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Amaral LMPF, Moniz T, Silva AMN, Rangel M. Vanadium Compounds with Antidiabetic Potential. Int J Mol Sci 2023; 24:15675. [PMID: 37958659 PMCID: PMC10650557 DOI: 10.3390/ijms242115675] [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: 09/14/2023] [Revised: 10/19/2023] [Accepted: 10/24/2023] [Indexed: 11/15/2023] Open
Abstract
Over the last four decades, vanadium compounds have been extensively studied as potential antidiabetic drugs. With the present review, we aim at presenting a general overview of the most promising compounds and the main results obtained with in vivo studies, reported from 1899-2023. The chemistry of vanadium is explored, discussing the importance of the structure and biochemistry of vanadate and the impact of its similarity with phosphate on the antidiabetic effect. The spectroscopic characterization of vanadium compounds is discussed, particularly magnetic resonance methodologies, emphasizing its relevance for understanding species activity, speciation, and interaction with biological membranes. Finally, the most relevant studies regarding the use of vanadium compounds to treat diabetes are summarized, considering both animal models and human clinical trials. An overview of the main hypotheses explaining the biological activity of these compounds is presented, particularly the most accepted pathway involving vanadium interaction with phosphatase and kinase enzymes involved in the insulin signaling cascade. From our point of view, the major discoveries regarding the pharmacological action of this family of compounds are not yet fully understood. Thus, we still believe that vanadium presents the potential to help in metabolic control and the clinical management of diabetes, either as an insulin-like drug or as an insulin adjuvant. We look forward to the next forty years of research in this field, aiming to discover a vanadium compound with the desired therapeutic properties.
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Affiliation(s)
- Luísa M. P. F. Amaral
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 40169-007 Porto, Portugal; (L.M.P.F.A.); (T.M.)
| | - Tânia Moniz
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 40169-007 Porto, Portugal; (L.M.P.F.A.); (T.M.)
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - André M. N. Silva
- LAQV, REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, s/n, 40169-007 Porto, Portugal; (L.M.P.F.A.); (T.M.)
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Maria Rangel
- LAQV, REQUIMTE, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
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James Abraham J, Moossa B, Tariq HA, Kahraman R, Al-Qaradawi S, Shakoor RA. Electrochemical Performance of Na 3V 2(PO 4) 2F 3 Electrode Material in a Symmetric Cell. Int J Mol Sci 2021; 22:12045. [PMID: 34769476 PMCID: PMC8584735 DOI: 10.3390/ijms222112045] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/03/2021] [Accepted: 11/05/2021] [Indexed: 11/16/2022] Open
Abstract
A NASICON-based Na3V2(PO4)2F3 (NVPF) cathode material is reported herein as a potential symmetric cell electrode material. The symmetric cell was active from 0 to 3.5 V and showed a capacity of 85 mAh/g at 0.1 C. With cycling, the NVPF symmetric cell showed a very long and stable cycle life, having a capacity retention of 61% after 1000 cycles at 1 C. The diffusion coefficient calculated from cyclic voltammetry (CV) and the galvanostatic intermittent titration technique (GITT) was found to be ~10-9-10-11, suggesting a smooth diffusion of Na+ in the NVPF symmetric cell. The electrochemical impedance spectroscopy (EIS) carried out during cycling showed increases in bulk resistance, solid electrolyte interphase (SEI) resistance, and charge transfer resistance with the number of cycles, explaining the origin of capacity fade in the NVPF symmetric cell. Finally, the postmortem analysis of the symmetric cell after 1000 cycles at a 1 C rate indicated that the intercalation/de-intercalation of sodium into/from the host structure occurred without any major structural destabilization in both the cathode and anode. However, there was slight distortion in the cathode structure observed, which resulted in capacity loss of the symmetric cell. The promising electrochemical performance of NVPF in the symmetric cell makes it attractive for developing long-life and cost-effective batteries.
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Affiliation(s)
- Jeffin James Abraham
- Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar; (J.J.A.); (B.M.); (H.A.T.)
| | - Buzaina Moossa
- Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar; (J.J.A.); (B.M.); (H.A.T.)
| | - Hanan Abdurehman Tariq
- Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar; (J.J.A.); (B.M.); (H.A.T.)
| | - Ramazan Kahraman
- Department of Chemical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Siham Al-Qaradawi
- Department of Chemistry & Earth Sciences, College of Arts and Science, Qatar University, Doha P.O. Box 2713, Qatar;
| | - R. A. Shakoor
- Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar; (J.J.A.); (B.M.); (H.A.T.)
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Liang S, Liu B, Xiao X, Yuan M, Yang L, Ma P, Cheng Z, Lin J. A Robust Narrow Bandgap Vanadium Tetrasulfide Sonosensitizer Optimized by Charge Separation Engineering for Enhanced Sonodynamic Cancer Therapy. Adv Mater 2021; 33:e2101467. [PMID: 34296464 DOI: 10.1002/adma.202101467] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/19/2021] [Indexed: 06/13/2023]
Abstract
The development and optimization of sonosensitizers for elevating intratumoral reactive oxygen species (ROS) are definitely appealing in current sonodynamic therapy (SDT). Given this, branched vanadium tetrasulfide (VS4 ) nanodendrites with a narrower bandgap (compared with the most extensively explored sonosensitizers) are presented as a new source of sonosensitizer, which allows a more effortless separation of sono-triggered electron-hole pairs for ROS generation. Specifically, platinum (Pt) nanoparticles and endogenous high levels of glutathione (GSH) are rationally engineered to further optimize its sono-sensitized performance. As cocatalyst, Pt is conducive to trapping electrons, whereas GSH, as a natural hole-scavenger, tends to capture holes. Compared with the pristine VS4 sonosensitizer, the GSH-Pt-VS4 nanocomposite can greatly prolong the lifetime of the charge and confer a highly efficacious ROS production activity. Furthermore, such nanoplatforms are capable of reshaping tumor microenvironments to realize ROS overproduction, contributed by overcoming tumor hypoxia to improve SDT-triggered singlet oxygen production, catalyzing endogenic hydrogen peroxide into destructive hydroxyl radicals for chemodynamic therapy, and depleting GSH to amplify intratumoral oxidative stress. All these combined effects result in a significantly efficient tumor suppression outcome. This study enriches sonosensitizer research and proves that sonosensitizers can be rationally optimized by charge separation engineering strategy.
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Affiliation(s)
- Shuang Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Bin Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Xiao Xiao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Meng Yuan
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Ling Yang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Ping'an Ma
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Ziyong Cheng
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- University of Science and Technology of China, Hefei, 230026, China
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Oh S, Shi Y, Del Valle J, Salev P, Lu Y, Huang Z, Kalcheim Y, Schuller IK, Kuzum D. Energy-efficient Mott activation neuron for full-hardware implementation of neural networks. Nat Nanotechnol 2021; 16:680-687. [PMID: 33737724 PMCID: PMC8627686 DOI: 10.1038/s41565-021-00874-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 02/02/2021] [Indexed: 05/09/2023]
Abstract
To circumvent the von Neumann bottleneck, substantial progress has been made towards in-memory computing with synaptic devices. However, compact nanodevices implementing non-linear activation functions are required for efficient full-hardware implementation of deep neural networks. Here, we present an energy-efficient and compact Mott activation neuron based on vanadium dioxide and its successful integration with a conductive bridge random access memory (CBRAM) crossbar array in hardware. The Mott activation neuron implements the rectified linear unit function in the analogue domain. The neuron devices consume substantially less energy and occupy two orders of magnitude smaller area than those of analogue complementary metal-oxide semiconductor implementations. The LeNet-5 network with Mott activation neurons achieves 98.38% accuracy on the MNIST dataset, close to the ideal software accuracy. We perform large-scale image edge detection using the Mott activation neurons integrated with a CBRAM crossbar array. Our findings provide a solution towards large-scale, highly parallel and energy-efficient in-memory computing systems for neural networks.
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Affiliation(s)
- Sangheon Oh
- Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA, USA
| | - Yuhan Shi
- Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA, USA
| | - Javier Del Valle
- Department of Physics, University of California San Diego, La Jolla, CA, USA
| | - Pavel Salev
- Department of Physics, University of California San Diego, La Jolla, CA, USA
| | - Yichen Lu
- Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA, USA
| | - Zhisheng Huang
- Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA, USA
| | - Yoav Kalcheim
- Department of Physics, University of California San Diego, La Jolla, CA, USA
| | - Ivan K Schuller
- Department of Physics, University of California San Diego, La Jolla, CA, USA
| | - Duygu Kuzum
- Electrical and Computer Engineering Department, University of California San Diego, La Jolla, CA, USA.
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Tominov RV, Vakulov ZE, Avilov VI, Khakhulin DA, Polupanov NV, Smirnov VA, Ageev OA. The Effect of Growth Parameters on Electrophysical and Memristive Properties of Vanadium Oxide Thin Films. Molecules 2020; 26:E118. [PMID: 33383898 PMCID: PMC7795261 DOI: 10.3390/molecules26010118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/22/2020] [Accepted: 12/25/2020] [Indexed: 11/23/2022] Open
Abstract
We have experimentally studied the influence of pulsed laser deposition parameters on the morphological and electrophysical parameters of vanadium oxide films. It is shown that an increase in the number of laser pulses from 10,000 to 60,000 and an oxygen pressure from 3 × 10-4 Torr to 3 × 10-2 Torr makes it possible to form vanadium oxide films with a thickness from 22.3 ± 4.4 nm to 131.7 ± 14.4 nm, a surface roughness from 7.8 ± 1.1 nm to 37.1 ± 11.2 nm, electron concentration from (0.32 ± 0.07) × 1017 cm-3 to (42.64 ± 4.46) × 1017 cm-3, electron mobility from 0.25 ± 0.03 cm2/(V·s) to 7.12 ± 1.32 cm2/(V·s), and resistivity from 6.32 ± 2.21 Ω·cm to 723.74 ± 89.21 Ω·cm. The regimes at which vanadium oxide films with a thickness of 22.3 ± 4.4 nm, a roughness of 7.8 ± 1.1 nm, and a resistivity of 6.32 ± 2.21 Ω·cm are obtained for their potential use in the fabrication of ReRAM neuromorphic systems. It is shown that a 22.3 ± 4.4 nm thick vanadium oxide film has the bipolar effect of resistive switching. The resistance in the high state was (89.42 ± 32.37) × 106 Ω, the resistance in the low state was equal to (6.34 ± 2.34) × 103 Ω, and the ratio RHRS/RLRS was about 14,104. The results can be used in the manufacture of a new generation of micro- and nanoelectronics elements to create ReRAM of neuromorphic systems based on vanadium oxide thin films.
