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| WoS | SCOPUS | Document Type | Document Title | Abstract | Authors | Affiliation | ResearcherID (WoS) | AuthorsID (SCOPUS) | Author Email(s) | Journal Name | JCR Abbreviation | ISSN | eISSN | Volume | Issue | WoS Edition | WoS Category | JCR Year | IF | JCR (%) | FWCI | FWCI Update Date | WoS Citation | SCOPUS Citation | Keywords (WoS) | KeywordsPlus (WoS) | Keywords (SCOPUS) | KeywordsPlus (SCOPUS) | Language | Publication Stage | Publication Year | Publication Date | DOI | JCR Link | DOI Link | WOS Link | SCOPUS Link |
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| ○ | ○ | Article | Assessment of Zinc-Bound Phosphate-Based Glass-Coated Denture-Relining Material with Antifungal Efficacy for Inhibiting Denture Stomatitis | This study investigated the surface properties, biocompatibility, and antifungal activity against Candida albicans of a denture-relining material coated with zinc-bound phosphate-based glass. First, zinc-bound phosphate-based glass was fabricated. A polymerized denture-relining disk was coated with zinc-bound phosphate-based glass (2%, 4%, and 6%). The surface properties of the control and experimental groups were measured, including the wettability, microhardness, color difference, and gloss. The biocompatibility was evaluated using the MTT assay according to ISO 10993-5. The antifungal activity was investigated by counting the number of colony-forming units of Candida albicans. The results were analyzed using a one-way ANOVA and Tukey's test (p = 0.05). The results of this study indicate that, despite the antimicrobial effect of zinc-bound phosphate-based glass, a coated denture-relining material does not degrade the surface properties and biocompatibility. Therefore, this novel material is considered promising for use as a dental material with antimicrobial properties that can potentially prevent denture stomatitis. | Oh, Sang-Hwan; Jung, Yun-Sook; Lee, Myung-Jin | Konyang Univ, Dept Dent Hyg, Daejeon 35365, South Korea; Kyungpook Natl Univ, Coll Sci & Technol, Dept Dent Hyg, Sangju 37224, South Korea; Baekseok Univ, Div Hlth Sci, Dept Dent Hyg, Cheonan 31065, South Korea | 57201084324; 57193342858; 57193572952 | dh.mjlee@bu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 17 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.29 | 2025-06-25 | 4 | 4 | antifungal efficacy; biocompatibility; Candida albicans; dental materials; surface characterization; zinc-bound phosphate-based glass | ANTIBACTERIAL ACTIVITY; SURFACE-ROUGHNESS; BIOCOMPATIBILITY; CYTOTOXICITY; LINERS; GLOSS | antifungal efficacy; biocompatibility; Candida albicans; dental materials; surface characterization; zinc-bound phosphate-based glass | English | 2022 | 2022-09 | 10.3390/nano12173048 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Bowtie Nanoantenna Coupled Metal-Oxide-Silicon (p-Doped) Diode for 28.3 THz IR Rectification | Low-temperature waste heat in the infrared (IR) wavelength region offers an opportunity to harvest power from waste energy and requires further investigation in order to find efficient conversion techniques. Although grating-coupled metal-oxide-semiconductor (MOS) diode devices offer efficient conversion from low and moderate-temperature thermal sources, the integration of such diodes with a nanoantenna structure has yet to be explored. We propose a bowtie nanoantenna coupled with a p-doped MOS diode for IR to direct current (DC) conversion without any bias voltage at 28.3 THz. The nanoantenna was designed and optimized to provide maximum field enhancement in a 4 nm-thick oxide layer at the resonant frequency. The device was fabricated following the complementary MOS (CMOS) fabrication process and measured in a custom DC and optical characterization setup using a 10.6 mu m wavelength CO2 laser. The results reveal two different types of devices with linear and nonlinear I-V curves having k omega and M omega zero-bias resistance, respectively. The linear device generates a micron-level open-circuit voltage (V-oc) with clear polarization dependence from the laser input, but the nonlinear case suffers from a weak noise-like signal. Finally, we analyze two types of devices using thermoelectric and tunneling effects and discuss the future direction of nanoantenna-integrated MOS devices for efficient IR harvesters. | Al Islam, Nasim; Choi, Sangjo | Univ Ulsan, Dept Elect Elect & Comp Engn, Ulsan 44610, South Korea; Kyungpook Natl Univ, Sch Elect Engn, Daegu 41566, South Korea | Islam, Nasim Al/LFU-6652-2024 | 57219514372; 36697690200 | sangjoc@knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 22 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.22 | 2025-06-25 | 3 | 3 | THz energy harvesting; MOS diode; plasmonic