1
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Lee SO, Joo SH, Lee JY, Kwak AW, Kim KT, Cho SS, Yoon G, Choi YH, Park JW, Shim JH. Licochalcone C Inhibits the Growth of Human Colorectal Cancer HCT116 Cells Resistant to Oxaliplatin. Biomol Ther (Seoul) 2024; 32:104-114. [PMID: 38148556 PMCID: PMC10762277 DOI: 10.4062/biomolther.2023.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/12/2023] [Accepted: 10/19/2023] [Indexed: 12/28/2023] Open
Abstract
Licochalcone C (LCC; PubChem CID:9840805), a chalcone compound originating from the root of Glycyrrhiza inflata, has shown anticancer activity against skin cancer, esophageal squamous cell carcinoma, and oral squamous cell carcinoma. However, the therapeutic potential of LCC in treating colorectal cancer (CRC) and its underlying molecular mechanisms remain unclear. Chemotherapy for CRC is challenging because of the development of drug resistance. In this study, we examined the antiproliferative activity of LCC in human colorectal carcinoma HCT116 cells, oxaliplatin (Ox) sensitive and Ox-resistant HCT116 cells (HCT116-OxR). LCC significantly and selectively inhibited the growth of HCT116 and HCT116-OxR cells. An in vitro kinase assay showed that LCC inhibited the kinase activities of EGFR and AKT. Molecular docking simulations using AutoDock Vina indicated that LCC could be in ATP-binding pockets. Decreased phosphorylation of EGFR and AKT was observed in the LCC-treated cells. In addition, LCC induced cell cycle arrest by modulating the expression of cell cycle regulators p21, p27, cyclin B1, and cdc2. LCC treatment induced ROS generation in CRC cells, and the ROS induction was accompanied by the phosphorylation of JNK and p38 kinases. Moreover, LCC dysregulated mitochondrial membrane potential (MMP), and the disruption of MMP resulted in the release of cytochrome c into the cytoplasm and activation of caspases to execute apoptosis. Overall, LCC showed anticancer activity against both Ox-sensitive and Ox-resistant CRC cells by targeting EGFR and AKT, inducing ROS generation and disrupting MMP. Thus, LCC may be potential therapeutic agents for the treatment of Ox-resistant CRC cells.
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Affiliation(s)
- Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu 42601, Republic of Korea
| | - Ah-Won Kwak
- Biosystem Research Group, Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Ki-Taek Kim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Seung-Sik Cho
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Republic of Korea
| | - Jin Woo Park
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jung-Hyun Shim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China
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2
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Song M, Kim Y, Baek DS, Kim HY, Gu DH, Li H, Cunning BV, Yang SE, Heo SH, Lee S, Kim M, Lim JS, Jeong HY, Yoo JW, Joo SH, Ruoff RS, Kim JY, Son JS. 3D microprinting of inorganic porous materials by chemical linking-induced solidification of nanocrystals. Nat Commun 2023; 14:8460. [PMID: 38123571 PMCID: PMC10733400 DOI: 10.1038/s41467-023-44145-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023] Open
Abstract
Three-dimensional (3D) microprinting is considered a next-generation manufacturing process for the production of microscale components; however, the narrow range of suitable materials, which include mainly polymers, is a critical issue that limits the application of this process to functional inorganic materials. Herein, we develop a generalised microscale 3D printing method for the production of purely inorganic nanocrystal-based porous materials. Our process is designed to solidify all-inorganic nanocrystals via immediate dispersibility control and surface linking-induced interconnection in the nonsolvent linker bath and thereby creates multibranched gel networks. The process works with various inorganic materials, including metals, semiconductors, magnets, oxides, and multi-materials, not requiring organic binders or stereolithographic equipment. Filaments with a diameter of sub-10 μm are printed into designed complex 3D microarchitectures, which exhibit full nanocrystal functionality and high specific surface areas as well as hierarchical porous structures. This approach provides the platform technology for designing functional inorganics-based porous materials.
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Affiliation(s)
- Minju Song
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yoonkyum Kim
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Du San Baek
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Ho Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Da Hwi Gu
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Haiyang Li
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea
| | - Benjamin V Cunning
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Seong Eun Yang
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Seung Hwae Heo
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea
| | - Seunghyun Lee
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Minhyuk Kim
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hu Young Jeong
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jung-Woo Yoo
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Rodney S Ruoff
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Jin Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea.
| | - Jae Sung Son
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Gyeongsangbuk-do, 37673, Republic of Korea.
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3
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Jeong DS, Lee HJ, Park YJ, Hwang H, Ma KY, Kim M, Lim JS, Joo SH, Yang J, Shin HS. Langmuir-Blodgett Monolayer of Cobalt Phthalocyanine as Ultralow Loading Single-Atom Catalyst for Highly Efficient H 2O 2 Production. ACS Nano 2023. [PMID: 37991883 DOI: 10.1021/acsnano.3c08424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
The electrochemical production of H2O2 via the two-electron oxygen-reduction reaction (2e- ORR) has been actively studied using systems with atomically dispersed metal-nitrogen-carbon (M-N-C) structures. However, the development of well-defined M-N-C structures that restrict the migration and agglomeration of single-metal sites remains elusive. Herein, we demonstrate a Langmuir-Blodgett (LB) monolayer of cobalt phthalocyanine (CoPc) on monolayer graphene (LB CoPc/G) as a single-metal catalyst for the 2e- ORR. The as-prepared CoPc LB monolayer has a β-form crystalline structure with a lattice space for the facile adsorption of oxygen molecules on the cobalt active sites. The CoPc LB monolayer system provides highly exposed Co atoms in a well-defined structure without agglomeration, resulting in significantly improved catalytic activity, which is manifested by a very high H2O2 production rate per catalyst (31.04 mol gcat-1 h-1) and TOF (36.5 s-1) with constant production stability for 24 hours. To the best of our knowledge, the CoPc LB monolayer system exhibits the highest H2O2 production rate per active site. This fundamental study suggests that an LB monolayer of molecules with single-metal atoms as a well-defined structure works for single-atom catalysts.
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Affiliation(s)
- Da Sol Jeong
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hoon Ju Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Young Jin Park
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hyuntae Hwang
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kyung Yeol Ma
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Minsu Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jieun Yang
- Department of Chemistry, College of Science, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Hyeon Suk Shin
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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Shakya R, Byun MR, Joo SH, Chun KS, Choi JS. Domperidone Exerts Antitumor Activity in Triple-Negative Breast Cancer Cells by Modulating Reactive Oxygen Species and JAK/STAT3 Signaling. Biomol Ther (Seoul) 2023; 31:692-699. [PMID: 37899746 PMCID: PMC10616512 DOI: 10.4062/biomolther.2023.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/31/2023] Open
Abstract
The lack of molecular targets hampers the treatment of triple-negative breast cancer (TNBC). In this study, we determined the cytotoxicity of domperidone, a dopamine D2 receptor (DRD2) antagonist in human TNBC BT-549 and CAL-51 cells. Domperidone inhibited cell growth in a dose- and time-dependent manner. The annexin V/propidium iodide staining showed that domperidone induced apoptosis. The domperidone-induced apoptosis was accompanied by the generation of mitochondrial superoxide and the down-regulation of cyclins and CDKs. The apoptotic effect of domperidone on TNBC cells was prevented by pre-treatment with Mito-TEMPO, a mitochondria-specific antioxidant. The prevention of apoptosis with Mito-TEMPO even at concentrations as low as 100 nM, implies that the generation of mitochondrial ROS mediated the domperidone-induced apoptosis. Immunoblot analysis showed that domperidone-induced apoptosis occurred through the down-regulation of the phosphorylation of JAK2 and STAT3. Moreover, domperidone downregulated the levels of D2-like dopamine receptors including DRD2, regardless of their mRNA levels. Our results support further development of DRD2 antagonists as potential therapeutic strategy treating TNBC.
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Affiliation(s)
- Rajina Shakya
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Mi Ran Byun
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Joon-Seok Choi
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
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5
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Lee SO, Lee MH, Kwak AW, Lee JY, Yoon G, Joo SH, Choi YH, Park JW, Shim JH. Licochalcone H Targets EGFR and AKT to Suppress the Growth of Oxaliplatin -Sensitive and -Resistant Colorectal Cancer Cells. Biomol Ther (Seoul) 2023; 31:661-673. [PMID: 37899744 PMCID: PMC10616518 DOI: 10.4062/biomolther.2023.155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/31/2023] Open
Abstract
Treatment of colorectal cancer (CRC) has always been challenged by the development of resistance. We investigated the antiproliferative activity of licochalcone H (LCH), a regioisomer of licochalcone C derived from the root of Glycyrrhiza inflata, in oxaliplatin (Ox)-sensitive and -resistant CRC cells. LCH significantly inhibited cell viability and colony growth in both Ox-sensitive and Ox-resistant CRC cells. We found that LCH decreased epidermal growth factor receptor (EGFR) and AKT kinase activities and related activating signaling proteins including pEGFR and pAKT. A computational docking model indicated that LCH may interact with EGFR, AKT1, and AKT2 at the ATP-binding sites. LCH induced ROS generation and increased the expression of the ER stress markers. LCH treatment of CRC cells induced depolarization of MMP. Multi-caspase activity was induced by LCH treatment and confirmed by Z-VAD-FMK treatment. LCH increased the number of sub-G1 cells and arrested the cell cycle at the G1 phase. Taken together LCH inhibits the growth of Ox-sensitive and Ox-resistant CRC cells by targeting EGFR and AKT, and inducing ROS generation and ER stress-mediated apoptosis. Therefore, LCH could be a potential therapeutic agent for improving not only Ox-sensitive but also Ox-resistant CRC treatment.
