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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 | Influence of Acid-Doped Poly(ethylene imine) Interlayers on the Performance of Polymer:Nonfullerene Solar Cells | This work reports that ultrathin polymeric films doped with organic acid molecules can act as an electron-transporting interfacial layer in polymer:nonfullerene solar cells. The polymeric interfacial layers, which consist of poly(ethylene imine) (PEI) doped with 3-hydroxypropane-1-sulfonic acid (HPSA) at various HPSA molar ratios, are introduced between transparent indium-tin oxide (ITO) electrodes and polymer:nonfullerene bulk heterojunction layers. The HPSA-doped PEI (PEI:HPSA) films are optically translucent in the wavelength range of approximate to 300-800 nm, while the acidity of PEI solutions reached approximate to pH = 7 at HPSA = 30 mol%. The power conversion efficiency of solar cells is improved by doping 20 mol% HPSA due to the increased short circuit current density without open circuit voltage reduction. The improvement in solar cell performances is attributed to an adequate control of HPSA doping ratios, which spares undoped amine units of PEI for making sufficient net dipole layers with ITO surfaces and makes permanent charges for high electrical conductivity in the layers. The surface morphology and doped states are characterized with atomic force microscopy and X-ray photoelectron spectroscopy. | Lee, Woongki; Lee, Chulyeon; Kim, Hwajeong; Kim, Youngkyoo | Kyungpook Natl Univ, Organ Nanoelect Lab, Dept Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Dept Chem Engn, Daegu 41566, South Korea; Imperial Coll London, Dept Chem, London W12 0BZ, England; Imperial Coll London, Ctr Processable Elect, London W12 0BZ, England; Kyungpook Natl Univ, Prior Res Ctr, Res Inst Environm Sci & Technol, Daegu 41566, South Korea | 59041346100; 56354831300; 15520531700; 10340424400 | ykimm@knu.ac.kr; | MACROMOLECULAR RAPID COMMUNICATIONS | MACROMOL RAPID COMM | 1022-1336 | 1521-3927 | 43 | 22 | SCIE | POLYMER SCIENCE | 2022 | 4.6 | 20.3 | 0.09 | 2025-06-25 | 1 | 1 | acid doping; interlayers; organic solar cells; poly(ethylene imine); power conversion efficiency | WORK-FUNCTION ELECTRODES; EFFICIENCY; LAYERS; STABILITY; GRAPHENE; CATHODE; OXIDE; ITO | acid doping; interlayers; organic solar cells; poly(ethylene imine); power conversion efficiency | Conversion efficiency; Crystallinity; Ethylene; Heterojunctions; Indium compounds; Molar ratio; Morphology; Open circuit voltage; Oxide films; Semiconductor doping; Surface morphology; Tin oxides; Ultrathin films; X ray photoelectron spectroscopy; Acid doped; Acid doping; Interfacial layer; Interlayer; Performance; Poly(ethylene imine); Poly(ethyleneimine); Power conversion efficiencies; Sulphonic acids; Ultra-thin; Organic solar cells | English | 2022 | 2022-11 | 10.1002/marc.202200264 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | Article | Phase-controllable topochemical polymerization of liquid crystalline epoxy according to spacer length | Liquid crystalline epoxies (LCEs) have received considerable attention owing to their potential applications in heat dissipation in electronic devices. Herein, we report novel LCE systems (LCEn, n = spacer length) comprising bifunctional phenyl benzoate LC monomers with different spacers that are cured using an imidazole curing agent. Based on microstructural analyses, the lengths of the different alkyl chains considerably affect the LC phases. LCE4 and LCE6 exhibit smectic orientations, whereas LCE8 exhibits a nematic orientation during polymerization. All LCEn samples exhibit high thermal conductivities and superior thermal properties because the mesomorphic assemblies enhance their strong intra- and intermolecular interactions. LCE4, in particular, which displays a compact orientation order, exhibits remarkably high thermal conductivity (0.49 W m−1 K−1). Furthermore, the LCEn samples exhibit superior thermal conductive behavior to those of existing commercial polymers. These results suggest the potential of LCEs as electronic materials based on their thermomechanical properties and high thermal conductivities. © 2023 The Royal Society of Chemistry. | Ku, Kyosun; Yeo, Hyeonuk | Advanced Institute of Water Industry, Kyungpook National University, Daegu, 41566, South Korea; Department of Chemistry Education, Kyungpook National University, Daegu, 41566, South Korea | 57219781815; 55324816500 | yeo@knu.ac.kr; | Polymer Chemistry | POLYM CHEM-UK | 1759-9954 | 1759-9962 | 14 | 5 | SCIE | POLYMER SCIENCE | 2022 | 4.6 | 20.3 | 0.86 | 2025-06-25 | 10 | Curing; Thermal conductivity; Bi-functional; Curing agents; Electronics devices; Epoxy systems; High thermal conductivity; Imidazol; Liquid crystalline epoxy; Phenyl benzoates; Spacer lengths; Topochemical polymerization; Polymerization | English | Final | 2022 | 10.1039/d2py01454h | 바로가기 | 바로가기 | 바로가기 | ||||||||
| ○ | ○ | Article | Rheological and morphological evidence of binary liquid crystalline phases in solutions of an organo-soluble cyano-substituted p-aramid | Poly(p-phenylene terephthalamide) is a primary precursor for super p-aramid fibers, but its poor solubility allows fiber spinning only in sulfuric acid. As an alternative, poly(2-cyano-p-phenylene terephthalamide) (CY-PPTA) is of great interest because of its organo-solubility while maintaining high performance of the resulting fibers. Herein, we observed abnormal binary liquid crystalline (LC) phases of nematic and cholesteric orders in organosoluble CY-PPTA solutions and explored the rheological and morphological evidence of such phase composition. Rheologically, CY-PPTA solutions exhibited two critical concentrations (C*s) at 9 and 15 wt% with concentration-dependent phase transitions: isotropic, nematic-rich, and cholesteric-rich. Compared to the nematic-rich solutions, the cholesteric-rich solutions exhibited higher rheological heterogeneity and stronger shear dependency. Morphologically, nematic- and cholesteric-rich phases were identified by schlieren and fingerprint textures, respectively. Moreover, the circular dichroism spectra demonstrated a helical