nanoantenna; low-temperature waste heat | OPTICAL-PROPERTIES | low-temperature waste heat; MOS diode; plasmonic nanoantenna; THz energy harvesting | English | 2022 | 2022-11 | 10.3390/nano12223940 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Characterization of Silver Nanowire-Based Transparent Electrodes Obtained Using Different Drying Methods | Metal-based transparent top electrodes allow electronic devices to achieve transparency, thereby expanding their application range. Silver nanowire (AgNW)-based transparent electrodes can function as transparent top electrodes, owing to their excellent conductivity and transmittance. However, they require a high-temperature drying process, which damages the bottom functional layers. Here, we fabricated two types of AgNW-based electrodes using the following three drying methods: thermal, room-temperature, and vacuum. Thereafter, we investigated the variation in their morphological, electrical, and optical characteristics as a function of the drying method and duration. When the AgNW-exposed electrode was dried at room temperature, it exhibited a high surface roughness and low conductivity, owing to the slow solvent evaporation. However, under vacuum, it exhibited a similar electrical conductivity to that achieved by thermal drying because of the decreased solvent boiling point and fast solvent evaporation. Conversely, the AgNW-embedded electrodes exhibited similar roughness values and electrical conductivities regardless of the drying method applied. This was because the polymer shrinkage during the AgNW embedding process generated capillary force and improved the interconnectivity between the nanowires. The AgNW-based electrodes exhibited similar optical properties regardless of the drying method and electrode type. This study reveals that vacuum drying can afford transparent top electrodes without damaging functional layers. | Chu, Seo Bum; Ko, Dongwook; Jung, Jinwook; Jo, Sungjin; Hyun, Dong Choon; Oh, Hyeon-Ju; Kim, Jongbok | Kumoh Natl Inst Technol, Dept Mat Sci & Engn, Gumi 39177, South Korea; Kyungpook Natl Univ, Sch Architectural Civil Environm & Energy Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Dept Polymer Sci & Engn, Daegu 41566, South Korea; Kumoh Natl Inst Technol, Adv Mat Res Ctr, Gumi 39177, South Korea; Kumoh Natl Inst Technol, Dept Energy Engn Convergence, Gumi 39177, South Korea | Oh, Hyeon-Ju/ABH-2809-2020 | 57428304300; 24479440600; 57193111722; 7101724027; 15834575400; 56362812200; 15762365000 | csb5453@naver.com;duko1293@gmail.com;jkim3161@gmail.com;sungjin@knu.ac.kr;dong.hyun@knu.ac.kr;smju26@gmail.com;jbkim@kumoh.ac.kr;smju26@kumoh.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 3 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.15 | 2025-06-25 | 2 | 2 | silver nanowire; transparent electrode; drying method; electrical property; morphology | PEROVSKITE SOLAR-CELL; OXIDE | Drying method; Electrical property; Morphology; Silver nanowire; Transparent electrode | English | 2022 | 2022-02 | 10.3390/nano12030461 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Compact SnO2/Mesoporous TiO2 Bilayer Electron Transport Layer for Perovskite Solar Cells Fabricated at Low Process Temperature | Charge transport layers have been found to be crucial for high-performance perovskite solar cells (PSCs). SnO2 has been extensively investigated as an alternative material for the traditional TiO2 electron transport layer (ETL). The challenges facing the successful application of SnO2 ETLs are degradation during the high-temperature process and voltage loss due to the lower conduction band. To achieve highly efficient PSCs using a SnO2 ETL, low-temperature-processed mesoporous TiO2 (LT m-TiO2) was combined with compact SnO2 to construct a bilayer ETL. The use of LT m-TiO2 can prevent the degradation of SnO2 as well as enlarge the interfacial contacts between the light-absorbing layer and the ETL. SnO2/TiO2 bilayer-based PSCs showed much higher power conversion efficiency than single SnO2 ETL-based PSCs. | Lee, Junyeong; Kim, Jongbok; Kim, Chang-Su; Jo, Sungjin | Kyungpook Natl Univ, Sch Energy Engn, Daegu 41566, South Korea; Kumoh Natl Inst Technol, Dept Mat Sci & Engn, Gumi 39177, South Korea; Korea Inst Mat Sci, Surface Technol Div, Dept Adv Funct Thin Films, Chang Won 51508, South Korea | 58853044900; 15762365000; 57201346735; 7101724027 | junyeong112@knu.ac.kr;jbkim@kumoh.ac.kr;cskim1025@kims.re.kr;sungjin@knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 4 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 1.31 | 2025-06-25 | 17 | 18 | compact SnO2; mesoporous TiO2; oxygen plasma; perovskite solar cell low process temperature | SNO2; EFFICIENCY | Compact SnO<sub>2</sub>; Mesoporous TiO<sub>2</sub>; Oxygen plasma; Perovskite solar cell