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Affiliation(s)
- Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Ah-Won Kwak
- Biosystem Research Group, Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu 42601, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Republic of Korea
| | - Jin Woo Park
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jung-Hyun Shim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- The China-US (Henan) Hormel Cancer Institute, Zhengzhou 450008, China
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6
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Sa YJ, Kim S, Lee Y, Kim JM, Joo SH. Mesoporous Manganese Oxides with High-Valent Mn Species and Disordered Local Structures for Efficient Oxygen Electrocatalysis. ACS Appl Mater Interfaces 2023. [PMID: 37339373 DOI: 10.1021/acsami.3c03358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
Active and nonprecious-metal bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are vital components of clean energy conversion devices such as regenerative fuel cells and rechargeable metal-air batteries. Porous manganese oxides (MnOx) are promising electrocatalyst candidates because of their high surface area and the abundance of Mn. MnOx catalysts exhibit various oxidation states and crystal structures, which critically affect their electrocatalytic activity. These effects remain elusive mainly because the synthesis of oxidation-state-controlled porous MnOx with similar structural properties is challenging. In this work, four different mesoporous manganese oxides (m-MnOx) were synthesized and used as model catalysts to investigate the effects of local structures and Mn valence states on the activity toward oxygen electrocatalysis. The following activity trends were observed: m-Mn2O3 > m-MnO2 > m-MnO > m-Mn3O4 for the ORR and m-MnO2 > m-Mn2O3 > m-MnO ≈ m-Mn3O4 for the OER. These activity trends suggest that high-valent Mn species (Mn(III) and Mn(IV)) with disordered atomic arrangements induced by nanostructuring significantly influence electrocatalysis. In situ X-ray absorption spectroscopy was used to analyze the changes in the oxidation states under the ORR and OER conditions, which showed the surface phase transformation and generation of active species during electrocatalysis.
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Affiliation(s)
- Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Sohee Kim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Yesol Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Ji Man Kim
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
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Cho J, Lim T, Kim H, Meng L, Kim J, Lee S, Lee JH, Jung GY, Lee KS, Viñes F, Illas F, Exner KS, Joo SH, Choi CH. Importance of broken geometric symmetry of single-atom Pt sites for efficient electrocatalysis. Nat Commun 2023; 14:3233. [PMID: 37270530 DOI: 10.1038/s41467-023-38964-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 05/24/2023] [Indexed: 06/05/2023] Open
Abstract
Platinum single-atom catalysts hold promise as a new frontier in heterogeneous electrocatalysis. However, the exact chemical nature of active Pt sites is highly elusive, arousing many hypotheses to compensate for the significant discrepancies between experiments and theories. Here, we identify the stabilization of low-coordinated PtII species on carbon-based Pt single-atom catalysts, which have rarely been found as reaction intermediates of homogeneous PtII catalysts but have often been proposed as catalytic sites for Pt single-atom catalysts from theory. Advanced online spectroscopic studies reveal multiple identities of PtII moieties on the single-atom catalysts beyond ideally four-coordinated PtII-N4. Notably, decreasing Pt content to 0.15 wt.% enables the differentiation of low-coordinated PtII species from the four-coordinated ones, demonstrating their critical role in the chlorine evolution reaction. This study may afford general guidelines for achieving a high electrocatalytic performance of carbon-based single-atom catalysts based on other d8 metal ions.
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Affiliation(s)
- Junsic Cho
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Taejung Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Haesol Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ling Meng
- Departament de Ciència de Materials i Quı́mica Fı́sica & Institut de Quı́mica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Jinjong Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seunghoon Lee
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jong Hoon Lee
- UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Gwan Yeong Jung
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Kug-Seung Lee
- Beamline Department, Pohang Accelerator Laboratory, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Francesc Viñes
- Departament de Ciència de Materials i Quı́mica Fı́sica & Institut de Quı́mica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Francesc Illas
- Departament de Ciència de Materials i Quı́mica Fı́sica & Institut de Quı́mica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/ Martí i Franquès 1-11, 08028, Barcelona, Spain
| | - Kai S Exner
- Faculty of Chemistry, Theoretical Inorganic Chemistry, University of Duisburg-Essen, 45141 Essen, Germany; Cluster of Excellence RESOLV, 44801 Bochum, Germany; Center for Nanointegration Duisburg-Essen (CENIDE), 47057, Duisburg, Germany.
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea.
- Department of Chemistry, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Chang Hyuck Choi
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
- Institute for Convergence Research and Education in Advanced Technology (I-CREATE), Yonsei University, Seoul, 03722, Republic of Korea.
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8
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Lee JY, Lee SO, Kwak AW, Chae SB, Cho SS, Yoon G, Kim KT, Choi YH, Lee MH, Joo SH, Park JW, Shim JH. 3-Deoxysappanchalcone Inhibits Cell Growth of Gefitinib-Resistant Lung Cancer Cells by Simultaneous Targeting of EGFR and MET Kinases. Biomol Ther (Seoul) 2023:biomolther.2023.070. [PMID: 37188656 DOI: 10.4062/biomolther.2023.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/09/2023] [Accepted: 04/18/2023] [Indexed: 05/17/2023] Open
Abstract
The mechanistic functions of 3-deoxysappanchalcone (3-DSC), a chalcone compound known to have many pharmacological effects on lung cancer, have not yet been elucidated. In this study, we identified the comprehensive anti-cancer mechanism of 3-DSC, which targets EGFR and MET kinase in drug-resistant lung cancer cells. 3-DSC directly targets both EGFR and MET, thereby inhibiting the growth of drug-resistant lung cancer cells. Mechanistically, 3-DSC induced cell cycle arrest by modulating cell cycle regulatory proteins, including cyclin B1, cdc2, and p27. In addition, concomitant EGFR downstream signaling proteins such as MET, AKT, and ERK were affected by 3-DSC and contributed to the inhibition of cancer cell growth. Furthermore, our results show that 3-DSC increased redox homeostasis disruption, ER stress, mitochondrial depolarization, and caspase activation in gefitinib-resistant lung cancer cells, thereby abrogating cancer cell growth. 3-DSC induced apoptotic cell death which is regulated by Mcl-1, Bax, Apaf-1, and PARP in gefitinib-resistant lung cancer cells. 3-DSC also initiated the activation of caspases, and the pan-caspase inhibitor, Z-VAD-FMK, abrogated 3-DSC induced-apoptosis in lung cancer cells. These data imply that 3-DSC mainly increased mitochondria-associated intrinsic apoptosis in lung cancer cells to reduce lung cancer cell growth. Overall, 3-DSC inhibited the growth of drug-resistant lung cancer cells by simultaneously targeting EGFR and MET, which exerted anti-cancer effects through cell cycle arrest, mitochondrial homeostasis collapse, and increased ROS generation, eventually triggering anticancer mechanisms. 3-DSC could potentially be used as an effective anti-cancer strategy to overcome EGFR and MET target drug-resistant lung cancer.
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Affiliation(s)
- Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu 42601, Republic of Korea
| | - Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Ah-Won Kwak
- Biosystem Research Group, Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Seon-Bin Chae
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Seung-Sik Cho
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Ki-Taek Kim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Yung Hyun Choi
- Department of Biochemistry, College of Korean Medicine, Dong-Eui University, Busan 47227, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Jin Woo Park
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jung-Hyun Shim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
- The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China
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9
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Lee KS, Kim JJ, Joo SH, Park MS, Yoo JH, Gu G, Lee J. Atomic-scale interpretation of the quantum oscillations in cuprate superconductors. J Phys Condens Matter 2023; 35:21LT01. [PMID: 36898156 DOI: 10.1088/1361-648x/acc379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Cuprate superconductors display unusual features in bothkspace and real space as the superconductivity is suppressed-a broken Fermi surface, charge density wave, and pseudogap. Contrarily, recent transport measurements on cuprates under high magnetic fields report quantum oscillations (QOs), which imply rather a usual Fermi liquid behavior. To settle the disagreement, we investigated Bi2Sr2CaCu2O8+δunder a magnetic field in an atomic scale. A particle-hole (p-h) asymmetrically dispersing density of states (DOSs) modulation was found at the vortices on a slightly underdoped sample, while on a highly underdoped sample, no trace of the vortex was found even at 13 T. However, a similar p-h asymmetric DOS modulation persisted in almost an entire field of view. From this observation, we infer an alternative explanation of the QO results by providing a unifying picture where the aforementioned seemingly conflicting evidence from angle-resolved photoemission spectroscopy, spectroscopic imaging scanning tunneling microscopy, and magneto-transport measurements can be understood solely in terms of the DOS modulations.
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Affiliation(s)
- K S Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - J-J Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - S H Joo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - M S Park
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - J H Yoo
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
| | - Genda Gu
- CMPMS Department, Brookhaven National Laboratory, Upton, New York 11973, United States of America
| | - Jinho Lee
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Republic of Korea
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10
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Lee JY, Kang BY, Jung SJ, Kwak AW, Lee SO, Park JW, Joo SH, Yoon G, Lee MH, Shim JH. Picropodophyllotoxin Inhibits Cell Growth and Induces Apoptosis in Gefitinib-Resistant Non-Small Lung Cancer Cells by Dual-Targeting EGFR and MET. Biomol Ther (Seoul) 2023; 31:200-209. [PMID: 36281696 PMCID: PMC9970835 DOI: 10.4062/biomolther.2022.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/05/2022] Open
Abstract
Patients with non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) amplification or sensitive mutations initially respond to the tyrosine kinase inhibitor gefitinib, however, the treatment becomes less effective over time by resistance mechanism including mesenchymal-epithelial transition (MET) overexpression. A therapeutic strategy targeting MET and EGFR may be a means to overcoming resistance to gefitinib. In the present study, we found that picropodophyllotoxin (PPT), derived from the roots of Podophyllum hexandrum, inhibited both EGFR and MET in NSCLC cells. The antitumor efficacy of PPT in gefitinib-resistant NSCLC cells (HCC827GR), was confirmed by suppression of cell proliferation and anchorage-independent colony growth. In the targeting of EGFR and MET, PPT bound with EGFR and MET, ex vivo, and blocked both kinases activity. The binding sites between PPT and EGFR or MET in the computational docking model were predicted at Gly772/Met769 and Arg1086/Tyr1230 of each ATP-binding pocket, respectively. PPT treatment of HCC827GR cells increased the number of annexin V-positive and subG1 cells. PPT also caused G2/M cell-cycle arrest together with related protein regulation. The inhibition of EGFR and MET by PPT treatment led to decreases in the phosphorylation of the downstream-proteins, AKT and ERK. In addition, PPT induced reactive oxygen species (ROS) production and GRP78, CHOP, DR5, and DR4 expression, mitochondrial dysfunction, and regulated involving signal-proteins. Taken together, PPT alleviated gefitinib-resistant NSCLC cell growth and induced apoptosis by reducing EGFR and MET activity. Therefore, our results suggest that PPT can be a promising therapeutic agent for gefitinib-resistant NSCLC.
