4,006 results match your criteria: "Daejeon 34134; R&D Center[Affiliation]"
Foods
September 2024
Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
Cancers (Basel)
September 2024
Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic of Korea.
: Head and neck squamous cell carcinoma (HNSC) is the most prevalent cancer in the head and neck region, originating from the mucosal epithelium of the oral cavity, pharynx, and larynx. The solute carrier (SLC) transporter superfamily, consisting of over 400 proteins across 65 families, plays a crucial role in cellular functions and presents promising targets in precision oncology. This study aims to analyze the expression of SLC transporters in HNSC and their potential as biomarkers and therapeutic targets.
View Article and Find Full Text PDFBiomolecules
August 2024
Department of Bio-AI Convergence, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
J Fungi (Basel)
September 2024
Department of Biology, Chungbuk National University, Cheongju 28644, Republic of Korea.
Curr Issues Mol Biol
August 2024
Department of Neurosurgery, Chungnam National University Sejong Hospital, Sejong 30099, Republic of Korea.
This study investigated the potential of phosphodiesterase type 5 (PDE-5) inhibitors, specifically tadalafil, in preventing the delayed cerebral ischemia (DCI) post-rupture of cerebral aneurysms. A total of 19 rabbits were used in this study, divided into different treatment groups, including nimodipine alone, tadalafil alone, and a combination of nimodipine and tadalafil. Both nimodipine and tadalafil showed some impact on reducing endothelial apoptosis in the basilar arteries, although the effects were not statistically significant.
View Article and Find Full Text PDFSmall
December 2024
Department of Chemical Engineering & Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea.
Lithium-sulfur (Li-S) battery is a potential next-generation energy storage technology over lithium-ion batteries for high capacity, cost-effective, and environmentally friendly solutions. However, several issues including polysulfides shuttle, low conductivity and limited rate-capability have hampered its practical application. Herein, a new class of cathode active material with perfect core-shell structure is reported, in which sulfur is fully encapsulated by conductivity-enhancing FeS (named as S@FeS), for high-rate application.
View Article and Find Full Text PDFAdv Mater
November 2024
School of Mechanical Engineering, Sungkyunkwan University, Suwon, 16419, South Korea.
Recently, researchers have been investigating artificial ferroelectricity, which arises when inversion symmetry is broken in certain R-stacked, i.e., zero-degree twisted, van der Waals (vdW) bilayers.
View Article and Find Full Text PDFHeliyon
September 2024
Korea Institute of Machinery and Materials, 156 Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, Republic of Korea.
Currently generated nitrogen oxides (NO) and unburned ammonia (NH) can be converted into nitrogen and moisture that are harmless to the human body and environment using selective catalytic reduction (SCR). The concentrations of NO and unburned NH emitted from the ammonia combustion engines are significantly higher than those emitted by engines using existing hydrocarbon fuels. In this study, ammonia, a representative carbon-free fuel, was used in spark ignition engines for existing passenger vehicles to identify the trends in exhaust gases emitted from engines and conduct experiments on after-treatment strategies to reduce NO and unburned NH.
View Article and Find Full Text PDFAdv Sci (Weinh)
November 2024
Department of Materials Science and Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea.
The rapid development of the electronics market necessitates energy storage devices characterized by high energy density and capacity, alongside the ability to maintain stable and safe operation under harsh conditions, particularly elevated temperatures. In this study, a semi-solid-state electrolyte (SSSE) for Li-metal batteries (LMB) is synthesized by integrating metal-organic frameworks (MOFs) as host materials featuring a hierarchical pore structure. A trace amount of liquid electrolyte (LE) is entrapped within these pores through electrochemical activation.
View Article and Find Full Text PDFAdv Sci (Weinh)
November 2024
Department of Materials Science and Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea.
The surface oxidation of 2D transition metal dichalcogenides (TMDs) has recently gained tremendous technological and fundamental interest owing to the multi-functional properties that the surface oxidized layer opens up. In particular, when integrated into other 2D materials in the form of van der Waals heterostructures, oxidized TMDs enable designer properties, including novel electronic states, engineered light-matter interactions, and exceptional-point singularities, among many others. Here, the evolving landscapes of the state-of-the-art surface engineering technologies that enable controlled oxidation of TMDs down to the monolayer-by-monolayer limit are reviewed.
View Article and Find Full Text PDFInt J Biol Macromol
November 2024
Department of Polymer Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea; Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea. Electronic address:
Thermo-responsive hydrogels (thermogels), known for their sol-gel transition capabilities, have garnered significant interest for biomedical applications over recent decades. However, conventional thermogels are hindered by intrinsic physicochemical and functional limitations that impede their broader utility. This study introduces methacryl glycol chitosan (MGC) as a novel thermogel, offering enhanced functionality and addressing these limitations.
View Article and Find Full Text PDFSci Total Environ
December 2024
Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea. Electronic address:
Food Chem
January 2025
Department of Organic Materials Engineering, Chungnam National University, Daejeon 34134, South Korea. Electronic address:
Approximately 30 % of global agricultural land is used to produce food that is ultimately lost or wasted, making it imperative to explore strategies for mitigating this waste. This study explored the potential of chitosan (CS) derivatives as edible coatings to extend food shelf life. Although soluble CS derivatives such as glycol CS are suitable coatings, their antimicrobial properties often diminish with increased solubility.