low process temperature | English | 2022 | 2022-02 | 10.3390/nano12040718 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Design of a Capacitorless DRAM Based on a Polycrystalline-Silicon Dual-Gate MOSFET with a Fin-Shaped Structure | In this study, a capacitorless one-transistor dynamic random-access memory (1T-DRAM) cell based on a polycrystalline silicon dual-gate metal-oxide-semiconductor field-effect transistor with a fin-shaped structure was optimized and analyzed using technology computer-aided design simulation. The proposed 1T-DRAM demonstrated improved memory characteristics owing to the adoption of the fin-shaped structure on the side of gate 2. This was because the holes generated during the program operation were collected on the side of gate 2, allowing an expansion of the area where the holes were stored using the fin-shaped structure. Therefore, compared with other previously reported 1T-DRAM structures, the fin-shaped structure has a relatively high retention time due to the increased hole storage area. The proposed 1T-DRAM cell exhibited a sensing margin of 2.51 mu A/mu m and retention time of 598 ms at T = 358 K. The proposed 1T-DRAM has high retention time and chip density, so there is a possibility that it will replace DRAM installed in various applications such as PCs, mobile phones, and servers in the future. | An, Hee Dae; Lee, Sang Ho; Park, Jin; Min, So Ra; Kim, Geon Uk; Yoon, Young Jun; Seo, Jae Hwa; Cho, Min Su; Jang, Jaewon; Bae, Jin-Hyuk; Lee, Sin-Hyung; Kang, In Man | Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu 41566, South Korea; Korea Atom Energy Res Inst, Korea Multipurpose Accelerator Complex, Gyeongju 38180, South Korea; Power Semicond Res Ctr, Korea Electrotechnol Res Inst, Chang Won 51543, South Korea; RF Mixed Signal Dev Team, DB HiTek, Eumseong 27605, South Korea | ; Lee, Sin-Hyung/ABD-6425-2022; Seo, Jae Hwa/KYP-7367-2024; Lee, Sang Ho/MCX-8396-2025 | 57539074100; 57416738400; 57376422900; 57671524600; 57727029200; 57218864885; 58837410100; 59815822100; 57194107504; 35326180700; 57226880204; 7203062678 | imkang@ee.knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 19 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.51 | 2025-06-25 | 5 | 7 | dual-gate; grain boundary; polycrystalline silicon; 1T-DRAM; metal-oxide-semiconductor field-effect transistor; sensing margin; retention time | FIELD-EFFECT TRANSISTOR; 1T DRAM; RETENTION TIME; WORK FUNCTION; LESS 1T-DRAM; BODY; CELL; IMPROVEMENT; CHALLENGES | 1T-DRAM; dual-gate; grain boundary; metal-oxide-semiconductor field-effect transistor; polycrystalline silicon; retention time; sensing margin | English | 2022 | 2022-10 | 10.3390/nano12193526 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Review | Exfoliation of MoS2 Quantum Dots: Recent Progress and Challenges | Although, quantum dots (QDs) of two-dimensional (2D) molybdenum disulfide (MoS2) have shown great potential for various applications, such as sensing, catalysis, energy storage, and electronics. However, the lack of a simple, scalable, and inexpensive fabrication method for QDs is still a challenge. To overcome this challenge, a lot of attention has been given to the fabrication of QDs, and several fabrication strategies have been established. These exfoliation processes are mainly divided into two categories, the 'top-down' and 'bottom-up' methods. In this review, we have discussed different top-down exfoliation methods used for the fabrication of MoS2 QDs and the advantages and limitations of these methods. A detailed description of the various properties of QDs is also presented. | Ali, Luqman; Subhan, Fazle; Ayaz, Muhammad; ul Hassan, Syed Shams; Byeon, Clare Chisu; Kim, Jong Su; Bungau, Simona | Yeungnam Univ, Dept Phys, Gyongsan 38541, South Korea; Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea; Univ Lakki Marwat, Dept Phys, Lakki Marwat 28420, Pakistan; Univ Malakand, Fac Biol Sci, Dept Pharm, Chakdara 18000, Pakistan; Shanghai Jiao Tong Univ, Sch Pharm, Shanghai Key Lab Mol Engn Chiral Drugs, Shanghai 200240, Peoples R China; Shanghai Jiao Tong Univ, Sch Pharm, Dept Nat Prod Chem, Shanghai 200240, Peoples R China; Univ Oradea, Fac Med & Pharm, Dept Pharm, Oradea 410028, Romania | Ayaz, Muhammad/J-9998-2019; Hassan, Syed Shams ul/I-5382-2019; Bungau, Simona Gabriela/C-1831-2015; Hassan, Syed shams ul/I-5382-2019; Subhan, Fazle/GOH-1958-2022; ALI, LUQMAN/LDF-2311-2024 | 57212543197; 36919223800; 59780924100; 57190126642; 55987812100; 55863440700; 15071683900 | shams1327@yahoo.com;jongsukim@ynu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 19 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.75 | 2025-06-25 | 27 | 29 | 2D materials; graphene; MoS2; quantum dots; exfoliation | RESONANCE ENERGY-TRANSFER; LIQUID-PHASE