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High-power and long-life supercapacitive performance of hierarchical, 3-D urchin-like W18049 nanostructure electrodes

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Nano Research 2016年第3期9卷 633-643页

作者： Sangbaek Park Hyun-Woo Shim chan Woo Lee Hee Jo Song jae-chan kim Dong-Wan kim Department of Materials Science and Engineering Seoul National University Seoul 151-744 Republic of Korea School of Civil Environmental and Architectural Engineering Korea University Seou1136-713 Republic of Korea

We report the facile, one-pot synthesis of 3-D urchin-like W18O49 nanostructures （U-WO） via a simple solvothermal approach. An excellent supercapacitive performance was achieved by the U-WO because of its large Brunauer-Emmett- Teller （BET） specific surface area （ca. 123 m2.g-1） and unique morphological and structural features. The U-WO electrodes not only exhibit a high rate-capability with a specific capacitance （Csp） of -235 F·g-1 at a current density of 20 A.g-1, but also superior long-life performance for 1,000 cycles, and even up to 7,000 cycles, showing -176 F·g-1 at a high current density of 40 A.g-1.

关键词： hierarchical structure W18O49 high-power long cycle life supercapacitor

Tailoring uniform γ-MnO2 nanosheets on highly conductive three-dimensional current collectors for high-performance supercapacitor electrodes

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Nano Research 2015年第3期8卷 990-1004页

作者： Sangbaek Park Hyun-Woo Shim chan Woo Lee Hee Jo Song Ik jae Park jae-chan kim Kug Sun Hong Dong-Wan kim Department of Materials Science and Engineering Seoul National University Seou1151-744 R. O. Korea School of Civil Environmental and Architectural Engineering Korea University Seou1136-713 R. O. Korea

Recent efforts have focused on the fabrication and application of three- dimensional （3-D） nanoarchitecture electrodes, which can exhibit excellent electrochemical performance. Herein, a novel strategy towards the design and synthesis of size- and thickness-tunable two-dimensional （2-D） MnO2 nanosheets on highly conductive one-dimensional （l-D） backbone arrays has been developed via a facile, one-step enhanced chemical bath deposition （ECBD） method at a low temperature （-50 ℃）. Inclusion of an oxidizing agent, BrO3-, in the solution was crucial in controlling the heterogeneous nucleation and growth of the nanosheets, and in inducing the formation of the tailored and uniformly arranged nanosheet arrays. We fabricated supercapacitor devices based on 3-D MnO2 nanosheets with conductive Sb-doped SnO2 nanobelts as the backbone. They achieved a specific capacitance of 162 F·g-1 at an extremely high current density of 20 A·g% and good cycling stability that shows a capacitance retention of -92% of its initial value, along with a coulombic efficiency of almost 100% after 5,000 cycles in an aqueous solution of I M Na2SO4. The results were attributed to the unique hierarchical structures, which provided a short diffusion path of electrolyte ions by means of the 2-D sheets and direct electrical connections to the current collector by 1-D arrays as well as the prevention of aggregation by virtue of the well-aligned 3-D structure.

关键词： nanosheets manganese oxide chemical bath deposition SnO2 nanobelts supercapacitor

Iridium‑Cluster‑Implanted Ruthenium Phosphide Electrocatalyst for Hydrogen Evolution Reaction

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Advanced Fiber Materials 2024年第1期6卷 158-169页

作者： Kyounghoon Jung Dwi Sakti Aldianto Pratama Andi Haryanto Jin Il Jang Hyung Min kim jae‑chan kim chan Woo Lee Dong‑Wan kim School of Civil Environmentaland Architectural EngineeringKorea UniversitySeoul 02841Republic of Korea Department of Chemistry Kookmin UniversitySeoul 02707Republic of Korea Materials Science and Chemical Engineering Center Institute for Advanced EngineeringYongin‑si 17180Republic of Korea

Ruthenium phosphide is a promising catalyst for hydrogen evolution due to its cost-effectiveness compared to *** it faces the challenge of having a high binding energy for hydrogen *** this study,we demonstrate that the incorporation of iridium in ruthenium phosphides lowers the binding energy of hydrogen intermediates,thereby controlling the overpotential and Tafel slope of hydrogen *** the Ir content was doped at 3 at.%,the catalyst achieved an overpotential of 33 mV and a Tafel slope of 33 mV dec^(-1) under acidic conditions,which are similar to those of the benchmark Pt/C *** situ Raman spectroscopy and density functional theory(DFT)calculations suggest that the enhanced catalytic activity originates from the near-neutral Gibbs free energy of hydrogen adsorption on the hollow site of the iridium cluster implanted onto ruthenium phosphide.