View Article and Find Full Text PDFGenes Dis
November 2024
Korean Medicine (KM) Data Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea.
Small
September 2024
School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea.
Hexagonal boron nitride (BN), a well-known member of 2D materials, has a structure similar to graphene and is often referred to as white graphene. Despite its unique physical and chemical properties for energy storage applications, there have been very few studies on how BN stores anion carriers. Herein, the hybrid architecture and anion storage mechanism of BN nanosheets for high-performance hybrid energy storage full cells based on dual-ion and Zinc (Zn) alkaline systems is demonstrated.
View Article and Find Full Text PDFJ Control Release
November 2024
College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
Future Oncol
October 2024
Division of Medical Oncology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, 06591, Republic of Korea.
Clinicians have recognized the similarities and differences between the two subtypes of common epidermal growth factor receptor (EGFR) mutations, but actual treatment strategies have not yet changed. The L858R mutation can be understood by considering the pharmacological conformational plasticity of the receptor protein and the presence of other co-occurring mutations, whether subtypes of EGFR or non-EGFR mutations and differences in downstream signaling pathways. As long as we know that molecular differences lead to biological differences, it is a challenge for all of us that our treatment strategies must change.
View Article and Find Full Text PDFSensors (Basel)
August 2024
Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Republic of Korea.
As interest in eco-friendly work vehicles grows, research on the powertrains of eco-friendly tractors has increased, including research on the development of eco-friendly vehicles (tractors) using hydrogen fuel cell power packs and batteries. However, batteries require a long time to charge and have a short operating time due to their low energy efficiency compared with hydrogen fuel cell power packs. Therefore, recent studies have focused on the development of tractors using hydrogen fuel cell power packs; however, there is a lack of research on powertrain performance analysis considering actual working conditions.
View Article and Find Full Text PDFMolecules
August 2024
Graduate School of New Drug Discovery and Development, Chungnam National University, Daejeon 34134, Republic of Korea.
Vepdegestrant (formerly ARV-471), a novel proteolysis-targeting chimera (PROTAC), targets estrogen receptor alpha (ERα) for degradation, offering a promising option to treat advanced ER-positive breast cancer. We developed and validated a sensitive and rapid liquid chromatography-tandem mass spectrometry method to quantify vepdegestrant in rodent plasma using bavdegalutamide (formerly ARV-110) as an internal standard. Plasma samples were prepared with protein precipitation using acetonitrile and analyzed using reverse-phase C18 columns and a mobile phase of 10 mM ammonium formate in distilled water and acetonitrile.
View Article and Find Full Text PDFPlants (Basel)
August 2024
Department of Agricultural Life Science, Sunchon National University, Suncheon 57922, Republic of Korea.
Int J Mol Sci
September 2024
Department of Bio-AI Convergence, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
Sci Rep
September 2024
Genetic and Epigenetic Toxicology Research Group, Korea Institute of Toxicology, Korea Institute of Toxicology, Daejeon, 34114, Republic of Korea.
The Ames test is used worldwide to initially screen the mutagenic potential of new chemicals. In the standard Ames test, S. typhimurium strains (TA100, TA98, TA1535, and TA1537) and Escherichia coli (WP2uvrA) are treated with substances with/without cytochrome P450s (CYPs)-induced rat S9 fractions for identifying mutagens and pro-mutagens.
View Article and Find Full Text PDFMar Pollut Bull
November 2024
School of Earth and Environmental Sciences & Research Institute of Oceanography, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:
Microalgal bioassays were conducted to evaluate the ecotoxicological effects of suspended sediments (SS) collected from coastal environments. Growth inhibition was assessed for six microalgal species, and multiple endpoints were measured using flow cytometry (FCM) and pulse-amplitude modulation (PAM) fluorometry for three species (Dunaliella tertiolecta, Isochrysis galbana, and Phaeodactylum tricornutum). Among these, the EC50 for growth inhibition of D.
View Article and Find Full Text PDFNanomaterials (Basel)
August 2024
Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea.
Two-dimensional (2D) materials have emerged as a promising candidate in the chemoresistive gas sensor field to overcome the disadvantages of conventional metal-oxide semiconductors owing to their strong surface activities and high surface-to-volume ratio. This review summarizes the various approaches to enhance the 2D-material-based gas sensors and provides an overview of their progress. The distinctive attributes of semiconductor gas sensors employing 2D materials will be highlighted with their inherent advantages and associated challenges.
View Article and Find Full Text PDFMeat Sci
January 2025
Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea. Electronic address:
The effects of cauliflower treated with atmospheric cold plasma (ACP), as a natural nitrite source, on the curing of ground ham and nitrosamine formation were investigated. Ground ham was prepared using sodium nitrite and ACP-treated cauliflower powder (PTCP) to achieve initial nitrite concentrations of 60 and 100 mg/kg, respectively. ACP treatment generated nitrite in cauliflower but significantly reduced the antioxidant activity (P < 0.
View Article and Find Full Text PDF