EXFOLIATION; MONOLAYER MOS2; SINGLE-LAYER; GRAPHENE; NANOSHEETS; FACILE; PHOTOLUMINESCENCE; NANOPARTICLES; TRANSISTORS | 2D materials; exfoliation; graphene; MoS<sub>2</sub>; quantum dots | English | 2022 | 2022-10 | 10.3390/nano12193465 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Factors determining the oral absorption and systemic disposition of zeaxanthin in rats: in vitro, in situ, and in vivo evaluations | Context Zeaxanthin is a yellow-coloured dietary carotenoid widely recognized as an essential component of the macula. It exerts blue light filtering and antioxidant activities, offering eye health and vision benefits. Objective This study explores the oral absorption and systemic disposition of zeaxanthin from biopharmaceutical and pharmacokinetic perspectives. Materials and methods In vivo intravenous (5 and 10 mg/kg) and intraportal (5 mg/kg) pharmacokinetic studies were performed to determine intrinsic tissue-blood partition coefficient, elimination pathway, and hepatic clearance, of zeaxanthin in rats. Moreover, in vitro physicochemical property test, in situ closed loop study, in vivo oral pharmacokinetic study (20 and 100 mg/kg), and in vivo lymphatic absorption study (100 mg/kg) were conducted to investigate the gut absorption properties of zeaxanthin and assess the effects of several lipids on the lymphatic absorption of zeaxanthin in rats. Results Zeaxanthin exhibited poor solubility (= 84.7%) of the dose remained unabsorbed across the entire gut tract. Considerable fractions of intravenous zeaxanthin accumulated in the liver, lung, and spleen (21.3, 11.7, and 2.0%, respectively). It was found that the liver is the major eliminating organ of zeaxanthin, accounting for 53.5-90.1% of the total clearance process (hepatic extraction ratio of 0.623). Discussion and conclusions To our knowledge, this is the first systematic study to report factors that determine the oral bioavailability and systemic clearance of zeaxanthin. | Seo, Seong-Wook; Han, Dong-Gyun; Choi, Eugene; Seo, Min-Jeong; Song, Im-Sook; Yoon, In-Soo | Pusan Natl Univ, Res Inst Drug Dev, Busan, South Korea; Nakdong Gang Natl Inst Biol Resources NNIBR, Freshwater Biosources Utilizat Bur, Bioresources Industrializat Support Div, Sangju Si, South Korea; Kyungpook Natl Univ, Res Inst Pharmaceut Sci, Coll Pharm, Vessel Organ Interact Res Ctr VOICE,BK21 FOUR Com, Daegu, South Korea; Pusan Natl Univ, Coll Pharm, Dept Mfg Pharm, 2 Busandaehak Ro,63 Beon Gil, Busan 46241, South Korea; Kyungpook Natl Univ, Res Inst Pharmaceut Sci, Vessel Organ Interact Res Ctr VOICE, Coll Pharm,BK21 FOUR Community Based Intelligent, 80 Daehak Ro, Daegu 41566, South Korea | ; Yoon, In-Soo/ABG-2948-2021 | 57972374500; 57204502732; 57367040700; 57971748000; 57971550000; 58584367700 | isssong@knu.ac.kr;insoo.yoon@pusan.ac.kr; | PHARMACEUTICAL BIOLOGY | PHARM BIOL | 1388-0209 | 1744-5116 | 60 | 1 | SCIE | MEDICAL LABORATORY TECHNOLOGY;PHARMACOLOGY & PHARMACY;PLANT SCIENCES | 2022 | 3.8 | 24.1 | 0.48 | 2025-06-25 | 4 | 4 | Physicochemical property; gut absorption; tissue distribution; hepatic clearance; lymphatic absorption; oral bioavailability | LUTEIN; CAROTENOIDS; EXPRESSION; IDENTIFICATION | gut absorption; hepatic clearance; lymphatic absorption; oral bioavailability; Physicochemical property; tissue distribution | Animals; Antioxidants; Biological Availability; Carotenoids; Liver; Rats; Zeaxanthins; beta cryptoxanthin; carotenoid; macrogol 400; oleic acid; xanthophyll; zeaxanthin; antioxidant; carotenoid; zeaxanthin; animal experiment; animal model; animal tissue; Article; bioavailability; data analysis; drug disposition; extraction ratio; male; nonhuman; oral absorption; physical chemistry; quality control; rat; animal; liver; metabolism | English | 2022 | 2022-12-31 | 10.1080/13880209.2022.2143534 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | High Color Purity Plasmonic Color Filter by One-Dimensional Photonic Crystals | Structural colors have been reported instead of conventional dye- or pigment-based color filters. Color selectivity can degrade as structure-based optical resonances are accompanied by several resonance modes. In this work, we suggest a simple and effective design of the plasmonic color filter (PCF) that integrated the PCF with the one-dimensional (1D) photonic crystal (PhC). The introduced PhC creates an optical band gap and suppresses undesired peaks of the PCF caused by the high-order resonance mode. Finally, the suggested structure provides a high color purity. This study can be a guideline for technology that replaces conventional color filters. | Kim, Jun Yong; Cho, Hyo Jong; Do, Yun Seon | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehak Ro, Daegu 41566, South Korea | Kim, Dae/AAJ-7518-2021 | 57209837877; 