ordering in the cholesteric-rich phase. The evolution of the unusual cholesteric ordering resulted from the distorted conformation of CY-PPTA chains induced by the electron-withdrawing ability of cyano groups. Cholesteric ordering was ultimately transferred into the film morphology after casting, as shown by the herringbone surface pattern. Thus, understanding the abnormal binary LC phases would provide a sound theoretical background to control complicated hierarchical structure and resulting final properties of the organo-soluble CY-PPTA. | Jung, Dae Eon; Kim, Hyo Jeong; Chae, Dong Wook; Kim, Byoung Chul; Eom, Youngho | Hanyang Univ, Dept Organ & Nano Engn, 222 Wangsimni Ro, Seoul 04763, South Korea; Univ Massachusetts, Dept Polymer Sci & Engn, 120 Governors Dr, Amherst, MA 01003 USA; Pukyong Natl Univ, Dept Polymer Engn, 45 Yongso Ro, Pusan 48513, South Korea; Kyungpook Natl Univ, Dept Text Engn, Sangju 37224, South Korea | JUNG, DAE EON/HGD-1164-2022; Kim, In-Ryoung/AGF-2385-2022; Eom, Youngho/U-6387-2019 | 57141600500; 58923640700; 7006246752; 55726501300; 56108103900 | eomyh@pknu.ac.kr; | POLYMER | POLYMER | 0032-3861 | 1873-2291 | 260 | SCIE | POLYMER SCIENCE | 2022 | 4.6 | 20.3 | 0.64 | 2025-06-25 | 7 | 7 | Liquid crystalline rheology; poly(2-cyano; p -phenylene terephthalamide); Binary liquid crystalline phases | POLY(2-CYANO-P-PHENYLENE TEREPHTHALAMIDE); SHEAR-RATE; BEHAVIOR; VISCOSITY; TEXTURE; HYDROXYPROPYLCELLULOSE; ORIENTATION | Binary liquid crystalline phases; Liquid crystalline rheology; poly(2-cyano-p-phenylene terephthalamide) | Aramid fibers; Aromatic compounds; Dichroism; Liquids; Solubility; Spinning (fibers); Textures; Binary liquid crystalline phase; Binary liquids; Cholesterics; Liquid crystalline; Liquid crystalline rheology; Liquid-crystalline phasis; Nematics; P-phenylene; Poly(2-cyano-p-phenylene terephthalamide); Terephthalamides; Morphology | English | 2022 | 2022-11-08 | 10.1016/j.polymer.2022.125357 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | Surface Adaptable and Adhesion Controllable Dry Adhesive with Shape Memory Polymer | Gecko feet consist of numerous micro/nano hierarchical hairs and exhibit a high adhesion onto various surfaces by van der Waals forces. The gecko, despite its mighty adhesion, can travel efficiently with a rapid adhesion switching due to the end of the hairs on the gecko feet are slanted in one direction. Herein, a shape memory polymer (SMP)-based switchable dry adhesive (SSA), inspired by gecko feet, having tremendous surface adaptability and adhesion switching capability, is reported. The SSA shows not only high adhesion to the various surfaces (approximate to 332.8 kPa) but also easy detachment (nearly 3.73 kPa) due to the characteristic of SMP, which can reversibly recover from a deformed shape to its initial shape. On the basis of the novel adhesion switching property, it is suggested the SSA-applied advanced glass transfer system can lead to feasible application. This experiment confirms that an ultrathin and light glass film is transferred easily and sustainably, and it is believed that the SSA may be a breakthrough and a powerful alternative for not only conventional dry adhesives but also the next-level transfer systems. | Lee, Sung Ho; Song, Hyun Woo; Park, Han Jun; Kwak, Moon Kyu | Univ Michigan, Dept Elect Elect & Comp Sci, Ann Arbor, MI 48109 USA; Kyungpook Natl Univ, Dept Mech Engn, Daegu 41566, South Korea | ; Kwak, Moon/AGQ-6058-2022 | 56195582600; 57212219196; 57455185400; 57203947984 | mkkwak@knu.ac.kr; | MACROMOLECULAR RAPID COMMUNICATIONS | MACROMOL RAPID COMM | 1022-1336 | 1521-3927 | 43 | 8 | SCIE | POLYMER SCIENCE | 2022 | 4.6 | 20.3 | 2.47 | 2025-06-25 | 27 | 27 | adhesion switching; dry adhesives; glass transfer systems; shape memory polymers; surface adaptability | DYNAMICS; PATTERNS; PLASMA | adhesion switching; dry adhesives; glass transfer systems; shape memory polymers; surface adaptability | Adhesiveness; Adhesives; Animals; Lizards; Smart Materials; Adhesives; Glass; Switching; Van der Waals forces; adhesive agent; Adhesion switching; Dry adhesive; Gecko feet; Glass transfer system; High-adhesion; Micro/nano; Shape memory polymers; Surface adaptability; Transfer systems; Van der waals' forces; adhesion; animal; lizard; Adhesion | English | 2022 | 2022-04 | 10.1002/marc.202200012 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | The amount prediction of concrete fragments after impact using smoothed particle hydrodynamics | Concrete median barriers on highways are typical road safety facility that requires predicting correctly the amount of fragments generated during a vehicle collision. The fragmented pieces from the median barrier can cause secondary accidents to a vehicle coming from the opposite lane. Therefore, predicting the amount of fragments depending on the impact severity is important to prevent any secondary accident. Many researchers have studied to predict the damaged area and strain of concrete. Such predictions of concrete structural behavior following impact loads mostly used FEM. However, FEM has a limitation in predicting the fragmentation amount since it simulates fragmentation through element deletion. As an alternative, Smooth Particle Hydrodynamics (SPH) can be used for predicting the amount of fragments or the motion of fragments since these are not affected by the mesh. In the present study, impact analysis was performed to predict the amount of concrete fragments due to vehicle collision. The obtained results of SPH analysis showed that the amount of fragments can change depending on different velocity-to-mass ratios at a fixed local impact energy. Using the results of the SPH analysis, multiple regression analysis (MRA) was conducted further. The MRA showed a rather low coefficient of determination (R2) compared with the SPH analysis results. Therefore, as a future study, with the expectation of improvement, a method such as ANN (Artificial Neural Network) that can predict the amount of fragments including uncertainty is necessary. | Kim, Kyeongjin; Kim, WooSeok; Seo, Junwon; Jeong, Yoseok; Lee, Jaeha | Natl Korea Maritime & Ocean Univ, Major