Article
Microbiology
Shiori Hirano, Takeshi Terahara, Koji Mori, Moriyuki Hamada, Ryo Matsumoto, Takeshi Kobayashi
Summary: A novel marine bacterium, Vallitalea longa sp. nov., strain SH18-1T, was isolated from sediment near Sado Island in Japan. This strain is anaerobic, Gram-stain-negative, rod-shaped, and motile. It has a wide temperature, salt concentration, and pH range for growth. Phylogenetic analysis shows its closest related species to be Vallitalea guaymasensis Ra1766G1T. The results indicate that strain SH18-1T represents a new species of the genus Vallitalea.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2023)
Article
Biodiversity Conservation
Minji Kim, Ki-Eun Lee, In-Tae Cha, Soo-Je Park
Summary: A Gram-stain-negative, rod-shaped, and facultatively anaerobic bacterium named strain GJ3(T) was isolated from coastal sediment of Jeju Island, South Korea. It was classified as a novel species within the genus Photobacterium, with high sequence similarity to other closely related species. Strain GJ3(T) exhibited facultative anaerobic growth and optimal growth conditions at specific temperature, pH, and salt concentration.
Article
Microbiology
Chaobo Guo, Xinyu Liu, Feilu Xie, Hong Ding, Shan He, Ning Wang, Weiyan Zhang
Summary: A novel strain NBU1457(T) was isolated from marine sediment on Meishan Island in the East China Sea. It belongs to the genus Oricola and shows high similarities to Oricola thermophila MEBiC13590(T), Oricola cellulosilytica CC-AMH-0( T), and Oricola indica JL-62( T). The strain is proposed as a new species, Oricola nitratireducens sp. nov., with NBU1457(T) as the type strain.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2023)
Article
Microbiology
Jiseon Jeong, Veeraya Weerawongwiwat, Yunjeong Lee, Jong-Hwa Kim, Ampaitip Sukhoom, Kijeong Kim, Wonyong Kim
Summary: A novel bacterium strain CAU 1614(T) was isolated from a marine sediment sample collected in the Republic of Korea, belonging to a new genus Halomarinibacterium in the family Flavobacteriaceae. It is a Gram-negative, strictly aerobic, non-motile rod-shaped bacterium with optimal growth conditions at 30 degrees C, pH 7.0, and 2% NaCl. The genetic, phenotypic, and chemotaxonomic characteristics distinguish it as a new species Halomarinibacterium sedimenti gen. nov., sp. nov.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Microbiology
Feilu Xie, Suting Zhu, Chaobo Guo, Xinyu Liu, Shan He, Weiyan Zhang
Summary: A new bacterium strain NBU1238(T) belonging to the genus Luteolibacter was isolated from marine sediment in Meishan Island, East China Sea, and named Luteolibacter marinus sp. nov.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Microbiology
Suting Zhu, Can Chen, Yuping Cheng, Chaobo Guo, Nan Peng, Weiyan Zhang, Shan He
Summary: ZQ172(T) is a novel bacterium isolated from marine sediment in the East China Sea, belonging to the genus Shimia and named Shimia sediminis sp. nov. It exhibits specific growth conditions, biochemical characteristics, and gene sequences, which differentiate it from other species within the Shimia genus.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Zhi-Cheng Wu, Xin-Yin Zhang, Cong Sun, Lin Xu, Ge-Yi Fu, Xue-Wei Xu
Summary: Strain TT11(T) is a novel halotolerant bacterium from the Aestuariibaculum genus, producing carotenoid-like pigments, with optimal growth at 35 degrees Celsius, pH 6.5, and tolerance to 0.5-1.0% NaCl.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Microbiology
Renju Liu, Qiliang Lai, Li Gu, Peisheng Yan, Zongze Shao
Summary: A20-9(T) is a novel Gram-stain-negative, aerobic bacterium that can grow under various conditions, forming a monophyletic branch in phylogenetic analysis and representing a new genus named Croceimicrobium.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Qi Zhang, Guohong Liu, Manik Prabhu Narsing Rao, Rong Tang, Shang Yang, Wen-Yuan Ye, Shun-Gui Zhou, Wen-Jun Li