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Affiliation(s)
- Roman V. Tominov
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
| | - Zakhar E. Vakulov
- Federal Research Centre The Southern Scientific Centre of the Russian Academy of Sciences, 344006 Rostov-on-Don, Russia;
| | - Vadim I. Avilov
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
| | - Daniil A. Khakhulin
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
| | - Nikita V. Polupanov
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
| | - Vladimir A. Smirnov
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
| | - Oleg A. Ageev
- Institute of Nanotechnologies, Electronics and Electronic Equipment Engineering, Southern Federal University, 347922 Taganrog, Russia; (R.V.T.); (V.I.A.); (D.A.K.); (N.V.P.); (O.A.A.)
- Research and Education Center “Nanotechnologies” at the Southern Federal University, Southern Federal University, 347922 Taganrog, Russia
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Li Z, Chen J, Chen L, Guo M, Wu Y, Wei Y, Wang J, Wang X. Hollow Au/Polypyrrole Capsules to Form Porous and Neural Network-Like Nanofibrous Film for Wearable, Super-Rapid, and Ultrasensitive NH 3 Sensor at Room Temperature. ACS Appl Mater Interfaces 2020; 12:55056-55063. [PMID: 33232105 DOI: 10.1021/acsami.0c15585] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 05/27/2023]
Abstract
Wearable conducting polymer-based NH3 sensors are highly desirable in real-time environmental monitoring and human health protection but still a challenge for their relatively long response/recovery time and moderate sensitivity at room temperature. Herein, we present an effective route to fulfill this challenge by constructing porous and neural network-like Au/polypyrrole (Au/PPy) electrospun nanofibrous film with hollow capsular units for NH3 sensor. Taking the unique architecture and synergistic effect between Au and PPy, our sensor exhibits not only super-rapid response/recovery time (both ∼7 s), faster than all reported sensors, but also stable and ultrahigh sensitivity (response reaches ∼2.3 for 1 ppm NH3) at room temperature even during repeated deformation. Furthermore, good selectivity has been also achieved. These outstanding properties make our sensor hold great potential in real-time NH3-related disease diagnosis and environmental monitoring at room temperature.
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Affiliation(s)
- Zhenyu Li
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China
- Chengdu Evermaterials Co., Ltd., Chengdu, Sichuan 610500, China
| | - Jingyu Chen
- Chengdu Evermaterials Co., Ltd., Chengdu, Sichuan 610500, China
- Institute for Frontier Materials, Deakin University, Locked Bag 2000, Geelong, Victoria 3220, Australia
| | - Li Chen
- School of Pharmacy, Chengdu Medical College, Chengdu, Sichuan 610500, China
| | - Meiling Guo
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China
| | - Yuanpeng Wu
- The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, Sichuan, China
- Chengdu Evermaterials Co., Ltd., Chengdu, Sichuan 610500, China
| | - Yen Wei
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jinfeng Wang
- Institute for Frontier Materials, Deakin University, Locked Bag 2000, Geelong, Victoria 3220, Australia
| | - Xungai Wang
- Institute for Frontier Materials, Deakin University, Locked Bag 2000, Geelong, Victoria 3220, Australia
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Lei H, Wang X, Bai S, Gong F, Yang N, Gong Y, Hou L, Cao M, Liu Z, Cheng L. Biodegradable Fe-Doped Vanadium Disulfide Theranostic Nanosheets for Enhanced Sonodynamic/Chemodynamic Therapy. ACS Appl Mater Interfaces 2020; 12:52370-52382. [PMID: 33196160 DOI: 10.1021/acsami.0c14647] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [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: 06/11/2023]
Abstract
Sonodynamic therapy (SDT), a noninvasive and highly penetrating tumor therapy, which employs ultrasound and sonosensitizers, has attracted extensive attention because of its ability to treat deep tumors. However, many current sonosensitizers have drawbacks in phototoxicity and limited sonodynamic effect. Herein, as a novel kind of sonosensitizer, iron-doped vanadium disulfide nanosheets (Fe-VS2 NSs) are constructed by a high-temperature organic-solution method and further modified with polyethylene glycol (PEG). With Fe doping, the sonodynamic effect of Fe-VS2 NSs is greatly enhanced, owing to the prolonged electron-hole recombination time. Simultaneously, such Fe-VS2-PEG NSs as a good Fenton agent can be utilized for chemodynamic therapy (CDT) by using the endogenous H2O2 in the tumor microenvironment (TME). Moreover, the multivalent Fe and V elements in the Fe-VS2 NSs can consume glutathione to amplify the reactive oxygen species-induced oxidative stress by SDT and CDT. Utilizing the strong near-infrared optical absorbance and enhanced magnetic resonance (MR) contrast by Fe-VS2 NSs, photoacoustic/MR biomodal imaging reveals a high accumulation of Fe-VS2-PEG NSs in the tumor. The great tumor suppression effect is then achieved by the in vivo combined CDT&SDT treatment. Importantly, most of the injected Fe-VS2-PEG NSs can be gradually decomposed and excreted from the mice, making them as safe sonosensitizers for cancer treatment. Our work highlights a new type of biodegradable sonosensitizer with the ability of regulating TME for applications in cancer theranostics.
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Affiliation(s)
- Huali Lei
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Xianwen Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Shang Bai
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Fei Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Nailin Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Yuehan Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Linqian Hou
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Ming Cao
- Key Laboratory of Environment-Friendly Polymeric Materials of Anhui Province, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Zhuang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
| | - Liang Cheng
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, P. R. China
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Tian L, Zhang Y, Wang L, Geng Q, Liu D, Duan L, Wang Y, Cui J. Ratiometric Dual Signal-Enhancing-Based Electrochemical Biosensor for Ultrasensitive Kanamycin Detection. ACS Appl Mater Interfaces 2020; 12:52713-52720. [PMID: 33170623 DOI: 10.1021/acsami.0c15898] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [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: 06/11/2023]
Abstract
Based on the signal amplification elements of planar VS2/AuNPs nanocomposites and CoFe2O4 nanozyme, we herein developed an electrochemical biosensor for sensitive kanamycin (Kana) quantification. A ratiometric sensing platform was presented by incorporating VS2/AuNPs nanocomposites as a support material with excellent conductivity and high specific surface area, as well as hairpin DNA (hDNA) with complementary hybridization of biotinylated Kana-aptamer. In addition, streptavidin-functionalized CoFe2O4 nanozyme with superior peroxidase-like catalytic activity were immobilized onto the aptasensor, hence the peroxidase-like catalytic reaction could yield amplified electrochemical signals. With the presence of Kana, the aptamer-biorecognition resulted in a quantitative decrease of nanozyme accumulation and an increase of methylene blue response. Under optimal conditions, the electrochemical signal ratio of the aptasensor revealed a linear relation along with the logarithmic concentration of Kana from 1 pM to 1 μM, with the limit of detection reaching to 0.5 pM. Moreover, this aptasensor exhibited excellent precision, as well as high repeatability, hence possessing potentials in real samples and for diverse targets detection by easy replacement of the matched aptamer.
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Affiliation(s)
- Liang Tian
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Yi Zhang
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Liubo Wang
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Qingjun Geng
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Daxi Liu
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Lili Duan
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
| | - Yihong Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Jiansheng Cui
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, P. R. China
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Corona-Motolinia ND, Martínez-Valencia B, Noriega L, Sánchez-Gaytán BL, Méndez-Rojas MÁ, Melendez FJ, Castro ME, González-Vergara E. Synthesis, Crystal Structure, and Computational Methods of Vanadium and Copper Compounds as Potential Drugs for Cancer Treatment. Molecules 2020; 25:E4679. [PMID: 33066356 PMCID: PMC7587343 DOI: 10.3390/molecules25204679] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/23/2020] [Accepted: 10/02/2020] [Indexed: 12/24/2022] Open
Abstract
Transition metal-based compounds have shown promising uses as therapeutic agents. Among their unique characteristics, these compounds are suitable for interaction with specific biological targets, making them important potential drugs to treat various diseases. Copper compounds, of which Casiopeinas® are an excellent example, have shown promising results as alternatives to current cancer therapies, in part because of their intercalative properties with DNA. Vanadium compounds have been extensively studied for their pharmacological properties and application, mostly in diabetes, although recently, there is a growing interest in testing their activity as anti-cancer agents. In the present work, two compounds, [Cu(Metf)(bipy)Cl]Cl·2H2O and [Cu(Impy)(Gly)(H2O)]VO3, were obtained and characterized by visible and FTIR spectroscopies, single-crystal X-ray diffraction, and theoretical methods. The structural and electronic properties of the compounds were calculated through the density functional theory (DFT) using the Austin-Frisch-Petersson functional with dispersion APFD, and the 6-311 + G(2d,p) basis set. Non-covalent interactions were analyzed using Hirshfeld surface analysis (HSA) and atom in molecules analysis (AIM). Additionally, docking analysis to test DNA/RNA interactions with the Casiopeina-like complexes were carried out. The compounds provide metals that can interact with critical biological targets. In addition, they show interesting non-covalent interactions that are responsible for their supramolecular arrangements.
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Affiliation(s)
- Nidia D. Corona-Motolinia
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Beatriz Martínez-Valencia
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Lisset Noriega
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (L.N.); (F.J.M.)
| | - Brenda L. Sánchez-Gaytán
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Miguel Ángel Méndez-Rojas
- Departamento de Ciencias Químico Biológicas, Universidad de las Américas. Puebla, Sta. Catarina Mártir, Cholula Puebla C.P. 72820, Mexico;
| | - Francisco J. Melendez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (L.N.); (F.J.M.)
| | - María Eugenia Castro
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
| | - Enrique González-Vergara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 18 sur y Av. San Claudio, Col. San Manuel, Puebla C. P. 72570, Mexico; (N.D.C.-M.); (B.M.-V.); (B.L.S.-G.)