Civil Engn, 727 Taejong Ro, Busan 49112, South Korea; Chungnam Natl Univ, Dept Civil Engn, 99 Daehak Ro, Daejeon 34134, South Korea; South Dakota State Univ, Dept Civil & Environm Engn, Brookings, SD 57007 USA; Kyungpook Natl Univ, Dept Construct & Disaster Prevent Engn, 2559 Kyungsangdae Ro, Sangju 37224, South Korea; Natl Korea Maritime & Ocean Univ, Interdisciplinary Major Ocean Renewable Energy En, Major Civil Engn, 727 Taejong Ro, Busan 49112, South Korea | Seo, Junwon/AAH-8029-2019 | 55976314300; 56286036900; 24469249700; 54980727300; 57014428600 | jaeha@kmou.ac.kr; | ENGINEERING FAILURE ANALYSIS | ENG FAIL ANAL | 1350-6307 | 1873-1961 | 131 | SCIE | ENGINEERING, MECHANICAL;MATERIALS SCIENCE, CHARACTERIZATION & TESTING | 2022 | 4 | 20.3 | 1.12 | 2025-06-25 | 13 | 13 | Concrete median barrier; Impact analysis; SPH; MRA; Fragmentation; Fragment | Concrete median barrier; Fragment; Fragmentation; Impact analysis; MRA; SPH | Accidents; Concretes; Hydrodynamics; Neural networks; Regression analysis; Vehicles; Concrete median barrier; Fragment; Fragmentation; Hydrodynamic analysis; Impact analysis; Median barriers; Multiple regression analysis; Smooth particle hydrodynamics; Smoothed particle hydrodynamics; Vehicles collision; Forecasting | English | 2022 | 2022-01 | 10.1016/j.engfailanal.2021.105882 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Water-Soluble Reactive Polymer Blends for Stable Memory Layers in Low-Voltage Nonvolatile Organic Memory Transistors with High Mobility and Data-Retention Characteristics | Here low-voltage nonvolatile organic memory transistors, featuring high charge-carrier mobility and outstanding data-retention characteristics, by employing water-soluble reactive polymer blends as a gate-insulating memory layer are demonstrated. Blend films of poly(vinyl alcohol) (PVA) and poly(2-acrylamido-2-methyl-1-propanesulfonic acid) (PAMPSA) (PVA:PAMPSA) are prepared from their aqueous solutions with various molar ratios of PAMPSA (0-18 mol%) and thermally annealed at 70 and 110 degrees C. Organic field-effect transistors (OFETs) are fabricated by depositing poly(3-hexylthiophene) (P3HT) channel layers on the thermally treated PVA:PAMPSA films. Results show that the hole mobility of OFETs is remarkably increased (approximate to 294 times at 70 degrees C and approximate to 42 times at 110 degrees C) by adding only 2 mol% PAMPSA to the PVA films and further improved at 10 mol% PAMPSA (>11.7 cm(2) V(-1)s(-1) at 70 degrees C and >3.8 cm(2) V-1 s(-1) at 110 degrees C). The hysteresis characteristics are rather strengthened for the PVA:PAMPSA layers by annealing at 110 degrees C due to the formation of cross-linking sites, even though the OFETs with the pristine PVA layers do almost lose hysteresis characteristics at 110 degrees C. The optimized OFETs with the PVA:PAMPSA layers (10 mol%, 110 degrees C) deliver excellent data retention characteristics during >10 000 memory cycles at a voltage range of -5 to +5 V. | Lee, Chulyeon; Lee, Woongki; Kim, Hwajeong; Kim, Youngkyoo | Kyungpook Natl Univ, Sch Appl Chem Engn, Dept Chem Engn, Organ Nanoelect Lab, Daegu 41566, South Korea; Kyungpook Natl Univ, KNU Inst Nanophoton Applicat KINPA, Dept Chem Engn, Sch Appl Chem Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Res Inst Environm Sci & Technol, Prior Res Ctr, Daegu 41566, South Korea | 56354831300; 59041346100; 15520531700; 10340424400 | ykimm@knu.ac.kr; | MACROMOLECULAR RAPID COMMUNICATIONS | MACROMOL RAPID COMM | 1022-1336 | 1521-3927 | 43 | 8 | SCIE | POLYMER SCIENCE | 2022 | 4.6 | 20.3 | 0 | 2025-06-25 | 0 | 0 | crosslinking; high mobility; nonvolatile organic memory transistors; stability; water-soluble polymer blends | GLASS-TRANSITION TEMPERATURE; POLY(VINYL ALCOHOL); BEHAVIOR; FILMS | crosslinking; high mobility; nonvolatile organic memory transistors; stability; water-soluble polymer blends | Hole mobility; Hysteresis; Molar ratio; Organic field effect transistors; Polymer blends; Polyvinyl alcohols; Data-retention; High mobility; Low voltages; Memory layers; Memory transistors; Nonvolatile organic memory transistor; Organic field-effect transistors; Retention characteristics; Water-soluble polymer blends; Watersoluble; Crosslinking | English | 2022 | 2022-04 | 10.1002/marc.202100922 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | A multicenter randomized controlled trial of cyanoacrylate closure and surgical stripping for incompetent great saphenous veins | Objective: The treatment of varicose veins has shifted from conventional surgical stripping (SS) to minimally invasive endovenous modalities. Cyanoacrylate closure (CAC) with the VenaSeal system (Medtronic, Dublin, Ireland) has increased in popularity owing to its nonthermal and nontumescent technique. The purpose of the present study was to compare the clinical outcomes of CAC and SS for the treatment of incompetent great saphenous veins. Methods: An open-label, multicenter, prospective, randomized controlled trial was conducted. The subjects were ran-domized to either the CAC or SS procedure. The primary endpoint of the present study was to evaluate complete closure of the target vein at 3 months. Target vein occlusion was assessed on the third day and 1, 3, 6, and 12 months post-operatively using duplex ultrasound. The pain and ecchymosis grades were also assessed. Additionally, the clinical out -comes, such as the venous clinical severity score and Aberdeen Varicose Vein Questionnaire score, were assessed. Results: Three-month follow-up data were obtained for all 126 enrolled and randomized subjects (63 with CAC and 63 with SS). At 3 months, complete target vein closure was observed in both groups. The postoperative pain score was significantly better in the CAC group than in the SS group (0.3 +/- 0.6 in the CAC group and 1.1 +/- 1.5 in the SS group; P < .001). In addition, the mean ecchymosis grade was 0.3 +/- 0.5 in the CAC group and 1.1 +/- 1.1 in the SS group (P < .001). The venous clinical severity score and quality of life had improved equally in both groups. The adverse events after both procedures were mostly minor complications (9 events in CAC group and 20 events in SS