关键词： Water electrolysis Ruthenium phosphide Iridium substitution Electronic structure Hydrogen evolution reaction Electrospinning

间充质干细胞移植参与和促进家兔角膜碱烧伤愈合的机理研究

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间充质干细胞移植参与和促进家兔角膜碱烧伤愈合的机理研究

间充质干细胞移植参与和促进家兔角膜碱烧伤愈合的机理研究

中华医学会第十二届全国眼科学术大会

作者：叶娟吴涵姚克 jae chan kim 浙江大学医学院附属第二医院眼科中心

目的：研究和证实全身血循环移植的间充质干细胞(MSCs) 能移行和聚集到碱烧伤的角膜并促进角膜愈合,探索干细胞移植治疗角膜病的可行性。方法：建立家兔角膜碱烧伤模

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间充质干细胞移植参与和促进家兔角膜碱烧伤愈合的机理研究

Regulation of sleep by astrocytes in the hypothalamic ventrolateral preoptic nucleus

2007年浙江省眼科学术会议

作者：叶娟吴涵姚克 jae chan kim 浙江大学医学院附属第二医院眼科中心韩国中央大学眼科中心

目的：研究和证实全身血循环移植的间充质干细胞(MSCs)能移行和聚集到碱烧伤的角膜并促进角膜愈合,探索干细胞移植治疗角膜病的可行性。方法：建立家兔角膜碱烧伤模型。实验家兔分为四组：组一,正常骨髓功能,不接受 MSCs 移植;组二,正... 详细信息

目的：研究和证实全身血循环移植的间充质干细胞(MSCs)能移行和聚集到碱烧伤的角膜并促进角膜愈合,探索干细胞移植治疗角膜病的可行性。方法：建立家兔角膜碱烧伤模型。实验家兔分为四组：组一,正常骨髓功能,不接受 MSCs 移植;组二,正常骨髓功能,接受 MSCs 移植;组三,环磷酰胺抑制骨髓功能,不接受 MSCs 移植;组四,环磷酰胺抑制骨髓功能,接受 MSCs 移植;临床评估包括角膜上皮修复程度,角膜混浊程度和新生血管化程度。干细胞的增殖分化通过免疫组化检测细胞增殖核抗原(PCNA),P63,Vimentin,α-SMA 来评估,并即时监控移植细胞的移行情况。结果：随访1个月, 组二家兔临床恢复最快,角膜混浊程度明显降低,角膜烧伤14天后出现新生血管,并且角膜组织明显表达 PCNA．P63,Vimentin。DiI 标记的 MSCs 大量聚集在创伤角膜中并表达α-SMA。组三和组四家兔表现的极少的移植细胞在创伤角膜聚集,新生血管增殖缓慢和角膜愈合不良。结论：全身血循环移植的 MSCs 能移行和聚集到碱烧伤的角膜并通过增殖分化后促进角膜愈合,MSCs 的功能依赖正常骨髓微环境和造血干细胞的协同作用。

关键词：角膜碱烧伤干细胞

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Neural Regeneration Research 2025年第4期20卷 1098-1100页

作者： jae-Hong kim Ruqayya Afridi Il-Sung Jang Maan Gee Lee Kyoungho Suk Brain Korea 21 four KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of MedicineKyungpook National UniversityDaeguRepublic of Korea Department of Pharmacology School of DentistryKyungpook National UniversityDaeguRepublic of Korea Brain Science&Engineering Institute Kyungpook National UniversityDaeguRepublic of Korea

Astrocytes are functionally dynamic cells that support neurons in multiple ways throughout an organism’s *** astrocytic regulation of neuronal activity has been increasingly recognized in recent *** are now recognized as playing a more complex role than mere bystanders in the central nervous ***,their role in regulating the sleep neurocircuitry is not well *** this perspective,we highlight the role of astrocytes in sleep modulation,with a particular focus on regulatory mechanisms related to the ventrolateral preoptic nucleus(VLPO)of the *** briefly discuss recent literature reporting the role of VLPO astrocytes in regulating sleep-associated behaviors.