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10
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Singh AK, Yadav AN, Srivastav S, Jaiswal RK, Srivastava A, Mondal AC, Singh K. CdSe- Reduced graphene oxide nanocomposite toxicity alleviation via V 2O 5 shell formation over CdSe core: in vivo and in vitro studies. Nanotechnology 2020; 31:415101. [PMID: 32311687 DOI: 10.1088/1361-6528/ab8b0f] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present article demonstrates the synthesis of the nanocomposite of reduced graphene oxide (rGO) with CdSe and CdSe/V2O5 core/shell quantum dots by a two-step facile synthesis approach and subsequently studies their relative biocompatibility in different cells. Various characterization techniques have been applied including transmission electron microscopy (TEM), an x-ray diffractometer (XRD) and Raman spectroscopy to confirm the successful formation of CdSe-rGO and CdSe/V2O5-rGO nanocomposites. The average sizes of CdSe and CdSe/V2O5 QDs have found to be ∼3 and 5.5 nm, respectively with a good dispersion over the surface of rGO nanosheets. A crystal phase change has occurred during the formation of the V2O5 shell over the surface of CdSe QDs and confirmed through XRD. Raman spectroscopy has shown some useful insight of the surface state of CdSe and consequent changes in the surface with V2O5 shell growth. Further, MTT and cell growth assays have been performed to analyze their biocompatibility in A549 and Hela cells with various concentrations of as-synthesized materials. Our results demonstrate the toxicity of CdSe-rGO nanocomposite to be substantially reduced by the growth of the V2O5 shell. The in vivo studies in Drosophila show a remarkable decrease in the reactive oxygen species (ROS) and apoptosis levels for a CdSe/V2O5-rGO composite as compared to a CdSe-rGO nanocomposite, which paves a promising pathway for the CdSe/V2O5-rGO nanocomposite to be used as an efficient biocompatible material.
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Affiliation(s)
- Ashwani Kumar Singh
- Center for Semiconductor and Nanotechnology Components, State University of Campinas, UNICAMP, Sao Paulo, Brazil. School of Physical Sciences, Jawaharlal Nehru University, New Delhi, India
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11
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Pooseekheaw P, Thongpan W, Panthawan A, Kantarak E, Sroila W, Singjai P. Porous V 2O 5/TiO 2 Nanoheterostructure Films with Enhanced Visible-Light Photocatalytic Performance Prepared by the Sparking Method. Molecules 2020; 25:E3327. [PMID: 32707984 PMCID: PMC7435749 DOI: 10.3390/molecules25153327] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 11/29/2022] Open
Abstract
Porous V2O5/TiO2 nanoheterostructure films with different atomic ratios of Ti/V (4:1, 2:1, 1:1, and 1:2) were synthesized by a sparking method for the first time. The sparking method, which is a simple and cost-effective process, can synthesize highly porous and composite films in one step. Field-emission scanning electron microscope (FE-SEM) images revealed the porosity morphology of all prepared samples. V2O5/TiO2 nanoheterostructure films were confirmed by Raman spectroscopy, high-resolution transmission electron microscopy (HRTEM), and X-ray photoelectron spectroscopy (XPS). The secondary particle size and band gap of the samples were highly correlated to the V2O5 proportion, resulting in enhanced visible-light absorbance. V2O5/TiO2 nanoheterostructure films at an atomic ratio of 1:1 showed the highest photocatalytic performance, which improved the degradation rate up to 24% compared to pure TiO2 film. It is believed that the formed nanoheterostructure and greater portion of V4+ ions are reflected by this ratio.
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Affiliation(s)
- Porntipa Pooseekheaw
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
- Ph.D’s Degree Program in Applied Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Winai Thongpan
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
- Ph.D’s Degree Program in Applied Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Arisara Panthawan
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
- Ph.D’s Degree Program in Applied Physics, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Ekkapong Kantarak
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
| | - Wattikon Sroila
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
| | - Pisith Singjai
- Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; (P.P.); (W.T.); (A.P.); (E.K.); (W.S.)
- Center of Excellence in Materials Science and Technology, Chiang Mai University, Chiang Mai 50200, Thailand
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12
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Campitelli P, Crucianelli M. On the Capability of Oxidovanadium(IV) Derivatives to Act as All-Around Catalytic Promoters Since the Prebiotic World. Molecules 2020; 25:molecules25133073. [PMID: 32640541 PMCID: PMC7412518 DOI: 10.3390/molecules25133073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/16/2022] Open
Abstract
For a long time the biological role of vanadium was not known, while now the possibility of using its derivatives as potential therapeutic agents has given rise to investigations on their probable side effects. Vanadium compounds may inhibit different biochemical processes and lead to a variety of toxic effects and serious diseases. But, on the other hand, vanadium is an essential element for life. In recent years, increasing evidence has been acquired on the possible roles of vanadium in the higher forms of life. Despite several biochemical and physiological functions that have been suggested for vanadium and notwithstanding the amount of the knowledge so far accumulated, it still does not have a clearly defined role in the higher forms of life. What functions could vanadium or its very stable oxidovanadium(IV) derivatives have had in the prebiotic world and in the origins of life? In this review, we have briefly tried to highlight the most useful aspects that can be taken into consideration to give an answer to this still unresolved question and to show the high versatility of the oxidovanadium(IV) group to act as promoter of several oxidation reactions when coordinated with a variety of ligands, including diketones like acylpyrazolones.
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Affiliation(s)
- Patrizio Campitelli
- School of Science and Technology, University of Camerino, via S. Agostino 1, 62032 Camerino (MC), Italy;
| | - Marcello Crucianelli
- Department of Physical and Chemical Sciences, University of L’Aquila, Via Vetoio, Coppito-Due, 67100 L’Aquila (AQ), Italy
- Correspondence: ; Tel.: +39-0862-433308
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13
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Abstract
Peroxidovanadium(V) and oxidovanadium(IV) compounds have been tested as peroxidase-similar compounds. Their catalytic performance was tested on phenol red and pyrogallol substrates. Bromination kinetic studies revealed Michaelis-Menten behavior with respect to phenol red for both complexes. Catalytic efficiency is ~ 104 M-1 min-1. Both vanadium complexes showed the capacity to oxidize pyrogallol, but only the oxidovanadium (IV) complex follows Michaelis-Menten kinetics with respect to this substrate (Km = 1.05 × 10-3 M). Peroxidovanadium(V) complex displayed a more complex mechanism, and further studies became necessary to elucidate it. The structure-activity relationship was also assessed.
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Affiliation(s)
- Juliana E Parente
- Center of Inorganic Chemistry (CEQUINOR, CONICET-CICPBA-UNLP)-Department of Chemistry-Faculty of Exact Sciences, National University of La Plata, Boulevard 120 e/60 y 64, 1900, B1900AVV, La Plata, Argentina
| | - Patricia A M Williams
- Center of Inorganic Chemistry (CEQUINOR, CONICET-CICPBA-UNLP)-Department of Chemistry-Faculty of Exact Sciences, National University of La Plata, Boulevard 120 e/60 y 64, 1900, B1900AVV, La Plata, Argentina
| | - Evelina G Ferrer
- Center of Inorganic Chemistry (CEQUINOR, CONICET-CICPBA-UNLP)-Department of Chemistry-Faculty of Exact Sciences, National University of La Plata, Boulevard 120 e/60 y 64, 1900, B1900AVV, La Plata, Argentina.
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14
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Toker O, Bilmez B, Kavanoz HB, Akçalı Ö, İçelli O. Comparison of ITO and ZnO ternary glassy composites in terms of radiation shielding properties by Monte Carlo N-particle transport code and BXCOM. Radiat Environ Biophys 2020; 59:283-293. [PMID: 32193598 DOI: 10.1007/s00411-020-00838-x] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 03/04/2020] [Indexed: 06/10/2023]
Abstract
In the present study, radiation shielding properties of two glassy composite materials that are widely used in electronics, photovoltaic applications, and sensor technology, were investigated in the photon energy range from 15 keV to 15 MeV. The materials chosen were (ITO)/V2O5/B2O3 and ZnO/V2O5/B2O3 including various concentrations of B2O3. Radiation interaction was simulated and shielding parameters calculated by means of the MCNP and BXCOM codes. More specifically, buildup factors, effective electron density ([Formula: see text]) and effective atomic number ([Formula: see text]) were calculated with BXCOM, while mass attenuation coefficients ([Formula: see text]), half-value layer (HVL) and tenth-value layer (TVL) values were calculated with MCNP. The results were compared with those obtained with the WinXCOM code, for validation. Acceptable and preferable results were obtained for both composites as alternative to other glassy shielding materials. The composite including ITO showed better shielding properties than the composite including ZnO. In terms of radiation shielding, both composites turned out to be better than concrete and close to lead.
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Affiliation(s)
- Ozan Toker
- Department of Physics, Science and Art Faculty, Yildiz Technical University, İstanbul, Turkey
| | - Bayram Bilmez
- Department of Physics, Science and Art Faculty, Yildiz Technical University, İstanbul, Turkey
| | - H Birtan Kavanoz
- Department of Physics, Science and Art Faculty, Yildiz Technical University, İstanbul, Turkey
| | - Özgür Akçalı
- Department of Physics, Science and Art Faculty, Yildiz Technical University, İstanbul, Turkey
| | - Orhan İçelli
- Department of Physics, Science and Art Faculty, Yildiz Technical University, İstanbul, Turkey.
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15
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Du J, Feng B, Dong Y, Zhao M, Yang X. Vanadium coordination compounds loaded on graphene quantum dots (GQDs) exhibit improved pharmaceutical properties and enhanced anti-diabetic effects. Nanoscale 2020; 12:9219-9230. [PMID: 32307476 DOI: 10.1039/d0nr00810a] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Vanadium compounds are promising anti-diabetic agents, and graphene quantum dots (GQDs) are emerging as potential drug delivery systems to improve drug solubility in water and membrane transport. Using highly dispersible and water-soluble GQDs, we herein prepared a novel GQD-VO (p-dmada) complex, in which vanadium coordination compounds [VO(p-dmada)] were packed closely on one side of the GQD sheets possibly via the π-π stacking mechanism. The in vitro tests showed that GQD-VO(p-dmada) exhibited membrane permeability (Papp) as good as that of GQDs with reduced cytotoxicity. In vivo tests on type 2 diabetic mice demonstrated that GQD-VO(p-dmada) exhibited a delayed glucose lowering profile but more profound effects on insulin enhancement and β-cell protection after three-week treatment compared to VO(p-dmada) alone. In addition, GQD alone was observed for the first time to effectively lower the blood lipid levels of the db/db mice. Overall, GQD-VO(p-dmada) showed improved pharmacokinetic performance and hypoglycemic effects, and using GQD as a nanoplatform for drug delivery may provide vast opportunities for the further design of metal-based pharmaceutical agents.