57216649076; 24338060500 | rhawns4567@knu.ac.kr;chj5611@knu.ac.kr;yuns.do@knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 10 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.22 | 2025-06-25 | 3 | 3 | nanostructure; surface plasmonics; photonic crystal; color filter | OPTICAL-TRANSMISSION; BAND | color filter; nanostructure; photonic crystal; surface plasmonics | English | 2022 | 2022-05 | 10.3390/nano12101694 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | High Device Performances and Noise Characteristics of AlGaN/GaN HEMTs Using In Situ SiCN and SiN Cap Layer | We fabricated and characterized AlGaN/GaN high-electron mobility transistors (HEMTs) with a nano-sized in situ cap layer (one is a silicon carbon nitride (SiCN) layer, and the other is a silicon nitride (SiN) layer) comparing to the conventional device without an in situ cap layer. The pulse characteristics and noise behaviors for two devices with in situ cap layers are much superior to those of the reference device without a cap layer, which means that the in situ cap layer effectively passivates the AlGaN surface. On the other hand, the device with an in situ SiCN cap layer showed the excellent device characteristics and noise performances compared to the other devices because of the reduced positive ionic charges and enhanced surface morphology caused by carbon (C) surfactant atoms during the growth of the SiCN cap layer. These results indicate that the AlGaN/GaN HEMT with the in situ SiCN cap layer is very promising for the next high-power device by replacing the conventional HEMT. | Im, Ki-Sik; Mallem, Siva Pratap Reddy; Choi, Jin-Seok; Hwang, Young-Min; Roh, Jae-Seung; An, Sung-Jin; Lee, Jae-Hoon | Kumoh Natl Inst Technol, Adv Mat Res Ctr, Gumi 39177, South Korea; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Kumoh Natl Inst Technol, Dept Adv Mat Sci & Engn, Gumi 39177, South Korea; Samsung Elect Co Ltd, Foundry, Yield Enhancement Team, Pyeongtaek 17789, South Korea | An, Sung/A-2869-2009 | 8679677600; 55422639100; 59041368600; 57208759642; 56425149400; 58349582600; 56023466800 | ksim@kumoh.ac.kr;dr.mspreddy@gmail.com;choijs1220@kumoh.ac.kr;hdhym@kumoh.ac.kr;jsroh@kumoh.ac.kr;sungiinan@kumoh.ac.kr;jaehoon03.lee@samsung.com; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 4 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.15 | 2025-06-25 | 2 | 2 | AlGaN; GaN HEMT; in situ cap layer; low-frequency noise; pulse measurement | LOW-FREQUENCY NOISE; SURFACE PASSIVATION; SILICON; GAN | AlGaN/GaN HEMT; In situ cap layer; Low-frequency noise; Pulse measurement | English | 2022 | 2022-02 | 10.3390/nano12040643 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Importance of Structural Relaxation on the Electrical Characteristics and Bias Stability of Solution-Processed ZnSnO Thin-Film Transistors | Effect of structural relaxation (SR) on the electrical characteristics and bias stability of solution-processed zinc-tin oxide (ZTO) thin-film transistors (TFTs) were systematically investigated by controlling the annealing time of the ZTO semiconductor films. Note that SR was found to increase with increased annealing time. Due to the increased SR, the ratio of oxygen vacancies (V-O) increased from 21.5% to 38.2%. According to increased V-O, the mobility in the saturation region was exhibited by a sixfold increase from 0.38 to 2.41 cm(2) V-1 s(-1). In addition, we found that the threshold voltage negatively shifted from 3.08 to -0.95 V. Regarding the issue of bias stability, according to increased SR, positive-bias stress of the ZTO TFTs was enhanced, compared with reverse features of negative-bias stress. Our understanding is expected to provide a basic way to improve the electrical characteristics and bias stability of rare-metal-free oxide semiconductor TFTs, which have not been sufficiently studied. | Hwang, Yu-Jin; Kim, Do-Kyung; Jeon, Sang-Hwa; Wang, Ziyuan; Park, Jaehoon; Lee, Sin-Hyung; Jang, Jaewon; Kang, In Man; Bae, Jin-Hyuk | Kyungpook Natl Univ, Sch Elect & Elect Engn, 80 Daehakro, Daegu 41566, South Korea; Hallym Univ, Dept Elect Engn, Chunchon 24252, South Korea; Kyungpook Natl Univ, Sch Elect Engn, 80 Daehakro, Daegu 41566, South Korea | , Do Kyung Kim/A-5289-2008; Lee, Sin-Hyung/ABD-6425-2022; Wang, Ziyuan/KIC-5864-2024 | 57553088900; 57984042900; 57552166800; 57552166900; 55717156300; 57226880204; 57194107504; 7203062678; 35326180700 | jhbae@ee.knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 18 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.36 | 2025-06-25 | 5 | 5 | structural relaxation; electrical characteristics; bias stability; zinc-tin oxide; thin-film transistor; solution process | PERFORMANCE; TEMPERATURE; ENHANCEMENT; INSTABILITY | bias stability; electrical characteristics; solution