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You S, Deng Q, Wang Z, Chu Y, Xu Y, Lu J, Yang C. Achieving Highly Stable Zn Metal Anodes at Low Temperature via Regulating Electrolyte Solvation Structure. Adv Mater 2024:e2402245. [PMID: 38615264 DOI: 10.1002/adma.202402245] [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] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Zinc metal is an attractive anode material for rechargeable aqueous Zn-ion batteries (ZIBs). However, the dendrite growth, water-induced parasitic reactions, and freezing problem of aqueous electrolyte at low temperatures are the major roadblocks that hinder the widely commercialization of ZIBs. Herein, tetrahydrofuran (THF) is proposed as the electrolyte additive to improve the reversibility and stability of Zn anode. Theoretical calculation and experimental results reveal that the introduction of THF into the aqueous electrolyte can optimize the solvation structure which can effectively alleviate the H2O-induced side reactions and protect the Zn anode from corrosion. Moreover, THF can act as a hydrogen bond acceptor to interact with H2O, which can greatly reduce the activity of free H2O in electrolytes and improve the low-temperature electrochemical performance of Zn anode. As a result, the Zn anodes demonstrate high cyclic stability for 2800 h at 27 °C and over 4000 h at -10 °C at 1.0 mA cm-2 /1.0 mAh cm-2. The full cell exhibits excellent cyclic stability and rate capability at 27 and -10 °C. This work is expected to provide a new approach to regulate the aqueous electrolyte and Zn anode interface chemistry for highly stable and reversible Zn anodes.
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Affiliation(s)
- Shunzhang You
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Qiang Deng
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Ziming Wang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Youqi Chu
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yunkai Xu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang Province, 310027, P. R. China
| | - Jun Lu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang Province, 310027, P. R. China
- Quzhou Institute of Power Battery and Grid Energy Storage, Quzhou, 324000, China
| | - Chenghao Yang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
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2
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Weeks JA, Burrow JN, Diao J, Paul-Orecchio AG, Srinivasan HS, Vaidyula RR, Dolocan A, Henkelman G, Mullins CB. In Situ Engineering of Inorganic-Rich Solid Electrolyte Interphases via Anion Choice Enables Stable, Lithium Anodes. Adv Mater 2024; 36:e2305645. [PMID: 37670536 DOI: 10.1002/adma.202305645] [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] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/11/2023] [Indexed: 09/07/2023]
Abstract
The discovery of liquid battery electrolytes that facilitate the formation of stable solid electrolyte interphases (SEIs) to mitigate dendrite formation is imperative to enable lithium anodes in next-generation energy-dense batteries. Compared to traditional electrolyte solvents, tetrahydrofuran (THF)-based electrolyte systems have demonstrated great success in enabling high-stability lithium anodes by encouraging the decomposition of anions (instead of organic solvent) and thus generating inorganic-rich SEIs. Herein, by employing a variety of different lithium salts (i.e., LiPF6, LiTFSI, LiFSI, and LiDFOB), it is demonstrated that electrolyte anions modulate the inorganic composition and resulting properties of the SEI. Through novel analytical time-of-flight secondary-ion mass spectrometry methods, such as hierarchical clustering of depth profiles and compositional analysis using integrated yields, the chemical composition and morphology of the SEIs generated from each electrolyte system are examined. Notably, the LiDFOB electrolyte provides an exceptionally stable system to enable lithium anodes, delivering >1500 cycles at a current density of 0.5 mAh g-1 and a capacity of 0.5 mAh g-1 in symmetrical cells. Furthermore, Li//LFP cells using this electrolyte demonstrate high-rate, reversible lithium storage, supplying 139 mAh g(LFP) -1 at C/2 (≈0.991 mAh cm-2 , @ 0.61 mA cm-2 ) with 87.5% capacity retention over 300 cycles (average Coulombic efficiency >99.86%).
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Affiliation(s)
- Jason A Weeks
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712-1224, USA
| | - James N Burrow
- John J. McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712-1589, USA
| | - Jiefeng Diao
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712-1224, USA
- Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX, 78712, USA
| | | | - Hrishikesh S Srinivasan
- John J. McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712-1589, USA
| | - Rinish Reddy Vaidyula
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712-1224, USA
| | - Andrei Dolocan
- Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712-1591, USA
| | - Graeme Henkelman
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712-1224, USA
- Oden Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX, 78712, USA
| | - C Buddie Mullins
- Department of Chemistry, The University of Texas at Austin, Austin, TX, 78712-1224, USA
- John J. McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX, 78712-1589, USA
- Texas Materials Institute, The University of Texas at Austin, Austin, TX, 78712-1591, USA
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Katsuyama Y, Li Y, Uemura S, Yang Z, Anderson M, Wang C, Lin CW, Li Y, Kaner RB. Reprecipitation: A Rapid Synthesis of Micro-Sized Silicon-Graphene Composites for Long-lasting Lithium-Ion Batteries. ACS Appl Mater Interfaces 2024. [PMID: 38427784 DOI: 10.1021/acsami.3c18846] [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: 03/03/2024]
Abstract
Silicon microparticles (SiMPs) have gained significant attention as a lithium-ion battery anode material due to their 10 times higher theoretical capacity compared to conventional graphite anodes as well as their much lower production cost than silicon nanoparticles (SiNPs). However, SiMPs have suffered from poorer cycle life relative to SiNPs because their larger size makes them more susceptible to volume changes during charging and discharging. Creating a wrapping structure in which SiMPs are enveloped by carbon layers has proven to be an effective strategy to significantly improve the cycling performance of SiMPs. However, the synthesis processes are complex and time-/energy-consuming and therefore not scalable. In this study, a wrapping structure is created by using a simple, rapid, and scalable "modified reprecipitation method". Graphene oxide (GO) and SiMP dispersion in tetrahydrofuran is injected into n-hexane, in which GO and SiMP by themselves cannot disperse. GO and SiMP therefore aggregate and precipitate immediately after injection to form a wrapping structure. The resulting SiMP/GO film is laser scribed to reduce GO to a laser-scribed graphene (LSG). Simultaneously, SiOx and SiC protection layers form on the SiMPs through the laser process, which alleviates severe volume change. Owing to these desirable characteristics, the modified reprecipitation method successfully doubles the cycle life of SiMP/graphene composites compared to the simple physically mixing method (50.2% vs. 24.0% retention at the 100th cycle). The modified reprecipitation method opens a new synthetic strategy for SiMP/carbon composites.
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Affiliation(s)
- Yuto Katsuyama
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Yang Li
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Sophia Uemura
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Zhiyin Yang
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Mackenzie Anderson
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Chenxiang Wang
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Cheng-Wei Lin
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
| | - Yuzhang Li
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute (CNSI), University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
| | - Richard B Kaner
- Department of Chemistry & Biochemistry, University of California Los Angeles, Los Angeles, California 90095-1569, United States
- California NanoSystems Institute (CNSI), University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
- Department of Materials Science and Engineering, University of California, Los Angeles (UCLA), Los Angeles, California 90095, United States
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Ciss I, Seck M, Figadère B, Ferrié L. Advances Toward Amphidinolides C, F and U: Isolations, Synthetic Studies and Total Syntheses. Chemistry 2024:e202400471. [PMID: 38407454 DOI: 10.1002/chem.202400471] [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: 02/01/2024] [Revised: 02/23/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Amphidinolides C, F, and U, including C2-C4 analogs, are highly cytotoxic marine macrolides, mainly isolated from dinoflagellates of the genus Amphidinium. All these polyketides share a 75 % or more similar structure, highlighted by a macrolactone ring, at least one trans-2,5-substituted-THF motif and a characteristic polyenic side chain. From their isolation and absolute configurational assignment, the total synthesis of these marine macrolides represented an intense challenge to the organic synthesis community over the last 15 years, with around 14 research groups engaged in this inspiring task. In the first part of this review, we present the different approaches to the isolation and characterization of these natural products, including the most recent analogs, which may cast doubt on the biogenetic origin of these compounds. The various synthetic approaches to the total synthesis of C, F, and U amphidinolides are presented in a second part, focusing on key reactions and/or innovative strategies. The review concludes in a third section summarizing the successful approaches leading to the total synthesis of one of the members of this amphidinolide subfamily.
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Affiliation(s)
- Ismaila Ciss
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Matar Seck
- Laboratoire de Chimie Organique et Chimie Thérapeutique, Faculté de Médecine, de Pharmacie et d'Odontologie, Université Cheikh Anta Diop de Dakar -, BP 5005, Dakar-Fann, Sénégal
| | - Bruno Figadère
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
| | - Laurent Ferrié
- BioCIS, Faculté de Pharmacie, Université Paris-Saclay, CNRS, 91400, Orsay, France
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De Mori A, Heyraud A, Tallia F, Blunn G, Jones JR, Roncada T, Cobb J, Al-Jabri T. Ovine Mesenchymal Stem Cell Chondrogenesis on a Novel 3D-Printed Hybrid Scaffold In Vitro. Bioengineering (Basel) 2024; 11:112. [PMID: 38391598 PMCID: PMC10886199 DOI: 10.3390/bioengineering11020112] [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: 11/21/2023] [Revised: 01/08/2024] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
This study evaluated the use of silica/poly(tetrahydrofuran)/poly(ε-caprolactone) (SiO2/PTHF/PCL-diCOOH) 3D-printed scaffolds, with channel sizes of either 200 (SC-200) or 500 (SC-500) µm, as biomaterials to support the chondrogenesis of sheep bone marrow stem cells (oBMSC), under in vitro conditions. The objective was to validate the potential use of SiO2/PTHF/PCL-diCOOH for prospective in vivo ovine studies. The behaviour of oBMSC, with and without the use of exogenous growth factors, on SiO2/PTHF/PCL-diCOOH scaffolds was investigated by analysing cell attachment, viability, proliferation, morphology, expression of chondrogenic genes (RT-qPCR), deposition of aggrecan, collagen II, and collagen I (immunohistochemistry), and quantification of sulphated glycosaminoglycans (GAGs). The results showed that all the scaffolds supported cell attachment and proliferation with upregulation of chondrogenic markers and the deposition of a cartilage extracellular matrix (collagen II and aggrecan). Notably, SC-200 showed superior performance in terms of cartilage gene expression. These findings demonstrated that SiO2/PTHF/PCL-diCOOH with 200 µm pore size are optimal for promoting chondrogenic differentiation of oBMSC, even without the use of growth factors.
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Affiliation(s)
- Arianna De Mori
- School of Pharmacy and Biomedical Science, University of Portsmouth, St Micheal's Building, White Swan Road, Portsmouth PO1 2DT, UK
| | - Agathe Heyraud
- Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Francesca Tallia
- Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Gordon Blunn
- School of Pharmacy and Biomedical Science, University of Portsmouth, St Micheal's Building, White Swan Road, Portsmouth PO1 2DT, UK
| | - Julian R Jones
- Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK
| | - Tosca Roncada
- Trinity Center for Biomedical Engineering, Trinity Biomedical Science Institute, Trinity College Dublin, 152-160 Pearse Street, DO2 R590 Dublin, Ireland
| | - Justin Cobb
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
| | - Talal Al-Jabri
- Department of Surgery and Cancer, Imperial College London, London SW7 2AZ, UK
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Young VG, Brennessel WW, Ellis JE. Crystal structure and synthesis of the bis(anthracene)dicuprate dianion as the dipotassium salt, [K( tetrahydrofuran) 2] 2[{Cu(9,10-η 2-anthracene)} 2], the first anionic arene complex of copper. Acta Crystallogr C Struct Chem 2023; 79:456-463. [PMID: 37787071 PMCID: PMC10625718 DOI: 10.1107/s2053229623008367] [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: 06/09/2023] [Accepted: 09/22/2023] [Indexed: 10/04/2023] Open
Abstract
Reactions of (tricyclohexylphosphane)copper(I) chloride with two equivalents of potassium anthracene (KAn) in tetrahydrofuran (THF) at 200 K provides air-sensitive but thermally stable (at 293 K) solutions from which yellow crystalline blocks of bis[bis(tetrahydrofuran-κO)potassium] bis(μ-anthracene-κ2C9:C10)dicopper, [K(THF)2]2[{Cu(9,10-η2-C14H10)}2] or [K(C4H8O)2]2[Cu2(C14H10)2], 1, were isolated in about 50% yield. Single-crystal X-ray crystallographic analysis of 1 confirmed the presence of the first known (arene)cuprate. Also, unlike all previously known homoleptic (anthracene)metallates of d-block elements, which contain metals coordinated only to terminal rings, the organocuprate unit in 1 contains copper bound to the 9,10-carbons of the central ring of anthracene. No other d- or f-block metal is known to afford an anthracene or other aromatic hydrocarbon complex having the architecture of organodicuprate 1.