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Affiliation(s)
- Jin-Young Lee
- Department of Biological Sciences, Keimyung University, Daegu 42601, Republic of Korea
| | - Bok Yun Kang
- College of Pharmacy, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Sang-Jin Jung
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Ah-Won Kwak
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jin Woo Park
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea,Corresponding Authors E-mail: (Shim JH), (Lee MH), Tel: +82-61-450-2684 (Shim JH), +82-61-330-3516 (Lee MH), Fax: +82-61-450-2689 (Shim JH), +82-61-330-3519 (Lee MH)
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea,The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China,Corresponding Authors E-mail: (Shim JH), (Lee MH), Tel: +82-61-450-2684 (Shim JH), +82-61-330-3516 (Lee MH), Fax: +82-61-450-2689 (Shim JH), +82-61-330-3519 (Lee MH)
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11
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Lim T, Kim J, Joo SH. Electrocatalysis of Selective Chlorine Evolution Reaction: Fundamental Understanding and Catalyst Design. J ELECTROCHEM SCI TE 2023. [DOI: 10.33961/jecst.2022.01032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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12
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Lim JS, Kim J, Lee KS, Sa YJ, Joo SH. Impact of Catalyst Loading of Atomically Dispersed Transition Metal Catalysts on H2O2 Electrosynthesis Selectivity. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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13
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Giri S, Park GH, Choi JS, Ma E, Chun KS, Joo SH. MS-5, a Naphthalene Derivative, Induces Apoptosis in Human Pancreatic Cancer BxPC-3 Cells by Modulating Reactive Oxygen Species. Biomol Ther (Seoul) 2023; 31:68-72. [PMID: 36380602 PMCID: PMC9810442 DOI: 10.4062/biomolther.2022.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/07/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022] Open
Abstract
Pancreatic cancer is one of the most fatal cancers with a poor prognosis. Standard chemotherapies have proven largely ineffective because of their toxicity and the development of resistance. Therefore, there is an urgent need to develop novel therapies. In this study, we investigated the antitumor activity of MS-5, a naphthalene derivative, on BxPC-3, a human pancreatic cancer cell line. We observed that MS-5 was cytotoxic to BxPC-3 cells, as well as inhibited the growth of cells in a concentration- and time- dependent manner. Flow cytometry analysis revealed that the percentage of annexin V-positive cells increased after MS-5 treatment. We also observed cleavage of caspases and poly (ADP-ribose) polymerase, and downregulation of Bcl-xL protein. Flow cytometry analysis of intracellular levels of reactive oxygen species (ROS) and mitochondrial superoxide suggested that MS-5 induced the generation of mitochondrial superoxide while lowering the overall intracellular ROS levels. Thus, MS-5 may be potential candidate for pancreatic cancer treatment.
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Affiliation(s)
- Suman Giri
- Department of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Gyu Hwan Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Joon-Seok Choi
- Department of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Eunsook Ma
- Department of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea,Corresponding Authors E-mail: (Joo SH), (Chun KS), Tel: +82-53-850-3614 (Joo SH), +82-53-580-6647 (Chun KS), Fax: +82-53-359-6729 (Joo SH), +82-53-580-6645 (Chun KS)
| | - Sang Hoon Joo
- Department of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea,Corresponding Authors E-mail: (Joo SH), (Chun KS), Tel: +82-53-850-3614 (Joo SH), +82-53-580-6647 (Chun KS), Fax: +82-53-359-6729 (Joo SH), +82-53-580-6645 (Chun KS)
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14
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Lee J, Lee Y, Lim JS, Kim SW, Jang H, Seo B, Joo SH, Sa YJ. Discriminating active sites for the electrochemical synthesis of H 2O 2 by molecular functionalisation of carbon nanotubes. Nanoscale 2022; 15:195-203. [PMID: 36477469 DOI: 10.1039/d2nr04652k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The electrochemical production of H2O2via the two-electron oxygen reduction reaction (2e- ORR) has recently attracted attention as a promising alternative to the current anthraquinone process. Identification of active sites in O-doped carbon materials, which exhibit high activities and selectivities for the 2e- ORR, is important for understanding the selective electrocatalytic process and achieving the rational design of active electrocatalysts. However, this is impeded by the heterogeneous distribution of various active sites on these catalysts. In this study, we exploited the molecular functionalisation approach to implant anthraquinone, benzoic acid, and phenol groups on carbon nanotubes and systematically compared the electrocatalytic activities and selectivities of these functional groups. Among these oxygen functional groups, the anthraquinone group showed the highest surface-area-normalised and active-site-normalised activities.
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Affiliation(s)
- Juyeon Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Yesol Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - June Sung Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sun Woo Kim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
| | - Bora Seo
- Hydrogen and Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Division of Energy & Environment Technology, KIST School, University of Science and Technology (UST), Seoul, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea.
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15
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Kim HY, Jun M, Lee K, Joo SH. Skeletal Nanostructures Promoting Electrocatalytic Reactions with Three-Dimensional Frameworks. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ho Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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16
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Kim HY, Jun M, Joo SH, Lee K. Intermetallic Nanoarchitectures for Efficient Electrocatalysis. ACS Nanosci Au 2022; 3:28-36. [PMID: 37101463 PMCID: PMC10125321 DOI: 10.1021/acsnanoscienceau.2c00045] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/20/2022] [Accepted: 10/20/2022] [Indexed: 11/05/2022]
Abstract
Intermetallic structures whose regular atomic arrays of constituent elements present unique catalytic properties have attracted considerable attention as efficient electrocatalysts for energy conversion reactions. Further performance enhancement in intermetallic catalysts hinges on constructing catalytic surfaces possessing high activity, durability, and selectivity. In this Perspective, we introduce recent endeavors to boost the performance of intermetallic catalysts by generating nanoarchitectures, which have well-defined size, shape, and dimension. We discuss the beneficial effects of nanoarchitectures compared with simple nanoparticles in catalysis. We highlight that the nanoarchitectures have high intrinsic activity owing to their inherent structural factors, including controlled facets, surface defects, strained surfaces, nanoscale confinement effects, and a high density of active sites. We next present notable examples of intermetallic nanoarchitectures, namely, facet-controlled intermetallic nanocrystals and multidimensional nanomaterials. Finally, we suggest the future research directions of intermetallic nanoarchitectures.
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Affiliation(s)
- Ho Young Kim
- Hydrogen·Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), 14-gil 5 Hwarang-ro, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Science, Korea University, Seoul 02841, Republic of Korea
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17
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Shakya R, Park GH, Joo SH, Shim JH, Choi JS. Hydroxyzine Induces Cell Death in Triple-Negative Breast Cancer Cells via Mitochondrial Superoxide and Modulation of Jak2/STAT3 Signaling. Biomol Ther (Seoul) 2022; 30:585-592. [PMID: 36305293 PMCID: PMC9622314 DOI: 10.4062/biomolther.2022.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 09/30/2022] [Accepted: 10/01/2022] [Indexed: 11/30/2022] Open
Abstract
Treatment of triple-negative breast cancer (TNBC) has been limited due to the lack of molecular targets. In this study, we evaluated the cytotoxicity of hydroxyzine, a histamine H1 receptor antagonist in human triple-negative breast cancer BT-20 and HCC-70 cells. Hydroxyzine inhibited the growth of cells in dose- and time-dependent manners. The annexin V/propidium iodide double staining assay showed that hydroxyzine induced apoptosis. The hydroxyzine-induced apoptosis was accompanied down-regulation of cyclins and CDKs, as well as the generation of reactive oxygen species (ROS) without cell cycle arrest. The effect of hydroxyzine on the induction of ROS and apoptosis on TNBC cells was prevented by pre-treatment with ROS scavengers, N-acetyl cysteine or Mito-TEMPO, a mitochondria-targeted antioxidant, indicating that an increase in the generation of ROS mediated the apoptosis induced by hydroxyzine. Western blot analysis showed that hydroxyzine-induced apoptosis was through down-regulation of the phosphorylation of JAK2 and STAT3 by hydroxyzine treatment. In addition, hydroxyzine induced the phosphorylation of JNK and p38 MAPK. Our results indicate that hydroxyzine induced apoptosis via mitochondrial superoxide generation and the suppression of JAK2/STAT3 signaling.