process; structural relaxation; thin-film transistor; zinc–tin oxide | English | 2022 | 2022-09 | 10.3390/nano12183097 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Improvement of Nanostructured Polythiophene Film Uniformity Using a Cruciform Electrode and Substrate Rotation in Atmospheric Pressure Plasma Polymerization | In atmospheric pressure (AP) plasma polymerization, increasing the effective volume of the plasma medium by expanding the plasma-generating region within the plasma reactor is considered a simple method to create regular and uniform polymer films. Here, we propose a newly designed AP plasma reactor with a cruciform wire electrode that can expand the discharge volume. Based on the plasma vessel configuration, which consists of a wide tube and a substrate stand, two tungsten wires crossed at 90 degrees are used as a common powered electrode in consideration of two-dimensional spatial expansion. In the wire electrode, which is partially covered by a glass capillary, discharge occurs at the boundary where the capillary terminates, so that the discharge region is divided into fourths along the cruciform electrode and the discharge volume can successfully expand. It is confirmed that although a discharge imbalance in the four regions of the AP plasma reactor can adversely affect the uniformity of the polymerized, nanostructured polymer film, rotating the substrate using a turntable can significantly improve the film uniformity. With this AP plasma reactor, nanostructured polythiophene (PTh) films are synthesized and the morphology and chemical properties of the PTh nanostructure, as well as the PTh-film uniformity and electrical properties, are investigated in detail. | Kim, Jae Young; Jang, Hyo Jun; Bae, Gyu Tae; Park, Choon-Sang; Jung, Eun Young; Tae, Heung-Sik | Kyungpook Natl Univ, Sch Elect & Elect Engn, Coll IT Engn, Daegu 41566, South Korea; Kansas State Univ, Dept Elect & Comp Engn, Coll Engn, Manhattan, KS 66506 USA; Kyungpook Natl Univ, Sch Elect Engn, Coll IT Engn, Daegu 41566, South Korea | 57205191453; 57207956623; 57202369078; 16025295400; 57203199724; 7006298844 | jyk@knu.ac.kr;bs00201@knu.ac.kr;doctor047@knu.ac.kr;purplepcs@ksu.edu;eyjung@knu.ac.kr;hstae@ee.knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 1 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.29 | 2025-06-25 | 6 | 4 | atmospheric pressure plasma polymerization; conjugated polymer film; plasma polymerization; plasma synthesis; polythiophene nanostructure | ELECTRICAL-PROPERTIES; CONDUCTING POLYMER; DEPOSITION; THIOPHENE; PYRROLE; REMOTE; RF | Atmospheric pressure plasma polymerization; Conjugated polymer film; Plasma polymerization; Plasma synthesis; Polythiophene nanostructure | English | 2022 | 2022-01 | 10.3390/nano12010032 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||
| ○ | ○ | Article | Microwave-Assisted Synthesis of Reduced Graphene Oxide with Hollow Nanostructure for Application to Lithium-Ion Batteries | In this study, reduced graphene oxide (RGO) with a hollow nanostructure was successfully synthesized by layer-by-layer self-assembly using electrostatic interactions and van der Waals forces between building blocks, and its lithium storage characteristics were investigated. After 800 cycles at a current density of 1 A/g, the microwave-irradiated RGO hollow spheres (MRGO-HS) maintained a capacity of 626 mA h/g. In addition, when the charge/discharge capacity was measured stepwise in the current density range of 0.1-2 A/g, the discharge capacity of the RGO rapidly decreased to 156 mA h/g even at the current density of 2 A/g, whereas MRGO-HS provided a capacity of 252 mA h/g. Even after the current density was restored at a current density of 0.1 A/g, the MRGO-HS capacity was maintained to be 827 mA h/g at the 100th cycle, which is close to the original reversible capacity. Thus, MRGO-HS provides a higher capacity and better rate capability than those of traditionally synthesized RGO. | Lee, Minseop; Paek, Seung-Min | Kyungpook Natl Univ, Dept Chem, Daegu 41566, South Korea | Paek, Seung-Min/E-4667-2011; Lee, Minseop/JVZ-7552-2024 | 57201550392; 7102686289 | shlee6697@naver.com;smpaek@knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 9 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 1.09 | 2025-06-25 | 16 | 15 | reduced graphene oxide; lithium-ion batteries; Exfoliation; hollow spheres; layer-by-layer self-assembly | GRAPHITE OXIDE; FACILE SYNTHESIS; CARBON SPHERES; ANODE MATERIAL; REDUCTION; PERFORMANCE; STORAGE; NANOSHEETS; ROUTE; NANOPARTICLES | Exfoliation; hollow spheres; layer-by-layer self-assembly; lithium-ion batteries; reduced graphene oxide | English | 2022 | 2022-05 | 10.3390/nano12091507 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Polyethylenimine-Coated