group). Major complications occurred in one patient who had undergone the SS procedure. Conclusions: The CAC and SS procedures were both associated with complete occlusion of the target vein at 3 months. The postoperative pain and ecchymosis grades were significantly lower in the CAC group. Other differences between the two groups included the frequency and nature of the complications. The results showed that CAC has high success with few complications. | Joh, Jin Hyun; Lee, Taeseung; Byun, Seung Jae; Cho, Sungsin; Park, Hyung Sub; Yun, Woo-Sung; Yang, Shin-Seok; Kim, Hyangkyoung; Kim, Woo-Shik; Jung, In Mok | Kyung Hee Univ, Dept Surg, Div Vasc Surg, Hosp Gangdong, Seoul, South Korea; Seoul Natl Univ, Dept Surg, Div Vasc Surg, Bundang Hosp, Seongnam, South Korea; Youchanghyun Byunseungjae Vasc Surg, Busan, South Korea; Kyungpook Natl Univ Hosp, Dept Surg, Div Vasc Surg, Daegu, South Korea; Samsung Med Ctr, Seoul, South Korea; Asan Med Ctr, Seoul, South Korea; Natl Med Ctr, Seoul, South Korea; Seoul Natl Univ, Seoul Metropolitan Govt, Boramae Med Ctr, 20 Boramae Ro 5 Gil, Seoul 07061, South Korea | Cho, Sungsin/ABB-5656-2021 | 7005275040; 7501437724; 23003394600; 57211347972; 46161622600; 35070717000; 54400594300; 41661639700; 57217064540; 7102965133 | sboy5240@gmail.com; | JOURNAL OF VASCULAR SURGERY-VENOUS AND LYMPHATIC DISORDERS | J VASC SURG-VENOUS L | 2213-333X | 10 | 2 | SCIE | PERIPHERAL VASCULAR DISEASE;SURGERY | 2022 | 3.2 | 20.4 | 2.76 | 2025-06-25 | 12 | 17 | Cyanoacrylate; Endovenous; Stripping; Varicose vein | RADIOFREQUENCY ABLATION; FOAM SCLEROTHERAPY; CLASSIFICATION; OUTCOMES | Cyanoacrylate; Endovenous; Stripping; Varicose vein | Aged; Cyanoacrylates; Ecchymosis; Endovascular Procedures; Female; Humans; Male; Middle Aged; Pain Measurement; Pain, Postoperative; Prospective Studies; Quality of Life; Saphenous Vein; Seoul; Surveys and Questionnaires; Time Factors; Treatment Outcome; Ultrasonography, Doppler, Duplex; Varicose Veins; Vascular Surgical Procedures; Venous Insufficiency; anesthetic agent; cyanoacrylate; surgical glue; cyanoacrylate derivative; aberdeen varicose vein questionnaire score; adult; adverse event; anesthesia; Article; clinical outcome; control group; controlled study; cyanoacrylate closure; demography; disease severity assessment; duplex Doppler ultrasonography; ecchymosis; follow up; human; human tissue; intermethod comparison; major clinical study; multicenter study; outcome assessment; pain assessment; postoperative complication; postoperative pain; prospective study; quality of life; questionnaire; randomized controlled trial; saphenous vein; scoring system; surgical approach; surgical technique; treatment duration; treatment outcome; varicosis; vein occlusion; vein stripping; venous clinical severity score; aged; clinical trial; comparative study; diagnostic imaging; ecchymosis; endovascular surgery; female; male; middle aged; pain measurement; pathophysiology; postoperative pain; saphenous vein; South Korea; surgery; time factor; varicosis; vascular surgery; vein insufficiency | English | 2022 | 2022-03 | 10.1016/j.jvsv.2021.08.012 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Review | Curcumin as a Promising Neuroprotective Agent for the Treatment of Spinal Cord Injury: A Review of the Literature | Curcumin is a polyphenolic chemical derived from the rhizomes of Curcuma longa. It has been used throughout the Indian subcontinent for medicinal purposes, religious events, and regional cuisine. It has various pharmacological benefits owing to its anti-inflammatory and antioxidant properties. Its neuroprotective effects on the brain and peripheral nerves have been demonstrated in several in vivo neuronal tissue studies. Because of these func-tional properties of curcumin, it is considered to have great potential for use in the treat-ment of spinal cord injuries (SCIs). Numerous immunopathological and biochemical stud-ies have reported that curcumin can help prevent and alleviate subsequent secondary inju-ries, such as inflammation, edema, free radical damage, fibrosis, and glial scarring, after a primary SCI. Furthermore, following SCI, curcumin administration resulted in better out-comes of neurological function recovery as per the Basso, Beattie, and Bresnahan locomo-tor rating scale. However, to date, its utility in treating SCIs has only been reported in labo-ratories. More studies on its clinical applications are needed in the future for ensuring its bioavailability across the blood-brain barrier and for verifying the safe dose for treating SCIs in humans. | Lee, Subum; Cho, Dae-Chul; Han, Inbo; Kim, Kyoung-Tae | Korea Univ, Anam Hosp, Coll Med, Dept Neurosurg, Seoul, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurosurg, Daegu, South Korea; CHA Univ Sch Med, CHA Bundang Med Ctr, Dept Neurosurg, Seongnam, South Korea | Lee, Subum/AFQ-2764-2022 | 57193631061; 55859543400; 9338449900; 57201369790 | hanib@cha.ac.kr;nskimkt7@gmail.com; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 2 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 1.79 | 2025-06-25 | 11 | 11 | Antioxidant; Curcumin; Inflammation; Neuroprotective agent; Recovery of function; Spinal cord injury | GLIAL SCAR FORMATION; BIOLOGICAL EVALUATION; STEM-CELLS; ANTIOXIDANT; EXPRESSION; IMPROVES; DERIVATIVES; INHIBITION; PROOXIDANT; SUPPRESSOR | Antioxidant; Curcumin; Inflammation; Neuroprotective agent; Recovery of function; Spinal cord injury | aquaporin 4; curcumin; dimethyl sulfoxide; free radical; glial fibrillary acidic protein; hypoxia inducible factor 1alpha; immunoglobulin enhancer binding protein; interleukin 1; interleukin 8; malonaldehyde; methylprednisolone; monocyte chemotactic protein 1; nanoconjugate; reactive oxygen metabolite; STAT protein; superoxide dismutase; transcription factor FOXO; transcription factor Nrf2; tumor necrosis factor; antiinflammatory activity; antioxidant activity; apoptosis; Article; blood brain barrier; cell differentiation; cell proliferation; Curcuma longa; edema; fibrosis; free radical scavenging assay; human; hydrogen bond; induced pluripotent stem cell; inflammation; mesenchymal stem cell; muscle mass; nervous