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Affiliation(s)
- Rajina Shakya
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430,
| | - Gyu Hwan Park
- College of Pharmacy, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu 41566,
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430,
| | - Jung-Hyun Shim
- College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Joon-Seok Choi
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430,
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18
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Kim JH, Sa YJ, Lim T, Woo J, Joo SH. Steering Catalytic Selectivity with Atomically Dispersed Metal Electrocatalysts for Renewable Energy Conversion and Commodity Chemical Production. Acc Chem Res 2022; 55:2672-2684. [PMID: 36067418 DOI: 10.1021/acs.accounts.2c00409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Electrocatalysis is a key driver in promoting the paradigm shift from the current fossil-fuel-based hydrocarbon economy to a renewable-energy-driven hydrogen economy. The success of electrocatalysis hinges primarily on achieving high catalytic selectivity along with maximum activity and sustained longevity. Many electrochemical reactions proceed through multiple pathways, requiring highly selective catalysts.Atomically dispersed metal catalysts have emerged as a new frontier in heterogeneous catalysis. In addition to the widely perceived advantages of maximized active site utilization and substantially reduced metal content, they have shown different catalytic selectivities in some electrocatalytic reactions compared to the traditional nanoparticle (NP)-based catalysts. Although there have been significant advances in their synthesis, the highly energetic nature of a single atomic site has made the preparation of atomically dispersed metal catalysts rely on empiricism rather than rational design. Consequently, the structural comprehension of a single atomic site and the understanding of its unusual electrocatalytic selectivity remain largely elusive.In this Account, we describe our endeavors toward developing general synthetic approaches for atomically dispersed metal catalysts for the discovery of new selective and active electrocatalysts and to understand their catalytic nature. We introduce synthetic approaches to produce a wide range of nonprecious- and precious-metal-based atomically dispersed catalysts and control their coordination environments. Metallomacrocyclic-compound-driven top-down and metal salt/heteroatom layer-based bottom-up strategies, coupled with a SiO2-protective-layer-assisted method, have been developed that can effectively generate single atomic sites while mitigating the formation of metallic NPs. The low-temperature gas-phase ligand exchange method can reversibly tune the coordination structure of the atomically dispersed metal sites. We have used the prepared atomically dispersed metal catalysts as model systems to investigate their electrocatalytic reactivity for renewable energy conversion and commodity chemical production reactions, in which high selectivity is important. The reactions of our interest include the following: (i) the oxygen reduction reaction, where O2 is reduced to either H2O or H2O2 via the four-electron or two electron pathway, respectively; (ii) the CO2 reduction reaction, which should suppress the hydrogen evolution reaction; and (iii) the chlorine evolution reaction, which competes with the oxygen evolution reaction. The type of metal center to which the reactant is directly bound is found to be the most important in determining the selectivity, which originates from the dramatic changes in the binding energy of each metal center with the reactants. The coordination structure surrounding the metal center also has a significant effect on the selectivity; its control can modulate the oxidation state of the metal center, thereby altering the binding strength with the reactants.We envisage that future advances in the synthesis of atomically dispersed metal catalysts, combined with the growing power of computational, spectroscopic, and microscopic methods, will bring their synthesis to the level of rational design. Elaborately designed catalysts can overcome the current limits of catalytic selectivity, which will help establish the field of atomically dispersed metal catalysts as an important branch of catalysis.
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Affiliation(s)
- Jae Hyung Kim
- Clean Fuel Research Laboratory, Korea Institute of Energy Research, Daejeon34129, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul01897, Republic of Korea
| | - Taejung Lim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan44919, Republic of Korea
| | - Jinwoo Woo
- Center for Hydrogen and Fuel Cell Research, Korea Institute of Science and Technology (KIST), Seoul02792, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan44919, Republic of Korea
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19
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Affiliation(s)
- Du San Baek
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan Republic of Korea
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20
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Kim JH, Yoon S, Baek DS, Kim J, Kim J, An K, Joo SH. Boosting Thermal Stability of Volatile Os Catalysts by Downsizing to Atomically Dispersed Species. JACS Au 2022; 2:1811-1817. [PMID: 36032528 PMCID: PMC9400046 DOI: 10.1021/jacsau.2c00090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Os-based catalysts present remarkable catalytic activity; however, their use has been limited by the undesirable side reactions that generate highly toxic and volatile OsO4 even at room temperature. Herein, we demonstrate that the thermal stability of Os-based catalysts can be dramatically improved by downsizing Os nanoparticles (NPs) into atomically dispersed species. We observed that Os NPs were converted into OsO4 after calcination at 250 °C followed by sublimation, whereas single Os sites retained their structure after calcination. Temperature-programmed oxidation analysis confirmed that Os NPs started to undergo oxidation at 130 °C, whereas atomically dispersed Os preserved its state up to 300 °C. The CO oxidation activity of the atomically dispersed Os catalyst at 400 °C (100% conversion) was stably preserved over 30 h. By contrast, the activity of Os NP catalyst declined drastically. This study highlights the unique catalytic behavior of atomically dispersed catalysts, which is distinct from that of NP-based catalysts.
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Affiliation(s)
- Jae Hyung Kim
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic
of Korea
- Clean
Fuel Research Laboratory, Korea Institute
of Energy Research, 152
Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
| | - Sinmyung Yoon
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic
of Korea
| | - Du San Baek
- Department
of Chemistry, Ulsan National Institute of
Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jihun Kim
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic
of Korea
| | - Jinjong Kim
- Department
of Chemistry, Ulsan National Institute of
Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kwangjin An
- School
of Energy and Chemical Engineering, Ulsan
National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic
of Korea
| | - Sang Hoon Joo
- Department
of Chemistry, Ulsan National Institute of
Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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21
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Baek DS, Lee J, Kim J, Joo SH. Metastable Phase-Controlled Synthesis of Mesoporous Molybdenum Carbides for Efficient Alkaline Hydrogen Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01772] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Du San Baek
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jinyoung Lee
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jinjong Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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22
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Chun KS, Joo SH. Modulation of Reactive Oxygen Species to Overcome 5-Fluorouracil Resistance. Biomol Ther (Seoul) 2022; 30:479-489. [PMID: 35440517 PMCID: PMC9622305 DOI: 10.4062/biomolther.2022.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/29/2022] [Accepted: 03/30/2022] [Indexed: 11/17/2022] Open
Abstract
5-Fluorouracil (5-FU) remains to be an important chemotherapeutic drug for treating several cancers when targeted therapy is unavailable. Chemoresistance limits the clinical utility of 5-FU, and new strategies are required to overcome the resistance. Reactive oxygen species (ROS) and antioxidants are balanced differently in both normal and cancer cells. Modulating ROS can be one method of overcoming 5-FU resistance. This review summarizes selected compounds and endogenous cellular targets modulating ROS generation to overcome 5-FU resistance.
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Affiliation(s)
- Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu 42601, Republic of Korea
| | - Sang Hoon Joo
- Department of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
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23
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Park KH, Joo SH, Seo JH, Kim J, Yoon G, Jeon YJ, Lee MH, Chae JI, Kim WK, Shim JH. Licochalcone H Induces Cell Cycle Arrest and Apoptosis in Human Skin Cancer Cells by Modulating JAK2/STAT3 Signaling. Biomol Ther (Seoul) 2022; 30:72-79. [PMID: 34873073 PMCID: PMC8724845 DOI: 10.4062/biomolther.2021.149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/30/2022] Open
Abstract
Licochalcone H (LCH) is a phenolic compound synthetically derived from licochalcone C (LCC) that exerts anticancer activity. In this study, we investigated the anticancer activity of LCH in human skin cancer A375 and A431 cells. The 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) cell viability assay was used to evaluate the antiproliferative activity of LCH. Cell cycle distribution and the induction of apoptosis were analyzed by flow cytometry. Western blotting assays were performed to detect the levels of proteins involved in cell cycle progression, apoptosis, and the JAK2/STAT3 signaling pathway. LCH inhibited the growth of cells in dose- and time-dependent manners. The annexin V/propidium iodide double staining assay revealed that LCH induced apoptosis, and the LCH-induced apoptosis was accompanied by cell cycle arrest in the G1 phase. Western blot analysis showed that the phosphorylation of JAK2 and STAT3 was decreased by treatment with LCH. The inhibition of the JAK2/STAT3 signaling pathway by pharmacological inhibitors against JAK2/STAT3 (cryptotanshinone (CTS) and S3I-201) simulated the antiproliferative effect of LCH suggesting that LCH induced apoptosis by modulating JAK2/STAT3 signaling.
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Affiliation(s)
- Kyung-Ho Park
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Ji-Hye Seo
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jumi Kim
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Young-Joo Jeon
- Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Jung-Il Chae
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Woo-Keun Kim
- Biosystem Research Group, Department of Predictive Toxicology, Korea Institute of Toxicology, Daejeon 34114, Republic of Korea
| | - Jung-Hyun Shim
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea.,The China -US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China
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24
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Ko M, Kim Y, Woo J, Lee B, Mehrotra R, Sharma P, Kim J, Hwang SW, Jeong HY, Lim H, Joo SH, Jang JW, Kwak JH. Direct propylene epoxidation with oxygen using a photo-electro-heterogeneous catalytic system. Nat Catal 2021. [DOI: 10.1038/s41929-021-00724-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Lee SO, Kwak AW, Lee MH, Seo JH, Cho SS, Yoon G, Chae JI, Joo SH, Shim JH. Picropodophyllotoxin Induces G1 Cell Cycle Arrest and Apoptosis in Human Colorectal Cancer Cells via ROS Generation and Activation of p38 MAPK Signaling Pathway. J Microbiol Biotechnol 2021; 31:1615-1623. [PMID: 34528917 PMCID: PMC9705953 DOI: 10.4014/jmb.2109.09012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/13/2021] [Indexed: 12/15/2022]
Abstract
Picropodophyllotoxin (PPT), an epimer of podophyllotoxin, is derived from the roots of Podophyllum hexandrum and exerts various biological effects, including anti-proliferation activity. However, the effect of PPT on colorectal cancer cells and the associated cellular mechanisms have not been studied. In the present study, we explored the anticancer activity of PPT and its underlying mechanisms in HCT116 cells. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to monitor cell viability. Flow cytometry was used to evaluate cell cycle distribution, the induction of apoptosis, the level of reactive oxygen species (ROS), assess the mitochondrial membrane potential (Δψm), and multi-caspase activity. Western blot assays were performed to detect the expression of cell cycle regulatory proteins, apoptosis-related proteins, and p38 MAPK (mitogen-activated protein kinase). We found that PPT induced apoptosis, cell cycle arrest at the G1 phase, and ROS in the HCT116 cell line. In addition, PPT enhanced the phosphorylation of p38 MAPK, which regulates apoptosis and PPT-induced apoptosis. The phosphorylation of p38 MAPK was inhibited by an antioxidant agent (N-acetyl-L-cysteine, NAC) and a p38 inhibitor (SB203580). PPT induced depolarization of the mitochondrial inner membrane and caspase-dependent apoptosis, which was attenuated by exposure to Z-VAD-FMK. Overall, these data indicate that PPT induced G1 arrest and apoptosis via ROS generation and activation of the p38 MAPK signaling pathway.