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Affiliation(s)
- Victor G. Young
- Department of Chemistry, 207 Pleasant Street SE, University of Minnesota, Minneapolis, MN 55455, USA
| | - William W. Brennessel
- Department of Chemistry, 120 Trustee Road, University of Rochester, Rochester, NY 14627, USA
| | - John E. Ellis
- Department of Chemistry, 207 Pleasant Street SE, University of Minnesota, Minneapolis, MN 55455, USA
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7
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Abduh NAY, Al-Kahtani AA, Amer MS, Algarni TS, Al-Odayni AB. Fabricated Gamma-Alumina-Supported Zinc Ferrite Catalyst for Solvent-Free Aerobic Oxidation of Cyclic Ethers to Lactones. Molecules 2023; 28:7192. [PMID: 37894671 PMCID: PMC10609177 DOI: 10.3390/molecules28207192] [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: 09/24/2023] [Revised: 10/15/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this work was to fabricate a new heterogeneous catalyst as zinc ferrite (ZF) supported on gamma-alumina (γ-Al2O3) for the conversion of cyclic ethers to the corresponding, more valuable lactones, using a solvent-free method and O2 as an oxidant. Hence, the ZF@γ-Al2O3 catalyst was prepared using a deposition-coprecipitation method, then characterized using TEM, SEM, EDS, TGA, FTIR, XRD, ICP, XPS, and BET surface area, and further applied for aerobic oxidation of cyclic ethers. The structural analysis indicated spherical, uniform ZF particles of 24 nm dispersed on the alumina support. Importantly, the incorporation of ZF into the support influenced its texture, i.e., the surface area and pore size were reduced while the pore diameter was increased. The product identification indicated lactone compound as the major product for saturated cyclic ether oxidation. For THF as a model reaction, it was found that the supported catalyst was 3.2 times more potent towards the oxidation of cyclic ethers than the unsupported one. Furthermore, the low reactivity of the six-membered ethers can be tackled by optimizing the oxidant pressure and the reaction time. In the case of unsaturated ethers, deep oxidation and polymerization reactions were competitive oxidations. Furthermore, it was found that the supported catalyst maintained good stability and catalytic activity, even after four cycles.
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Affiliation(s)
- Naaser A. Y. Abduh
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Abdullah A. Al-Kahtani
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Mabrook S. Amer
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Tahani Saad Algarni
- Department of Chemistry, King Saud University, Riyadh 11451, Saudi Arabia; (A.A.A.-K.); (M.S.A.)
| | - Abdel-Basit Al-Odayni
- Restorative Dental Sciences Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
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8
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Nuansri S, Rukachaisirikul V, Muanprasat C, Phongpaichit S, Preedanon S, Sakayaroj J. Furanone, morpholinone and tetrahydrofuran derivatives from the marine-derived fungus Talaromyces sp. PSU-MF07. Nat Prod Res 2023; 37:3434-3442. [PMID: 35609143 DOI: 10.1080/14786419.2022.2079124] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 03/13/2022] [Revised: 05/03/2022] [Accepted: 05/13/2022] [Indexed: 10/18/2022]
Abstract
Three new compounds including one furanone, one morpholinone and one tetrahydrofuran together with three known compounds were isolated from the broth extract of the marine-derived fungus Talaromyces sp. PSU-MF07. The structures of the isolated compounds were determined on the basis of spectroscopic methods. The relative configuration was assigned using NOEDIFF data whereas the absolute configurations were established by Mosher's method, specific rotations and electronic circular dichroism (ECD) data. Some isolated compounds were tested for antimicrobial activity. Only known penioxalicin exhibited weak antibacterial activity against methicillin-resistant Staphylococcus aureus SK1 with an MIC value of 200 µg/mL.
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Affiliation(s)
- Sucheewin Nuansri
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Vatcharin Rukachaisirikul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Chatchai Muanprasat
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakarn, Thailand
| | - Souwalak Phongpaichit
- Division of Biological Science, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Sita Preedanon
- National Biobank of Thailand (NBT), National Science and Technology for Development Agency (NSTDA), Pathum Thani, Thailand
| | - Jariya Sakayaroj
- School of Science, Walailak University, Nakhonsithammarat, Thailand
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Lai P, Deng X, Zhang Y, Li J, Hua H, Huang B, Zhang P, Zhao J. Bifunctional Localized High-Concentration Electrolyte for the Fast Kinetics of Lithium Batteries at Low Temperatures. ACS Appl Mater Interfaces 2023. [PMID: 37337885 DOI: 10.1021/acsami.3c04747] [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] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Traditional lithium batteries cannot work well at low temperatures due to the sluggish desolvation process, which limits their applications in low-temperature fields. Among various previously reported approaches, solvation regulation of electrolytes is of great importance to overcome this obstacle. In this work, a tetrahydrofuran (THF)-based localized high-concentration electrolyte is reported, which possesses the advantages of a unique solvation structure and improved mobility, enabling a Li/lithium manganate (LMO) battery to cycle stably at room temperature (retains 85.9% after 300 cycles) and to work at a high rate (retains 69.0% at a 10C rate). Apart from that, this electrolyte demonstrates superior low-temperature performance, delivering over 70% capacity at -70 °C and maintaining 72.5 mAh g-1 (≈77.1%) capacity for 200 cycles at a 1C rate at -40 °C. Also, even when the rate increases to 5C, the battery could still operate well at -40 °C. This work demonstrates that solvation regulation has a significant impact on the kinetics of cells at low temperatures and provides a design method for future electrolyte design.
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Affiliation(s)
- Pengbin Lai
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Xiaodie Deng
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Yaqi Zhang
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Jialin Li
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Haiming Hua
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Boyang Huang
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
| | - Peng Zhang
- College of Energy, Xiamen University, Xiamen 361102, P. R. China
| | - Jinbao Zhao
- State-Province Joint Engineering Laboratory of Power Source Technology for New Energy Vehicle, Engineering Research Center of Electrochemical Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, P. R. China
- College of Energy, Xiamen University, Xiamen 361102, P. R. China
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10
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He W, Ren Y, Lamsal BS, Pokharel J, Zhang K, Kharel P, Wu JJ, Xian X, Cao Y, Zhou Y. Decreasing Water Activity Using the Tetrahydrofuran Electrolyte Additive for Highly Reversible Aqueous Zinc Metal Batteries. ACS Appl Mater Interfaces 2023; 15:6647-6656. [PMID: 36696100 DOI: 10.1021/acsami.2c17714] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Aqueous zinc metal batteries show great promise in large-scale energy storage. However, the decomposition of water molecules leads to severe side reactions, resulting in the limited lifespan of Zn batteries. Here, the tetrahydrofuran (THF) additive was introduced into the zinc sulfate (ZnSO4) electrolyte to reduce water activity by modulating the solvation structure of the Zn hydration layer. The THF molecule can play as a proton acceptor to form hydrogen bonds with water molecules, which can prevent water-induced undesired reactions. Thus, in an optimal 2 M ZnSO4/THF (5% by volume) electrolyte, the hydrogen evolution reaction and byproduct precipitation can be suppressed, which greatly improves the cycling stability and Coulombic efficiency of reversible Zn plating/stripping. The Zn symmetrical cells exhibit ultralong working cycles with a wide range of current density and capacity. The THF additive also enables a high Coulombic efficiency in the Zn||Cu cell with an average value of 99.59% over 400 cycles and a high reversible capacity with a capacity retention of 97.56% after 250 cycles in the Zn||MnO2 full cells. This work offers an effective strategy with high scalability and low cost for the protection of the Zn metal electrodes in aqueous rechargeable batteries.
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Affiliation(s)
- Wei He
- Department of Electrical Engineering and Computer Science, South Dakota State University, Brookings, South Dakota57007, United States
| | - Yao Ren
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas76019, United States
| | - Buddhi Sagar Lamsal
- Department of Electrical Engineering and Computer Science, South Dakota State University, Brookings, South Dakota57007, United States
| | - Jyotshna Pokharel
- Department of Electrical Engineering and Computer Science, South Dakota State University, Brookings, South Dakota57007, United States
| | - Kena Zhang
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas76019, United States
| | - Parashu Kharel
- Department of Physics, South Dakota State University, Brookings, South Dakota57007, United States
| | - James J Wu
- NASA Glenn Research Center, Cleveland, Ohio44135, United States
| | - Xiaojun Xian
- Department of Electrical Engineering and Computer Science, South Dakota State University, Brookings, South Dakota57007, United States
| | - Ye Cao
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas76019, United States
| | - Yue Zhou
- Department of Mechanical Engineering, The University of Texas at Dallas, 800 W Campbell Rd, Richardson, Texas75080, United States
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11
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Qi C, Thompson D, Feng HA. Caution on Using Tetrahydrofuran for Processing Crystalline Silica Samples From Engineered Stone for XRD Analysis. Ann Work Expo Health 2022; 66:1210-1214. [PMID: 36066421 PMCID: PMC9669205 DOI: 10.1093/annweh/wxac063] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 07/07/2022] [Accepted: 08/12/2022] [Indexed: 12/14/2022] Open
Abstract
We conducted laboratory experiments to investigate a suspected effect of tetrahydrofuran (THF) on quantifying crystalline silica in samples collected from working with engineered stone when THF is used to process samples prior to the X-ray diffraction (XRD) analysis. Two groups of samples from grinding either engineered stone or granite were simultaneously taken from a laboratory testing system, with one group of samples using THF for processing and another group using muffle furnace for ashing. For each stone type, we also tested four levels of respirable dust loading on the samples by varying the grinding time from 1 to 8 min. Statistical analysis of the experimental results on crystalline silica contents of the two groups of samples showed that the difference between the two methods was not significant (P ≥ 0.05) for the granite at all four levels of respirable dust loading and for the engineered stone at the two levels of respirable dust loading greater than 0.5 mg. However, the crystalline silica content from using THF processing was significantly lower (P = 0.001) than that from using muffle furnace ashing for engineered stone when the respirable dust loading levels were less than 0.5 mg. For the engineered stone dust samples with grinding times of 1 and 2 min, the average respirable dust loading was about 0.19 and 0.34 mg, respectively; while the crystalline silica content from using THF processing was 30.9 and 21.5% lower than that from using muffle furnace ashing, respectively. Since most full-shift samples from field assessments in this industry are expected to have respirable dust loading less than 0.5 mg, muffle furnace or radio frequency plasma ashing should be specified as the preferred sample processing method instead of the THF processing method for quantification of crystalline silica when engineered stone is expected to present to avoid artificially reduced silica content values, which are likely caused by the reactions between THF and the resins in engineered stone.