system inflammation; neural stem cell; neuroprotection; NF kB signaling; oxidative stress; pathophysiology; phosphorylation; reperfusion injury; spinal cord injury; stem cell mobilization; stem cell transplantation | English | 2022 | 2022-06 | 10.14245/ns.2244148.074 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Effects of D-Serine and MK-801 on Neuropathic Pain and Functional Recovery in a Rat Model of Spinal Cord Injury | Objective: Neuropathic pain is a common secondary complication of spinal cord injury (SCI). N-methyl-D-aspartate (NMDA) receptor activation is critical for hypersensitivity in neuropathic pain. This activation requires the binding of both glutamate and the D-serine co-agonist to the NMDA glycine site. We evaluated the effects of D-serine on neuropathic pain after SCI and explored the underlying molecular mechanisms.Methods: Anesthetized rats underwent T9 spinal cord contusion (130 kdyn). D-serine (500 and 1,000 mg/kg) and MK-801 hydrogen maleate (2.0 mg/kg) were injected daily for 2 weeks, starting the day after SCI. Functional outcomes were assessed according to the Basso, Beat-tie, and Bresnahan scale, while histological outcomes were evaluated based on lesion vol-ume and spared tissue area. Mechanical allodynia and thermal hyperalgesia were evaluated by measuring the withdrawal threshold of a von Frey filament and hot/cold plate latency. Western blotting was performed to determine the expression levels of Trpv1, Nav1.9, calci-tonin gene-related peptide (CGRP), and beta-actin in damaged tissue.Results: The withdrawal threshold values and latency of the D-serine group were significant-ly lower than those of the noninjection group. The MK-801 group showed higher threshold values and latencies than the other groups. Western blotting showed increased Nav1.9 and Trpv1 levels and lower CGRP levels in the D-serine group, whereas the MK-801 group showed the opposite results.Conclusion: D-serine increases neuropathic pain after traumatic SCI by mediating the NMDA receptor. NMDA receptor antagonists alleviate neuropathic pain after traumatic SCI. | Yu, Dongwoo; Mun, Seul Ah; Kim, Sang Woo; Cho, Dae-Chul; Kim, Chi Heon; Han, Inbo; Lee, Subum; Lee, Sang -Woo; Kim, Kyoung-Tae | Yeungnam Univ, Yeungnam Univ Hosp, Coll Med, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurosurg, Daegu, South Korea; Seoul Natl Univ, Coll Med, Dept Neurosurg, Seoul, South Korea; CHA Univ, CHA Bundang Med Ctr, Sch Med, Dept Neurosurg, Seongnam, South Korea; Korea Univ, Anam Hosp, Coll Med, Dept Neurosurg, Seoul, South Korea; Kyungpook Natl Univ Hosp, Dept Neurosurg, 130 Dongdeok Ro, Daegu 41944, South Korea | Kim, Chi/J-6536-2019; Lee, Subum/AFQ-2764-2022 | 57217215304; 57216694404; 56540589900; 55859543400; 35145892000; 9338449900; 57193631061; 57813492500; 57201369790 | nskimkt7@gamial.com; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 3 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 1.14 | 2025-06-25 | 7 | 7 | Serine; MK-801; NMDA; Spinal cord injuries; Neuropathic pain | NMDA RECEPTOR ANTAGONIST; MECHANICAL ALLODYNIA; DORSAL-HORN; AMINO-ACIDS; MOUSE MODEL; NEUROTRANSMISSION; HYPEREXCITABILITY; DIFFERENTIATION; TRANSMISSION; HYPERALGESIA | MK-801; Neuropathic pain; NMDA; Serine; Spinal cord injuries | alizarin; beta actin; calcitonin gene related peptide; dizocilpine; ketamine; n methyl dextro aspartic acid; serine; xylazine; animal experiment; animal model; animal tissue; Article; Brazelton Neonatal Behavioral Assessment Scale; chemoluminescence; gel electrophoresis; histopathology; hot plate test; neuropathic pain; nonhuman; protein determination; rat; signal transduction; spinal cord injury; thermal hyperalgesia; Western blotting | English | 2022 | 2022-09 | 10.14245/ns.2244410.205 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | High Dose Intramuscular Vitamin D3 Supplementation Impacts the Gut Microbiota of Patients With Clostridioides Difficile Infection | Background and AimCurrent therapeutic strategies for Clostridioides difficile infections (CDI), including oral vancomycin, metronidazole and fecal microbial transplantation, have limited efficacy and treatment failure may occur in as many as one- third of cases. Recent studies have reported that lower concentrations of 25-hydroxyvitamin D are associated with CDI severity and recurrence. However, there have been no studies on microbiota composition after the administration of vitamin D in patients with CDI. Therefore, our study aimed to compare the microbiota composition between the two groups, including eight CDI-positive patients with vitamin D supplementation and ten CDI-positive patients without vitamin D supplementation by using 16S rRNA microbial profiling. MethodsTwenty subjects were enrolled in this prospective randomized controlled study. One subject dropped out due to lack of contact with the guardian after discharge and one subject dropped out due to withdrawal of consent. Thus, 18 patients with CDI and vitamin D insufficiency (vitamin D level < 17 ng/mL) were divided into two groups: CDI with vitamin D supplementation (n = 8) and CDI without vitamin D supplementation (control: n = 10). Subjects with vitamin D insufficiency were randomized to receive 200,000 IU intramuscular cholecalciferol whereas patients in the control group received only oral vancomycin. Stool samples were obtained twice before vancomycin was administered and eight weeks after treatment; the V3-V4 16S rRNA metagenomic sequencing was performed using EzBioCloud. ResultsThe alpha diversity of the gut microbiota in the recovery state was significantly higher than that in the CDI state. Analysis of bacterial relative abundance showed significantly lower Proteobacteria and higher Lachnospiraceae, Ruminococcaceae, Akkermansiaceae, and Bifidobacteriaceae in the recovery state. When comparing the control and vitamin D treatment groups after eight weeks, increase in alpha diversity and, abundance of Lachnospiraceae, and Ruminococcaceae exhibited the same trend in both groups. A significant increase in Bifidobacteriaceae and Christensenellaceae was observed in the vitamin D group; Proteobacteria abundance was significantly