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Affiliation(s)
- Jiaojiao Du
- State Key laboratories of Natural and mimetic drugs and Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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16
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Das S, Roy A, Barui AK, Alabbasi MMA, Kuncha M, Sistla R, Sreedhar B, Patra CR. Anti-angiogenic vanadium pentoxide nanoparticles for the treatment of melanoma and their in vivo toxicity study. Nanoscale 2020; 12:7604-7621. [PMID: 32232245 DOI: 10.1039/d0nr00631a] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In recent days, vanadium complexes and nanoparticles have received sustainable attention owing to their vast applications in different fields. In the present study, we report a facile approach for the synthesis of irregular dumbbell shaped vanadium pentoxide nanoparticles (V2O5 NPs: 30-60 nm) via the polyol-induced microwave irradiation process along with calcination. The as-synthesized nanoparticles were characterized using various physico-chemical techniques (e.g. XRD, TEM, FT-IR, DLS and XPS). The cell viability assay showed that V2O5 NPs could efficiently inhibit the proliferation of different cancer cells (B16F10, A549, and PANC1), depicting their anti-proliferative activity. However, V2O5 NPs did not exert significant cytotoxicity to the normal cells (CHO, HEK-293 and NRK-49F), suggesting their biocompatible nature. Interestingly, these nanoparticles inhibited the proliferation and migration of the endothelial cells (HUVECs and EA.hy926) and disrupted the blood vasculature in a chick embryo model, indicating their anti-angiogenic properties. The mechanistic study revealed that the effective internalization of V2O5 NPs generated intracellular reactive oxygen species (ROS) which in turn up-regulated p53 protein and down-regulated survivin protein in cancer cells, leading to the apoptosis process. Furthermore, the administration of V2O5 NPs to melanoma bearing C57BL6/J mice significantly increased their survivability as compared to the control untreated tumor bearing mice, exhibiting the therapeutic potential of the nanoparticles against melanoma. Additionally, the in vivo toxicity study demonstrated no toxic effect in mice upon sub-chronic exposure to V2O5 NPs. Altogether, we strongly believe that V2O5 NPs could intrinsically provide a new direction for alternative therapeutic treatment strategies for melanoma and other cancers by employing their anti-angiogenic properties in the future.
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Affiliation(s)
- Sourav Das
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, Telangana State, India.
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17
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Ganganboina AB, Chowdhury AD, Khoris IM, Nasrin F, Takemura K, Hara T, Abe F, Suzuki T, Park EY. Dual modality sensor using liposome-based signal amplification technique for ultrasensitive norovirus detection. Biosens Bioelectron 2020; 157:112169. [PMID: 32250939 DOI: 10.1016/j.bios.2020.112169] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [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: 02/07/2020] [Revised: 03/10/2020] [Accepted: 03/21/2020] [Indexed: 12/22/2022]
Abstract
Sensitive and accurate detection methods for infectious viruses are the pressing need for effective disease diagnosis and treatment. Herein, based on V2O5 nanoparticles-encapsulated liposomes (VONP-LPs) we demonstrate a dual-modality sensing platform for ultrasensitive detection of the virus. The sensing performance relies on intrinsic peroxidase and electrochemical redox property of V2O5 nanoparticles (V2O5 NPs). The target-specific antibody-conjugated VONP-LPs and magnetic nanoparticles (MNPs) enrich the virus by magnetic separation and the separated VONP-LPs bound viruses are hydrolyzed to release the encapsulated V2O5 NPs. These released nanoparticles from captured liposomes act as peroxidase mimics and electrochemical redox indicator resulting in noticeable colorimetric and robust electrochemical dual-signal. Utilizing the superiority of dual-modality sensor with two quantitative analysis forms, norovirus like particles (NoV-LPs) can be detected by electrochemical signals with a wide linear range and low detection limit. To verify the applicability in real samples, norovirus (NoV) collected from actual clinical samples are effectively-identified with excellent accuracy. This proposed detection method can be a promising next-generation bioassay platform for early-stage diagnosis of virus disease and surveillance for public health.
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Affiliation(s)
- Akhilesh Babu Ganganboina
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Ankan Dutta Chowdhury
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Indra Memdi Khoris
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Fahmida Nasrin
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Kenshin Takemura
- Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
| | - Toshimi Hara
- Department of Microbiology, Shizuoka Institute of Environment and Hygiene, 4-27-2, Kita-ando, Aoi-ku, Shizuoka, 420-8637, Japan.
| | - Fuyuki Abe
- Department of Microbiology, Shizuoka Institute of Environment and Hygiene, 4-27-2, Kita-ando, Aoi-ku, Shizuoka, 420-8637, Japan.
| | - Tetsuro Suzuki
- Department of Infectious Diseases, Hamamatsu University School of Medicine, 1-20-1 Higashi-ku, Handa-yama, Hamamatsu, 431-3192, Japan.
| | - Enoch Y Park
- Research Institute of Green Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan; Department of Bioscience, Graduate School of Science and Technology, Shizuoka University, 836 Ohya Suruga-ku, Shizuoka, 422-8529, Japan.
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18
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Sahar S, Zeb A, Ling C, Raja A, Wang G, Ullah N, Lin XM, Xu AW. A Hybrid VO x Incorporated Hexacyanoferrate Nanostructured Hydrogel as a Multienzyme Mimetic via Cascade Reactions. ACS Nano 2020; 14:3017-3031. [PMID: 32105066 DOI: 10.1021/acsnano.9b07886] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 05/23/2023]
Abstract
Inspired by the cascade reactions occurring in micro-organelles of living systems, we have developed a hybrid hydrogel, a nanozyme that mimics three key enzymes including peroxidase, superoxide dismutase, and catalase. The organic/inorganic nanostructured hydrogel constituting VOx incorporated hexacyanoferrate Berlin green analogue complex (VOxBG) is prepared by a simple one-step hydrothermal process, and its composition, structure, and properties are thoroughly investigated. Polyvinylpyrrolidone, a low-cost and biocompatible polymer, was utilized as a scaffold to increase the surface area and dispersion of the highly active catalytic centers of the nanozyme. Compared to the widely used horseradish peroxidase in enzyme-linked immunosorbent assay, our VOxBG analogue hydrogel displays an excellent affinity toward the chromogenic substrate that is used in these peroxidase-based assays. This higher affinity makes it a competent nanozyme for detection and oxidation of biomolecules, including glucose, in a cascade-like system which can be further used for hydrogel photolithography. The VOxBG analogue hydrogel also holds a good ability for the rapid and efficient oxidative degradation of environmentally unfriendly recalcitrant substrates under light irradiation. Detailed mechanistic studies of this multifaceted material suggest that different complex catalytic processes and routes are involved in these photo-Fenton and Fenton reactions that are responsible for the generation as well as consumption of reactive oxygen species, which are effectively activated by a multienzyme mimetic of the VOxBG analogue hydrogel.
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Affiliation(s)
- Shafaq Sahar
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, The First Affiliated Hospital, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Akif Zeb
- School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Cong Ling
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, The First Affiliated Hospital, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Amna Raja
- Department of Environmental Medicine, New York University, New York, New York 10010, United States
| | - Gang Wang
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, The First Affiliated Hospital, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Naseeb Ullah
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, The First Affiliated Hospital, University of Science and Technology of China, Hefei 230026, Anhui, China
| | - Xiao-Ming Lin
- Key Laboratory for Energy Conversion and Storage, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China
| | - An-Wu Xu
- Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, The First Affiliated Hospital, University of Science and Technology of China, Hefei 230026, Anhui, China
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19
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Zeleke MA, Kuo DH. Synthesis and application of V 2O 5-CeO 2 nanocomposite catalyst for enhanced degradation of methylene blue under visible light illumination. Chemosphere 2019; 235:935-944. [PMID: 31561311 DOI: 10.1016/j.chemosphere.2019.06.230] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 05/27/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
Methylene blue dye is among the toxic, mutagenic, and carcinogenic pollutants. Hence, its treatment via photocatalytic degradation is an important remediation method for the sake of a healthy environment. Herein, the V2O5-CeO2 nanocomposite catalysts were synthesized via a simple precipitation-thermal decomposition approach and used for the photodegradation of methylene blue in the presence of H2O2 as an effective electron scavenger under visible light illumination. The nanocomposite catalysts were systematically characterized to investigate the effects of V2O5 with the aids of X-ray, morphology, light absorption, catalytic activity, and charge transfer properties of the nanocomposite catalysts. The VC-2 nanocomposite prepared with NH4VO3:CeO2 molar ratios at 0.15:1 was found to be the best efficient catalyst where ≥98% of methylene blue was degraded within 25 min irradiation time. From the kinetics analysis, its rate constant was found to be higher than those of the pure V2O5 and CeO2 catalysts by a factor of 12.0 and 13.5, respectively. The plausibly mechanistic elucidation of charge transfer and utilization of reactive species are conspicuous allegations of the combined effects of the nanocomposite catalyst, H2O2 sacrificial agent, and visible light for the photodegradation of the dye.
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Affiliation(s)
- Misganaw Alemu Zeleke
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan; Department of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Ethiopia
| | - Dong-Hau Kuo
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, No.43, Sec. 4, Keelung Road, Taipei, 10607, Taiwan.
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20
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Pisano M, Arru C, Serra M, Galleri G, Sanna D, Garribba E, Palmieri G, Rozzo C. Antiproliferative activity of vanadium compounds: effects on the major malignant melanoma molecular pathways. Metallomics 2019; 11:1687-1699. [PMID: 31490510 DOI: 10.1039/c9mt00174c] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Malignant melanoma (MM) is the most fatal skin cancer, whose incidence has critically increased in the last decades. Recent molecular therapies are giving excellent results in the remission of melanoma but often they induce drug resistance in patients limiting their therapeutic efficacy. The search for new compounds able to overcome drug resistance is therefore essential. Vanadium has recently been cited for its anticancer properties against several tumors, but only a few data regard its effect against MM. In a previous work we demonstrated the anticancer activity of four different vanadium species towards MM cell lines. The inorganic anion vanadate(v) (VN) and the oxidovanadium(iv) complex [VO(dhp)2] (VS2), where dhp is 1,2-dimethyl-3-hydroxy-4(1H)-pyridinonate, showed IC50 values of 4.7 and 2.6 μM, respectively, against the A375 MM cell line, causing apoptosis and cell cycle arrest. Here we demonstrate the involvement of Reactive Oxygen Species (ROS) production in the pro-apoptotic effect of these two V species and evaluate the activation of different cell cycle regulators, to investigate the molecular mechanisms involved in their antitumor activity. We establish that VN and VS2 treatments reduce the phosphorylation of extracellular-signal regulated kinase (ERK) by about 80%, causing the deactivation of the mitogen activated protein kinase (MAPK) pathway in A375 cells. VN and VS2 also induce dephosphorylation of the retinoblastoma protein (Rb) (VN 100% and VS2 90%), together with a pronounced increase of cyclin-dependent kinase inhibitor 1 p21 (p21Cip1) protein expression up to 1800%. Taken together, our results confirm the antitumor properties of vanadium against melanoma cells, highlighting its ability to induce apoptosis through generation of ROS and cell cycle arrest by counteracting MAPK pathway activation and strongly inducing p21Cip1 expression and Rb hypo-phosphorylation.