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Affiliation(s)
- Chaolong Qi
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Field Studies and Engineering, 1090 Tusculum Ave, MS: R5, Cincinnati, OH, 45226, USA
| | - Drew Thompson
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Field Studies and Engineering, 1090 Tusculum Ave, MS: R5, Cincinnati, OH, 45226, USA
| | - H. Amy Feng
- Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Division of Field Studies and Engineering, 1090 Tusculum Ave, MS: R5, Cincinnati, OH, 45226, USA
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12
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González-Andrés P, Fernández-Peña L, Díez-Poza C, Barbero A. The Tetrahydrofuran Motif in Marine Lipids and Terpenes. Mar Drugs 2022; 20:642. [PMID: 36286465 DOI: 10.3390/md20100642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Heterocycles are particularly common moieties within marine natural products. Specifically, tetrahydrofuranyl rings are present in a variety of compounds which present complex structures and interesting biological activities. Focusing on terpenoids, a high number of tetrahydrofuran-containing metabolites have been isolated during the last decades. They show promising biological activities, making them potential leads for novel antibiotics, antikinetoplastid drugs, amoebicidal substances, or anticancer drugs. Thus, they have attracted the attention of the synthetics community and numerous approaches to their total syntheses have appeared. Here, we offer the reader an overview of marine-derived terpenoids and related compounds, their isolation, structure determination, and a special focus on their total syntheses and biological profiles.
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13
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Drozdowska K, Rehman A, Sai P, Stonio B, Krajewska A, Dub M, Kacperski J, Cywiński G, Haras M, Rumyantsev S, Österlund L, Smulko J, Kwiatkowski A. Organic Vapor Sensing Mechanisms by Large-Area Graphene Back-Gated Field-Effect Transistors under UV Irradiation. ACS Sens 2022; 7:3094-3101. [PMID: 36121758 DOI: 10.1021/acssensors.2c01511] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The gas sensing properties of graphene back-gated field-effect transistor (GFET) sensors toward acetonitrile, tetrahydrofuran, and chloroform vapors were investigated with the focus on unfolding possible gas detection mechanisms. The FET configuration of the sensor device enabled gate voltage tuning for enhanced measurements of changes in DC electrical characteristics. Electrical measurements were combined with a fluctuation-enhanced sensing methodology and intermittent UV irradiation. Distinctly different features in 1/f noise spectra for the organic gases measured under UV irradiation and in the dark were observed. The most intense response observed for tetrahydrofuran prompted the decomposition of the DC characteristic, revealing the photoconductive and photogating effect occurring in the graphene channel with the dominance of the latter. Our observations shed light on understanding surface processes at the interface between graphene and volatile organic compounds for graphene-based sensors in ambient conditions that yield enhanced sensitivity and selectivity.
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Affiliation(s)
- Katarzyna Drozdowska
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications, and Informatics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Adil Rehman
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Pavlo Sai
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Bartłomiej Stonio
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland.,Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Aleksandra Krajewska
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Maksym Dub
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Jacek Kacperski
- Institute of High Pressure Physics PAS, Sokołowska 29/37, 01-142 Warsaw, Poland
| | - Grzegorz Cywiński
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Maciej Haras
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland.,Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Sergey Rumyantsev
- CENTERA Laboratories, Institute of High Pressure Physics PAS, 01-142 Warsaw, Poland
| | - Lars Österlund
- Department of Materials Science and Engineering, The Ångström Laboratory, Uppsala University, P. O. Box 35, 75103 Uppsala, Sweden
| | - Janusz Smulko
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications, and Informatics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Andrzej Kwiatkowski
- Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications, and Informatics, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland
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14
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Wang Z, Zheng X, Liu X, Huang Y, Huang L, Chen Y, Han M, Luo W. Promoting Fast Na Ion Transport at Low Temperatures for Sodium Metal Batteries. ACS Appl Mater Interfaces 2022; 14:40985-40991. [PMID: 36049125 DOI: 10.1021/acsami.2c10915] [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: 06/15/2023]
Abstract
Cost concerns have promoted the rise of Na-based batteries as an alternative to Li-based batteries, and the energy density pursuits have brought attention to Na metal anodes. Numerous studies have been conducted on the failure mechanisms and improvement methods of Na metal batteries (NMBs) at room temperature; however, the low-temperature applications are still faced with more complex challenges. On the basis of the concentration effect of the electrolytes, we propose a dilute electrolyte for the low-temperature operation of NMBs. With the low salt concentration and tetrahydrofuran cosolvent, the affinity between Na ions and the solvent molecules is weakened to achieve fast reaction kinetics at low temperatures. The designed electrolyte enables an effectively decreased cell impedance, which improves the cycling stability of Na symmetric cells. As a result, the full cell paired with the Na3V2(PO4)3 cathode maintains a capacity of 80 mAh/g over 250 cycles at -20 °C. This work provides an electrolyte design strategy toward low-temperature NMBs.
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Affiliation(s)
- Zhongqiang Wang
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Xueying Zheng
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Xuyang Liu
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Yangyang Huang
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Liqiang Huang
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Yuwei Chen
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Mei Han
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Wei Luo
- Institute of New Energy for Vehicles, Shanghai Key Laboratory of Development & Application for Metallic Functional Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
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15
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Pham TD, Bin Faheem A, Lee KK. Design of a LiF-Rich Solid Electrolyte Interphase Layer through Highly Concentrated LiFSI-THF Electrolyte for Stable Lithium Metal Batteries. Small 2021; 17:e2103375. [PMID: 34636172 DOI: 10.1002/smll.202103375] [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] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Lithium metal is a promising anode material for lithium metal batteries (LMBs). However, dendrite growth and limited Coulombic efficiency (CE) during cycling have prevented its practical application in rechargeable batteries. Herein, a highly concentrated electrolyte composed of an ether solvent and lithium bis(fluorosulfonyl)imide (LiFSI) salt is introduced, which enables the cycling of a lithium metal anode at a high CE (up to ≈99%) without dendrite growth, even at high current densities. Using 3.85 m LiFSI in tetrahydrofuran (THF) as the electrolyte, a Li||Li symmetric cell can be cycled at 1.0 mA cm-2 for more than 1000 h with stable polarization of ≈0.1 V, and Li||LFP cells can be cycled at 2 C (1 C = 170 mA g-1 ) for more than 1000 cycles with a capacity retention of 94.5%. These excellent performances are observed to be attributed to the increased cation-anion associated complexes, such as contact ion pairs and aggregate in the highly concentrated electrolyte; revealed by Raman spectroscopy and theoretical calculations. These results demonstrate the benefits of a high-concentration LiFSI-THF electrolyte system, generating new possibilities for high-energy-density rechargeable LMBs.
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Affiliation(s)
- Thuy Duong Pham
- Department of Chemistry, Kunsan National University, Gunsan, Jeonbuk, 54150, Republic of Korea
| | - Abdullah Bin Faheem
- Department of Chemistry, Kunsan National University, Gunsan, Jeonbuk, 54150, Republic of Korea
| | - Kyung-Koo Lee
- Department of Chemistry, Kunsan National University, Gunsan, Jeonbuk, 54150, Republic of Korea
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16
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Alam RM, Keating JJ. Regioselective N-alkylation of the 1 H-indazole scaffold; ring substituent and N-alkylating reagent effects on regioisomeric distribution. Beilstein J Org Chem 2021; 17:1939-1951. [PMID: 34386104 PMCID: PMC8353588 DOI: 10.3762/bjoc.17.127] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/23/2021] [Indexed: 11/23/2022] Open
Abstract
The indazole scaffold represents a promising pharmacophore, commonly incorporated in a variety of therapeutic drugs. Although indazole-containing drugs are frequently marketed as the corresponding N-alkyl 1H- or 2H-indazole derivative, the efficient synthesis and isolation of the desired N-1 or N-2 alkylindazole regioisomer can often be challenging and adversely affect product yield. Thus, as part of a broader study focusing on the synthesis of bioactive indazole derivatives, we aimed to develop a regioselective protocol for the synthesis of N-1 alkylindazoles. Initial screening of various conditions revealed that the combination of sodium hydride (NaH) in tetrahydrofuran (THF) (in the presence of an alkyl bromide), represented a promising system for N-1 selective indazole alkylation. For example, among fourteen C-3 substituted indazoles examined, we observed > 99% N-1 regioselectivity for 3-carboxymethyl, 3-tert-butyl, 3-COMe, and 3-carboxamide indazoles. Further extension of this optimized (NaH in THF) protocol to various C-3, -4, -5, -6, and -7 substituted indazoles has highlighted the impact of steric and electronic effects on N-1/N-2 regioisomeric distribution. For example, employing C-7 NO2 or CO2Me substituted indazoles conferred excellent N-2 regioselectivity (≥ 96%). Importantly, we show that this optimized N-alkylation procedure tolerates a wide structural variety of alkylating reagents, including primary alkyl halide and secondary alkyl tosylate electrophiles, while maintaining a high degree of N-1 regioselectivity.
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Affiliation(s)
- Ryan M Alam
- Analytical and Biological Chemistry Research Facility (ABCRF), University College Cork, College Road, Cork, T12 YN60, Ireland
- School of Chemistry, Kane Building, University College Cork, T12 YN60, Ireland
| | - John J Keating
- Analytical and Biological Chemistry Research Facility (ABCRF), University College Cork, College Road, Cork, T12 YN60, Ireland
- School of Chemistry, Kane Building, University College Cork, T12 YN60, Ireland
- School of Pharmacy, Pharmacy Building, University College Cork, T12 YN60, Ireland
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17
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Podolian A, Nadtochiy A, Korotchenkov O, Schlosser V. Frequency-Dependent Sonochemical Processing of Silicon Surfaces in Tetrahydrofuran Studied by Surface Photovoltage Transients. Molecules 2021; 26:molecules26123756. [PMID: 34203065 PMCID: PMC8234855 DOI: 10.3390/molecules26123756] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/14/2021] [Accepted: 06/17/2021] [Indexed: 11/16/2022] Open
Abstract
The field of chemical and physical transformations induced by ultrasonic waves has shown steady progress during the past decades. There is a solid core of established results and some topics that are not thoroughly developed. The effect of varying ultrasonic frequency is among the most beneficial issues that require advances. In this work, the effect of sonication of Si wafers in tetrahydrofuran on the photovoltage performance was studied, with the specific goal of studying the influence of the varying frequency. The applied ultrasonic transducer design approach enables the construction of the transducer operating at about 400 kHz with a sufficient sonochemical efficiency. The measurements of the surface photovoltage (SPV) transients were performed on p-type Cz-Si(111) wafers. Sonication was done in tetrahydrofuran, methanol, and in their 3:1 mixture. When using tetrahydrofuran, the enhanced SPV signal (up to ≈80%) was observed due to increasing sonication frequency to 400 kHz. In turn, the signal was decreased down to ≈75% of the initial value when the frequency is lowered to 28 kHz. The addition of methanol suppressed this significant difference. It was implied that different decay processes with hydrogen decomposed from tetrahydrofuran could be attempted to explain the mechanism behind the observed frequency-dependent behavior.
