VEGFR2 signaling pathways. Conclusion: This study demonstrated that CE might be used as a potential natural substance, multi-targeted angiogenesis inhibitor, functional food material. ⓘ Cho, Hyun-Dong; Lee, Kwan-Woo; Won, Yeong-Seon; Kim, Jeong-Ho; Seo, Kwon-Il ⓘ Dong A Univ, Ind Acad Cooperat, Busan 49315, South Korea; Dong A Univ, Dept Biotechnol, 37,Nakdong Daero 550 St, Busan 49315, South Korea; Kyungpook Natl Univ, Dept Food Sci & Biotechnol, Daegu 41566, South Korea ⓘ Cho, Hyun-Dong/HLW-0763-2023; Kim, Jeong-Ho/A-7641-2018 ⓘ 55383853000; 57224523674; 59148009100; 57194659775; 59836699000 ⓘ kseo@dau.ac.kr; ⓘ JOURNAL OF ETHNOPHARMACOLOGY ⓘ J ETHNOPHARMACOL ⓘ 0378-8741 1872-7573 256 SCIE CHEMISTRY, MEDICINAL;INTEGRATIVE & COMPLEMENTARY MEDICINE;PHARMACOLOGY & PHARMACY;PLANT SCIENCES ⓘ 2020 4.36 13.0 0.54 2025-06-25 ⓘ 10 10 Angiogenesis; Cultivated Orostachys japonicus; Vascular endothelial growth factor receptor 2 ⓘ ENDOTHELIAL GROWTH-FACTOR; CELL-CYCLE ARREST; TISSUE INHIBITOR; MECHANISMS; CANCER; METASTASIS; INVASION; SUPPRESSION; FLAVONOIDS; MIGRATION ⓘ Angiogenesis; Cultivated Orostachys japonicus; Vascular endothelial growth factor receptor 2 ⓘ Angiogenesis Inducing Agents; Angiogenesis Inhibitors; Animals; Cell Cycle Checkpoints; Cell Line; Cell Movement; Cell Proliferation; Collagen; Crassulaceae; Drug Combinations; G1 Phase; Human Umbilical Vein Endothelial Cells; Humans; Laminin; Male; Mice; Mice, Inbred C57BL; Neovascularization, Pathologic; Plant Extracts; Proteoglycans; Rats; Rats, Sprague-Dawley; Resting Phase, Cell Cycle; Signal Transduction; Vascular Endothelial Growth Factor A; Vascular Endothelial Growth Factor Receptor-2; angiogenesis inhibitor; cyclin D1; cyclin dependent kinase 2; cyclin dependent kinase 4; cyclin E; cyclin E1; focal adhesion kinase; mammalian target of rapamycin; matrigel; mitogen activated protein kinase; mitogen activated protein kinase p38; Orostachys japonicus extract; phosphatidylinositol 3 kinase; plant extract; protein kinase B; unclassified drug; vasculotropin; vasculotropin receptor 2; angiogenesis inhibitor; angiogenic factor; collagen; Kdr protein, mouse; laminin; plant extract; proteoglycan; vascular endothelial growth factor A, mouse; vasculotropin A; vasculotropin receptor 2; animal experiment; animal tissue; antiangiogenic activity; aortic ring (slice); Article; cell cycle G0 phase; cell invasion; cell motility; cell proliferation; controlled study; enzyme inhibition; G1 phase cell cycle checkpoint; high performance liquid chromatography; human; human cell; in vitro study; in vivo study; male; medicinal plant; microvasculature; mouse; nonhuman; Orostachys japonicus; rat; umbilical vein endothelial cell; Western blotting; animal; C57BL mouse; cell cycle checkpoint; cell cycle G1 phase; cell line; cell motion; chemistry; Crassulaceae; drug combination; drug effect; metabolism; neovascularization (pathology); signal transduction; Sprague Dawley rat ⓘ English 2020 2020-06-28 10.1016/j.jep.2020.112664 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Growth and NO2-Sensing Properties of Biaxial p-SnO/n-ZnO Heterostructured Nanowires ⓘ Biaxial p-SnO/n-ZnO heterostructured nanowires (average length of 10 mu m) were grown onto a glass substrate by thermal evaporation in vacuum. These nanowires had spherical ball tips, and the size of the SnO part increased gradually from the top to the bottom of the nanowire, but the corresponding size of ZnO varied slightly. The Sn-Zn alloy formed in the tips resulted in determined as the catalyst of the growth of the ZnO nanowires. The growth process of the p-SnO/n-ZnO biaxial nanowires is discussed based on vapor-liquid-solid (VLS) based on the subsequent growth process: the VLS catalytic growth of the ZnO nanowire and subsequent epitaxial SnO growth on the sidewall of the pregrown ZnO nanowire. An