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Affiliation(s)
- Marina Pisano
- Istituto di Chimica Biomolecolare (ICB), Consiglio Nazionale delle Ricerche (CNR), Traversa La Crucca 3, 07100 Sassari, Italy.
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Treviño S, Díaz A, Sánchez-Lara E, Sanchez-Gaytan BL, Perez-Aguilar JM, González-Vergara E. Vanadium in Biological Action: Chemical, Pharmacological Aspects, and Metabolic Implications in Diabetes Mellitus. Biol Trace Elem Res 2019; 188:68-98. [PMID: 30350272 PMCID: PMC6373340 DOI: 10.1007/s12011-018-1540-6] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/01/2018] [Indexed: 12/12/2022]
Abstract
Vanadium compounds have been primarily investigated as potential therapeutic agents for the treatment of various major health issues, including cancer, atherosclerosis, and diabetes. The translation of vanadium-based compounds into clinical trials and ultimately into disease treatments remains hampered by the absence of a basic pharmacological and metabolic comprehension of such compounds. In this review, we examine the development of vanadium-containing compounds in biological systems regarding the role of the physiological environment, dosage, intracellular interactions, metabolic transformations, modulation of signaling pathways, toxicology, and transport and tissue distribution as well as therapeutic implications. From our point of view, the toxicological and pharmacological aspects in animal models and humans are not understood completely, and thus, we introduced them in a physiological environment and dosage context. Different transport proteins in blood plasma and mechanistic transport determinants are discussed. Furthermore, an overview of different vanadium species and the role of physiological factors (i.e., pH, redox conditions, concentration, and so on) are considered. Mechanistic specifications about different signaling pathways are discussed, particularly the phosphatases and kinases that are modulated dynamically by vanadium compounds because until now, the focus only has been on protein tyrosine phosphatase 1B as a vanadium target. Particular emphasis is laid on the therapeutic ability of vanadium-based compounds and their role for the treatment of diabetes mellitus, specifically on that of vanadate- and polioxovanadate-containing compounds. We aim at shedding light on the prevailing gaps between primary scientific data and information from animal models and human studies.
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Affiliation(s)
- Samuel Treviño
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
| | - Alfonso Díaz
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
| | - Eduardo Sánchez-Lara
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
| | - Brenda L. Sanchez-Gaytan
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
| | - Jose Manuel Perez-Aguilar
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
| | - Enrique González-Vergara
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, C.P. 72570 Puebla, PUE Mexico
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Kowalski S, Wyrzykowski D, Hac S, Rychlowski M, Radomski MW, Inkielewicz-Stepniak I. New Oxidovanadium(IV) Coordination Complex Containing 2-Methylnitrilotriacetate Ligands Induces Cell Cycle Arrest and Autophagy in Human Pancreatic Ductal Adenocarcinoma Cell Lines. Int J Mol Sci 2019; 20:E261. [PMID: 30634697 PMCID: PMC6358955 DOI: 10.3390/ijms20020261] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/01/2019] [Accepted: 01/04/2019] [Indexed: 12/28/2022] Open
Abstract
Pancreatic cancer is characterized by one of the lowest five-year survival rates. In search for new treatments, some studies explored several metal complexes as potential anticancer drugs. Therefore, we investigated three newly synthesized oxidovanadium(IV) complexes with 2-methylnitrilotriacetate (bcma3-), N-(2-carbamoylethyl)iminodiacetate (ceida3-) and N-(phosphonomethyl)-iminodiacetate (pmida4-) ligands as potential anticancer compounds using pancreatic cancer cell lines. We measured: Cytotoxicity using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), neutral red (NR) and lactate dehydrogenase (LDH) assay; antiproliferative activity by bromodeoxyuridine BrdU assay; reactive oxygen species (ROS) generation and cell cycle analysis by flow cytometry; protein level by Western blot and cellular morphology by confocal laser scanning microscopy. The results showed that these oxidovanadium(IV) complexes were cytotoxic on pancreatic cancer cells (PANC-1 and MIA PaCa2), but not on non-tumor human immortalized pancreas duct epithelial cells (hTERT-HPNE) over the concentration range of 10⁻25 μM, following 48 h incubation. Furthermore, molecular mechanisms of cytotoxicity of [4-NH₂-2-Me(Q)H][VO(bcma)(H₂O)]2H₂O (T1) were dependent on antiproliterative activity, increased ROS generation, cell cycle arrest in G2/M phase with simultaneous triggering of the p53/p21 pathway, binucleation, and induction of autophagy. Our study indicates that oxidovanadium(IV) coordination complexes containing 2-methylnitrilotriacetate ligand are good candidates for preclinical development of novel anticancer drugs targeting pancreatic cancer.
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Affiliation(s)
- Szymon Kowalski
- Department of Medical Chemistry, Medical University of Gdansk, 80-210 Gdansk, Poland.
| | | | - Stanislaw Hac
- Department of General, Endocrine and Transplantation Surgery, Medical University of Gdansk, 80-210 Gdansk, Poland.
| | - Michal Rychlowski
- Laboratory of Virus Molecular Biology, University of Gdansk-Medical University of Gdansk, Intercollegiate Faculty of Biotechnology, 80-307 Gdansk, Poland.
| | - Marek Witold Radomski
- Department of Anatomy, Physiology and Pharmacology, University of Saskatchewan, SK S7N 5E5, Saskatoon, Saskatchewan, Canada.
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Kongot M, Dohare N, Reddy DS, Pereira N, Patel R, Subramanian M, Kumar A. In vitro apoptosis-induction, antiproliferative and BSA binding studies of a oxidovanadium(V) complex. J Trace Elem Med Biol 2019; 51:176-190. [PMID: 30466929 DOI: 10.1016/j.jtemb.2018.10.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Revised: 10/06/2018] [Accepted: 10/19/2018] [Indexed: 12/15/2022]
Abstract
In our ongoing efforts to develop novel trace metal complexes with therapeutically interesting properties, a neutral mono nuclear oxidomethoxidovanadium(V) complex, [VVO(OCH3)(hpdbal-sbdt)] (1) and a μ-O bridged dinuclear oxidovanadium(V) complex, [{VVO(hpdbal-sbdt)}2μ-O] (2) [H2hpdbal-sbdt (I) is a tridentate and dibasic ONS2- donor ligand obtained through the Schiff base reaction of 2-hydroxy-5-(phenyldiazenyl)benzaldehyde (Hhpdbal) and S-benzyldithiocarbazate (Hsbdt)] have been synthesized and characterized by various analytical techniques such as TGA, EDS, ATR-IR, UV-Vis, CV, 1H NMR, 13C NMR and 51V NMR. Single-crystal X-ray diffraction analysis of 1 confirms the coordination of phenolate oxygen, imine nitrogen and thioenolate sulfur of the ligand to the vanadium center with a distorted tetragonal-pyramidal geometry. The compound 2 triggered apoptotic and reproductive death of the cancer cells in vitro with 76% and 62% growth inhibition of human breast adenocarcinoma (MCF-7) and human lung carcinoma cells (A549) respectively. The compound 2 was found to be sufficiently stable over a wide window of physiological pH. The complex 2 was studied further for its interaction with a drug carrier protein BSA with the aid of spectroscopic techniques viz. fluorescence, temperature controlled UV-vis and deconvoluted IR techniques.
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Affiliation(s)
- Manasa Kongot
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India
| | - Neeraj Dohare
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India; Department of Biochemistry, Daulat Ram College, University of Delhi, New Delhi, 110007, India
| | - Dinesh S Reddy
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India
| | - Neha Pereira
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Rajan Patel
- Biophysical Chemistry Laboratory, Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia (A Central University), New Delhi, 110025, India
| | - Mahesh Subramanian
- Bio-Organic Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Amit Kumar
- Centre for Nano and Material Sciences, Jain (Deemed-to-be University), Jain Global Campus, Jakkasandra Post, Bengaluru, 562112, Karnataka, India.
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24
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Xue Y, Wang Y. Effective industrial regeneration of arsenic poisoning waste selective catalytic reduction catalyst: contaminants removal and activity recovery. Environ Sci Pollut Res Int 2018; 25:34114-34122. [PMID: 30284165 DOI: 10.1007/s11356-018-3369-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 09/27/2018] [Indexed: 06/08/2023]
Abstract
In this work, an environmental friendly industrial regeneration approach has been proposed to remove the surface poisoning and recover the catalytic activity of waste V2O5-WO3/TiO2 catalyst. Alkaline treatment and acid wash are combined for the waste catalyst regeneration process, which is applied for the arsenic and alkali metal removal, respectively. The crystal structure was well maintained as anatase phase and the surface area was increased during the regeneration, which is favorable for the following active component addition step and regenerated process. The XPS results illustrated that the surface contaminants (arsenic and sodium) were removed and V(IV) was loaded on the regenerated catalyst. Based on the deNOx evaluations, the catalytic activity of the regenerated sample is increased to the level of commercial fresh catalyst. The present industrial regeneration process provides a promising method for the comprehensive recovery of waste catalyst and further understanding in the field of secondary resource recycle.
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Affiliation(s)
- Yudong Xue
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA.
| | - Yunting Wang
- School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China.
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25
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Du C, Ji L, Peng Y, Tang M, Cao X, Lu S. Catalytic decomposition of PCDD/Fs on a V 2O 5-WO 3/nano-TiO 2 catalyst: effect of NaCl. Environ Sci Pollut Res Int 2018; 25:15474-15483. [PMID: 29569197 DOI: 10.1007/s11356-018-1740-9] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 03/13/2018] [Indexed: 06/08/2023]
Abstract
The effect of NaCl addition on the properties, activity, and deactivation of a V2O5-WO3/nano-TiO2 catalyst was investigated during catalytic decomposition of gas-phase polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs). The extent of deactivation relates directly to the NaCl loading of the catalyst. Poisoning by sodium neutralizes acid sites, interacts strongly with active VOx species, and reduces the redox capacity of catalysts. In addition, NaCl is also a chlorine source and may actually accelerate the synthesis of new PCDD/Fs. Washing a catalyst with dilute sulfuric acid largely restores catalytic activity, breaking the interaction of Na+ ions and dispersed vanadia and removing Na from the catalyst surface. Consequently, catalyst acidity and redox capacity almost recover. Furthermore, sulfate residues react with surface adsorbed water to generate Brønsted acid sites, ensuing a surge of strong acidity of the catalysts.
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Affiliation(s)
- Cuicui Du
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Longjie Ji
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China.
- Beijing Construction Engineering Group Environmental Remediation Co., Ltd., Beijing, 100015, China.
| | - Yaqi Peng
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Minghui Tang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Xuan Cao
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China
| | - Shengyong Lu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, China.