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Affiliation(s)
- Seung-On Lee
- Department of Biomedicine, Health and Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea
| | - Ah-Won Kwak
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju, Jeonnam 58245, Republic of Korea
| | - Ji-Hye Seo
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Seung-Sik Cho
- Department of Biomedicine, Health and Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea,Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea
| | - Jung-Il Chae
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju, Jeonbuk 54896, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan, Gyeongbuk 38430, Republic of Korea,Corresponding author S.H. Joo Phone: +82-53-850-3614 Fax: +82-53-359-6729 E-mail:
| | - Jung-Hyun Shim
- Department of Biomedicine, Health and Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea,Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea,The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan, 450008, P.R. China,
J.H. Shim Phone: +82-61-450-2684 Fax: +82-61-450-2689 E-mail:
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26
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Lee J, Lim JS, Yim G, Jang H, Joo SH, Sa YJ. Unveiling the Cationic Promotion Effect of H 2O 2 Electrosynthesis Activity of O-Doped Carbons. ACS Appl Mater Interfaces 2021; 13:59904-59914. [PMID: 34882382 DOI: 10.1021/acsami.1c17727] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
H2O2 electrosynthesis is an emerging clean chemical technology, whose efficiency critically depends on the activity and selectivity of electrocatalysts for two-electron oxygen reduction reaction (2e- ORR). Here, we demonstrate that 2e- ORR activity of oxygen-doped carbons, which have been one of the most promising catalysts for this reaction, can be substantially influenced by the types and concentrations of cations in electrolytes. Heat-treated carbon comprising active oxygen functional groups exhibits cation-dependent 2e- ORR activity trends in alkaline media, following the order Cs+ > K+ > Li+. Importantly, an electrolyte with a high cation concentration (0.1 M KOH + 0.5 M KCl) afforded the highest 2e- ORR mass activity (250 ± 30 A gcat-1 at 0.70 V vs reversible hydrogen electrode) ever reported. We have established that the cation promotion effect correlates with cation-dependent electron-transfer kinetics, which regulates the rate-determining first electron transfer to O2.
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Affiliation(s)
- Juyeon Lee
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Gyeonghye Yim
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Hongje Jang
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
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Park SJ, Joo SH, Lee N, Jang WJ, Seo JH, Jeong CH. ACY-241, an HDAC6 inhibitor, overcomes erlotinib resistance in human pancreatic cancer cells by inducing autophagy. Arch Pharm Res 2021; 44:1062-1075. [PMID: 34761352 DOI: 10.1007/s12272-021-01359-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 11/01/2021] [Indexed: 10/19/2022]
Abstract
Histone deacetylase 6 (HDAC6) is a promising target for cancer treatment because it regulates cell mobility, protein trafficking, cell growth, apoptosis, and metastasis. However, the mechanism of HDAC6-induced anticancer drug resistance is unclear. In this study, we evaluated the anticancer effect of ACY-241, an HDAC6-selective inhibitor, on erlotinib-resistant pancreatic cancer cells that overexpress HDAC6. Our data revealed that ACY-241 hyperacetylated the HDAC6 substrate, α-tubulin, leading to a significant reduction in cell viability of erlotinib-resistant pancreatic cells, BxPC3-ER and HPAC-ER. Notably, a synergistic anticancer effect was observed in cells that received combined treatment with ACY-241 and erlotinib. Combined treatment effectively induced autophagy and inhibited autophagy through siLC3B, and siATG5 alleviated ACY-241-mediated cell death, as reflected by the recovery of PARP cleavage and apoptosis rates. In addition, combined ACY-241 and erlotinib treatment induced autophagy and subsequently, cell death by reducing AKT-mTOR activity and increasing phospho-AMPK signaling. Therefore, HDAC6 may be involved in the suppression of autophagy and acquisition of resistance to erlotinib in ER pancreatic cancer cells. ACY-241 to overcome erlotinib resistance could be an effective therapeutic strategy against pancreatic cancer.
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Affiliation(s)
- Seong-Jun Park
- College of Pharmacy, Keimyung University, 1095 Dalgubeil-daero, Daegu, 42601, South Korea
| | - Sang Hoon Joo
- Department of Pharmacy, Daegu Catholic University, Gyeongsan, 38430, South Korea
| | - Naeun Lee
- College of Pharmacy, Keimyung University, 1095 Dalgubeil-daero, Daegu, 42601, South Korea
| | - Won-Jun Jang
- College of Pharmacy, Keimyung University, 1095 Dalgubeil-daero, Daegu, 42601, South Korea
| | - Ji Hae Seo
- Department of Biochemistry, Keimyung University School of Medicine, 1095 Dalgubeil-daero, Daegu, 42601, South Korea.
| | - Chul-Ho Jeong
- College of Pharmacy, Keimyung University, 1095 Dalgubeil-daero, Daegu, 42601, South Korea.
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29
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Seol DW, Joo SH, Kim YH, Song BS, Sim BW, Kim SU, Park S, Wee G, Kim E. Sperm hyaluronidase is critical to mammals' fertilization for its ability to disperse cumulus-oocyte complex layer. Asian J Androl 2021; 24:411-415. [PMID: 34850748 PMCID: PMC9295470 DOI: 10.4103/aja202176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Glycosylphosphatidylinositol-anchored sperm hyaluronidases have long been believed to assist in sperm penetration through the cumulus–oocyte complex (COC); however, their role in mammalian fertilization remains unclear. Previously, we have shown that hyaluronidase 5 (Hyal5)/Hyal7 double-knockout (dKO) mice produce significantly fewer offspring than their wild-type (WT) counterparts because of defective COC dispersal. Male infertility is mainly caused by a low sperm count. It can be further exacerbated by the deficiency of sperm hyaluronidase, which disperses the cumulus cells of the outer layer of the COC. In the current study, we evaluated the effects of a low count of Hyal-deficient sperm and conditions of ovulated oocytes on the fertilization rate using a mouse model. Our results demonstrated that a low sperm count further decreases the in vitro fertilization (IVF) rate of Hyal-deficient dKO spermatozoa. In addition, the dKO spermatozoa resulted in a fertilization rate of 12.5% upon fertilizing COCs with a thick cumulus layer, whereas the IVF rate was comparable to that of WT spermatozoa when oocytes with a thin or no cumulus layer were fertilized. Finally, we proved that the IVF rate of dKO spermatozoa could be recovered by adding rat spermatozoa as a source of sperm hyal. Our results suggest that a deficiency of proteins involved in fertilization, such as sperm hyal, has a vital role in fertilization.
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Affiliation(s)
- Dong-Won Seol
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Korea
| | - Sang Hoon Joo
- College of Pharmacy, Catholic University of Daegu, Gyeongbuk 38430, Korea
| | - Young-Hyun Kim
- National Primate Research Center (NPCR), Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, Korea
| | - Bong-Seok Song
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, Korea
| | - Bo-Woong Sim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, Korea
| | - Sun-Uk Kim
- Futuristic Animal Resource and Research Center, Korea Research Institute of Bioscience and Biotechnology, Chungcheongbuk-do 28116, Korea
| | - Soojin Park
- Department of Biochemistry and Molecular Biology, Melvin and Bren Simon Comprehensive Cancer Center, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Gabbine Wee
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Korea
| | - Ekyune Kim
- College of Pharmacy, Catholic University of Daegu, Gyeongbuk 38430, Korea
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30
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Lee SO, Joo SH, Kwak AW, Lee MH, Seo JH, Cho SS, Yoon G, Chae JI, Shim JH. Podophyllotoxin Induces ROS-Mediated Apoptosis and Cell Cycle Arrest in Human Colorectal Cancer Cells via p38 MAPK Signaling. Biomol Ther (Seoul) 2021; 29:658-666. [PMID: 34642263 PMCID: PMC8551740 DOI: 10.4062/biomolther.2021.143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 12/29/2022] Open
Abstract
Podophyllotoxin (PT), a lignan compound from the roots and rhizomes of Podophyllum peltatum, has diverse pharmacological activities including anticancer effect in several types of cancer. The molecular mechanism of the anticancer effects of PT on colorectal cancer cells has not been reported yet. In this study, we sought to evaluate the anticancer effect of PT on human colorectal cancer HCT116 cells and identify the detailed molecular mechanism. PT inhibited the growth of cells and colony formation in a concentration-dependent manner and induced apoptosis as determined by the annexin V/7-aminoactinomycin D double staining assay. PT-induced apoptosis was accompanied by cell cycle arrest in the G2/M phase and an increase in the generation of reactive oxygen species (ROS). The effects of PT on the induction of ROS and apoptosis were prevented by pretreatment with N-acetyl-L-cysteine (NAC), indicating that an increase in ROS generation mediates the apoptosis of HCT116 cells induced by PT. Furthermore, Western blot analysis showed that PT upregulated the level of phospho (p)-p38 mitogen-activated protein kinase (MAPK). The treatment of SB203580, a p38 inhibitor, strongly prevented the apoptosis induced by PT, suggesting that PT-induced apoptosis involved the p38 MAPK signaling pathway. In addition, PT induced the loss of mitochondrial membrane potential and multi-caspase activation. The results suggested that PT induced cell cycle arrest in the G2/M phase and apoptosis through the p38 MAPK signaling pathway by upregulating ROS in HCT116 cells.