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Affiliation(s)
- Artem Podolian
- Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine; (A.P.); (A.N.); (O.K.)
| | - Andriy Nadtochiy
- Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine; (A.P.); (A.N.); (O.K.)
| | - Oleg Korotchenkov
- Faculty of Physics, Taras Shevchenko National University of Kyiv, 01601 Kyiv, Ukraine; (A.P.); (A.N.); (O.K.)
| | - Viktor Schlosser
- Department of Electronic Properties of Materials, Faculty of Physics, University of Vienna, A-1090 Wien, Austria
- Correspondence: ; Tel.: +43-1-4277-72-611
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18
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Kondratov AP, Cherkasov EP, Paley V, Volinsky AA. Recording, Storage, and Reproduction of Information on Polyvinyl Chloride Films Using Shape Memory Effects. Polymers (Basel) 2021; 13:polym13111802. [PMID: 34070817 PMCID: PMC8199355 DOI: 10.3390/polym13111802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/18/2021] [Revised: 05/14/2021] [Accepted: 05/16/2021] [Indexed: 11/16/2022] Open
Abstract
Partial dissolution and plasticization are used for recording, storing, and reproducing information with modified industrial screen-printing equipment and aqueous solutions of colorless organic liquids on small surface area shape memory polymer films. To justify the choice of "ink" and evaluate the effectiveness of using organic liquids as high-speed polymer solvents, the new method for recording hidden information uses the calculation of the solubility parameter, differential scanning calorimetry, and the method of one-sided swelling of films under isometric conditions. Using the example of tactile marking of shrink labels made of polyvinyl chloride, the optimal conditions for recording hidden information on a film are established in terms of the concentration of an aqueous solution of tetrahydrofuran, the contact time, and the processing temperature of the polymer using screen printing equipment.
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Affiliation(s)
- Alexander P. Kondratov
- Department of Innovative Materials in the Print Media Industry, Moscow Polytechnic University, ul. Bolshaya Semenovskaya, 38, 107023 Moscow, Russia;
- Correspondence: (A.P.K.); (A.A.V.)
| | - Egor P. Cherkasov
- Department of Innovative Materials in the Print Media Industry, Moscow Polytechnic University, ul. Bolshaya Semenovskaya, 38, 107023 Moscow, Russia;
| | - Vladislav Paley
- Department of Mechanical Engineering, University of South Florida, 4202 E. Fowler Ave. ENG 030, Tampa, FL 33620, USA;
| | - Alex A. Volinsky
- Department of Mechanical Engineering, University of South Florida, 4202 E. Fowler Ave. ENG 030, Tampa, FL 33620, USA;
- Correspondence: (A.P.K.); (A.A.V.)
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19
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Nguyen TT, Pétuya C, Talaga D, Desmedt A. Promoting the Insertion of Molecular Hydrogen in Tetrahydrofuran Hydrate With the Help of Acidic Additives. Front Chem 2020; 8:550862. [PMID: 33173766 PMCID: PMC7591698 DOI: 10.3389/fchem.2020.550862] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 04/10/2020] [Accepted: 09/03/2020] [Indexed: 11/30/2022] Open
Abstract
Among hydrogen storage materials, hydrogen hydrates have received a particular attention over the last decades. The pure hydrogen hydrate is generated only at extremely high-pressure (few thousands of bars) and the formation conditions are known to be softened by co-including guest molecules such as tetrahydrofuran (THF). Since this discovery, there have been considerable efforts to optimize the storage capacities in hydrates through the variability of the formation condition, of the cage occupancy, of the chemical composition or of the hydrate structure (ranging from clathrate to semi-clathrate). In addition to this issue, the hydrogen insertion mechanism plays also a crucial role not only at a fundamental level, but also in view of potential applications. This paper aims at studying the molecular hydrogen diffusion in the THF hydrate by in-situ confocal Raman microspectroscopy and imaging, and at investigating the impact of strong acid onto this diffusive process. This study represents the first report to shed light on hydrogen diffusion in acidic THF-H2 hydrate. Integrating the present result with those from previous experimental investigations, it is shown that the hydrogen insertion in the THF hydrate is optimum for a pressure of ca. 55 bar at 270 K. Moreover, the co-inclusion of perchloric acid (with concentration as low as 1 acidic molecules per 136 water molecules) lead to promote the molecular hydrogen insertion within the hydrate structure. The hydrogen diffusion coefficient—measured at 270 K and 200 bar—is improved by a factor of 2 thanks to the acidic additive.
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Affiliation(s)
- The Thuong Nguyen
- Groupe Spectroscopie Moléculaire, ISM, UMR5255 CNRS-University, Bordeaux, France
| | - Claire Pétuya
- Groupe Spectroscopie Moléculaire, ISM, UMR5255 CNRS-University, Bordeaux, France.,Jet Propulsion Laboratory, California Institute of Technology, Passadena, CA, United States
| | - David Talaga
- Groupe Spectroscopie Moléculaire, ISM, UMR5255 CNRS-University, Bordeaux, France
| | - Arnaud Desmedt
- Groupe Spectroscopie Moléculaire, ISM, UMR5255 CNRS-University, Bordeaux, France
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20
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Ren H, Li H, Wang H, Huang H, Lu Z. Biodegradation of Tetrahydrofuran by the Newly Isolated Filamentous Fungus Pseudallescheria boydii ZM01. Microorganisms 2020; 8:microorganisms8081190. [PMID: 32764240 PMCID: PMC7464125 DOI: 10.3390/microorganisms8081190] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 07/20/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 11/16/2022] Open
Abstract
Tetrahydrofuran (THF) is widely used as a precursor for polymer syntheses and a versatile solvent in industries. THF is an environmental hazard and carcinogenic to humans. In the present study, a new THF-degrading filamentous fungus, Pseudallescheria boydii ZM01, was isolated and characterized. Strain ZM01 can tolerate a maximum THF concentration of 260 mM and can completely degrade 5 mM THF in 48 h, with a maximum THF degradation rate of 133.40 mg THF h−1 g−1 dry weight. Growth inhibition was not observed when the initial THF concentration was below 150 mM, and the maximum THF degradation rate was still maintained at 118.21 mg THF h−1 g−1 dry weight at 50 mM THF, indicating the great potential of this strain to degrade THF at high concentrations. The initial key metabolic intermediate 2-hydroxytetrahydrofuran was detected and identified by gas chromatography (GC) analyses for the first time during the THF degradation process. Analyses of the effects of initial pH, incubation temperature, and heavy metal ions on THF degradation revealed that strain ZM01 can degrade THF under a relatively wide range of conditions and has good degradation ability under low pH and Cu2+ stress, suggesting its adaptability and applicability for industrial wastewater treatment.
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21
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Singh S, Tiwari J, Jaiswal D, Sharma AK, Singh J, Singh V, Singh J. Nucleophilic Acylation with Aromatic Aldehydes to 2 Bromoacetonitrile: An Umpolung Strategy for the Synthesis of Active Methylene Compounds. Curr Org Synth 2020; 17:518-524. [PMID: 32538728 DOI: 10.2174/1570179417666200615153536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/26/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND A novel one-pot N-heterocyclic carbene (NHC)-catalysed acylation of 2- bromoacetonitrile with aromatic aldehydes is reported. The protocol involves carbonyl umpolung reactivity of aldehydes in which the carbonyl carbon attacks nucleophilically (as d1 nucleophile) on the electrophilic terminal of 2-bromoacetonitrile to afford 3-aryl-3-oxopropanenitrile. The salient features of this procedure are short reaction time, operational simplicity, ambient temperature, no by-product formation and high yields. MATERIALS AND METHODS A flame-dried round bottom flask was charged with Imidazolium salts (3a) (0.20 mmol). Aldehyde 1a (1.0 mmol), 2-bromoacetonitrile 2 (1.0 mmol), and THF / t-BuOH 5 mL; 10:1) were added at positive nitrogen pressure followed by the addition of DBU (0.15 mmol) through stirring. The resulting yellow- orange solution was stirred at room temperature for 5-6 h. After completion of the reaction (TLC monitored), the reaction mixture was concentrated under reduced pressure. The product was purified using hexane / EtOAc (10:1) as an eluent to provide analytically pure compound 4a. Physical data of representative compounds and the NMR spectroscopic data are in agreement with the literature value. RESULTS AND DISCUSSION The salient features of this procedure are short reaction time, operational simplicity, ambient temperature, no by-product formation and high yields. CONCLUSION To sum up, we have developed a convenient, efficient and one-pot route for 3-oxo-3- phenylpropanenitrile synthesis from NHC promoted direct nucleophilic acylation of aromatic aldehydes using 2- bromoacetonitrile. This method provided a wide range of products and good yields. To best of our knowledge, this is the new report for the synthesis of 3-oxo-3-phenylpropanenitrile through NHC promoted nucleophilic acylation of aromatic aldehyde.
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Affiliation(s)
- Shailesh Singh
- Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Jyoti Tiwari
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Deepali Jaiswal
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Amit Kumar Sharma
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Jaya Singh
- Department of Chemistry, LRPG College, Sahibabad, Ghaziabad- 201005, India
| | - Vandana Singh
- Department of Chemistry, University of Allahabad, Allahabad-211002, India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab, Department of Chemistry, University of Allahabad, Allahabad-211002, India
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Abstract
Lignocellulosic biomass as a potential alternative to fossil resource for the production of valuable chemicals and fuels has attracted substantial attention, while reducing the recalcitrance of lignocellulosic biomass is still challenging due to the complex and cross-linking structure of biomass. Solvent system plays important roles in the pretreatment of lignocellulose, enabling the transformation of solid biomass to liquid fluid with better mass and heat transfer, as well as in the selective formation of target products. In particular, H2O/tetrahydrofuran (H2O/THF) system has recently been widely applied in lignocellulose valorization, which has been proved to exhibit outstanding efficiency for the conversion of lignocellulose, solubilization of the intermediates and products, and shifting reaction equilibrium, thereby significantly improving the yield and selectivity of target products, as well as the full utilization of lignocellulose. In addition, THF shows low toxicity, and is known as a renewable solvent which can be produced from bio-derived chemicals. Herein, this review concentrates on the advances of H2O/THF system in lignocellulose valorization in recent years. Several aspects relative to the roles of H2O/THF system are discussed as follows: the pretreatment of lignin, conversion of hemicellulose and cellulose components in lignocelluloses, and the promoting formation of valuable chemicals like furfural, 5-hydroxymethyl furfural (HMF), levulinic acid, and so on, as well as the inhibiting role in humins formation. This review might provide useful information for the design of effective solvent system in full utilization of lignocellulosic biomass.
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Affiliation(s)
| | | | | | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, China
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Li KT, Chen KW. Cyclodehydration of 1,4-butanediol over Zr-Al Catalysts: Effect of Reaction Medium. Materials (Basel) 2019; 12:E2092. [PMID: 31261742 DOI: 10.3390/ma12132092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 06/23/2019] [Accepted: 06/25/2019] [Indexed: 11/17/2022]
Abstract
The conversion of 1,4-butanediol (BDO) to tetrahydrofuran (THF) in aqueous phase is desirable because BDO production technology is shifting to bio-based aqueous fermentation routes. In this study, liquid-phase cyclodehydration of BDO to THF was studied in two reaction media (pure BDO and aqueous BDO feeds) at 200–240 °C using ZrO2-Al2O3 (ZA) mixed oxides, which were made with a co-precipitation method and were characterized with XRD, BET, SEM/EDX, pyridine and n-butylamine adsorptions. The maximum acidity and the largest surface area occurred at Zr/Al atomic ratios of 1/1 (ZA11) and 1/3 (ZA13), respectively. The reaction exhibited pseudo-first-order; aqueous BDO feed had much greater rate constant than pure BDO feed, ascribed to the acidic properties of adsorbed water molecules (coordinated to surface metal cations) for the former case. For pure BDO feed, linear relation was observed between rate constant and catalyst acidity, and ZA11 reached a THF yield of 90.1% at 240 °C. With aqueous BDO feed, rate constant increased linearly with increasing surface area and ZA13 reached a THF yield of 97.1% at 220 °C. The change of optimum catalyst composition with reaction medium suggests that active sites for catalyzing BDO cyclodehydration changed with the reaction environment.