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Abstract
Vanadium dioxide is a material that has a reversible metal-insulator phase change near 68 °C. To grow VO2 on a wide variety of substrates, with wafer-scale uniformity and angstrom level control of thickness, the method of atomic-layer deposition was chosen. This ALD process enables high-quality, low-temperature (≤150 °C) growth of ultrathin films (100-1000 Å) of VO2. For this demonstration, the VO2 films were grown on sapphire substrates. This low temperature growth technique produces mostly amorphous VO2 films. A subsequent anneal in an ultra-high vacuum chamber with a pressure of 7x10-4 Pa of ultra-high purity (99.999%) oxygen produced oriented, polycrystalline VO2 films. The crystallinity, phase, and strain of the VO2 were determined by Raman spectroscopy and X-ray diffraction, while the stoichiometry and impurity levels were determined by X-ray photoelectron spectroscopy, and finally the morphology was determined by atomic force microscopy. These data demonstrate the high-quality of the films grown by this technique. A model was created to fit to the data for VO2 in its metallic and insulating phases in the near infrared spectral region. The permittivity and refractive index of the ALD VO2 agreed well with the other fabrication methods in its insulating phase, but showed a difference in its metallic state. Finally, the analysis of the films' optical properties enabled the creation of a wavelength- and temperature-dependent model of the complex optical refractive index for developing VO2 as a tunable refractive index material.
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27
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Pang Q, Zhao Y, Yu Y, Bian X, Wang X, Wei Y, Gao Y, Chen G. VS 4 Nanoparticles Anchored on Graphene Sheets as a High-Rate and Stable Electrode Material for Sodium Ion Batteries. ChemSusChem 2018; 11:735-742. [PMID: 29205948 DOI: 10.1002/cssc.201702031] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 11/22/2017] [Indexed: 05/19/2023]
Abstract
The size and conductivity of the electrode materials play a significant role in the kinetics of sodium-ion batteries. Various characterizations reveal that size-controllable VS4 nanoparticles can be successfully anchored on the surface of graphene sheets (GSs) by a simple cationic-surfactant-assisted hydrothermal method. When used as an electrode material for sodium-ion batteries, these VS4 @GS nanocomposites show large specific capacity (349.1 mAh g-1 after 100 cycles), excellent long-term stability (84 % capacity retention after 1200 cycles), and high rate capability (188.1 mAh g-1 at 4000 mA g-1 ). A large proportion of the capacity was contributed by capacitive processes. This remarkable electrochemical performance was attributed to synergistic interactions between nanosized VS4 particles and a highly conductive graphene network, which provided short diffusion pathways for Na+ ions and large contact areas between the electrolyte and electrode, resulting in considerably improved electrochemical kinetic properties.
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Affiliation(s)
- Qiang Pang
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Yingying Zhao
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
| | - Yanhao Yu
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Xiaofei Bian
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
| | - Xudong Wang
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Yingjin Wei
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
| | - Yu Gao
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
| | - Gang Chen
- Kay Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, P.R. China
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Crans DC, Yang L, Haase A, Yang X. Health Benefits of Vanadium and Its Potential as an Anticancer Agent. Met Ions Life Sci 2018; 18:/books/9783110470734/9783110470734-015/9783110470734-015.xml. [PMID: 29394028 DOI: 10.1515/9783110470734-015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Vanadium compounds have been known to have beneficial therapeutic properties since the turn of the century, but it was not until 1965 when it was discovered that those effects could be extended to treating cancer. Some vanadium compounds can combat common markers of cancer, which include metabolic processes that are important to initiating and developing the phenotypes of cancer. It is appropriate to consider vanadium as a treatment option due to the similarities in some of the metabolic pathways utilized by both diabetes and cancer and therefore is among the few drugs that are effective against more than one disease. The development of vanadium compounds as protein phosphatase inhibitors for the treatment of diabetes may be useful for potential applications as an anticancer agent. Furthermore, the ability of vanadium to redox cycle is also important for biological properties and is involved in the pathways of reactive oxygen species. Early agents including vanadocene and peroxovanadium compounds have been investigated in detail, and the results can be used to gain a better understanding of how some vanadium compounds are modifying the metabolic pathways potentially developing cancer. Considering the importance of coordination chemistry to biological responses, it is likely that proper consideration of compound formulation will improve the efficacy of the drug. Future development of vanadium-based drugs should include consideration of drug formulation at earlier stages of drug development.
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Boruah PK, Szunerits S, Boukherroub R, Das MR. Magnetic Fe 3O 4@V 2O 5/rGO nanocomposite as a recyclable photocatalyst for dye molecules degradation under direct sunlight irradiation. Chemosphere 2018; 191:503-513. [PMID: 29059557 DOI: 10.1016/j.chemosphere.2017.10.075] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 10/09/2017] [Accepted: 10/12/2017] [Indexed: 06/07/2023]
Abstract
Reduced graphene oxide nanosheets decorated with Fe3O4 and V2O5 nanoparticles as a magnetically recoverable nanocomposite (Fe3O4@V2O5/rGO) was synthesized by a simple solution chemistry approach. The synthesized nanocomposite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), Fourier transform infrared (FTIR), fluorescence, and zeta potential measurements. The narrow band gap and different band gap energies of Fe3O4 and V2O5 proved to be suitable for the absorption of visible light in the solar spectrum. The Fe3O4@V2O5/rGO displayed indeed excellent photocatalytic activity towards the degradation of harmful cationic Bismarck Brown (BB) as well as anionic Acid Orange 7 (AO) dyes under direct sunlight irradiation. The photocatalytic activity of the Fe3O4@V2O5/rGO is influenced by solution pH, catalyst loading, initial dye concentration and the presence of different inorganic ions (NH4+, Na+, Mg2+, Ca2+, SO42-, Br-, NO3-, Cl-, HCO3-). This study provides a new scientific knowledge on the sunlight driven photocatalytic degradation of dye molecules using novel mixed metal oxide/rGO nanocomposite photocatalyst.
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Affiliation(s)
- Purna K Boruah
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, India
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520, IEMN, F-59000 Lille, France
| | - Manash R Das
- Advanced Materials Group, Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat, 785006, Assam, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-NEIST Campus, India.
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Lee J, Srimuk P, Aristizabal K, Kim C, Choudhury S, Nah YC, Mücklich F, Presser V. Pseudocapacitive Desalination of Brackish Water and Seawater with Vanadium-Pentoxide-Decorated Multiwalled Carbon Nanotubes. ChemSusChem 2017; 10:3611-3623. [PMID: 28741864 DOI: 10.1002/cssc.201701215] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Indexed: 06/07/2023]
Abstract
A hybrid membrane pseudocapacitive deionization (MPDI) system consisting of a hydrated vanadium pentoxide (hV2 O5 )-decorated multi-walled carbon nanotube (MWCNT) electrode and one activated carbon electrode enables sodium ions to be removed by pseudocapacitive intercalation with the MWCNT-hV2 O5 electrode and chloride ion to be removed by non-faradaic electrosorption of the porous carbon electrode. The MWCNT-hV2 O5 electrode was synthesized by electrochemical deposition of hydrated vanadium pentoxide on the MWCNT paper. The stable electrochemical operating window for the MWCNT-hV2 O5 electrode was between -0.5 V and +0.4 V versus Ag/AgCl, which provided a specific capacity of 44 mAh g-1 (corresponding with 244 F g-1 ) in aqueous 1 m NaCl. The desalination performance of the MPDI system was investigated in aqueous 200 mm NaCl (brackish water) and 600 mm NaCl (seawater) solutions. With the aid of an anion and a cation exchange membrane, the MPDI hybrid cell was operated from -0.4 to +0.8 V cell voltage without crossing the reduction and oxidation potential limit of both electrodes. For the 600 mm NaCl solution, the NaCl salt adsorption capacity of the cell was 23.6±2.2 mg g-1 , which is equivalent to 35.7±3.3 mg g-1 normalized to the mass of the MWCNT-hV2 O5 electrode. Additionally, we propose a normalization method for the electrode material with faradaic reactions based on sodium uptake capacities.
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Affiliation(s)
- Juhan Lee
- Leibniz Institute for New Materials (INM), Campus D2 2, 66123, Saarbrücken, Germany
- Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany
| | - Pattarachai Srimuk
- Leibniz Institute for New Materials (INM), Campus D2 2, 66123, Saarbrücken, Germany
- Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany
| | - Katherine Aristizabal
- Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany
| | - Choonsoo Kim
- Leibniz Institute for New Materials (INM), Campus D2 2, 66123, Saarbrücken, Germany
| | - Soumyadip Choudhury
- Leibniz Institute for New Materials (INM), Campus D2 2, 66123, Saarbrücken, Germany
| | - Yoon-Chae Nah
- Interdisciplinary Program in Creative Engineering, School of Energy, Materials, and Chemical Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Cheonan, 31253, Republic of Korea
| | - Frank Mücklich
- Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany
| | - Volker Presser
- Leibniz Institute for New Materials (INM), Campus D2 2, 66123, Saarbrücken, Germany
- Department of Materials Science and Engineering, Saarland University, Campus D2 2, 66123, Saarbrücken, Germany
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31
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Xie B, Luo H, Tang Q, Du J, Liu Z, Tao C. The black rock series supported SCR catalyst for NO x removal. Environ Sci Pollut Res Int 2017; 24:21761-21769. [PMID: 28766147 DOI: 10.1007/s11356-017-9622-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
Black rock series (BRS) is of great potential for their plenty of valued oxides which include vanadium, iron, alumina and silica oxides, etc. BRS was used for directly preparing of selective catalytic reduction (SCR) catalyst by modifying its surface texture with SiO2-TiO2 sols and regulating its catalytic active constituents with V2O5 and MoO3. Consequently, 90% NO removal ratio was obtained within 300-400 °C over the BRS-based catalyst. The structure and properties of the BRS-based catalyst were characterized by the techniques of N2 adsorption-desorption, X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), H2-temperature programmed reduction (H2-TPR), and NH3-temperature programmed desorption (NH3-TPD). The results revealed that the BRS-based catalyst possesses favorable properties for NO x removal, including highly dispersed active components, abundant surface-adsorbed oxygen Oα, well redox property, and numerous Brønsted acid sites. Particularly, the BRS-based catalyst exhibited considerable anti-poisoning performance compared with commercial TiO2-based catalyst. The former catalyst shows a NO conversion surpassing 80% from 300 to 400 °C for potassium poisoning, and a durability of SO2 and H2O exceeding 85% at temperatures from 300 to 450 °C.
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Affiliation(s)
- Bin Xie
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China
| | - Hang Luo
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China
| | - Qing Tang
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China
| | - Jun Du
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China.
| | - Zuohua Liu
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China
| | - Changyuan Tao
- Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering (Chongqing), Chongqing University, Chongqing, 400044, China.