Ultrasmall Holmium Oxide Nanoparticles: Synthesis, Characterization, Cytotoxicities, and Water Proton Spin Relaxivities | Water proton spin relaxivities, colloidal stability, and biocompatibility of nanoparticle magnetic resonance imaging (MRI) contrast agents depend on surface-coating ligands. In this study, hydrophilic and biocompatible polyethylenimines (PEIs) of different sizes (M-n = 1200 and 60,000 amu) were used as surface-coating ligands for ultrasmall holmium oxide (Ho2O3) nanoparticles. The synthesized PEI1200- and PEI60000-coated ultrasmall Ho2O3 nanoparticles, with an average particle diameter of 2.05 and 1.90 nm, respectively, demonstrated low cellular cytotoxicities, good colloidal stability, and appreciable transverse water proton spin relaxivities (r(2)) of 13.1 and 9.9 s(-1)mM(-1), respectively, in a 3.0 T MR field with negligible longitudinal water proton spin relaxivities (r(1)) (i.e., 0.1 s(-1)mM(-1)) for both samples. Consequently, for both samples, the dose-dependent contrast changes in the longitudinal (R-1) and transverse (R-2) relaxation rate map images were negligible and appreciable, respectively, indicating their potential as efficient transverse T-2 MRI contrast agents in vitro. | Liu, Shuwen; Yue, Huan; Ho, Son Long; Kim, Soyeon; Park, Ji Ae; Tegafaw, Tirusew; Ahmad, Mohammad Yaseen; Kim, Seungho; Al Saidi, Abdullah Khamis Ali; Zhao, Dejun; Liu, Ying; Nam, Sung-Wook; Chae, Kwon Seok; Chang, Yongmin; Lee, Gang Ho | Kyungpook Natl Univ, Dept Chem, Coll Nat Sci, Taegu 41566, South Korea; Korea Inst Radiol & Med Sci KIRAMS, Div RI Convergence Res, Seoul 01817, South Korea; Kyungpook Natl Univ, Dept Med & Biol Engn, Taegu 41944, South Korea; Kyungpook Natl Univ, Sch Med, Dept Mol Med, Taegu 41944, South Korea; Kyungpook Natl Univ, Dept Biol Educ, Teachers Coll, Taegu 41566, South Korea | ; Nam, Sung-Wook/V-5519-2019; Ho, Son Long/P-3183-2015; Ahmad, Mohammad/AAH-2164-2020 | 57208926248; 57200329016; 55659242700; 57203773250; 16319690600; 55983618600; 57203054570; 57218284791; 57217492867; 57222567792; 57221731093; 16167127700; 15743626400; 7501840633; 7404851841 | liushuwen0701@gmail.com;yuehuan888@gmail.com;sonlongh@gmail.com;ksy0188@kirams.re.kr;jpark@kirams.re.kr;tirukorea@gmail.com;yaseen.knu@gmail.com;seungho5335@gmail.com;abdullah_al_saidi@hotmail.com;djzhao.chem@gmail.com;ly1124161@gmail.com;nams@knu.ac.kr;kschae@knu.ac.kr;ychang@knu.ac.kr;ghlee@mail.knu.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 9 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.65 | 2025-06-25 | 7 | 9 | Ho2O3; ultrasmall nanoparticle; polyethylenimine coating; relaxivity; cytotoxicity | PARALLEL MULTIPARAMETER; FE3O4 NANOPARTICLES; MAGNETIC-PROPERTIES; FACILE SYNTHESIS; CONTRAST AGENTS; PEI; TRANSFECTION; NANOCRYSTALS; CLEARANCE; T-1 | cytotoxicity; Ho2O3; polyethylenimine coating; relaxivity; ultrasmall nanoparticle | English | 2022 | 2022-05 | 10.3390/nano12091588 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | PTP1B and α-glucosidase inhibitory activities of the chemical constituents from Hedera rhombea fruits: Kinetic analysis and molecular docking simulation | In this study, we present the first investigation of Hedera rhombea Bean fruit, which led to the isolation of six undescribed compounds including two megastigmane glucosides, two rare 1,4-dioxane neolignanes, and two quinic acid derivatives, together with 26 known compounds. Their structures and absolute configurations were elucidated by extensive analysis of NMR spectroscopic data, HRMS, and ECD calculations. This is the first report on the isolation of methyl 3-O-caffeoyl 5-O-p-coumamylquinate from a natural source. Among the isolated compounds, falcarindiol and caffeoyltryptophan showed significant PTP1B inhibition with IC50 values of 7.32 and 16.99 mu M, respectively, compared to those of the positive controls [sodium orthovanadate (IC50 = 17.96 mu M) and ursolic acid (IC50 = 4.53 mu M)]. These two compounds along with several other compounds displayed significant a-glucosidase inhibitions with IC50 values ranging from 12.88 to 91.89 mu M, stronger than that of the positive control (acarbose, IC50 = 298.07 mu M). Enzyme kinetic analysis indicated that caffeoyltryptophan and falcarindiol displayed competitive and mixed-type PTP1B inhibition, respectively, whereas the alpha-glucosidase inhibition type was mixed-type for caffeoyltryptophan and uncompetitive (rarely reported for alpha-glucosidase inhibitors) for falcarindiol. In addition, molecular docking results showed that these active compounds exhibited good binding affinities toward both PTP1B and a-glucosidase with negative binding energies. The results of the present study demonstrate that these active compounds might be beneficial in the treatment of type 2 diabetes. | Ha, Manh