关键词： sleep ventrolateral astrocytes

Role of glutathione transferase in phase separation of FUS and TAF15 in neurons

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Neural Regeneration Research 2025年第7期20卷 1999-2000页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS)is a progressive neurodegenerative disorder characterized by the degeneration of motor neurons in the brain and spinal cord,leading to muscle weakness,paralysis,and ultimately death(Cleveland and Rothstein,2001).Frontotemporal lobar degeneration(FTLD)is a neurodegenerative disease affecting the frontal and temporal lobes of the brain,leading to changes in behavior,personality,and language(Van Langenhove et al.,2012).Both ALS and FTLD are classified as proteinopathies in which abnormal protein aggregation and accumulation in neurons contribute to the disease *** in sarcoma(FUS)is a DNA/RNA-binding protein involved in various cellular processes,including transcriptional regulation,RNA splicing,and DNA *** in the FUS gene have been linked to familial ALS,highlighting the importance of FUS in the disease pathogenesis(Vance et al.,2009).In ALS and FTLD,aberrant post-translational modifications(PTMs)of FUS,such as phosphorylation,acetylation,and methylation,have been implicated in the promotion of FUS aggregation and neurotoxicity(Choi et al.,2023).Therefore,understanding the regulatory mechanisms of FUS PTMs is crucial for developing targeted therapies against these diseases.

关键词： degeneration FUS aggregation

Carboplatin restores neuronal toxicity in FUS-linked amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第8期20卷 2319-2320页

作者： Kiyoung kim Department of Medical Science Soonchunhyang UniversityAsanKorea

Amyotrophic lateral sclerosis(ALS),also known as Lou Geh rig's disease,is a progressive neurodegenerative disorder that affects motor neurons in the brain and spinal *** leads to muscle weakness,paralysis,and ultimate... 详细信息

关键词： paralysis sclerosis respiratory

Recovery of the injured neural system through gene delivery to surviving neurons in Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2855-2861页

作者： chanchal Sharma Sehwan kim Hyemi Eo Sang Ryong kim School of Life Science Kyungpook National UniversityDaeguKorea BK21 FOUR KNU Creative BioResearch Group Kyungpook National University DaeguKorea Brain Science and Engineering Institute Kyungpook National UniversityDaeguKorea

A critical unaddressed problem in Parkinson’s disease is the lack of therapy that slows or hampers *** medications effectively manage symptoms,they offer no long-term benefit because they fail to address the underlying neuronal *** highlights that the elusive goals of halting progression and restoring damaged neurons limit the long-term impact of current *** clinical trials using gene therapy have demonstrated the safety of various vector delivery systems,dosages,and transgenes expressed in the central nervous system,signifying tangible and substantial progress in applying gene therapy as a promising Parkinson’s disease ***,at diagnosis,many dopamine neurons remain in the substantia nigra,offering a potential window for recovery and *** propose that modulating these surviving dopamine neurons and axons in the substantia nigra and striatum using gene therapy offers a potentially more impactful therapeutic approach for future ***,innovative gene therapies that focus on preserving the remaining elements may have significant potential for enhancing long-term outcomes and the quality of life for patients with Parkinson’s *** this review,we provide a perspective on how gene therapy can protect vulnerable elements in the substantia nigra and striatum,offering a novel approach to addressing Parkinson’s disease at its core.

关键词： adeno-associated virus gene therapy neuroprotection neurorestoration neurotrophic factor nigrostriatal dopamine pathway pro-survival protein