Summary: Two Gram-stain-negative, motile, facultatively anaerobic, rod-shaped strains, FJAT-53720T and FJAT-53726, isolated from rhizosphere sediment of plant Cyperus malaccensis, belong to the genus Shewanella with unique physiological and biochemical features, such as growth at 30℃ and pH 7, specific respiratory quinones and polar lipids, and major fatty acids iso-C-15:0 and C-17:1 omega(8)c.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Minji Kim, In-Tae Cha, Ki-Eun Lee, Byoung-Hee Lee, Soo-Je Park
Summary: The study described a new bacterium strain Kineobactrum salinum sp. nov., isolated from marine sediment at Jeju Island, which exhibited unique growth environment adaptability and physiological characteristics, belonging to the genus Kineobactrum.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Donghua Qiu, Xiang Zeng, Lingyu Zeng, Guangyu Li, Zongze Shao
Summary: The novel bacterium Q10-2(T) is an anaerobic, alkaliphilic, halotolerant, Gram-stain-positive, rod-shaped bacterium that can grow in alkaline and saline environments, utilizing a variety of organic compounds as carbon sources and electron donors.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Jong-Hwa Kim, Veeraya Weerawongwiwat, Jung-Hoon Yoon, Jung-Sook Lee, Ampaitip Sukhoom, Wonyong Kim
Summary: Strain CAU 1569(T) is a novel bacterial species isolated from marine sediment on Shido Island in Incheon, with distinct physiological and genomic characteristics compared to known Snuella species.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Venke Kristoffersen, Marte Jenssen, Heba Raid Jawad, Johan Isaksson, Espen H. Hansen, Teppo Rama, Kine O. Hansen, Jeanette Hammer Andersen
Summary: Through chemical studies of bacteria belonging to the Lacinutrix genus, two novel isobranched lyso-ornithine lipids were identified, with compound 1 exhibiting antibacterial activity, while compound 2 showed cytotoxic activity against human melanoma cells.
Article
Microbiology
Zhaobin Huang, Xiaomei Wei, Qiliang Lai, Shiyong Chen, Jianjun Yuan
Summary: Two marine bacterial strains were isolated from different sediment samples in Quanzhou bay, China, sharing similar characteristics and being classified as the same species. Phylogenetic analysis based on 16S rRNA gene sequences and whole genome sequences indicated that these two strains formed a new genus within the family Flavobacteriaceae, showing phylogenetic differences with known bacterial genera.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2021)
Article
Microbiology
Chen Yang, Suting Zhu, Chaoling Sun, Lijian Ding, Dawoon Jung, Shan He, Ning Wang, Weiyan Zhang
Summary: This study isolated a novel marine bacterium from marine sediment on Meishan Island in the East China Sea. Through various experiments and analysis of 16S rRNA gene sequences, it was found that the bacterium belongs to the genus Pelagibius, and a new species name was proposed.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Review
Biotechnology & Applied Microbiology
Ve Van Le, Quynh-Giao Tran, So-Ra Ko, Sang-Ah Lee, Hee-Mock Oh, Hee-Sik Kim, Chi-Yong Ahn
Summary: This review summarizes the effects of antibiotic pollution on freshwater microalgae and cyanobacteria, focusing on major biological processes such as photosynthesis, oxidative stress, and macromolecule metabolism. Adaptive mechanisms and antibiotic removal pathways by these organisms are also discussed.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Article
Environmental Sciences
Ve Van Le, So-Ra Ko, Mingyeong Kang, Chan-Yeong Park, Sang-Ah Lee, Hee -Mock Oh, Chi -Yong Ahn
Summary: This study investigated the effectiveness of Paucibacter aquatile DH15 in controlling Microcystis blooms. The results showed that DH15 significantly reduced Microcystis cell density, decreased microcystins release, and had an impact on water quality and microbial community.