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Xiong Y, Mason OU, Lowe A, Zhou C, Chen G, Tang Y. Microbial Community Analysis Provides Insights into the Effects of Tetrahydrofuran on 1,4-Dioxane Biodegradation. Appl Environ Microbiol 2019; 85:e00244-19. [PMID: 30926731 DOI: 10.1128/AEM.00244-19] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 03/20/2019] [Indexed: 11/20/2022] Open
Abstract
Tetrahydrofuran (THF) is known to induce the biodegradation of 1,4-dioxane (dioxane), an emerging contaminant, but the mechanisms by which THF affects dioxane biodegradation in microbial communities are not well understood. To fill this knowledge gap, changes in the microbial community structure in microcosm experiments with synthetic medium and landfill leachate were examined over time using 16S rRNA gene amplicon sequencing and functional gene quantitative PCR assays. The overarching hypothesis being tested was that THF promoted dioxane biodegradation by increasing the abundance of dioxane-degrading bacteria in the consortium. The data revealed that in experiments with synthetic medium, the addition of THF significantly increased the abundance of Pseudonocardia, a genus with several representatives that can grow on both dioxane and THF, and of Rhodococ cus ruber, a species that can use THF as the primary growth substrate while cometabolizing dioxane. However, in similar experiments with landfill leachate, only R. ruber was significantly enriched. When the THF concentration was higher than the dioxane concentration, THF competitively inhibited dioxane degradation since dioxane degradation was negligible, while the dioxane-degrading bacteria and the corresponding THF/dioxane monooxygenase gene copies increased by a few orders of magnitude.IMPORTANCE Widespread in groundwater and carcinogenic to humans, 1,4-dioxane (dioxane) is attracting significant attention in recent years. Advanced oxidation processes can effectively remove dioxane but require high energy consumption and operation costs. Biological removal of dioxane is of particular interest due to the ability of some bacteria to mineralize dioxane at a low energy cost. Although dioxane is generally considered recalcitrant to biodegradation, more than 20 types of bacteria can degrade dioxane as the sole electron donor substrate or the secondary electron donor substrate. In the latter case, tetrahydrofuran (THF) is commonly studied as the primary electron donor substrate. Previous work has shown that THF promotes dioxane degradation at a low THF concentration but inhibits dioxane degradation at a high THF concentration. Our work expanded on the previous work by mechanically examining the effects of THF on dioxane degradation in a microbial community context.
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25
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Otvagina KV, Penkova AV, Dmitrenko ME, Kuzminova AI, Sazanova TS, Vorotyntsev AV, Vorotyntsev IV. Novel Composite Membranes Based on Chitosan Copolymers with Polyacrylonitrile and Polystyrene: Physicochemical Properties and Application for Pervaporation Dehydration of Tetrahydrofuran. Membranes (Basel) 2019; 9:E38. [PMID: 30866529 DOI: 10.3390/membranes9030038] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 02/27/2019] [Accepted: 03/02/2019] [Indexed: 11/16/2022]
Abstract
Pervaporation has been applied for tetrahydrofuran (THF) dehydration with novel composite membranes advanced by a thin selective layer composed of chitosan (CS) modified by copolymerization with vinyl monomers, acrylonitrile (AN) and styrene, in order to improve the chemical and mechanical stability of CS-based membranes. Composite membranes were developed by depositing a thin selective layer composed of CS copolymers onto a commercially-available porous support based on aromatic polysulfonamide (UPM-20®). The topography and morphology of the obtained materials were studied by atomic force microscopy (AFM), scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). Thermal properties and stability were determined by coupled evolved gas analysis (EGA-MS). Transport properties were estimated in pervaporation dehydration of THF. The effect of operating parameters for the pervaporation dehydration of THF such as feed compositions and temperatures (295, 308 and 323 K) was evaluated. It was shown that CS modification with different vinyl monomers led to a difference in physical and transport properties. The composite membrane with the thin selective layer based on CS-PAN copolymer demonstrated optimal transport properties and exhibited the highest water content in the permeate with a reasonably high permeation flux.
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Siangsai A, Inkong K, Kulprathipanja S, Kitiyanan B, Rangsunvigit P. Roles of Sodium Dodecyl Sulfate on Tetrahydrofuran-Assisted Methane Hydrate Formation. J Oleo Sci 2018; 67:707-717. [PMID: 29760334 DOI: 10.5650/jos.ess17275] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Sodium dodecyl sulfate (SDS) markedly improved tetrahydrofuran (THF) - assisted methane hydrate formation. Firstly, methane hydrate formation with different THF amount, 1, 3, and 5.56 mol%, was studied. SDS with 1, 4, and 8 mM was then investigated for its roles on the methane hydrate formation with and without THF. The experiments were conducted in a quiescent condition in a fixed volume crystallizer at 8 MPa and 4°C. The results showed that almost all studied THF and SDS concentrations enhanced the methane hydrate formation kinetics and methane consumption compared to that without the promoters, except 1 mol% THF. Although, with 1 mol% THF, there were no hydrates formed for 48 hours, the addition of just 1 mM SDS surprisingly promoted the hydrate formation with a significant increased in the kinetics. This prompts the use of methane hydrate technology for natural gas storage application with minimal promoters.
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Affiliation(s)
| | - Katipot Inkong
- The Petroleum and Petrochemical College, Chulalongkorn University
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Son J, Reidl TW, Kim KH, Wink DJ, Anderson LL. Generation and Rearrangement of N,O-Dialkenylhydroxylamines for the Synthesis of 2-Amino tetrahydrofurans. Angew Chem Int Ed Engl 2018; 57:6597-6600. [PMID: 29603566 DOI: 10.1002/anie.201800908] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 01/22/2018] [Revised: 03/27/2018] [Indexed: 01/01/2023]
Abstract
A new diastereoselective route to 2-aminotetrahydrofurans has been developed from N,O-dialkenylhydroxylamines. These intermediates undergo a spontaneous C-C bond-forming [3,3]-sigmatropic rearrangement followed by a C-O bond-forming cyclization. A copper-catalyzed N-alkenylation of an N-Boc-hydroxylamine with alkenyl iodides, and a base-promoted addition of the resulting N-hydroxyenamines to an electron-deficient allene, provide modular access to these novel rearrangement precursors. The scope of this de novo synthesis of simple nucleoside analogues has been explored to reveal trends in diastereoselectivity and reactivity. In addition, a base-promoted ring-opening and Mannich reaction has been discovered to covert 2-aminotetrahydrofurans to cyclopentyl β-aminoacid derivatives or cyclopentenones.
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Affiliation(s)
- Jongwoo Son
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor Street, Chicago, IL, USA
| | - Tyler W Reidl
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor Street, Chicago, IL, USA
| | - Ki Hwan Kim
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor Street, Chicago, IL, USA
| | - Donald J Wink
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor Street, Chicago, IL, USA
| | - Laura L Anderson
- Department of Chemistry, University of Illinois at Chicago, 845 W Taylor Street, Chicago, IL, USA
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28
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Nucciarelli F, Bravo I, Catalan-Gomez S, Vázquez L, Lorenzo E, Pau JL. High Ultraviolet Absorption in Colloidal Gallium Nanoparticles Prepared from Thermal Evaporation. Nanomaterials (Basel) 2017; 7:nano7070172. [PMID: 28684687 PMCID: PMC5535238 DOI: 10.3390/nano7070172] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 06/26/2017] [Accepted: 06/30/2017] [Indexed: 11/16/2022]
Abstract
New methods for the production of colloidal Ga nanoparticles (GaNPs) are introduced based on the evaporation of gallium on expendable aluminum zinc oxide (AZO) layer. The nanoparticles can be prepared in aqueous or organic solvents such as tetrahydrofuran in order to be used in different sensing applications. The particles had a quasi mono-modal distribution with diameters ranging from 10 nm to 80 nm, and their aggregation status depended on the solvent nature. Compared to common chemical synthesis, our method assures higher yield with the possibility of tailoring particles size by adjusting the deposition time. The GaNPs have been studied by spectrophotometry to obtain the absorption spectra. The colloidal solutions exhibit strong plasmonic absorption in the ultra violet (UV) region around 280 nm, whose width and intensity mainly depend on the nanoparticles dimensions and their aggregation state. With regard to the colloidal GaNPs flocculate behavior, the water solvent case has been investigated for different pH values, showing UV-visible absorption because of the formation of NPs clusters. Using discrete dipole approximation (DDA) method simulations, a close connection between the UV absorption and NPs with a diameter smaller than ~40 nm was observed.
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Affiliation(s)
- Flavio Nucciarelli
- Physics Department, Lancaster University, Lancaster LA1 4YB, UK.
- Grupo de Electrónica y Semiconductores, Departamento de Física Aplicada, Universida Autónoma de Madrid, 28049 Madrid, Spain.
| | - Iria Bravo
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), Faraday, 9, Campus UAM, Cantoblanco, 28049 Madrid, Spain.
| | - Sergio Catalan-Gomez
- Grupo de Electrónica y Semiconductores, Departamento de Física Aplicada, Universida Autónoma de Madrid, 28049 Madrid, Spain.
| | - Luis Vázquez
- Materials Science Factory, Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain.
| | - Encarnación Lorenzo
- Departamento de Química Analítica y Análisis Instrumental, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain.
- Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA-Nanociencia), Faraday, 9, Campus UAM, Cantoblanco, 28049 Madrid, Spain.
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain.
| | - Jose Luis Pau
- Grupo de Electrónica y Semiconductores, Departamento de Física Aplicada, Universida Autónoma de Madrid, 28049 Madrid, Spain.
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29
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Liu X, Tao X, Zheng Q, Xu H, Zhang Y, Lei T, Yin T, He H, Tang X. Development and validation of an LC-ESI-MS/MS approach to determine a highly hydrophobic drug, norcantharidin palmitate, and apply to a preliminary pharmacokinetic study in rats. Biomed Chromatogr 2017; 31. [PMID: 28500645 DOI: 10.1002/bmc.4010] [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: 11/30/2016] [Revised: 04/30/2017] [Accepted: 05/10/2017] [Indexed: 11/11/2022]
Abstract
In order to investigate the pharmacokinetics of norcantharidin palmitate (NCTD-PAL) in rats, we developed and validated an LC-ESI-MS/MS method. The NCTD-PAL and internal standard (triamcinoloneacetonide palmitate, TAP) were separated on a Phenomenex Kinetex®XB C18 column, and the mobile phase was composed of tetrahydrofuran (THF)-acetonitrile (20/80, v/v) and an aqueous phase containing 0.2% ammonium hydroxide at a flow rate of 0.3 mL/min. The ESI interface operated in positive mode was used to acquire the mass spectrometric data, and the transition ions were m/z 635.50 → 168.95 and 673.65 → 397.13 for NCTD-PAL and IS, respectively. The method had a linear range of 10-2000 ng/mL with a correlation coefficient of >0.99. The accuracy (RE, %) was within ±10.1%, and the intra- and inter-day precisions (RSD, %) were 10.9 and 13.8%, respectively. The extraction recovery of NCTD-PAL at different concentrations ranged from 89.3 to 102.0%. The validated approach was efficaciously applied to a pharmacokinetic study of NCTD-PAL in rats via intravenous injection. Based on these results obtained, this method is practical and suitable for a wide range of applications.