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Affiliation(s)
- Seung-On Lee
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Muan 58554, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Ah-Won Kwak
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Mee-Hyun Lee
- College of Korean Medicine, Dongshin University, Naju 58245, Republic of Korea
| | - Ji-Hye Seo
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Seung-Sik Cho
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Goo Yoon
- Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea
| | - Jung-Il Chae
- Department of Dental Pharmacology, School of Dentistry, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jung-Hyun Shim
- Department of Biomedicine, Health & Life Convergence Sciences, BK21 Four, Biomedical and Healthcare Research Institute, Mokpo National University, Muan 58554, Republic of Korea.,Department of Pharmacy, College of Pharmacy, Mokpo National University, Muan 58554, Republic of Korea.,The China-US (Henan) Hormel Cancer Institute, Zhengzhou, Henan 450008, China
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31
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Lim JS, Kim JH, Woo J, Baek DS, Ihm K, Shin TJ, Sa YJ, Joo SH. Designing highly active nanoporous carbon H2O2 production electrocatalysts through active site identification. Chem 2021. [DOI: 10.1016/j.chempr.2021.08.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Lee D, Kim YM, Kim HW, Choi YK, Park BJ, Joo SH, Kang KS. Schisandrin C Affects Glucose-Stimulated Insulin Secretion in Pancreatic β-Cells and Glucose Uptake in Skeletal Muscle Cells. Molecules 2021; 26:molecules26216509. [PMID: 34770916 PMCID: PMC8587027 DOI: 10.3390/molecules26216509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 01/20/2023] Open
Abstract
The aim of our study was to investigate the effect of three lignans (schisandrol A, schisandrol B, and schisandrin C) on insulin secretion in rat INS-1 pancreatic β-cells and glucose uptake in mouse C2C12 skeletal muscle cells. Schisandrol A and schisandrin C enhanced insulin secretion in response to high glucose levels with no toxic effects on INS-1 cells. The effect of schisandrin C was superior to that of gliclazide (positive control), a drug commonly used to treat type 2 diabetes (T2D). In addition, western blot analysis showed that the expression of associated proteins, including peroxisome proliferator-activated receptor γ (PPARγ), pancreatic and duodenal homeobox 1 (PDX-1), phosphatidylinositol 3-kinase (PI3K), Akt, and insulin receptor substrate-2 (IRS-2), was increased in INS-1 cells after treatment with schisandrin C. In addition, insulin secretion effect of schisandrin C were enhanced by the Bay K 8644 (L-type Ca2+ channel agonist) and glibenclamide (K+ channel blocker), were abolished by the nifedipine (L-type Ca2+ channel blocker) and diazoxide (K+ channel activator). Moreover, schisandrin C enhanced glucose uptake with no toxic effects on C2C12 cells. Western blot analysis showed that the expression of associated proteins, including insulin receptor substrate-1 (IRS-1), AMP-activated protein kinase (AMPK), PI3K, Akt, glucose transporter type 4 (GLUT-4), was increased in C2C12 cells after treatment with schisandrin C. Schisandrin C may improve hyperglycemia by enhancing insulin secretion in pancreatic β-cells and improving glucose uptake into skeletal muscle cells. Our findings may provide evidence that schisandrin C may be beneficial in devising novel anti-T2D strategies.
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Affiliation(s)
- Dahae Lee
- College of Korean Medicine, Gachon University, Seongnam 13120, Korea;
| | - Young-Mi Kim
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (Y.-M.K.); (H.W.K.)
| | - Hyun Woo Kim
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (Y.-M.K.); (H.W.K.)
| | - You-Kyoung Choi
- Department of Korean International Medicine, College of Korean Medicine, Gachon University, Seongnam 13120, Korea;
| | - Bang Ju Park
- Department of Electronic Engineering, Gachon University, Seongnam 13120, Korea;
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Korea
- Correspondence: (S.H.J.); (K.S.K.); Tel.: +82-53-850-3614 (S.H.J.); +82-31-750-5402 (K.S.K.)
| | - Ki Sung Kang
- College of Korean Medicine, Gachon University, Seongnam 13120, Korea;
- Correspondence: (S.H.J.); (K.S.K.); Tel.: +82-53-850-3614 (S.H.J.); +82-31-750-5402 (K.S.K.)
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Raut PK, Lee HS, Joo SH, Chun KS. Thymoquinone induces oxidative stress-mediated apoptosis through downregulation of Jak2/STAT3 signaling pathway in human melanoma cells. Food Chem Toxicol 2021; 157:112604. [PMID: 34627931 DOI: 10.1016/j.fct.2021.112604] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/28/2021] [Accepted: 10/05/2021] [Indexed: 01/04/2023]
Abstract
Melanoma is a highly aggressive and treatment-resistant cancer, and the incidence and mortality rates are increasing worldwide. Thymoquinone (TQ) is the active component of Nigella sativa seed extracts and exerts anticancer effects in various cancer cells. However, the anticancer effects of TQ on melanoma and the underlying molecular mechanisms remain elusive. In this study, TQ treatment induced apoptosis in SK-MEL-28 cells. Interestingly, constitutive phosphorylation of Janus kinase 2 (Jak2) and signal transducer and activator of transcription 3 (STAT3) was markedly decreased following TQ treatment. Furthermore, TQ treatment downregulated STAT3-dependent genes including cyclin D1, D2, and D3 and survivin. Moreover, inhibition of Jak2/STAT3 using AG490, an inhibitor of Jak2 or genetic ablation of STAT3, abrogated the expression of target genes. TQ increased the levels of reactive oxygen species (ROS), whereas pretreatment with N-acetyl cysteine (NAC), a ROS scavenger, prevented the suppressive effect of TQ on Jak2/STAT3 activation and protected SK-MEL-28 cells from TQ-induced apoptosis. TQ administration further attenuated the growth of SK-MEL-28 tumor xenografts. Taken together, TQ induced apoptosis of SK-MEL-28 by hindering the Jak2/STAT3 signaling pathway through ROS generation. Our results support further development of TQ as a potential anticancer therapeutic agent for treating melanoma.
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Affiliation(s)
- Pawan Kumar Raut
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea
| | - Hui Seong Lee
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongbuk, 38430, South Korea
| | - Kyung-Soo Chun
- College of Pharmacy, Keimyung University, Daegu, 42601, South Korea.
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34
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Lim T, Kim JH, Kim J, Baek DS, Shin TJ, Jeong HY, Lee KS, Exner KS, Joo SH. General Efficacy of Atomically Dispersed Pt Catalysts for the Chlorine Evolution Reaction: Potential-Dependent Switching of the Kinetics and Mechanism. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03893] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Taejung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jae Hyung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jinjong Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Du San Baek
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kug-Seung Lee
- Pohang Accelerator Laboratory, 80 Jigok-ro, Pohang 37673, Republic of Korea
| | - Kai S. Exner
- Faculty of Chemistry, Theoretical Chemistry, University of Duisburg-Essen, Universitätsstraße 5, 45141 Essen, Germany
- Cluster of Excellence RESOLV, 44801 Bochum, Germany
- Center for Nanointegration (CENIDE) Duisburg-Essen, 47057 Duisburg, Germany
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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35
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Kim JH, Shin D, Kim J, Lim JS, Paidi VK, Shin TJ, Jeong HY, Lee K, Kim H, Joo SH. Reversible Ligand Exchange in Atomically Dispersed Catalysts for Modulating the Activity and Selectivity of the Oxygen Reduction Reaction. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jae Hyung Kim
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Dongyup Shin
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-Ro Daejeon 34141 Republic of Korea
| | - Jinjong Kim
- Department of Chemistry UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Vinod K. Paidi
- Pohang Accelerator Laboratory 80 Jigok-ro Pohang 37673 Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Kug‐Seung Lee
- Pohang Accelerator Laboratory 80 Jigok-ro Pohang 37673 Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry Korea Advanced Institute of Science and Technology (KAIST) 291 Daehak-Ro Daejeon 34141 Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Department of Chemistry UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
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36
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Speck FD, Kim JH, Bae G, Joo SH, Mayrhofer KJJ, Choi CH, Cherevko S. Single-Atom Catalysts: A Perspective toward Application in Electrochemical Energy Conversion. JACS Au 2021; 1:1086-1100. [PMID: 34467351 PMCID: PMC8397360 DOI: 10.1021/jacsau.1c00121] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Indexed: 05/29/2023]
Abstract
Single-atom catalysts (SACs) hold great promise for maximized metal utilization, exceptional tunability of the catalytic site, and selectivity. Moreover, they can substantially contribute to lower the cost and abundancy challenges associated with raw materials. Significant breakthroughs have been achieved over the past decade, for instance, in terms of synthesis methods for SACs, their catalytic activity, and the mechanistic understanding of their functionality. Still, great challenges lie ahead in order to render them viable for application in important fields such as electrochemical energy conversion of renewable electrical energy. We have identified three particular development fields for advanced SACs that we consider crucial, namely, the scale-up of the synthesis, the understanding of their performance in real devices such as fuel cells and electrolyzers, and the understanding and mitigation of their degradation. In this Perspective, we review recent activities of the community and provide our outlook with respect to the aspects required to bring SACs toward application.