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Adam AMA, Naglah AM, Al-Omar MA, Refat MS. Synthesis of a new insulin-mimetic anti-diabetic drug containing vitamin A and vanadium(IV) salt: Chemico-biological characterizations. Int J Immunopathol Pharmacol 2017; 30:272-281. [PMID: 28731364 PMCID: PMC5815261 DOI: 10.1177/0394632017719601] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 06/06/2017] [Indexed: 01/29/2023] Open
Abstract
Diabetes patients suffer from chronic disorders in the metabolism due to high blood sugar caused by anomalies in insulin excretion. Recently, vanadium compounds have been prepared and functionalized to decrease the level of hyperglycemia. Vitamin A boosts beta cell activity; therefore, the lack of this vitamin plays a role in the development of type 2 diabetes. The aim of this article focused on the synthesis of a new anti-diabetic drug formed from the complexation of a vanadium(IV) salt with vitamin A. Vitamin A acts as a unidentate chelate through the oxygen of its -OH group. The vanadium(IV) compound is surrounded by two vitamin A molecules. The [VO(vitamin A)2(H2O)2] compound was synthesized in a binary solvent system consisting of MeOH/H2O (1:1 ratio) in alkaline media at pH = 8. This compound was characterized using Fourier transform infrared spectra (FT-IR), electronic spectra (UV-vis), effective magnetic moment, electron spin resonance (ESR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and thermal analysis (thermogravimetry (TG)-differential thermal analysis (DTA)). Anti-diabetic efficiency for the vanadium(IV) compound was assessed in streptozotocin (STZ)-induced diabetic mice. The results of the animal studies demonstrate the ability of the vanadium(IV) complex to act as an anti-diabetic agent, as measured by improvements of lipid profile, antioxidant activity (superoxide dismutase), malondialdehyde (MDA), glutathione, methionine synthase, and kidney and liver functions.
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Affiliation(s)
- Abdel Majid A Adam
- Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia
| | - Ahmed M Naglah
- Department of Pharmaceutical Chemistry, Drug Exploration & Development Chair, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
- Peptide Chemistry Department, Chemical Industries Research Division, National Research Centre, Cairo, Egypt
| | - Mohamed A Al-Omar
- Department of Pharmaceutical Chemistry, Drug Exploration & Development Chair, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Moamen S Refat
- Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia
- Department of Chemistry, Faculty of Science, Port Said University, Port Said, Egypt
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Nibel O, Rojek T, Schmidt TJ, Gubler L. Amphoteric Ion-Exchange Membranes with Significantly Improved Vanadium Barrier Properties for All-Vanadium Redox Flow Batteries. ChemSusChem 2017; 10:2767-2777. [PMID: 28544623 DOI: 10.1002/cssc.201700610] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/19/2017] [Indexed: 06/07/2023]
Abstract
All-vanadium redox flow batteries (VRBs) have attracted considerable interest as promising energy-storage devices that can allow the efficient utilization of renewable energy sources. The membrane, which separates the porous electrodes in a redox flow cell, is one of the key components in VRBs. High rates of crossover of vanadium ions and water through the membrane impair the efficiency and capacity of a VRB. Thus, membranes with low permeation rate of vanadium species and water are required, also characterized by low resistance and stability in the VRB environment. Here, we present a new design concept for amphoteric ion-exchange membranes, based on radiation-induced grafting of vinylpyridine into an ethylene tetrafluoroethylene base film and a two-step functionalization to introduce cationic and anionic exchange sites, respectively. During long-term cycling, redox flow cells containing these membranes showed higher efficiency, less pronounced electrolyte imbalance, and significantly reduced capacity decay compared to the cells with the benchmark material Nafion 117.
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Affiliation(s)
- Olga Nibel
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Tomasz Rojek
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
| | - Thomas J Schmidt
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
- Laboratory of Physical Chemistry, ETH Zürich, 8093, Zürich, Switzerland
| | - Lorenz Gubler
- Electrochemistry Laboratory, Paul Scherrer Institut, 5232, Villigen PSI, Switzerland
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Nevárez-Martínez MC, Mazierski P, Kobylański MP, Szczepańska G, Trykowski G, Malankowska A, Kozak M, Espinoza-Montero PJ, Zaleska-Medynska A. Growth, Structure, and Photocatalytic Properties of Hierarchical V₂O₅-TiO₂ Nanotube Arrays Obtained from the One-step Anodic Oxidation of Ti-V Alloys. Molecules 2017; 22:E580. [PMID: 28379185 PMCID: PMC6154676 DOI: 10.3390/molecules22040580] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 03/30/2017] [Accepted: 04/01/2017] [Indexed: 11/19/2022] Open
Abstract
V₂O₅-TiO₂ mixed oxide nanotube (NT) layers were successfully prepared via the one-step anodization of Ti-V alloys. The obtained samples were characterized by scanning electron microscopy (SEM), UV-Vis absorption, photoluminescence spectroscopy, energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (DRX), and micro-Raman spectroscopy. The effect of the applied voltage (30-50 V), vanadium content (5-15 wt %) in the alloy, and water content (2-10 vol %) in an ethylene glycol-based electrolyte was studied systematically to determine their influence on the morphology, and for the first-time, on the photocatalytic properties of these nanomaterials. The morphology of the samples varied from sponge-like to highly-organized nanotubular structures. The vanadium content in the alloy was found to have the highest influence on the morphology and the sample with the lowest vanadium content (5 wt %) exhibited the best auto-alignment and self-organization (length = 1 μm, diameter = 86 nm and wall thickness = 11 nm). Additionally, a probable growth mechanism of V₂O₅-TiO₂ nanotubes (NTs) over the Ti-V alloys was presented. Toluene, in the gas phase, was effectively removed through photodegradation under visible light (LEDs, λmax = 465 nm) in the presence of the modified TiO₂ nanostructures. The highest degradation value was 35% after 60 min of irradiation. V₂O₅ species were ascribed as the main structures responsible for the generation of photoactive e- and h⁺ under Vis light and a possible excitation mechanism was proposed.
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Affiliation(s)
- María C Nevárez-Martínez
- Facultad de Ingeniería Química y Agroindustria, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
- Centro de Investigación y Control Ambiental "CICAM", Departamento de Ingeniería Civil y Ambiental, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
| | - Paweł Mazierski
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Marek P Kobylański
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | | | - Grzegorz Trykowski
- Faculty of Chemistry, Nicolaus Copernicus University, Torun 87-100, Poland.
| | - Anna Malankowska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Magda Kozak
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
| | - Patricio J Espinoza-Montero
- Centro de Investigación y Control Ambiental "CICAM", Departamento de Ingeniería Civil y Ambiental, Facultad de Ingeniería Civil y Ambiental, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, P.O. Box 17-01-2759, Quito 170525, Ecuador.
| | - Adriana Zaleska-Medynska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, Gdansk 80-308, Poland.
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Tesmar A, Wyrzykowski D, Kruszyński R, Niska K, Inkielewicz-Stępniak I, Drzeżdżon J, Jacewicz D, Chmurzyński L. Characterization and cytotoxic effect of aqua-(2,2',2''-nitrilotriacetato)-oxo-vanadium salts on human osteosarcoma cells. Biometals 2017; 30:261-275. [PMID: 28204978 PMCID: PMC5352783 DOI: 10.1007/s10534-017-0001-6] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 02/08/2017] [Indexed: 12/23/2022]
Abstract
The use of protonated N-heterocyclic compound, i.e. 2,2'-bipyridinium cation, [bpyH+], enabled to obtain the new nitrilotriacetate oxidovanadium(IV) salt of the stoichiometry [bpyH][VO(nta)(H2O)]H2O. The X-ray measurements have revealed that the compound comprises the discrete mononuclear [VO(nta)(H2O)]- coordination ion that can be rarely found among other known compounds containing nitrilotriacetate oxidovanadium(IV) moieties. The antitumor activity of [bpyH][VO(nta)(H2O)]H2O and its phenanthroline analogue, [phenH][VO(nta)(H2O)](H2O)0.5, towards human osteosarcoma cell lines (MG-63 and HOS) has been assessed (the LDH and BrdU tests) and referred to cis-Pt(NH3)2Cl2 (used as a positive control). The compounds exert a stronger cytotoxic effect on MG-63 and HOS cells than in untransformed human osteoblast cell line. Thus, the [VO(nta)(H2O)]- containing coordination compounds can be considered as possible antitumor agents in the osteosarcoma model of bone-related cells in culture.
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Affiliation(s)
- Aleksandra Tesmar
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Dariusz Wyrzykowski
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland.
| | - Rafał Kruszyński
- Institute of General and Ecological Chemistry, Technical University of Łódź, Żwirki 36, 90-924, Łódź, Poland
| | - Karolina Niska
- Department of Medical Chemistry, Medical University of Gdańsk, Dębinki 1, 80-211, Gdańsk, Poland
| | | | - Joanna Drzeżdżon
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Dagmara Jacewicz
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
| | - Lech Chmurzyński
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308, Gdańsk, Poland
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Jung H, Park E, Kim M, Jurng J. Pilot-scale evaluation of a novel TiO 2-supported V 2O 5 catalyst for DeNOx at low temperatures at a waste incinerator. Waste Manag 2017; 61:283-287. [PMID: 27899246 DOI: 10.1016/j.wasman.2016.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 09/30/2016] [Accepted: 11/04/2016] [Indexed: 06/06/2023]
Abstract
The removal of NOx by catalytic technology at low temperatures is significant for treatment of flue gas in waste incineration plants, especially at temperatures below 200°C. A novel highly active TiO2-supported vanadium oxide catalyst at low temperatures (200-250°C) has been developed for the selective catalytic reduction (SCR) de-NOx process with ammonia. The catalyst was evaluated in a pilot-scale equipment, and the results were compared with those obtained in our previous work using laboratory scale (small volume test) equipment as well as bench-scale laboratory equipment. In the present work, we have performed our experiments in pilot scale equipment using a part of effluent flue gas that was obtained from flue gas cleaning equipment in a full-scale waste incineration plant in South Korea. Based on our previous work, we have prepared a TiO2-supported V2O5 catalyst coated (with a loading of 7wt% of impregnated V2O5) on a honeycomb cordierite monolith to remove NOx from a waste incinerator flue gas at low temperatures. The NOx (nitrogen oxides) removal efficiency of the SCR catalyst bed was measured in a catalyst fixed-bed reactor (flow rate: 100m3h-1) using real exhaust gas from the waste incinerator. The experimental results showed that the V2O5/TiO2 SCR catalyst exhibited good DeNOx performance (over 98% conversion at an operating temperature of 300°C, 95% at 250°C, and 70% at 200°C), and was much better than the performance of commercial SCR catalysts (as low as 55% conversion at 250°C) under the same operating conditions.