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Affiliation(s)
- Xiaolin Liu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Xiaoguang Tao
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Qi Zheng
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Hang Xu
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Yu Zhang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,Jiangsu Kanion Pharmaceutical Co. Ltd, Lianyungang, Jiangsu, People's Republic of China
| | - Tian Lei
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Tian Yin
- School of Functional food and Wine, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China.,School of Chinese Materia Media, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Haibing He
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
| | - Xing Tang
- Department of Pharmaceutics, College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning, People's Republic of China
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30
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Madhu D, Arora R, Sahani S, Singh V, Sharma YC. Synthesis of High-Quality Biodiesel Using Feedstock and Catalyst Derived from Fish Wastes. J Agric Food Chem 2017; 65:2100-2109. [PMID: 28230995 DOI: 10.1021/acs.jafc.6b05608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A low-cost and high-purity calcium oxide (CaO) was prepared from waste crab shells, which were extracted from the dead crabs, was used as an efficient solid base catalyst in the synthesis of biodiesel. Raw fish oil was extracted from waste parts of fish through mechanical expeller followed by solvent extraction. Physical as well as chemical properties of raw fish oil were studied, and its free fatty acid composition was analyzed with GC-MS. Stable and high-purity CaO was obtained when the material was calcined at 800 °C for 4 h. Prepared catalyst was characterized by XRD, FT-IR, and TGA/DTA. The surface structure of the catalyst was analyzed with SEM, and elemental composition was determined by EDX spectra. Esterification followed by transesterification reactions were conducted for the synthesis of biodiesel. The effect of cosolvent on biodiesel yield was studied in each experiment using different solvents such as toluene, diethyl ether, hexane, tetrahydrofuran, and acetone. High-quality and pure biodiesel was synthesized and characterized by 1H NMR and FT-IR. Biodiesel yield was affected by parameters such as reaction temperature, reaction time, molar ratio (methanol:oil), and catalyst loading. Properties of synthesized biodiesel such as density, kinematic viscosity, and cloud point were determined according to ASTM standards. Reusability of prepared CaO catalyst was checked, and the catalyst was found to be stable up to five runs without significant loss of catalytic activity.
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Affiliation(s)
- Devarapaga Madhu
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi , Varanasi 221005, India
| | - Rajan Arora
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU) Varanasi , Varanasi 221005, India
| | - Shalini Sahani
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi , Varanasi 221005, India
| | - Veena Singh
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi , Varanasi 221005, India
| | - Yogesh Chandra Sharma
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi , Varanasi 221005, India
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31
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Sabbatani J, Maulide N. Temporary Generation of a Cyclopropyl Oxocarbenium Ion Enables Highly Diastereoselective Donor-Acceptor Cyclopropane Cycloaddition. Angew Chem Int Ed Engl 2016; 55:6780-3. [PMID: 27099179 DOI: 10.1002/anie.201601340] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [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: 02/05/2016] [Revised: 03/07/2016] [Indexed: 11/08/2022]
Abstract
A novel formal [3+2] cycloaddition of cyclopropylacetals and aldehydes was developed, and the resulting trisubstituted tetrahydrofurans display three new chiral centers formed with highly diastereoselectivity. This method is stereocomplementary to most previously reported cycloadditions of malonate diesters, relies on the transient generation of cyclopropyl oxocarbenium ions, proceeds under mild conditions, and is based on the concept of temporary activation of an otherwise inert protecting group.
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Affiliation(s)
- Juliette Sabbatani
- Fakultät für Chemie, Institut für Organische Chemie, Universität Wien, Währinger Straße 38, 1090, Wien, Austria
| | - Nuno Maulide
- Fakultät für Chemie, Institut für Organische Chemie, Universität Wien, Währinger Straße 38, 1090, Wien, Austria.
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32
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Hua YZ, Liu MM, Huang PJ, Song X, Wang MC, Chang JB. A New Strategy for Enantioselective Construction of Multisubstituted Five-Membered Oxygen Heterocycles via a Domino Michael/Hemiketalization Reaction. Chemistry 2015; 21:11994-8. [PMID: 26177976 DOI: 10.1002/chem.201501655] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [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: 04/28/2015] [Indexed: 01/05/2023]
Abstract
A new highly enantioselective domino Michael/hemiketalization reaction of α-hydroxyacetophenone with β,γ-unsaturated α-keto esters for the synthesis of 2,2,4,5-tetrasubstituted chiral tetrahydrofurans is reported. With 2 mol % intramolecular dinuclear zinc-AzePhenol complex prepared in situ from the reaction of multidentate semi-azacrown ether ligand with ZnEt2 , the corresponding anti-multisubstituted tetrahydrofuran products were obtained in up to 90 % yields, and 98 % enantiomeric excess (ee) at 0 °C for 45 min. Moreover, the products were easily converted to 2,3,5-trisubstituted 2,3-dihydrofurans without any loss in optical activity.
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Affiliation(s)
- Yuan-Zhao Hua
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China)
| | - Meng-Meng Liu
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China)
| | - Pei-Jin Huang
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China)
| | - Xixi Song
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China)
| | - Min-Can Wang
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China).
| | - Jun-Biao Chang
- College of Chemistry and Molecular Engineering, Zhengzhou University, 75, Daxue Street, Zhengzhou City, 450052 (China).
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33
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He Z, Zhang K, Wang H, Lv Z. Trehalose promotes Rhodococcus sp. strain YYL colonization in activated sludge under tetrahydrofuran (THF) stress. Front Microbiol 2015; 6:438. [PMID: 26029182 PMCID: PMC4429620 DOI: 10.3389/fmicb.2015.00438] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 03/14/2015] [Accepted: 04/23/2015] [Indexed: 12/20/2022] Open
Abstract
Few studies have focused on the role of compatible solutes in changing the microbial community structure in bioaugmentation systems. In this study, we investigated the influence of trehalose as a biostimulant on the microbial community in tetrahydrofuran (THF)-treated wastewater bioaugmentation systems with Rhodococcus sp. YYL. Functional gene profile changes were used to study the variation in the microbial community. Soluble di-iron monooxygenases (SDIMO), particularly group-5 SDIMOs (i.e., tetrahydrofuran and propane monooxygenases), play a significant role in the initiation of the ring cleavage of tetrahydrofuran. Group-5 SDIMOs genes are enriched upon trehalose addition, and exogenous tetrahydrofuran monooxygenase (thmA) genes can successfully colonize bioaugmentation systems. Cytochrome P450 monooxygenases (P450s) have a significant role in catalyzing the region- and stereospecific oxidation of non-activated hydrocarbons, and THF was reported to inhibit P450s in the environment. The CYP153 family was chosen as a representative P450 to study the inhibitory effects of THF. The results demonstrated that CYP153 family genes exhibited significant changes upon THF treatment and that trehalose helped maintain a rich diversity and high abundance of CYP153 family genes. Biostimulation with trehalose could alleviate the negative effects of THF stress on microbial diversity in bioaugmentation systems. Our results indicated that trehalose as a compatible solute plays a significant role for environmental strains under extreme conditions.
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Affiliation(s)
- Zhixing He
- College of Life Sciences, Zhejiang University Hangzhou, China
| | - Kai Zhang
- College of Life Sciences, Zhejiang University Hangzhou, China
| | - Haixia Wang
- College of Life Sciences, Zhejiang University Hangzhou, China
| | - Zhenmei Lv
- College of Life Sciences, Zhejiang University Hangzhou, China
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34
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Hinz JM. Impact of abasic site orientation within nucleosomes on human APE1 endonuclease activity. Mutat Res 2014; 766-767:19-24. [PMID: 25083139 DOI: 10.1016/j.mrfmmm.2014.05.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [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: 12/20/2013] [Revised: 05/20/2014] [Accepted: 05/30/2014] [Indexed: 01/10/2023]
Abstract
Glycosylases responsible for recognizing DNA lesions and initiating Base Excision Repair (BER) are impeded by the presence of histones, which are essential for compaction of the genetic material in the nucleus. Abasic sites are an abundant mutagenic lesion in the DNA, arising spontaneously and as the product of glycosylase activity, making it a common intermediate in BER. The apurinic/apyrimidinic endonuclease 1 (APE1) recognizes abasic sites and cleaves the DNA backbone adjacent to the lesion, creating the single-strand break essential for the subsequent steps of BER. In this study the endonuclease activity of human APE1 was measured on reconstituted nucleosome core particles (NCPs) with DNA containing enzymatically-created abasic sites (AP) or the abasic site analog tetrahydrofuran (TF) at different rotational positions relative to the histone core surface. The presence of histones on the DNA reduced APE1 activity overall, and the magnitude was greatly influenced by differences in orientation of the lesions along the DNA gyre relative to the histone core. Abasic moieties oriented with their phosphate backbones adjacent to the underlying histones (In) were cleaved less efficiently than those oriented away from the histone core (Out) or between the In and Out orientations (Mid). The impact on APE1 at each orientation was very similar between the AP and TF lesions, highlighting the dependability of the TF abasic analog in APE1 activity measurements in nucleosomes. Measurement of APE1 binding to the NCP substrates reveals a substantial reduction in its interaction with nucleosomes compared to naked DNA, also in a lesion orientation-dependent manner, reinforcing the concept that reduction in APE1 activity on nucleosomes is due to occlusion from its abasic DNA substrate by the histones. These results suggest that APE1 activity in nucleosomes, like BER glycosylases, is primarily regulated by its chance interactions with transiently exposed lesions.
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Affiliation(s)
- John M Hinz
- School of Molecular Biosciences, Washington State University, Pullman, WA 99164-7520
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35
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Bonnet M, Flanagan JU, Chan DA, Giaccia AJ, Hay MP. Identifying novel targets in renal cell carcinoma: design and synthesis of affinity chromatography reagents. Bioorg Med Chem 2014; 22:711-20. [PMID: 24387866 DOI: 10.1016/j.bmc.2013.12.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/29/2013] [Accepted: 12/08/2013] [Indexed: 01/25/2023]
Abstract
Two novel scaffolds, 4-pyridylanilinothiazoles (PAT) and 3-pyridylphenylsulfonyl benzamides (PPB), previously identified as selective cytotoxins for von Hippel-Lindau-deficient Renal Carcinoma cells, were used as templates to prepare affinity chromatography reagents to aid the identification of the molecular targets of these two classes. Structure-activity data and computational models were used to predict possible points of attachment for linker chains. In the PAT class, Click coupling of long chain azides with 2- and 3-pyridylanilinothiazoleacetylenes gave triazole-linked pyridylanilinothiazoles which did not retain the VHL-dependent selectivity of parent analogues. For the PPB class, Sonagashira coupling of 4-iodo-(3-pyridylphenylsulfonyl)benzamide with a propargyl hexaethylene glycol carbamate gave an acetylene which was reduced to the corresponding alkyl 3-pyridylphenylsulfonylbenzamide. This reagent retained the VHL-dependent selectivity of the parent analogues and was successfully utilized as an affinity reagent.
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36
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Vo QV, Trenerry C, Rochfort S, Wadeson J, Leyton C, Hughes AB. Synthesis and anti-inflammatory activity of indole glucosinolates. Bioorg Med Chem 2013; 22:856-64. [PMID: 24360830 DOI: 10.1016/j.bmc.2013.12.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [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: 09/26/2013] [Revised: 11/21/2013] [Accepted: 12/02/2013] [Indexed: 11/24/2022]
Abstract
The nitronate and nitrovinyl methods to synthesize indole glucosinolates (GLs) have been investigated. The results were applied to generally the most prevalent natural indole glucosinolates to synthesize 4-methoxyglucobrassicin (MGB) and neo-glucobrassicin (NGB) in moderate overall yield for the first time. The anti-inflammatory activity of the synthetic indole GLs was determined by inhibition of TNF-α secretion in LPS-stimulated THP-1 cells. The data showed that glucobrassicin (GB) exhibited higher activity than other synthetic indolyl GLs.
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Affiliation(s)
- Quan V Vo
- Department of Chemistry, La Trobe University, Victoria 3086, Australia
| | - Craige Trenerry
- Department of Primary Industries, Knoxfield Centre, 621 Burwood Highway, Knoxfield 3180, Australia
| | - Simone Rochfort
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia; La Trobe University, Victoria 3086, Australia
| | - Jenny Wadeson
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia
| | - Carolina Leyton
- Department of Primary Industries, Victorian AgriBiosciences Centre, La Trobe University Research and Development Park, 1 Park Drive, Bundoora 3083, Victoria, Australia
| | - Andrew B Hughes
- Department of Chemistry, La Trobe University, Victoria 3086, Australia.