ENVIRONMENTAL POLLUTION
(2022)
Review
Environmental Sciences
Afshin Samadi, Youngsam Kim, Sang-Ah Lee, Young Jun Kim, Maranda Esterhuizen
Summary: Plastic pollution has gained widespread attention for its impact on the environment, particularly in aquatic ecosystems. However, research has primarily focused on marine ecosystems, neglecting the equally or even more polluted freshwater ecosystems. Little is known about the mechanism and extent of plastic pollution's effect on aquatic biota and its transfer through food webs to humans, especially considering the leaching of hazardous chemicals. Studies have shown extreme toxicity in freshwater organisms like Daphnia, and when these keystone species are affected, entire food webs are destabilized and biodiversity is threatened. The increasing presence of plastic contaminants in freshwater environments has detrimental effects on ecosystem functions and structure, leading to negative ecological consequences. The consolidation of literature on the effects of plastic pollution on daphnids is essential to assess the limitations and knowledge gaps and evaluate the risk posed to the aquatic environment.
ENVIRONMENTAL TOXICOLOGY
(2022)
Article
Multidisciplinary Sciences
Faizan Ejaz, Leslie K. Hwang, Jangyup Son, Jin-Sang Kim, Dong Su Lee, Beomjin Kwon
Summary: This study applies deep learning to approximate the effective electrical and thermal conductivities of copper-carbon nanotube composites, achieving high accuracy with trained convolutional neural networks. The method shows potential for complex transport processes in composite materials, offering a faster and more efficient alternative to traditional numerical simulations.
SCIENTIFIC REPORTS
(2022)
Article
Psychology, Multidisciplinary
Sangwook Lee, Won-Ki Moon, Jae-Gil Lee, S. Shyam Sundar
Summary: Media systems that personalize their offerings by learning from user activities can enhance user experience when transparency is provided. Users tend to trust and find the system helpful when the machine learning process is explicitly conveyed, regardless of system performance. Privacy concerns were not found to be significant.
COMPUTERS IN HUMAN BEHAVIOR
(2023)
Article
Materials Science, Multidisciplinary
Faizan Ejaz, Munku Kang, Jangyup Son, Jin-Sang Kim, Dong Su Lee, Beomjin Kwon
Summary: This article presents a two-dimensional finite element model to study the influence of interface resistance on the electrical and thermal transport properties of Cu-CNT composites. The model predicts that a high concentration of single-walled CNTs can significantly enhance the electrical and thermal conductivity of the composites when interface resistances are low.
Article
Chemistry, Multidisciplinary
Ilhwan Yu, Vu Thi Quyen, Jaehyoung Ko, Dong Su Lee, Dae-Young Jeon, Yongho Joo
Summary: The research team has developed a method for recycling electronic devices using a water-floating system, which utilizes a water-compatible semiconductor as the active material. The device has high recyclability and stability, and has the potential to become an eco-friendly, cost-effective, and scalable device.
MATERIALS HORIZONS
(2023)
Article
Nursing
Taewha Lee, Su Jeong Lee, Yea Seul Yoon, Hyunju Ji, Sookhee Yoon, SangA Lee, Yoonjung Ji
Summary: This study examines the influence of personal factors and clinical learning environment on the readiness for practice among nursing students. The results show that self-esteem, work-life balance satisfaction, and clinical learning environment significantly affect the readiness for practice. Improving self-esteem and work-life balance satisfaction, as well as providing sufficient educational and clinical support to enhance the clinical learning environment, can help nursing students transition smoothly into real-world practice.
ASIAN NURSING RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Indong Jun, Hyunki Cho, Sebastian E. Amos, Youngjun Choi, Yu Suk Choi, Chang Seon Ryu, Sang-Ah Lee, Dong-Wook Han, Hyung-Seop Han, Ji Hun Yang, Hyun-Woo Jeong, Honghyun Park, Young Jun Kim
Summary: The disruption of thyroid hormones due to chemical exposure is a significant societal problem. Recent breakthroughs in biotechnology have allowed for the evaluation of potential toxicity of chemicals using 3D cell cultures. This study focuses on the interactive effects of thyroid-friendly soft (TS) microspheres on thyroid cell aggregates and evaluates their potential as a reliable toxicity assessment tool.