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Affiliation(s)
- Florian D. Speck
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Jae Hyung Kim
- Clean
Energy Research Center, Korea Institute
of Science and Technology (KIST), 5 Hwarangro 14-gil, Seoul 02792, Republic of Korea
| | - Geunsu Bae
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Sang Hoon Joo
- Department
of Chemistry, Ulsan National Institute of
Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Karl J. J. Mayrhofer
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstr. 3, 91058 Erlangen, Germany
- Department
of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Egerlandstr. 3, Erlangen 91058, Germany
| | - Chang Hyuck Choi
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Serhiy Cherevko
- Helmholtz-Institute
Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstr. 3, 91058 Erlangen, Germany
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37
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Kim JH, Shin D, Kim J, Lim JS, Paidi VK, Shin TJ, Jeong HY, Lee KS, Kim H, Joo SH. Reversible Ligand Exchange in Atomically Dispersed Catalysts for Modulating the Activity and Selectivity of the Oxygen Reduction Reaction. Angew Chem Int Ed Engl 2021; 60:20528-20534. [PMID: 34263519 DOI: 10.1002/anie.202108439] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/10/2022]
Abstract
Rational control of the coordination environment of atomically dispersed catalysts is pivotal to achieve desirable catalytic reactivity. We report the reversible control of coordination structure in atomically dispersed electrocatalysts via ligand exchange reactions to reversibly modulate their reactivity for oxygen reduction reaction (ORR). The CO-ligated atomically dispersed Rh catalyst exhibited ca. 30-fold higher ORR activity than the NHx -ligated catalyst, whereas the latter showed three times higher H2 O2 selectivity than the former. Post-treatments of the catalysts with CO or NH3 allowed the reversible exchange of CO and NHx ligands, which reversibly tuned oxidation state of metal centers and their ORR activity and selectivity. DFT calculations revealed that more reduced oxidation state of CO-ligated Rh site could further stabilize the *OOH intermediate, facilitating the two- and four-electron pathway ORR. The reversible ligand exchange reactions were generalized to Ir- and Pt-based catalysts.
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Affiliation(s)
- Jae Hyung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Dongyup Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-Ro, Daejeon, 34141, Republic of Korea
| | - Jinjong Kim
- Department of Chemistry, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Vinod K Paidi
- Pohang Accelerator Laboratory, 80 Jigok-ro, Pohang, 37673, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Kug-Seung Lee
- Pohang Accelerator Laboratory, 80 Jigok-ro, Pohang, 37673, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-Ro, Daejeon, 34141, Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea.,Department of Chemistry, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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38
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Affiliation(s)
- Ho Young Kim
- Center for Hydrogen and Fuel Cell Research Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
| | - Jin Young Kim
- Center for Hydrogen and Fuel Cell Research Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
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39
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Baek DS, Lee KA, Park J, Kim JH, Lee J, Lim JS, Lee SY, Shin TJ, Jeong HY, Son JS, Kang SJ, Kim JY, Joo SH. Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy Storage. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Du San Baek
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Kyung Ah Lee
- Center for Hydrogen Fuel Cell Research Korea Institute of Science and Technology (KIST) 5 Hwarang-ro 14-gil Seoul 02792 Republic of Korea
| | - Jaehyun Park
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jae Hyung Kim
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jungsoo Lee
- Department of Materials Science and Engineering UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - So Young Lee
- Center for Hydrogen Fuel Cell Research Korea Institute of Science and Technology (KIST) 5 Hwarang-ro 14-gil Seoul 02792 Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jae Sung Son
- Department of Materials Science and Engineering UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Seok Ju Kang
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Jin Young Kim
- Center for Hydrogen Fuel Cell Research Korea Institute of Science and Technology (KIST) 5 Hwarang-ro 14-gil Seoul 02792 Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
- Department of Chemistry UNIST 50 UNIST-gil Ulsan 44919 Republic of Korea
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40
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Baek DS, Lee KA, Park J, Kim JH, Lee J, Lim JS, Lee SY, Shin TJ, Jeong HY, Son JS, Kang SJ, Kim JY, Joo SH. Ordered Mesoporous Carbons with Graphitic Tubular Frameworks by Dual Templating for Efficient Electrocatalysis and Energy Storage. Angew Chem Int Ed Engl 2021; 60:1441-1449. [PMID: 33043551 DOI: 10.1002/anie.202012936] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Indexed: 01/23/2023]
Abstract
Ordered mesoporous carbons (OMCs) have attracted considerable interest owing to their broad utility. OMCs reported to date comprise amorphous rod-like or tubular or graphitic rod-like frameworks, which exhibit tradeoffs between conductivity and surface area. Here we report ordered mesoporous carbons constructed with graphitic tubular frameworks (OMGCs) with tunable pore sizes and mesostructures via dual templating, using mesoporous silica and molybdenum carbide as exo- and endo-templates, respectively. OMGCs simultaneously realize high electrical conductivity and large surface area and pore volume. Benefitting from these features, Ru nanoparticles (NPs) supported on OMGC exhibit superior catalytic activity for alkaline hydrogen evolution reaction and single-cell performance for anion exchange membrane water electrolysis compared to Ru NPs on other OMCs and commercial catalysts. Further, the OMGC-based full-carbon symmetric cell demonstrates excellent performances for Li-ion capacitors.
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Affiliation(s)
- Du San Baek
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Kyung Ah Lee
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seoul, 02792, Republic of Korea
| | - Jaehyun Park
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jae Hyung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jungsoo Lee
- Department of Materials Science and Engineering, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - So Young Lee
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seoul, 02792, Republic of Korea
| | - Tae Joo Shin
- UNIST Central Research Facilities, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jae Sung Son
- Department of Materials Science and Engineering, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Seok Ju Kang
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jin Young Kim
- Center for Hydrogen Fuel Cell Research, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seoul, 02792, Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea.,Department of Chemistry, UNIST, 50 UNIST-gil, Ulsan, 44919, Republic of Korea
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41
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Woo J, Lim JS, Kim JH, Joo SH. Heteroatom-doped carbon-based oxygen reduction electrocatalysts with tailored four-electron and two-electron selectivity. Chem Commun (Camb) 2021; 57:7350-7361. [PMID: 34231572 DOI: 10.1039/d1cc02667d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxygen reduction reaction (ORR) plays a pivotal role in electrochemical energy conversion and commodity chemical production. Oxygen reduction involving a complete four-electron (4e-) transfer is important for the efficient operation of polymer electrolyte fuel cells, whereas the ORR with a partial 2e- transfer can serve as a versatile method for producing industrially important hydrogen peroxide (H2O2). For both the 4e- and 2e- pathway ORR, platinum-group metals (PGMs) have been materials of prevalent choice owing to their high intrinsic activity, but they are costly and scarce. Hence, the development of highly active and selective non-precious metal catalysts is of crucial importance for advancing electrocatalysis of the ORR. Heteroatom-doped carbon-based electrocatalysts have emerged as promising alternatives to PGM catalysts owing to their appreciable activity, tunable selectivity, and facile preparation. This review provides an overview of the design of heteroatom-doped carbon ORR catalysts with tailored 4e- or 2e- selectivities. We highlight catalyst design strategies that promote 4e- or 2e- ORR activity. We also summarise the major active sites and activity descriptors of the respective ORR pathways and describe the catalyst properties controlling the ORR mechanisms. We conclude the review with a summary and suggestions for future research.
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Affiliation(s)
- Jinwoo Woo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - June Sung Lim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea.
| | - Jae Hyung Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. and Department of Chemistry, College of Natural Sciences, Seoul National University (SNU), 1 Gwanak-ro, Seoul 08826, Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea. and Department of Chemistry, UNIST, 50 UNIST-gil, Ulsan 44919, Republic of Korea
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42
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Kim HY, Kwon T, Ha Y, Jun M, Baik H, Jeong HY, Kim H, Lee K, Joo SH. Intermetallic PtCu Nanoframes as Efficient Oxygen Reduction Electrocatalysts. Nano Lett 2020; 20:7413-7421. [PMID: 32924501 DOI: 10.1021/acs.nanolett.0c02812] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoframe alloy structures represent a class of high-performance catalysts for the oxygen reduction reaction (ORR), owing to their high active surface area, efficient molecular accessibility, and nanoconfinement effect. However, structural and chemical instabilities of nanoframes remain an important challenge. Here, we report the synthesis of PtCu nanoframes constructed with an atomically ordered intermetallic structure (O-PtCuNF/C) showing high ORR activity, durability, and chemical stability. We rationally designed the O-PtCuNF/C catalyst by combining theoretical composition predictions with a silica-coating-mediated synthesis. The O-PtCuNF/C combines intensified strain and ligand effects from the intermetallic PtCu L11 structure and advantages of the nanoframes, resulting in superior ORR activity to disordered alloy PtCu nanoframes (D-PtCuNF/C) and commercial Pt/C catalysts. Importantly, the O-PtCuNF/C showed the highest ORR mass activity among PtCu-based catalysts. Furthermore, the O-PtCuNF/C exhibited higher ORR durability and far less etching of constituent atoms than D-PtCuNF/C and Pt/C, attesting to the chemically stable nature of the intermetallic structure.