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37
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Desphande A, Xia G, Boerma LJ, Vines KK, Atigadda VR, Lobo-Ruppert S, Grubbs CJ, Moeinpour FL, Smith CD, Christov K, Brouillette WJ, Muccio DD. Methyl-substituted conformationally constrained rexinoid agonists for the retinoid X receptors demonstrate improved efficacy for cancer therapy and prevention. Bioorg Med Chem 2014; 22:178-85. [PMID: 24359708 DOI: 10.1016/j.bmc.2013.11.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 11/11/2013] [Accepted: 11/20/2013] [Indexed: 11/20/2022]
Abstract
(2E,4E,6Z,8Z)-8-(3',4'-Dihydro-1'(2H)-naphthalen-1'-ylidene)-3,7-dimethyl-2,3,6-octatrienoinic acid, 9cUAB30, is a selective rexinoid for the retinoid X nuclear receptors (RXR). 9cUAB30 displays substantial chemopreventive capacity with little toxicity and is being translated to the clinic as a novel cancer prevention agent. To improve on the potency of 9cUAB30, we synthesized 4-methyl analogs of 9cUAB30, which introduced chirality at the 4-position of the tetralone ring. The syntheses and biological evaluations of the racemic homolog and enantiomers are reported. We demonstrate that the S-enantiomer is the most potent and least toxic even though these enantiomers bind in a similar conformation in the ligand binding domain of RXR.
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38
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Eibl C, Munoz L, Tomassoli I, Stokes C, Papke RL, Gündisch D. The 3,7-diazabicyclo[3.3.1]nonane scaffold for subtype selective nicotinic acetylcholine receptor ligands. Part 2: carboxamide derivatives with different spacer motifs. Bioorg Med Chem 2013; 21:7309-29. [PMID: 24145137 DOI: 10.1016/j.bmc.2013.09.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [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: 06/23/2013] [Revised: 09/15/2013] [Accepted: 09/24/2013] [Indexed: 11/30/2022]
Abstract
3,7-Diazabicyclo[3.3.1]nonane (bispidine) based nicotinic acetylcholine receptor (nAChR) ligands have been synthesized and evaluated for nAChRs interaction. Diverse spacer motifs were incorporated between the hydrogen bond acceptor (HBA) part and a variety of substituted (hetero)aryl moieties. Bispidine carboxamides bearing spacer motifs often showed high affinity in the low nanomolar range and selectivity for the α4β2(∗) nAChR. Compounds 15, 25, and 47 with Ki values of about 1 nM displayed the highest affinities for α4β2(∗) nAChR. All evaluated compounds are partial agonists or antagonists at α4β2(∗), with reduced or no effects on α3β4(∗) with the exception of compound 15 (agonist), and reduced or no effect at α7 and muscle subtypes.
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Affiliation(s)
- Christoph Eibl
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-53121 Bonn, Germany; Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
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39
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Mullins EA, Rubinson EH, Eichman BF. The substrate binding interface of alkylpurine DNA glycosylase AlkD. DNA Repair (Amst) 2013; 13:50-4. [PMID: 24286669 DOI: 10.1016/j.dnarep.2013.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [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: 09/25/2013] [Revised: 10/28/2013] [Accepted: 10/28/2013] [Indexed: 12/27/2022]
Abstract
Tandem helical repeats have emerged as an important DNA binding architecture. DNA glycosylase AlkD, which excises N3- and N7-alkylated nucleobases, uses repeating helical motifs to bind duplex DNA and to selectively pause at non-Watson-Crick base pairs. Remodeling of the DNA backbone promotes nucleotide flipping of the lesion and the complementary base into the solvent and toward the protein surface, respectively. The important features of this new DNA binding architecture that allow AlkD to distinguish between damaged and normal DNA without contacting the lesion are poorly understood. Here, we show through extensive mutational analysis that DNA binding and N3-methyladenine (3mA) and N7-methylguanine (7mG) excision are dependent upon each residue lining the DNA binding interface. Disrupting electrostatic or hydrophobic interactions with the DNA backbone substantially reduced binding affinity and catalytic activity. These results demonstrate that residues seemingly only involved in general DNA binding are important for catalytic activity and imply that base excision is driven by binding energy provided by the entire substrate interface of this novel DNA binding architecture.
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Affiliation(s)
- Elwood A Mullins
- Department of Biological Sciences and Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Emily H Rubinson
- Department of Biological Sciences and Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Brandt F Eichman
- Department of Biological Sciences and Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA.
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40
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Moore SPG, Toomire KJ, Strauss PR. DNA modifications repaired by base excision repair are epigenetic. DNA Repair (Amst) 2013; 12:1152-8. [PMID: 24216087 DOI: 10.1016/j.dnarep.2013.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 10/04/2013] [Accepted: 10/07/2013] [Indexed: 02/03/2023]
Abstract
CREB controls ∼25% of the mammalian transcriptome. Small changes in binding to its consensus (CRE) sequence are likely to be amplified many fold in initiating transcription. Here we show that DNA lesions repaired by the base excision repair (BER) pathway modulate CREB binding to CRE. We generated Kd values by electrophoretic mobility shift assays using purified human CREB and a 39-mer double-stranded oligonucleotide containing modified or wild-type CRE. CRE contains two guanine residues per strand, one in a CpG islet. Alterations in CRE resulted in positive or negative changes in Kd over two orders of magnitude depending on location and modification. Cytosine methylation or oxidation of both guanines greatly diminished binding; a G/U mispair in the CpG context enhanced binding. Intermediates in the BER pathway at one G residue or the other resulted in reduced binding, depending on the specific location, while there was no change in binding when the single G residue outside of the CpG islet was oxidized. CREB recruits other partners after dimers form on DNA. Only UpG increased DNA.CREB dimer formation. Since oxidation is ongoing and conversion of cytosine to uracil occurs spontaneously or at specific times during differentiation and development, we propose that BER substrates are epigenetic and modulate transcription factor recognition/binding.
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Affiliation(s)
- Stephen P G Moore
- Department of Biology, Northeastern University, Boston, MA, 02115, United States
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41
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de Miguel L, Noiray M, Surpateanu G, Iorga BI, Ponchel G. Poly(γ-benzyl-L-glutamate)-PEG-alendronate multivalent nanoparticles for bone targeting. Int J Pharm 2013; 460:73-82. [PMID: 24211357 DOI: 10.1016/j.ijpharm.2013.10.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [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: 08/29/2013] [Revised: 10/21/2013] [Accepted: 10/28/2013] [Indexed: 10/26/2022]
Abstract
Hydroxyapatite (HAP), a highly specific component of bone tissue, is the main target in order to impart osteotropicity. Bone targeted nanoparticles can increase the strength of the interaction with HAP through multivalency and thus constitute a valuable strategy in the therapeutics of skeletal diseases. PBLG10k-b-PEG6k-alendronate nanoparticles (~ 75 nm) were prepared by a simple nanoprecipitation method. The calcium affinity (KCa(+2)=1.8 × 10(4)M(-1)) of these nanoparticles was evaluated using isothermal titration calorimetry. The multivalent interaction with HAP surfaces (KHAP) was studied by fluorescence and was estimated to be 1.1 × 10(10)M(-1), which is more than 4000 times stronger than the reported monovalent interaction between alendronate and HAP surfaces. Molecular modeling suggests that the number of binding sites available at the HAP surface is in large excess than what is required for the whole surface coverage by alendronate decorated nanoparticles. The lower calcium affinity of these nanoparticles than for HAP allows calcium bound nanoparticles to interact with HAP, which yields a deeper understanding of bone targeted carriers and could potentially improve their bone targeting properties.
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Affiliation(s)
- Laura de Miguel
- Univ. Paris Sud, UMR CNRS 8612, Institut Galien, 92296 Châtenay-Malabry Cedex, France.
| | - Magali Noiray
- Univ. Paris Sud, UMR CNRS 8612, Institut Galien, 92296 Châtenay-Malabry Cedex, France
| | - Georgiana Surpateanu
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Centre de Recherche de Gif-sur-Yvette, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Bogdan I Iorga
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Centre de Recherche de Gif-sur-Yvette, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Gilles Ponchel
- Univ. Paris Sud, UMR CNRS 8612, Institut Galien, 92296 Châtenay-Malabry Cedex, France
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42
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Abstract
Different strategies for the racemic or enantiospecific total syntheses of plant and mammalian 3,4-dibenzyltetrahydrofuran lignans are reviewed and compared. The multi-step approaches have various key step strategies: Diels-Alder reactions, Stobbe condensations, Michael additions, alkylations, nitrile oxide cycloadditions, radical cyclisations, dianion and oxidative couplings.
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Affiliation(s)
- Monika Pohjoispää
- Laboratory of Organic Chemistry, Department of Chemistry, P.O. Box 55, FIN-00014, University of Helsinki, Helsinki, 00560, Finland.
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43
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Dal Ben D, Buccioni M, Lambertucci C, Thomas A, Klotz KN, Federico S, Cacciari B, Spalluto G, Volpini R. 8-(2-Furyl)adenine derivatives as A₂A adenosine receptor ligands. Eur J Med Chem 2013; 70:525-35. [PMID: 24189496 DOI: 10.1016/j.ejmech.2013.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 10/03/2013] [Indexed: 11/19/2022]
Abstract
Selective adenosine receptor modulators are potential tools for numerous therapeutic applications, including cardiovascular, inflammatory, and neurodegenerative diseases. In this work, the synthesis and biological evaluation at the four human adenosine receptor subtypes of a series of 9-substituted 8-(2-furyl)adenine derivatives are reported. Results show that 8-(2-furyl)-9-methyladenine is endowed with high affinity at the A₂A subtype. Further modification of this compound with introduction of arylacetyl or arylcarbamoyl groups in N(6)-position takes to different effects on the A₂A affinity and in particular on the selectivity versus the other three adenosine receptor subtypes. A molecular modelling analysis at three different A₂A receptor crystal structures provides an interpretation of the obtained biological results.
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Affiliation(s)
- Diego Dal Ben
- School of Pharmacy, Medicinal Chemistry Unit, University of Camerino, Via S. Agostino 1, I-62032 Camerino, MC, Italy
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44
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Qu M, Nan X, Gao Z, Guo B, Liu B, Chen Z. Protective effects of lycopene against methylmercury-induced neurotoxicity in cultured rat cerebellar granule neurons. Brain Res 2013; 1540:92-102. [PMID: 24120987 DOI: 10.1016/j.brainres.2013.10.005] [Citation(s) in RCA: 39] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 09/23/2013] [Accepted: 10/03/2013] [Indexed: 12/24/2022]
Abstract
Methylmercury (MeHg) is a neurotoxin that induces neuronal degeneration in the central nervous system. Oxidative stress and mitochondrial dysfunction are widely accepted as central pathogenic mechanisms of MeHg-mediated neurotoxicity. Lycopene, a carotenoid compound, is a potent antioxidant with demonstrated neuroprotective properties in several experimental models of oxidative damage. The present study was designed to investigate whether lycopene could provide protective effects against MeHg-induced neurotoxicity in cultured rat cerebellar granule neurons (CGNs). The cultured CGNs were pretreated with different dose of lycopene for 2h, followed by the challenge with 500nM MeHg for 12h. It was found that MeHg exposure caused the loss of cell viability and the LDH release. Furthermore, we demonstrated that MeHg exposure significantly elevated intracellular reactive oxygen species generation and mitochondria-derived superoxide production, caused disruption of mitochondrial membrane potential and opening of mPTP, inhibited mitochondrial complex enzyme activities (complex III and complex IV), reduced ATP generation and decreased mtDNA copy numbers and mtDNA transcript levels. However, each of these oxidative damages was efficiently attenuated by lycopene pretreatment. Collectively, these results suggest that lycopene affords protection against MeHg-induced neurotoxicity in CGNs, and these beneficial effects of lycopene may be attributable to its roles in preventing mitochondrial dysfunction.