Tuan; Lee, Tae Hyun; Kim, Chung Sub; Prajapati, Ritu; Kim, Jeong Ah; Choi, Jae Sue; Min, Byung Sun | Daegu Catholic Univ, Coll Pharm, Drug Res & Dev Ctr, Gyeongbuk 38430, South Korea; Sungkyunkwan Univ, Sch Pharm, Suwon 16419, South Korea; Sungkyunkwan Univ, Dept Biopharmaceut Convergence, Suwon 16419, South Korea; Pukyong Natl Univ, Dept Food & Life Sci, Busan 48513, South Korea; Kyungpook Natl Univ, Pharmaceut Sci Res Inst, Coll Pharm, Daegu 41566, South Korea | Tuan, Ha/AAW-5444-2021; Kim, Chung Sub/GLN-7192-2022 | 57189040434; 57194598497; 12142324700; 57220038403; 24722570900; 57698194000; 55663638200 | bsmin@cu.ac.kr; | PHYTOCHEMISTRY | PHYTOCHEMISTRY | 0031-9422 | 1873-3700 | 197 | SCIE | BIOCHEMISTRY & MOLECULAR BIOLOGY;PLANT SCIENCES | 2022 | 3.8 | 24.1 | 2.15 | 2025-06-25 | 23 | 21 | Hedera rhombea; Araliaceae; Megastigmane glucosides; 1,4-Dioxane neolignanes; PTP1B; alpha-Glucosidase; Molecular docking | PHENOLIC-COMPOUNDS; ACID-DERIVATIVES; IDENTIFICATION; GLYCOSIDES; L. | 1,4-Dioxane neolignanes; Araliaceae; Hedera rhombea; Megastigmane glucosides; Molecular docking; PTP1B; α-Glucosidase | alpha-Glucosidases; Diabetes Mellitus, Type 2; Fruit; Glycoside Hydrolase Inhibitors; Hedera; Kinetics; Molecular Docking Simulation; Molecular Structure; Protein Tyrosine Phosphatase, Non-Receptor Type 1; alpha glucosidase; glycosidase inhibitor; protein tyrosine phosphatase 1B; chemical structure; chemistry; fruit; ivy; kinetics; metabolism; molecular docking; non insulin dependent diabetes mellitus | English | 2022 | 2022-05 | 10.1016/j.phytochem.2022.113100 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Recent Application of Nanomaterials to Overcome Technological Challenges of Microbial Electrolysis Cells | Microbial electrolysis cells (MECs) have attracted significant interest as sustainable green hydrogen production devices because they utilize the environmentally friendly biocatalytic oxidation of organic wastes and electrochemical proton reduction with the support of relatively lower external power compared to that used by water electrolysis. However, the commercialization of MEC technology has stagnated owing to several critical technological challenges. Recently, many attempts have been made to utilize nanomaterials in MECs owing to the unique physicochemical properties of nanomaterials originating from their extremely small size (at least <100 nm in one dimension). The extraordinary properties of nanomaterials have provided great clues to overcome the technological hurdles in MECs. Nanomaterials are believed to play a crucial role in the commercialization of MECs. Thus, understanding the technological challenges of MECs, the characteristics of nanomaterials, and the employment of nanomaterials in MECs could be helpful in realizing commercial MEC technologies. Herein, the critical challenges that need to be addressed for MECs are highlighted, and then previous studies that used nanomaterials to overcome the technological difficulties of MECs are reviewed. | Kim, Byeongcheol; Yang, Euntae; Kim, Bongkyu; Obaid, M.; Jang, Jae Kyung; Chae, Kyu-Jung | Korea Inst Water Technol Certificat KIWATEC, Technol Dev Div, 20 Gukgasandan Daero 40 Gil, Daegu 43008, South Korea; Kyungpook Natl Univ, Dept Environm Engn, 80 Daehak Ro, Daegu 41566, South Korea; Gyeongsang Natl Univ, Coll Marine Sci, Dept Marine Environm Engn, Tongyoung 53064, South Korea; Jeonbuk Natl Univ, Coll Environm & Bioresource Sci, Div Biotechnol, Iksan 54596, South Korea; Minia Univ, Fac Engn, Chem Engn Dept, Al Minya 61111, Egypt; Natl Inst Agr Sci, Rural Dev Adm, Dept Agr Engn, Energy & Environm Engn Div, 310 Nongsaengmyeong Ro, Jeonju 54875, South Korea; Korea Maritime & Ocean Univ, Coll Ocean Sci & Engn, Dept Environm Engn, 727 Taejong Ro, Busan 49112, South Korea; Korea Maritime & Ocean Univ, Interdisciplinary Major Ocean Renewable Energy En, 727 Taejong Ro, Busan 49112, South Korea | 57575104700; 55558079700; 56088707300; 56342475400; 7402965234; 7102584258 | kbc@kiwatec.or.kr;yet83@gnu.ac.kr;bkim@jbnu.ac.kr;mohammed.awad@kaust.edu.sa;jkjang1052@korea.kr;ckjdream@kmou.ac.kr; | NANOMATERIALS | NANOMATERIALS-BASEL | 2079-4991 | 12 | 8 | SCIE | CHEMISTRY, MULTIDISCIPLINARY;MATERIALS SCIENCE, MULTIDISCIPLINARY;NANOSCIENCE & NANOTECHNOLOGY;PHYSICS, APPLIED | 2022 | 5.3 | 24.1 | 0.23 | 2025-06-25 | 8 | 9 | hydrogen; microbial electrolysis cells; nanomaterials | WASTE-WATER TREATMENT; BIOELECTROCHEMICAL HYDROGEN-PRODUCTION; ELECTROCHEMICAL EVALUATION; EVOLUTION; CATALYSTS; MEMBRANELESS; RESISTANCE; NANOTUBES; CATHODES; ANODES | hydrogen; microbial electrolysis cells; nanomaterials | English | 2022 | 2022-04 | 10.3390/nano12081316 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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