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Affiliation(s)
- Ho Young Kim
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Taehyun Kwon
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Yoonhoo Ha
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Daejeon 34141, Republic of Korea
| | - Minki Jun
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Hionsuck Baik
- Seoul Center, Korea Basic Science Institute, Seoul 02841, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-Ro, Daejeon 34141, Republic of Korea
| | - Kwangyeol Lee
- Department of Chemistry and Research Institute for Natural Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Sang Hoon Joo
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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43
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Sa YJ, Jung H, Shin D, Jeong HY, Ringe S, Kim H, Hwang YJ, Joo SH. Thermal Transformation of Molecular Ni2+–N4 Sites for Enhanced CO2 Electroreduction Activity. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02325] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Young Jin Sa
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
- Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Department of Chemistry, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Hyejin Jung
- Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Dongyup Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Stefan Ringe
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Hyungjun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yun Jeong Hwang
- Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
- Department of Chemistry and Biomolecular Engineering, Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul 03722, Republic of Korea
| | - Sang Hoon Joo
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
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Jung SM, Yun SW, Kim JH, You SH, Park J, Lee S, Chang SH, Chae SC, Joo SH, Jung Y, Lee J, Son J, Snyder J, Stamenkovic V, Markovic NM, Kim YT. Selective electrocatalysis imparted by metal–insulator transition for durability enhancement of automotive fuel cells. Nat Catal 2020. [DOI: 10.1038/s41929-020-0475-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Lee J, Woo J, Nguyen-Huy C, Lee MS, Joo SH, An K. Highly dispersed Pd catalysts supported on various carbons for furfural hydrogenation. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.06.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Hira SA, Nallal M, Rajendran K, Song S, Park S, Lee JM, Joo SH, Park KH. Ultrasensitive detection of hydrogen peroxide and dopamine using copolymer-grafted metal-organic framework based electrochemical sensor. Anal Chim Acta 2020; 1118:26-35. [PMID: 32418601 DOI: 10.1016/j.aca.2020.04.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/13/2020] [Accepted: 04/18/2020] [Indexed: 01/05/2023]
Abstract
We reported the synthesis of a copolymer- and metal-organic framework-based electrochemical sensor, UiO-66-NH2@P(ANI-co-ANA) using the polymerization method for the highly sensitive and selective detection of hydrogen peroxide (H2O2) and dopamine (DA). The as-synthesized material was characterized via Fourier transform infrared spectroscopy, X-ray diffraction analysis, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and thermogravimetric analysis. The electrochemical characteristics of the proposed sensor were evaluated via impedance spectroscopy and cyclic voltammetry (CV). The electrochemical oxidation of DA and the reduction of H2O2 were determined via CV, square-wave voltammetry, and chronoamperometric techniques. The fabricated sensor exhibited a wide linear range of 25-500 μM, with a sensitivity of 1396.1 μAμM-1cm-2 and a limit of detection of 0.6 μM, for the electrochemical reduction of H2O2. Additionally, it exhibited a wide linear range of 10-110 μM, with a sensitivity of 1110.2 μAμM-1cm-2 and a limit of detection of 0.3 μM, for the electrochemical detection of DA. The practical utility of the fabricated sensor was evaluated via the detection of H2O2 in milk samples and DA in human urine samples.
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Affiliation(s)
- Shamim Ahmed Hira
- Department of Chemistry, Pusan National University, Busan, 46241, South Korea
| | - Muthuchamy Nallal
- Department of Chemistry, Pusan National University, Busan, 46241, South Korea
| | - Karkuzhali Rajendran
- Department of Industrial Chemistry, Alagappa University, Karaikudi, 630003, Tamil Nadu, India
| | - Sehwan Song
- Department of Physics, Pusan National University, Busan, 46241, South Korea
| | - Sungkyun Park
- Department of Physics, Pusan National University, Busan, 46241, South Korea
| | - Jae-Myung Lee
- Department of Naval Architecture, Pusan National University, Busan, 46241, South Korea
| | - Sang Hoon Joo
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, South Korea
| | - Kang Hyun Park
- Department of Chemistry, Pusan National University, Busan, 46241, South Korea.
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47
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Kim JH, Shin D, Lee J, Baek DS, Shin TJ, Kim YT, Jeong HY, Kwak JH, Kim H, Joo SH. A General Strategy to Atomically Dispersed Precious Metal Catalysts for Unravelling Their Catalytic Trends for Oxygen Reduction Reaction. ACS Nano 2020; 14:1990-2001. [PMID: 31999424 DOI: 10.1021/acsnano.9b08494] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Atomically dispersed precious metal catalysts have emerged as a frontier in catalysis. However, a robust, generic synthetic strategy toward atomically dispersed catalysts is still lacking, which has limited systematic studies revealing their general catalytic trends distinct from those of conventional nanoparticle (NP)-based catalysts. Herein, we report a general synthetic strategy toward atomically dispersed precious metal catalysts, which consists of "trapping" precious metal precursors on a heteroatom-doped carbonaceous layer coated on a carbon support and "immobilizing" them with a SiO2 layer during thermal activation. Through the "trapping-and-immobilizing" method, five atomically dispersed precious metal catalysts (Os, Ru, Rh, Ir, and Pt) could be obtained and served as model catalysts for unravelling catalytic trends for the oxygen reduction reaction (ORR). Owing to their isolated geometry, the atomically dispersed precious metal catalysts generally showed higher selectivity for H2O2 production than their NP counterparts for the ORR. Among the atomically dispersed catalysts, the H2O2 selectivity was changed by the types of metals, with atomically dispersed Pt catalyst showing the highest selectivity. A combination of experimental results and density functional theory calculations revealed that the selectivity trend of atomically dispersed catalysts could be correlated to the binding energy difference between *OOH and *O species. In terms of 2 e- ORR activity, the atomically dispersed Rh catalyst showed the best activity. Our general approach to atomically dispersed precious metal catalysts may help in understanding their unique catalytic behaviors for the ORR.
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Affiliation(s)
| | - Dongyup Shin
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-Ro , Daejeon 34141 , Republic of Korea
| | | | | | | | - Yong-Tae Kim
- Department of Materials Science and Engineering , Pohang University of Science and Technology (POSTECH) , 77 Cheongam-Ro , Pohang , Gyeongbuk 37673 , Republic of Korea
| | | | | | - Hyungjun Kim
- Department of Chemistry , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-Ro , Daejeon 34141 , Republic of Korea
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Lim T, Jung GY, Kim JH, Park SO, Park J, Kim YT, Kang SJ, Jeong HY, Kwak SK, Joo SH. Atomically dispersed Pt-N 4 sites as efficient and selective electrocatalysts for the chlorine evolution reaction. Nat Commun 2020; 11:412. [PMID: 31964881 PMCID: PMC6972710 DOI: 10.1038/s41467-019-14272-1] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 12/23/2019] [Indexed: 11/23/2022] Open
Abstract
Chlorine evolution reaction (CER) is a critical anode reaction in chlor-alkali electrolysis. Although precious metal-based mixed metal oxides (MMOs) have been widely used as CER catalysts, they suffer from the concomitant generation of oxygen during the CER. Herein, we demonstrate that atomically dispersed Pt−N4 sites doped on a carbon nanotube (Pt1/CNT) can catalyse the CER with excellent activity and selectivity. The Pt1/CNT catalyst shows superior CER activity to a Pt nanoparticle-based catalyst and a commercial Ru/Ir-based MMO catalyst. Notably, Pt1/CNT exhibits near 100% CER selectivity even in acidic media, with low Cl− concentrations (0.1 M), as well as in neutral media, whereas the MMO catalyst shows substantially lower CER selectivity. In situ electrochemical X-ray absorption spectroscopy reveals the direct adsorption of Cl− on Pt−N4 sites during the CER. Density functional theory calculations suggest the PtN4C12 site as the most plausible active site structure for the CER. Chlorine evolution reaction (CER) is a key electrochemical reaction for chemical, pulp, and paper industries, and water treatments. Here, the authors report that an atomically dispersed Pt−N4 site can catalyse CER with high activity and selectivity under a wide range of Cl– concentrations and pH.
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Affiliation(s)
- Taejung Lim
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Gwan Yeong Jung
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jae Hyung Kim
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Sung O Park
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Jaehyun Park
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Yong-Tae Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-Ro, Pohang, Gyeongbuk, 37673, Republic of Korea
| | - Seok Ju Kang
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Sang Kyu Kwak
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea.
| | - Sang Hoon Joo
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea.
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Choi JS, Joo SH. Recent Trends in Cyclic Peptides as Therapeutic Agents and Biochemical Tools. Biomol Ther (Seoul) 2020; 28:18-24. [PMID: 31597413 PMCID: PMC6939695 DOI: 10.4062/biomolther.2019.082] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/09/2019] [Accepted: 08/12/2019] [Indexed: 12/26/2022] Open
Abstract
Notable progress has been made in the therapeutic and research applications of cyclic peptides since our previous review. New drugs based on cyclic peptides are entering the market, such as plecanatide, a cyclic peptide approved by the United States Food and Drug Administration in 2017 for the treatment of chronic idiopathic constipation. In this review, we discuss recent developments in stapled peptides, prepared with the use of chemical linkers, and bicyclic/tricyclic peptides with more than two rings. These have widespread applications for clinical and research purposes: imaging, diagnostics, improvement of oral absorption, enzyme inhibition, development of receptor agonist/antagonist, and the modulation of protein-protein interaction or protein-RNA interaction. Many cyclic peptides are expected to emerge as therapeutics and biochemical tools.
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Affiliation(s)
- Joon-Seok Choi
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Sang Hoon Joo
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
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Seo B, Jung GY, Lee SJ, Baek DS, Sa YJ, Ban HW, Son JS, Park K, Kwak SK, Joo SH. Monomeric MoS42–-Derived Polymeric Chains with Active Molecular Units for Efficient Hydrogen Evolution Reaction. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02700] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bora Seo
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
- Clean Energy Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seoul 02792, Republic of Korea
| | - Gwan Yeong Jung
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Se Jeong Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Du San Baek
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Young Jin Sa
- Department of Chemistry, Kwangwoon University, 20 Gwangwoon-ro, Seoul 01897, Republic of Korea
| | - Hyeong Woo Ban
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Jae Sung Son
- School of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Kiyoung Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Sang Kyu Kwak
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
| | - Sang Hoon Joo
- Department of Energy Engineering and School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan 44919, Republic of Korea
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