lower in the vitamin D treatment group after eight weeks than that in the control group. ConclusionOur study confirmed that the increase in the abundance of beneficial bacteria such as Bifidobacteriaceae, and Christensenellaceae were prominently evident during recovery after administration of a high dose of cholecalciferol. These findings indicate that vitamin D administration may be useful in patients with CDI, and further studies with larger sample sizes are required. | Lee, Sang Hoon; Park, Han-Ki; Kang, Chang Don; Choi, Dae Hee; Park, Sung Chul; Park, Jin Myung; Nam, Seung-Joo; Chae, Gi Bong; Lee, Kyoung Yul; Cho, Hyunseok; Lee, Sung Joon | Kangwon Natl Univ, Kangwon Natl Univ Hosp, Dept Internal Med, Sch Med, Chunchon, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Chilgok Hosp, Sch Med, Dept Internal Med, Daegu, South Korea; Kangwon Natl Univ, Kangwon Natl Univ Hosp, Dept Surg, Sch Med, Chunchon, South Korea; Kangwon Natl Univ, Dept Pathol, Sch Med, Chunchon, South Korea; Kangwon Natl Univ, Dept Hosp Med, Sch Med, Chunchon, South Korea | Nam, Seung-Joo/IQT-1909-2023; Lee, Juyoung/Y-3277-2019; Park, Han-Ki/AAY-3102-2020; Park, Sung Chul/AGO-1773-2022 | 58092582800; 57218664064; 24066705200; 7401643974; 39161700000; 57205232842; 56310341800; 24066338100; 57194431661; 57195349292; 55885574800 | joon617@kangwon.ac.kr; | FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY | FRONT CELL INFECT MI | 2235-2988 | 12 | SCIE | IMMUNOLOGY;MICROBIOLOGY | 2022 | 5.7 | 20.4 | 0.88 | 2025-06-25 | 11 | 10 | clostridioides difficile infection; vitamin D; microbiota; cholecalciferol; bifidobacteriaceae; christensenellaceae | DOUBLE-BLIND; SIGNATURE; DYSBIOSIS; SEVERITY; DISEASE | bifidobacteriaceae; cholecalciferol; christensenellaceae; clostridioides difficile infection; microbiota; vitamin D | Bacteria; Cholecalciferol; Clostridioides difficile; Clostridium Infections; Dietary Supplements; Gastrointestinal Microbiome; Humans; Prospective Studies; RNA, Ribosomal, 16S; Vancomycin; Vitamin D; Vitamin D Deficiency; colecalciferol; metronidazole; RNA 16S; vancomycin; colecalciferol; RNA 16S; vancomycin; vitamin D; aged; Article; bacterial infection; clinical trial; Clostridioides difficile; Clostridioides difficile infetion; Clostridioides difficile infetion; controlled study; drug megadose; drug overdose; female; human; intestine flora; male; nonhuman; prospective study; protein fingerprinting; sample size; vitamin blood level; bacterium; Clostridium infection; dietary supplement; genetics; microbiology; randomized controlled trial; vitamin D deficiency | English | 2022 | 2022-06-06 | 10.3389/fcimb.2022.904987 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |||
| ○ | ○ | Article | Indirect Decompression Using Oblique Lumbar Interbody Fusion Revision Surgery Following Previous Posterior Decompression: Comparison of Clinical and Radiologic Outcomes Between Direct and Indirect Decompression Revision Surgery | Objective: This study compared the radiological and clinical outcomes with transforaminal lumbar interbody fusion (TLIF) to evaluate the effect of indirect decompression through oblique lumbar interbody fusion (OLIF) as revision surgery.Methods: We enrolled patients who underwent single-level fusion with revision surgery at the same level as the previous decompression level. We retrospectively reviewed 25 patients who underwent OLIF from 2017 to 2018 and 25 who received TLIF from 2014 to 2018. Ra-diologic and clinical outcomes were evaluated by cross-sectional area (CSA) of the spinal canal, thickness and area of ligamentum flavum (LF), subsidence, disc height, fusion rate, Oswestry Disability Index (ODI), and visual analogue scale (VAS). Results: Compared with OLIF, the thickness and area of the LF after surgery were signifi-cantly less in TLIF, and the resulting CSA extension was also significantly higher. However, both groups showed improvement in ODI and VAS after surgery, and there was no differ-ence between the groups. Complications related to the posterior approach in TLIF were 4 cases, and in OLIF, there were 2 cases that underwent additional posterior decompression surgery and 6 cases of transient paresthesia.Conclusion: Since complications associated with the posterior approach can be avoided, OLIF is a safer and useful minimally invasive surgery. Therefore, appropriate indications are applied, OLIF is a good alternative to TLIF when revision surgery is considered. | Park, Sang-Jin; Hwang, Jong-Moon; Cho, Dae-Chul; Lee, Subum; Kim, Chi Heon; Han, Inbo; Park, Dae-Won; Kwon, Heum-Dai; Kim, Kyoung-Tae | Charmjoeun Spine & Joint Hosp, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Rehabil Med, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurosurg, 130 Dongdeok Ro, Daegu 41944, South Korea; Korea Univ, Coll Med, Dept Neurosurg, Anam Hosp, Seoul, South Korea; Seoul Natl Univ Hosp, Dept Neurosurg, Seoul, South Korea; Seoul Natl Univ, Dept Neurosurg & Med Device Dev, Coll Med, Seoul, South Korea; CHA Univ, CHA Bundang Med Ctr, Dept Neurosurg, Seongnam, South Korea; Good Moonhwa Hosp, Dept Neurosurg, Busan, South Korea; Pohang Stroke & Spine Hosp, Dept Neurosurg, 352 Huimang Daero, Pohang 37659, South Korea | ; Lee, Subum/AFQ-2764-2022; Kim, Chi/J-6536-2019 | 57915749300; 56367634000; 55859543400; 57193631061; 35145892000; 9338449900; 57560604200; 57219872171; 57201369790 | nskimkt7@gmail.com;spinekwon@gmail.com;nskimkt7@knu.ac.kr; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 3 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 2.6 | 2025-06-25 | 16 | 16 | Oblique lumbar interbody fusion; Transforaminal lumbar interbody fusion; In-direct decompression; Direct decompression; Revision surgery | NEURAL DECOMPRESSION; SPINAL STENOSIS; COMPLICATIONS; REOPERATION | Direct decompression; Indirect decompression; Oblique lumbar interbody fusion; Revision surgery; Transforaminal lumbar interbody fusion | adult; aged; Article; bone density; clinical assessment; clinical evaluation; clinical outcome; comparative study; computer assisted tomography; conservative treatment; decompression surgery; demographics; discectomy; facetectomy; female; human; intervertebral