epitaxial relationship, (001)(SnO)//(110)(ZnO) and [110](SnO)//[002](ZnO), was observed in the biaxial p-SnO/n-ZnO heterostructured nanowires. The gas-sensing properties of the as-synthesized p-SnO/n-ZnO nanowires were investigated. The results show that the device exhibit a good performance to the ppb-level NO2 at room temperature (25 degrees C) without light illumination. The detection limit of the p-SnO/n-ZnO sensor to NO2 is 50 ppb. Moreover, the NO2-sensing properties of the p-SnO/n-ZnO device were investigated under various relative humidity. Finally, the NO2-sensing mechanism of the p-SnO/nZnO nanowires was proposed and discussed. ⓘ Pham Tien Hung; Phung Dinh Hoat; Vu Xuan Hien; Lee, Hee-Young; Lee, Sangwook; Lee, Joon-Hyung; Kim, Jeong-Joo; Heo, Young-Woo ⓘ Kyungpook Natl Univ KNU, Sch Mat Sci & Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Adv Mat Res Inst, Daegu 41566, South Korea; Le Quy Don Tech Univ, Dept Phys, Hanoi 100000, Vietnam; Hanoi Univ Sci & Technol HUST, Sch Engn Phys, Hanoi 100000, Vietnam; Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan 38541, South Korea ⓘ ; Xuan, Hien/AAF-7020-2019; Hung, pham/ABF-3792-2021; Lee, Sangwook/O-9166-2015; Kim, Jihyun/F-6940-2013 ⓘ 57194216208; 57209732166; 54408588700; 8224736600; 57203597324; 57204923460; 8214705700; 7004298542 ⓘ ywheo@knu.ac.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 30 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 1.15 2025-06-25 ⓘ 25 27 SnO; ZnO; heterostructured nanowires; biaxial; gas sensor ⓘ GAS-SENSING PROPERTIES; ROOM-TEMPERATURE; ANODE MATERIAL; NO2; SENSOR; FABRICATION; NANOSHEETS; COMPOSITE; SURFACE ⓘ biaxial; gas sensor; heterostructured nanowires; SnO; ZnO ⓘ Binary alloys; II-VI semiconductors; Nanowires; Nitrogen oxides; Oxide minerals; Substrates; Thermal evaporation; Tin alloys; Vacuum evaporation; Zinc oxide; Catalytic growth; Epitaxial relationships; Gas sensing properties; Heterostructured Nanowires; Light illumination; Sensing mechanism; Sensing property; Vapor liquid solids; Zinc alloys ⓘ English 2020 2020-07-29 10.1021/acsami.0c04974 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ High-Efficiency Flexible Perovskite Solar Cells Enabled by an Ultrafast Room-Temperature Reactive Ion Etching Process ⓘ Perovskite solar cells (PSCs), which have surprisingly emerged in recent years, are now aiming at commercialization. Rapid, low-temperature, and continuous fabrication processes that can produce high-efficiency PSCs with a reduced fabrication cost and shortened energy payback time are important challenges on the way to commercialization. Herein, we report a reactive ion etching (RIE) method, which is an ultrafast room-temperature technique, to fabricate mesoporous TiO2 (mp-TiO2) as an electron transport layer for high-efficiency PSCs. Replacing the conventional high-temperature annealing process by RIE reduces the total processing time for fabricating 20 PSCs by 40%. Additionally, the ME-processed mp-TiO2 exhibits enhanced electron extraction, whereupon the optimized RIE-mp-TiO2-based PSC exhibits a power conversion efficiency (PCE) of 19.60% without J-V hysteresis, when the devices were optimized with a TiCl4 surface treatment process. Finally, a flexible PSC employing RIE-mp-TiO2 is demonstrated with 17.29% PCE. Considering that the ME process has been actively used in the semiconductor industry, including for the fabrication of silicon photovoltaic modules, the process developed in this work could be easily applied toward faster, simpler, and cheaper manufacturing of PSC modules. ⓘ Kim, Byeong Jo; Kwon, Seung Lee; Kim, Min-cheol; Jin, Young Un; Lee, Dong Geon; Jeon, Jae Bum; Yun, Yeonghun; Choi, Mansoo; Boschloo, Gerrit; Lee, Sangwook; Jung, Hyun Suk ⓘ Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 16419, South Korea; Uppsala Univ, Dept