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Affiliation(s)
- Mingyue Qu
- Center for Health Protection of the Second Artillery Force of PLA, Beijing 100071, PR China.
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45
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Eibl C, Tomassoli I, Munoz L, Stokes C, Papke RL, Gündisch D. The 3,7-diazabicyclo[3.3.1]nonane scaffold for subtype selective nicotinic acetylcholine receptor (nAChR) ligands. Part 1: the influence of different hydrogen bond acceptor systems on alkyl and (hetero)aryl substituents. Bioorg Med Chem 2013; 21:7283-308. [PMID: 24156938 DOI: 10.1016/j.bmc.2013.09.059] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 09/15/2013] [Accepted: 09/24/2013] [Indexed: 12/21/2022]
Abstract
3,7-Diazabicyclo[3.3.1]nonane is a naturally occurring scaffold interacting with nicotinic acetylcholine receptors (nAChRs). When one nitrogen of the 3,7-diazabicyclo[3.3.1]nonane scaffold was implemented in a carboxamide motif displaying a hydrogen bond acceptor (HBA) functionality, compounds with higher affinities and subtype selectivity for α4β2(∗) were obtained. The nature of the HBA system (carboxamide, sulfonamide, urea) had a strong impact on nAChR interaction. High affinity ligands for α4β2(∗) possessed small alkyl chains, small un-substituted hetero-aryl groups or para-substituted phenyl ring systems along with a carboxamide group. Electrophysiological responses of selected 3,7-diazabicyclo[3.3.1]nonane derivatives to Xenopus oocytes expressing various nAChR subtypes showed diverse activation profiles. Compounds with strongest agonistic profiles were obtained with small alkyl groups whereas a shift to partial agonism/antagonism was observed for aryl substituents.
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Affiliation(s)
- Christoph Eibl
- Pharmaceutical Institute, Pharmaceutical Chemistry I, University of Bonn, An der Immenburg 4, D-533121 Bonn, Germany; Department of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai'i at Hilo, 34 Rainbow Drive, Hilo, HI 96720, USA
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46
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Vo QV, Trenerry C, Rochfort S, Wadeson J, Leyton C, Hughes AB. Synthesis and anti-inflammatory activity of aromatic glucosinolates. Bioorg Med Chem 2013; 21:5945-54. [PMID: 23978357 DOI: 10.1016/j.bmc.2013.07.049] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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: 01/16/2013] [Revised: 07/19/2013] [Accepted: 07/30/2013] [Indexed: 11/26/2022]
Abstract
Aromatic GLs are important members of the glucosinolate family of compounds because of their potential biological activity and medicinal properties. This study has shown success in the high yielding synthesis of some important aromatic GLs as well as the results of testing for anti-inflammatory properties of the synthetic GLs. 3,4-Dimethoxyphenylglucosinolate was found to be the most active anti-inflammatory of the seven glucosinolates assayed.
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Affiliation(s)
- Quan V Vo
- Department of Chemistry, La Trobe University, Victoria 3086, Australia
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47
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Conconi MT, Marzaro G, Urbani L, Zanusso I, Di Liddo R, Castagliuolo I, Brun P, Tonus F, Ferrarese A, Guiotto A, Chilin A. Quinazoline-based multi-tyrosine kinase inhibitors: synthesis, modeling, antitumor and antiangiogenic properties. Eur J Med Chem 2013. [PMID: 23900004 DOI: 10.1016/j.ejmech.2013.06.057.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
In this work the synthesis and the biological evaluation of some novel anilinoquinazoline derivatives carrying modifications in the quinazoline scaffold and in the aniline moiety were reported. Preliminary cytotoxicity studies identified three derivatives, carrying dioxygenated rings fused on the quinazoline portion and the biphenylamino substituent as aniline portion, as the most effective compounds. Further investigations revealed that these compounds exhibited antiproliferative activity on a wide panel of human tumor cell lines through the inhibition of both receptor and nonreceptor TKs. Furthermore, the compound bearing the dioxolane nucleus was also able to inhibit in vivo tumor growth. Molecular modeling of these compounds into kinase domain suggested that the phenyl group allows favorable interaction energies with the target proteins: this feature is favored by fused dioxygenated ring at the 6,7 positions, whereas free rotating functions do not allow the correct placement of the molecule, thus impairing the inhibitory potency. Finally, the biphenylamino derivatives, at noncytotoxic concentrations, acted as antiangiogenic agents both in in vitro and in vivo assays.
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Affiliation(s)
- Maria Teresa Conconi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via Marzolo 5, 35131 Padova, Italy
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48
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Ares AM, Nozal MJ, Bernal J. Extraction, chemical characterization and biological activity determination of broccoli health promoting compounds. J Chromatogr A 2013; 1313:78-95. [PMID: 23899380 DOI: 10.1016/j.chroma.2013.07.051] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/25/2013] [Accepted: 07/11/2013] [Indexed: 12/11/2022]
Abstract
Broccoli (Brassica oleracea L. var. Italica) contains substantial amount of health-promoting compounds such as vitamins, glucosinolates, phenolic compounds, and dietary essential minerals; thus, it benefits health beyond providing just basic nutrition, and consumption of broccoli has been increasing over the years. This review gives an overview on the extraction and separation techniques, as well as the biological activity of some of the above mentioned compounds which have been published in the period January 2008 to January 2013. The work has been distributed according to the different families of health promoting compounds discussing the extraction procedures and the analytical techniques employed for their characterization. Finally, information about the different biological activities of these compounds has been also provided.
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49
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Alleti R, Vagner J, Dehigaspitiya DC, Moberg VE, Elshan NGRD, Tafreshi NK, Brabez N, Weber CS, Lynch RM, Hruby VJ, Gillies RJ, Morse DL, Mash EA. Synthesis and characterization of time-resolved fluorescence probes for evaluation of competitive binding to melanocortin receptors. Bioorg Med Chem 2013; 21:5029-38. [PMID: 23890524 DOI: 10.1016/j.bmc.2013.06.052] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/14/2013] [Accepted: 06/22/2013] [Indexed: 11/28/2022]
Abstract
Probes for use in time-resolved fluorescence competitive binding assays at melanocortin receptors based on the parental ligands MSH(4), MSH(7), and NDP-α-MSH were prepared by solid phase synthesis methods, purified, and characterized. The saturation binding of these probes was studied using HEK-293 cells engineered to overexpress the human melanocortin 4 receptor (hMC4R) as well as the human cholecystokinin 2 receptor (hCCK2R). The ratios of non-specific binding to total binding approached unity at high concentrations for each probe. At low probe concentrations, receptor-mediated binding and uptake was discernable, and so probe concentrations were kept as low as possible in determining Kd values. The Eu-DTPA-PEGO-MSH(4) probe exhibited low specific binding relative to non-specific binding, even at low nanomolar concentrations, and was deemed unsuitable for use in competition binding assays. The Eu-DTPA-PEGO probes based on MSH(7) and NDP-α-MSH exhibited Kd values of 27±3.9nM and 4.2±0.48nM, respectively, for binding with hMC4R. These probes were employed in competitive binding assays to characterize the interactions of hMC4R with monovalent and divalent MSH(4), MSH(7), and NDP-α-MSH constructs derived from squalene. Results from assays with both probes reflected only statistical enhancements, suggesting improper ligand spacing on the squalene scaffold for the divalent constructs. The Ki values from competitive binding assays that employed the MSH(7)-based probe were generally lower than the Ki values obtained when the probe based on NDP-α-MSH was employed, which is consistent with the greater potency of the latter probe. The probe based on MSH(7) was also competed with monovalent, divalent, and trivalent MSH(4) constructs that previously demonstrated multivalent binding in competitive binding assays against a variant of the probe based on NDP-α-MSH. Results from these assays confirm multivalent binding, but suggest a more modest increase in avidity for these MSH(4) constructs than was previously reported.
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Key Words
- 1-(9H-fluoren-9-yl)-3,19-dioxo-2,8,11,14,21-pentaoxa-4,18-diazatricosan-23-oic acid
- 1-hydroxybenzotriazole
- 19-amino-5-oxo-3,10,13,16-tetraoxa-6-azanonadecan-1-oic acid
- 6-chloro-1-hydroxybenzotriazole
- 9-fluorenylmethyoxycarbonyl
- Ac-Ser-Tyr-Ser-Nle-Glu-His-DPhe-Arg-Trp-Gly-Lys-Pro-Val-NH(2)
- BSA
- Cl-HOBt
- Competition binding assays
- CuAAC
- DCM
- DIC
- DIEA
- DMEM
- DMF
- DMSO
- DTPA
- Dulbecco’s Modified Eagle Medium
- ESI MS
- FT-ICR MS
- Fluorescent probes
- Fmoc
- Fmoc-PEGO
- Fourier transform ion cyclotron resonance mass spectrometry
- HOBt
- HRMS
- His-DPhe-Arg-Trp
- IC(50)
- MEM
- MSH(4)
- MSH(7)
- Melanocortin 4 receptor
- Minimum Essential Medium
- N,N-dimethylformamide
- NDP-α-MSH
- PEGO
- Saturation binding assays
- Ser-Nle-Glu-His-DPhe-Arg-Trp
- TBTA
- TEAA
- TFA
- THF
- TLC
- TRF
- Time-resolved fluorescence
- bovine serum albumin
- copper(I)-catalyzed azide-alkyne cycloaddition
- dichloromethane
- diethylenetriaminepentaacetic acid
- diisopropyl carbodiimide
- diisopropylethylamine
- dimethyl sulfoxide
- electrospray ionization mass spectrometry
- hMC4R
- half maximal inhibitory concentration
- high resolution mass spectroscopy
- human melanocortin 4 receptor
- tetrahydrofuran
- thin-layer chromatography
- time-resolved fluorescence
- triethylammonium acetate
- trifluoroacetic acid
- tris[(1-benzyl-1H-1,2,3-triazol-4-yl)methyl]amine
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Affiliation(s)
- Ramesh Alleti
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ 85721-0041, USA
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50
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Li X. Solvent effects and improvements in the deoxyribose degradation assay for hydroxyl radical-scavenging. Food Chem 2013; 141:2083-8. [PMID: 23870931 DOI: 10.1016/j.foodchem.2013.05.084] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [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: 10/17/2012] [Revised: 03/30/2013] [Accepted: 05/08/2013] [Indexed: 10/26/2022]
Abstract
The deoxyribose degradation assay is widely used to evaluate the hydroxyl (OH) radical-scavenging ability of food or medicines. We compared the hydroxyl radical-scavenging activity of 25 antioxidant samples prepared in ethanol solution with samples prepared after removing the ethanol (residue). The data suggested that there was an approximately 9-fold difference between assay results for the ethanol solution and residue samples. This indicated a strong alcoholic interference. To further study the mechanism, the scavenging activities of 18 organic solvents (including ethanol) were measured by the deoxyribose assay. Most pure organic solvents (especially alcohols) could effectively scavenge hydroxyl radicals. As hydroxyl radicals have extremely high reactivities, they will quickly react with surrounding solvent molecules. This shows that any organic solvent should be completely evaporated before measurement. The proposed method is regarded as a reliable hydroxyl radical-scavenging assay, suitable for all types of antioxidants.
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Affiliation(s)
- Xican Li
- School of Chinese Herbal Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China.
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