disk hernia; laminectomy; ligamentum flavum; major clinical study; male; nuclear magnetic resonance imaging; Oswestry Disability Index; posterior lumbar interbody fusion; preoperative evaluation; radiography; spondylolisthesis; surgical approach; vertebral canal; visual analog scale | English | 2022 | 2022-09 | 10.14245/ns.2244242.121 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Article | Mechanical Failure After Total En Bloc Spondylectomy and Salvage Surgery | Objective: Total en bloc spondylectomy (TES) is a curative surgical method for spinal tumors. After resecting the 3 spinal columns, reconstruction is of paramount importance. We present cases of mechanical failure and suggest strategies for salvage surgery. Methods: The medical records of 19 patients who underwent TES (9 for primary tumors and 10 for metastatic tumors) were retrospectively reviewed. Previously reported surgical techniques were used, and the surgical extent was 1 level in 16 patients and 2 levels in 3 patients. A titanium-based mesh-type interbody spacer filled with autologous and cadaveric bone was used for anterior support, and a pedicle screw/rod system was used for posterior support. Radiotherapy was performed in 11 patients (pre-TES, 5; post-TES, 6). They were followed up for 59 +/- 38 months (range, 11-133 months). Results: During follow-up, 8 of 9 primary tumor patients (89%) and 5 of 10 metastatic tumor patients (50%) survived (mean survival time, 124 +/- 8 months vs. 51 +/- 13 months; p = 0.11). Mechanical failure occurred in 3 patients (33%) with primary tumors and 2 patients (20%) with metastatic tumors (p = 0.63). The mechanical failure-free time was 94.4 +/- 14 months (primary tumors, 95 +/- 18 months; metastatic tumors, 68 +/- 16 months; p = 0.90). Revision surgery was performed in 4 of 5 patients, and bilateral broken rods were replaced with dual cobalt-chromium alloy rods. Repeated rod fractures occurred in 1 of 4 patients 2 years later, and the third operation (with multiple cobalt-chromium alloy rods) was successful for over 6 years. Conclusion: Considering the difficulty of reoperation and patients' suffering, preemptive use of a multiple-rod system may be advisable. | Kwon, Shin Won; Chung, Chun Kee; Won, Young Il; Yuh, Woon Tak; Park, Sung Bae; Yang, Seung Heon; Lee, Chang Hyun; Rhee, John M.; Kim, Kyoung-Tae; Kim, Chi Heon | Incheon Vet Hosp, Dept Neurosurg, Incheon, South Korea; Seoul Natl Univ Hosp, Dept Neurosurg, Seoul, South Korea; Seoul Natl Univ, Dept Neurosurg, Coll Med, Seoul, South Korea; Seoul Natl Univ, Dept Brain & Cognit Sci, Seoul, South Korea; Chungnam Natl Univ, Dept Neurosurg, Sejong Hosp, Sejong, South Korea; Seoul Natl Univ, Boramae Med Ctr, Dept Neurosurg, Boramae Hosp, Seoul, South Korea; Seoul Natl Univ, Dept Neurosurg, Bundang Hosp, Seongnam, South Korea; Emory Univ, Sch Med, Dept Orthopaed Surg, Atlanta, GA USA; Kyungpook Natl Univ Hosp, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurosurg, Daegu, South Korea | Kim, Chi/J-6536-2019; Chung, Chun/J-5650-2012; Chung, Chun Kee/J-5650-2012; Lee, Chang-Hoon/AAC-7650-2021 | 57197743293; 7403613043; 57744628900; 57191359268; 45261436700; 56440402100; 56942572100; 7202839338; 57201369790; 35145892000 | chiheon1@snu.ac.kr; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 1 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 0.98 | 2025-06-25 | 6 | 6 | Arthrodesis; Operation; Reoperation; Spine; Spinal fusion; Spinal neoplasm | INSTRUMENTATION FAILURE; SURGICAL TECHNIQUE; THORACIC SPINE; TUMORS; RECONSTRUCTION | denosumab; adult; Article; backache; chondroblastoma; chylothorax; clinical article; computer assisted tomography; corpectomy; en bloc resection; en bloc spondylectomy; event free survival; female; follow up; giant cell tumor; human; lumbar spine; lung lesion; male; mechanical failure; metastasis; metastasis resection; nuclear magnetic resonance imaging; osteosarcoma; perioperative period; positron emission tomography; primary tumor; retrospective study; risk factor; salvage therapy; scar tissue; small cell lung cancer; spine tumor; surgical technique; thoracic spine; treatment failure; tumor recurrence; X ray | English | 2022 | 2022-03 | 10.14245/ns.2244092.046 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||
| ○ | ○ | Article | The Change of Spinal Canal According to Oblique Lumbar Interbody Fusion in Degenerative Spondylolisthesis : A Prospective Observational Study | Objective: Oblique lumbar interbody fusion (OLIF) involves inserting large cages into the interbody disc space. This expands the spinal canal and neural foramen by stretching the ligament flavum and releasing the facet joint, resulting in indirect neural decompression. Our objective was to investigate the changes in the spinal canal and ligament flavum over time after OLIF.Methods: This was a prospective observational study involving 30 patients who underwent OLIF L4-5 between 2015 and 2018. In total, 27 of the 30 patients underwent preoperative, early follow-up ( < 5 days), and late follow-up (10-14 months) magnetic resonance imaging to measure the area of the spinal canal and ligament flavum. Based on the results, the patients were divided into subsidence and nonsubsidence groups for further analysis.Results: After OLIF, the spinal canal area gradually increased during the preoperative, early postoperative, and late postoperative periods (p < 0.001). The thickness and area of the ligament flavum decreased gradually over the same periods (p < 0.001). Low-grade subsidence (2-4.4 mm) did not influence the effects on the spinal canal and ligament.Conclusion: After OLIF, the spinal canal and ligament flavum gradually change, which is effective for indirect neural decompression. In addition, the effects of low-grade subsidence on the remodeling of the spinal canal and ligament flavum are insignificant. | Lee, Young-Seok; Lee, Dong-Hyun; Cho, Dae-Chul; Han, Inbo; Kim, Chi Heon; Kwon, Heum-Dai; Kim, Kyoung-Tae | Chung Ang Univ Coll Med, Dept Neurosurg, Dept Neurosurg, Seoul, South Korea; Kyungpook Natl Univ Hosp, Biomed Res Inst, Dept Neurosurg, Daegu, South Korea; Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Sch