Chem, Angstrom Lab, Phys Chem, SE-75120 Uppsala, Sweden; Univ Calif San Diego, Dept NanoEngn, La Jolla, CA 92093 USA; Seoul Natl Univ, Dept Mech & Aerosp Engn, Seoul 08826, South Korea; Global Frontier Ctr Multiscale Energy Syst, Seoul 151744, South Korea ⓘ ; Kim, Byeong/M-4110-2014; Yun, Yeonghun/KRP-9208-2024; Kwon, Seung Lee/HMV-5888-2023; Boschloo, Gerrit/AAB-1895-2022; Lee, Sangwook/O-9166-2015; Jung, Hyun Suk/H-3659-2015 ⓘ 56035375300; 58729603300; 57203548601; 56939556800; 57199466655; 57235460900; 57202548363; 17234130700; 6701914421; 57203597324; 9432551800 ⓘ hsjungl@skku.edu;wook2@knu.ac.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 6 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 0.49 2025-06-25 ⓘ 10 11 perovskite; solar cells; reactive ion etching; flexible device; low-temperature process ⓘ HOLE-CONDUCTOR-FREE; TIO2 PHOTOCATALYSTS; ELECTRON; LAYER; DEGRADATION; PERFORMANCE; COMPOSITES; CH3NH3PBI3; LENGTHS; PHENOL ⓘ flexible device; lowerature process; perovskite; reactive ion etching; solar cells ⓘ Chlorine compounds; Electron transport properties; Fabrication; Ions; Perovskite; Photovoltaic cells; Reactive ion etching; Semiconductor device manufacture; Solar cells; Titanium dioxide; Continuous fabrication process; Electron transport layers; Energy pay back time; Flexible device; Power conversion efficiencies; Semiconductor industry; Silicon photovoltaic modules; Total processing time; Perovskite solar cells ⓘ English 2020 2020-02-12 10.1021/acsami.9b19030 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Highly Improved Performance of Cotton Air Filters in Particulate Matter Removal by the Incorporation of Metal-Organic Frameworks with Functional Groups Capable of Large Charge Separation ⓘ Currently, air contamination, especially with particulate matters (PMs), is severe in several countries. To increase the efficiency of air filters in PM removal, metal-organic frameworks (MOFs, here, Zr-MOFs, especially with functional groups (FGs) such as -NO2) were coated, after synthesis, onto cotton using covalent bonding for the first time. The removal efficiencies (REs) and quality factors (QFs) of cottons with or without MOFs were in the order: cotton < Zr-MOF/cotton < Zr-MOF-NH2/cotton < Zr-MOF-NH-SO3H/cotton < Zr-MOF-NH3+Cl-/cotton < Zr-MOF-NO2/cotton. This monotonic increase in the PM removal efficiency or QF could be explained with the order of charge separation or developed charges (total, in absolute value: similar to 0 to 2.0) on FGs of MOFs. Importantly, Zr-MOF-NO2 coating on cotton showed a very high increase in the performance of cotton in PM removal. QF and RE of Zr-MOF-NO2/cotton were 4.6 times and 6.2 times of the bare cotton, respectively, for PM2.5 removal, even with a very small increase in pressure drop (3 Pa or less) with MOF coating. Based on the research, it can be suggested that coating MOFs on substrates is a promising way to improve the performances of air filters for PM removal, especially when MOFs have FGs that can have large charge separation such as -NO2. This work may pave a way to utilize a functionalized MOF in the effective removal of PMs from air. ⓘ Woo, Hochul; Yoo, Dong Kyu; Jhung, Sung Hwa ⓘ Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea; Kyungpook Natl Univ, Green Nano Mat Res Ctr, Daegu 41566, South Korea ⓘ ; Jhung, Sung/AAO-6683-2021 ⓘ 57217234591; 57201339246; 6701659467 ⓘ sung@knu.ac.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 25 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 2.47 2025-06-25 ⓘ 0 59 air filter; functional group; metal-organicframework; nitro group; particulate matter; quality factor ⓘ ZEOLITIC IMIDAZOLATE FRAMEWORK-8; IN-SITU GROWTH; FIBROUS MEMBRANES; GAS-ADSORPTION; PM2.5 REMOVAL; MODEL FUEL; EFFICIENT; FIBER; PARTICLES; CAPTURE ⓘ air filter; functional group; metal-organic framework; nitro group; particulate matter; quality factor ⓘ Air filters; Ammonia; Coatings; Efficiency; Metal-Organic Frameworks; Nitrogen oxides; Organometallics; Particles (particulate matter); Separation; Air contamination; Charge separations; Covalent bonding; Effective removals; Increase in pressure; Particulate Matter; Quality factors; Removal efficiencies; Cotton ⓘ English 2020 2020-06-10 10.1021/acsami.0c07123 ⓘ 바로가기 바로가기 바로가기 바로가기