Article
Nutrition & Dietetics
Hye-Jin Lee, Hui-Ji Choi, Sang-Ah Lee, Dong Hyuk Baek, Jong Beom Heo, Gyu Yong Song, Wonhwa Lee
Summary: Rare ginsenosides, specifically protopanaxatriol-type, can improve skeletal muscle atrophy by promoting myoblast differentiation and repair, and reducing the expression of muscle atrophy-related molecules.
Article
Biochemistry & Molecular Biology
Sang-Ah Lee, Chang Gyun Park, Maranda Esterhuizen, Ian Choi, Chang Seon Ryu, Ji Hun Yang, Young Jun Kim
Summary: This study compared the effects of nine disinfection byproducts (DBPs) on zebrafish and human estrogen receptor alpha (zER alpha and hER alpha). It found that some DBPs exhibited estrogenic activity on hER alpha but anti-estrogenic activity on zER alpha. These findings highlight the species-specific effects of DBPs on estrogenic activities.
FRONTIERS IN BIOSCIENCE-LANDMARK
(2023)
Article
Engineering, Electrical & Electronic
Dinda Fariesta Nugraha, Danbi Kim, Eunhye Yang, Seok Woo Lee, Dong Ryeol Whang, Sang A. Lee, Sung Heum Park, Dong Wook Chang
Summary: A series of quinoxaline-based D-A-type polymers with electron-withdrawing or electron-donating groups were developed to study their impact on photovoltaic efficiency. Two objective polymers, PBF-CF(3)QxF and PBF-CF(3)QxM, were obtained by selectively adding fluorine atoms and methoxy units on the 6,7-positions of the quinoxaline unit of the reference polymer PBF-CF3Qx. Due to the influence of these substituents, each polymer exhibited distinct optical, electrochemical, and morphological features. Furthermore, the nonfullerene photovoltaic devices based on PBF-CF(3)QxF and PBF-CF(3)QxM showed higher power conversion efficiencies of 11.37% and 11.18%, respectively, compared to the device based on the reference polymer (6.96%). These results highlight the importance of electron-withdrawing and electron-donating substituents in quinoxaline-based polymers for controlling their intrinsic and photovoltaic attributes.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hyeonsu Kim, Dong-Hyun Kim, Yunjo Jeong, Dong-Su Lee, Jangyup Son, Sangmin An
Summary: Researchers demonstrate the tailoring of a chemical gradient on graphene surfaces through direct mechanochemical cleavage of atoms. They characterize the fabricated sample using lateral force microscopy and clean the obtained images using a machine learning method. This work provides a useful technique for applications utilizing continuous changes in the surface energy of graphene.
NANOSCALE ADVANCES
(2023)
Article
Engineering, Electrical & Electronic
Dinda Fariesta Nugraha, Danbi Kim, Eunhye Yang, Seok Woo Lee, Dong Ryeol Whang, Sang A. Lee, Sung Heum Park, Dong Wook Chang
Summary: A series of quinoxaline-based D-A-type polymers with electron-withdrawing or electron-donating groups were developed and their impact on photovoltaic efficiency was explored. By modifying the quinoxaline unit of a reference polymer, two objective polymers were obtained with extra fluorine atoms and methoxy units. These polymers demonstrated distinct optical, electrochemical, and morphological features due to the influence of the electron-withdrawing or electron-donating substituents. Furthermore, nonfullerene photovoltaic devices based on these polymers exhibited significantly higher power conversion efficiencies compared to the reference polymer, highlighting the importance of the substituted groups in controlling the intrinsic and photovoltaic attributes of quinoxaline-based polymers.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Environmental Sciences
Maranda Esterhuizen, Sang-Ah Lee, Riikka Jarvinen, Youngsam Kim, Stephan Pflugmacher, Young Jun Kim
Summary: This study investigates the adverse effects of polystyrene fragments on the oxidative stress status and enzymatic antioxidant response in daphnids. It finds that adult daphnids are able to restore redox homeostasis within 48 hours through elevated enzyme activities, while neonates rely on non-enzymatic antioxidants. The study suggests that daphnids can serve as ideal bioindicator organisms to study the harmful effects of microplastics in the environment.
WATER AIR AND SOIL POLLUTION
(2023)