Med, Dept Neurosurg, Daegu, South Korea; CHA Univ, CHA Bundang Med Ctr, Sch Med, Dept Neurosurg, Seongnam, South Korea; Seoul Natl Univ Coll Med, Dept Neurosurg, Seoul, South Korea; Pohang Stroke & Spine Hosp, Dept Neurosurg, Pohang, South Korea; Kyungpook Natl Univ, Sch Med, Dept Neurosurg, 130 Dongdeok Ro, Daegu, South Korea; Pohang Stroke & Spine Hosp, Dept Neurosurg, 352 Huimang Daero, Pohang 37659, South Korea | ; Kim, Chi/J-6536-2019 | 57203798682; 57207418707; 55859543400; 9338449900; 35145892000; 57219872171; 57201369790 | spinekwon@gmail.com;nskimkt7@gmail.com; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 3 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 2.44 | 2025-06-25 | 15 | 15 | Oblique lateral interbody fusion; Indirect decompression; Spinal canal; Liga; ment flavum; Subsidence | INDIRECT DECOMPRESSION; LIGAMENTUM-FLAVUM; NEURAL DECOMPRESSION; CAGE SUBSIDENCE | Indirect decompression; Ligament flavum; Oblique lateral interbody fusion; Spinal canal; Subsidence | adult; Article; atrophy; body mass; correlation coefficient; decompression; discectomy; dynamometry; female; follow up; human; interrater reliability; knee function; length of stay; ligament; ligamentum flavum; male; nuclear magnetic resonance imaging; Oblique lumbar interbody fusion; osteoporosis; Oswestry Disability Index; postoperative period; preoperative evaluation; scoring system; spine fracture; spine fusion; spine surgery; spondylolisthesis; T2 weighted imaging; thickness; vertebral canal; vertebral canal stenosis | English | 2022 | 2022-09 | 10.14245/ns.2143274.637 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | |
| ○ | ○ | Editorial Material | The Importance of Vascular Repair as the First Step in Spinal Cord Injury Treatment: Commentary on " Therapeutic Approaches Targeting Vascular Repair After Experimental Spinal Cord Injury: A Systematic Review of the Literature" | Kim, Kyoung-Tae | Kyungpook Natl Univ, Kyungpook Natl Univ Hosp, Dept Neurosurg, Sch Med, 130 Dongdeok Ro, Daegu 41944, South Korea | 57201369790 | nskimt7@gmail.com;nskimkt7@gmail.com; | NEUROSPINE | NEUROSPINE | 2586-6583 | 2586-6591 | 19 | 4 | SCIE | CLINICAL NEUROLOGY;SURGERY | 2022 | 3.2 | 20.4 | 0 | 2025-06-25 | 0 | 0 | angiogenic factor; biomaterial; fibroblast growth factor 2; vasculotropin; acute phase response; drug delivery system; Editorial; electrostimulation; genetic engineering; hemodynamics; human; nerve regeneration; neuroprotection; physical stimulation; regenerative medicine; spinal cord injury; stem cell transplantation; systematic review; vascular surgery | English | 2022 | 2022-12 | 10.14245/ns.2245022.511 | 바로가기 | 바로가기 | 바로가기 | 바로가기 | ||||||
| ○ | ○ | Article | Crystallinity Modulation of Electron Acceptor in One-Photon Excitation Pathway-Based Heterostructure for Visible-Light Photocatalysis | Graphitic carbon nitride is viewed as promising visible-light photocatalyst. However, the high recombination rate of photogenerated carriers within the bulk strongly limits its performance and achieving highly efficient heterostructure remains challenging. Herein, construction of carbon nitride-related heterostructures based on the one-photon excitation pathway (OPEP) mechanism is reported and the complex interplay between component crystallinity and charge transfer kinetics is unraveled. As a proof of concept, prototype TiO2 is selected as the electron-acceptor while crystalline carbon nitride (CCN) is used as the light-absorber. Interestingly, a counter-intuitive phenomenon is found that decreased crystallinity of the electron acceptor is favorable for charge carrier transfer through the heterostructure interface. Detailed structural analysis demonstrates TiO2 with low crystallinity can introduce more dramatic changes to electron distribution of C3N4 than those from highly crystalline counterparts when forming heterostructures, leading to the highly efficient interface. Based on the aforementioned observation, the designed heterostructure (CCN/low-crystalline TiO2) presents a 6 and 4.8 times optimized photocatalytic hydrogen production rate of CCN and CCN/high-crystalline TiO2, respectively. This finding challenges the conventional view and may advance the in-depth understanding for construction of OPEP-related heterostructures and design of highly efficient composite photocatalysts via structure modulation. | Zhi, Xiaojuan; Liu, Huan; Xia, Zhonghui; Di, Shuanlong; Beom Cho, Yeon; Niu, Ping; Chun, Sang-Eun; Wang, Shulan; Li, Li | Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China; Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Liaoning, Peoples R China; Northeastern Univ, Coll Sci, Dept Chem, Shenyang 110819, Liaoning, Peoples R China; Kyungpook Natl Univ, Sch Mat Sci & Engn, Daegu 41566, South Korea; Kyungpook Natl Univ, Sch Ind Technol Adv, Daegu 41566, South Korea | Niu, Ping/L-8730-2013; Li, Li/ABF-1706-2020 | 57364825900; 59818810700; 57363937700; 57201026734; 57364572900; 36466810200; 36801080300; 55810395500; 56122801700 | niup@smm.neu.edu.cn;sangeun@knu.ac.kr;lilicmu@alumni.cmu.edu; | SOLAR RRL | SOL RRL | 2367-198X | 6 | 2 | SCIE | ENERGY & FUELS;MATERIALS SCIENCE, MULTIDISCIPLINARY | 2022 | 7.9 | 20.5 | 0.92 | 2025-06-25 | 11 | 11 | carbon nitride; crystallinity modulation; efficient heterostructure constructions; one-photon excitation pathway; photocatalysis | GRAPHITIC CARBON NITRIDE; G-C3N4/TIO2 NANOSHEETS; Z-SCHEME; HYDROGEN; BAND; FABRICATION; PERFORMANCE; PHOTOOXIDATION; COMPOSITE; CATALYSTS | carbon nitride; crystallinity modulation; efficient heterostructure constructions; one-photon excitation pathway; photocatalysis | Carbon nitride; Charge transfer; Electrons; Hydrogen production; Light; Modulation; Photocatalytic activity; Photons; Titanium dioxide; Cristallinity; Crystalline carbon nitride; Crystallinity modulation; Efficient heterostructure construction; Electron-acceptor; Excitation pathways; Graphitic carbon nitrides; One photon excitations; One-photon excitation pathway; Visible-light photocatalysis; Crystallinity | English | 2022 | 2022-02 | 10.1002/solr.202100901 | 바로가기 | 바로가기 | 바로가기 | 바로가기 |
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