○ ○ Article ⓘ Laser-Induced Crystalline-Phase Transformation for Hematite Nanorod Photoelectrochemical Cells ⓘ Generally, a high-temperature postannealing process is required to enhance the photoelectrochemical (PEC) performance of hematite nanorod (NR) photoanodes. However, the thermal annealing time is limited to a short duration as thermal annealing at high temperatures can result in some critical problems, such as conductivity degradation of the fluorine-doped tin oxide film and deformation of the glass substrate. In this study, selective laser processing is introduced for hematite-based PEC cells as an alternative annealing process. The developed laser-induced phase transformation (LIPT) process yields hematite NRs with enhanced optical, chemical, and electrical properties for application in hematite NR-based PEC cells. Owing to its improved properties, the LIPT-processed hematite NR PEC cell exhibits an enhanced water oxidation performance compared to that processed by the conventional annealing process. As the LIPT process is conducted under ambient conditions, it would be an excellent alternative annealing technique for heat-sensitive flexible substrates in the future. ⓘ Kong, Heejung; Kwon, Jinhyeong; Paeng, Dongwoo; Jung, Won Jun; Ghimire, Santosh; Dho, Joonghoe; Yoo, Jae-Hyuck; Hong, Sukjoon; Jung, Jinwook; Shin, Jaeho; Grigoropoulos, Costas P.; Ko, Seung Hwan; Yeo, Junyeob ⓘ Univ Calif Berkeley, Dept Mech Engn, Laser Thermal Lab, Berkeley, CA 94720 USA; Seoul Natl Univ, Dept Mech Engn, Appl Nano & Thermal Sci Lab, Seoul 151742, South Korea; Kyungpook Natl Univ, Novel Appl Nano Opt Lab, Dept Phys, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Hydrogen & Renewable Energy, Daegu 41566, South Korea; Korea Inst Ind Technol, Intelligent Mfg Syst, Cheonan 31056, Chungcheongnam, South Korea; Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea; Lawrence Livermore Natl Lab, Phys & Life Sci & NIF & Photon Sci, Livermore, CA 94550 USA; Hanyang Univ, Dept Mech Engn, Ansan 15588, Gyeonggi Do, South Korea ⓘ Kong, Heejung/CAG-1032-2022; Yoo, Jae-Hyuck/O-1808-2013; Yeo, Junyeob/I-1287-2013; Ko, Seung Hwan/B-5448-2008; Ko, Seung Hwan/B-5448-2008 ⓘ 35563614300; 8699527700; 58692645200; 57552927300; 55780560700; 56400730500; 57216752153; 57203357807; 6602898623; 40762701800; 34973077200; 57193111722; 58732445000 ⓘ cgrigoro@berkeley.edu;maxko@snu.ac.kr;junyeob@knu.ac.kr; ⓘ ACS APPLIED MATERIALS & INTERFACES ⓘ ACS APPL MATER INTER ⓘ 1944-8244 1944-8252 12 43 SCIE MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY ⓘ 2020 9.229 13.0 0.6 2025-06-25 ⓘ 19 16 hematite nanorod; laser; laser-induced phase transformation; water splitting; photoelectrochemical cell ⓘ WATER OXIDATION; EFFICIENT; FILMS; NANOSTRUCTURE; PHOTOANODES; ACTIVATION; ARRAYS; TEMPERATURE; PERFORMANCE; ABSORPTION ⓘ Hematite nanorod; Laser; Laser-induced phase transformation; Photoelectrochemical cell; Water splitting ⓘ Annealing; Cells; Cytology; Hematite; Nanocomposites; Nanorods; Oxide films; Phase transitions; Substrates; Tin oxides; Annealing techniques; Conductivity degradations; Conventional annealing; Crystalline phase transformation; Flexible substrate; Fluorine-doped tin oxide films; Photoelectrochemicals; Postannealing process; Photoelectrochemical cells ⓘ English 2020 2020-10-28 10.1021/acsami.0c11999 ⓘ 바로가기 바로가기 바로가기 바로가기
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