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Affiliation(s)
- Hyounduk Jung
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea; Green School (Graduate School of Energy and Environment), Korea University-KIST, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Republic of Korea
| | - Eunseuk Park
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea
| | - Minsu Kim
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea; Green School (Graduate School of Energy and Environment), Korea University-KIST, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Republic of Korea
| | - Jongsoo Jurng
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea; Green School (Graduate School of Energy and Environment), Korea University-KIST, 145 Anam-ro, Seongbuk-gu, Seoul 136-701, Republic of Korea.
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Gong J, Liu W, Du X, Liu C, Zhang Z, Sun F, Yang L, Xu D, Guo H, Deng Y. Direct Conversion of Wheat Straw into Electricity with a Biomass Flow Fuel Cell Mediated by Two Redox Ion Pairs. ChemSusChem 2017; 10:506-513. [PMID: 27976550 DOI: 10.1002/cssc.201601441] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/07/2016] [Indexed: 06/06/2023]
Abstract
In this paper, a biomass flow fuel cell to directly convert wheat straw to electricity at low temperature (80-90 °C) and atmospheric pressure is presented. Two redox ion pairs, Fe3+ /Fe2+ and VO2+ /VO2+ , acting as redox catalysts and charge carriers, were used in the anode and cathode flow tanks, respectively. The wheat straw was first oxidized by Fe3+ in the anode tank at approximately 100 °C. The reduced Fe2+ in the anode was used to construct a fuel cell with VO2+ in the cathode. The VO2+ ions were reduced to VO2+ and regenerated to VO2+ by oxygen oxidation. The wheat straw flow fuel cell showed a power output of 100 mW cm-2 . Mediated with liquid Fe3+ carriers, the solid powder of wheat straw could be gradually degraded into low-molecular-weight organic molecules and even oxidized to CO2 at the anode without using noble-metal catalysts. The overpotential for the electrodes of the flow fuel cell was examined and the energy cost was estimated.
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Affiliation(s)
- Jian Gong
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
- Key Laboratory of Polyoxometalates Science of Ministry of Education, Northeast Normal University, Changchun, Jilin, 130024, P.R. China
| | - Wei Liu
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
| | - Xu Du
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
| | - Congmin Liu
- Guodian New Energy Technology Research Institute, 2 North Street, Future Science and Technology Park, Changping District, Beijing, 102209, P.R. China
| | - Zhe Zhang
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
| | - Feifei Sun
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
| | - Le Yang
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
| | - Dong Xu
- Guodian New Energy Technology Research Institute, 2 North Street, Future Science and Technology Park, Changping District, Beijing, 102209, P.R. China
| | - Hua Guo
- Guodian New Energy Technology Research Institute, 2 North Street, Future Science and Technology Park, Changping District, Beijing, 102209, P.R. China
| | - Yulin Deng
- School of Chemical & Biomolecular Engineering and RBI at Georgia Tech, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, GA, 30332-0620, USA
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Li Z, Chen M, Zhang Q, Liu X, Saito F. Mechanochemical processing of molybdenum and vanadium sulfides for metal recovery from spent catalysts wastes. Waste Manag 2017; 60:734-738. [PMID: 27422050 DOI: 10.1016/j.wasman.2016.06.035] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/27/2016] [Accepted: 06/27/2016] [Indexed: 06/06/2023]
Abstract
This work describes the mechanochemical transformations of molybdenum and vanadium sulfides into corresponding molybdate and vanadate, to serve as a new environment-friendly approach for processing hazardous spent hydrodesulphurization (HDS) catalysts solid waste to achieve an easy recovery of not only molybdenum and vanadium but also nickel and cobalt. Co-grinding the molybdenum and vanadium sulfides with oxidants and sodium carbonate stimulates solid-state reactions without any heating aid to form metal molybdates and vanadates. The reactions proceed with an increase in grinding time and were enhanced by using more sodium carbonate and stronger oxidant. The necessary conditions for the successful transformation can be explained on the basis of thermodynamic analyses, namely a negative change in Gibbs free energy.
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Affiliation(s)
- Zhao Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Min Chen
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
| | - Qiwu Zhang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China.
| | - Xinzhong Liu
- College of Ecological Environment and Urban Construction, Fujian University of Technology, Fuzhou 350118, China
| | - Fumio Saito
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan
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Mutlu E, Cristy T, Graves SW, Hooth MJ, Waidyanatha S. Characterization of aqueous formulations of tetra- and pentavalent forms of vanadium in support of test article selection in toxicology studies. Environ Sci Pollut Res Int 2017; 24:405-416. [PMID: 27726079 DOI: 10.1007/s11356-016-7803-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
Tetravalent (VIV) and pentavalent (VV) forms of vanadium were selected for testing by the National Toxicology Program via drinking water exposure due to potential human exposure. To aid in the test article selection, drinking water formulations (125-2000 mg/L) of vanadyl sulfate (VIV), sodium orthovanadate, and sodium metavanadate (VV) were characterized by ultraviolet/visible (UV/VIS) spectroscopy, mass spectrometry (MS), or 51V nuclear magnetic resonance (NMR) spectroscopy. Aqueous formulations of orthovanadate, metavanadate, and vanadyl sulfate in general were basic, neutral, and acidic, respectively. Changes in vanadium speciation were investigated by adjusting formulation pH to acidic, neutral, or basic. There was no visible difference in UV/VIS spectra of pentavalent forms. NMR and MS analyses showed that the predominant oxidovanadate species in both ortho- and metavanadate formulations at basic and acidic pH, respectively, were the monomer and decamer, while, a mixture of oxidovanadates were present at neutral pH. Oxidovanadate species were not observed in vanadyl sulfate formulations at acidic pH but were observed at basic pH suggesting conversion of VIV to VV. These data suggest that formulations of both ortho- and metavanadate form similar oxidovanadate species in acidic, neutral and basic pH and exist mainly in the VV form while vanadyl sulfate exists mainly as VIV in acidic pH. Therefore, the formulation stability overtime was investigated only for sodium metavanadate and vanadyl sulfate. Drinking water formulations (50 and 2000 mg/L) of metavanadate (~pH 7) and vanadyl sulfate (~pH 3.5) were ≥92 % of target concentration up to 42 days at ~5 °C and ambient temperature demonstrating the utility in toxicology studies.
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Affiliation(s)
- Esra Mutlu
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop K2-07, Research Triangle Park, NC, 27709, USA
| | - Tim Cristy
- Battelle Memorial Institute, Columbus, OH, USA
| | | | - Michelle J Hooth
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop K2-07, Research Triangle Park, NC, 27709, USA
| | - Suramya Waidyanatha
- Division of the National Toxicology Program, National Institute of Environmental Health Sciences, P.O. Box 12233, Mail Drop K2-07, Research Triangle Park, NC, 27709, USA.
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Titov VY, Kosenko OV, Starkova ES, Kondratov GV, Borkhunova EN, Petrov VA, Osipov AN. Enzymatic Sensor Detects Some Forms of Nitric Oxide Donors Undetectable by Other Methods in Living Tissues. Bull Exp Biol Med 2016; 162:107-110. [PMID: 27878493 DOI: 10.1007/s10517-016-3557-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 08/12/2015] [Indexed: 11/26/2022]
Abstract
Studies with the use of highly sensitive enzymatic sensor have shown the presence of various forms of nitrosyl iron complexes, including those undetectable by other methods, in living tissues. All these complexes are long-living compounds and constitute the major part of nitroso compounds in the blood, muscles, liquor, and amniotic fluid.
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Affiliation(s)
- V Yu Titov
- All-Russian Research Institute of Poultry Breeding, Sergiev Posad, Moscow Region, Russia.
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia.
| | - O V Kosenko
- All-Russian Research Institute of Poultry Breeding, Sergiev Posad, Moscow Region, Russia
| | - E S Starkova
- All-Russian Research Institute of Poultry Breeding, Sergiev Posad, Moscow Region, Russia
| | - G V Kondratov
- K. I. Skryabin Moscow State Academy of Veterinarian Medicine and Biotechnology, Moscow, Russia
| | - E N Borkhunova
- K. I. Skryabin Moscow State Academy of Veterinarian Medicine and Biotechnology, Moscow, Russia
| | - V A Petrov
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
| | - A N Osipov
- N. I. Pirogov Russian National Research Medical University, Ministry of Health of the Russian Federation, Moscow, Russia
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Lacroix J, Pélofy S, Blatché C, Pillaire MJ, Huet S, Chapuis C, Hoffmann JS, Bancaud A. Analysis of DNA Replication by Optical Mapping in Nanochannels. Small 2016; 12:5963-5970. [PMID: 27624455 DOI: 10.1002/smll.201503795] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 06/21/2016] [Indexed: 06/06/2023]
Abstract
DNA replication is essential to maintain genome integrity in S phase of the cell division cycle. Accumulation of stalled replication forks is a major source of genetic instability, and likely constitutes a key driver of tumorigenesis. The mechanisms of regulation of replication fork progression have therefore been extensively investigated, in particular with DNA combing, an optical mapping technique that allows the stretching of single molecules and the mapping of active region for DNA synthesis by fluorescence microscopy. DNA linearization in nanochannels has been successfully used to probe genomic information patterns along single chromosomes, and has been proposed to be a competitive alternative to DNA combing. Yet this conjecture remains to be confirmed experimentally. Here, two complementary techniques are established to detect the genomic distribution of tracks of newly synthesized DNA in human cells by optical mapping in nanochannels. Their respective advantages and limitations are compared, and applied them to detect deregulations of the replication program induced by the antitumor drug hydroxyurea. The developments here thus broaden the field of applications accessible to nanofluidic technologies, and can be used in the future as part for molecular diagnostics in the context of high throughput cancer drug screening.
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Affiliation(s)
- Joris Lacroix
- CNRS, LAAS, 7 avenue du colonel Roche, F-31400, Toulouse, France
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
| | - Sandrine Pélofy
- CNRS, LAAS, 7 avenue du colonel Roche, F-31400, Toulouse, France
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
| | - Charline Blatché
- CNRS, LAAS, 7 avenue du colonel Roche, F-31400, Toulouse, France
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
| | - Marie-Jeanne Pillaire
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
- Equipe "Labellisée LA LIGUE CONTRE LE CANCER 2013" - Laboratoire d'Excellence Toulouse Cancer LABEX TOUCAN - Cancer Research Center of Toulouse, Inserm U1037, CNRS ERL5294, 2 Avenue Hubert Curien, CS 53717, 31037, Toulouse, France
| | - Sébastien Huet
- CNRS, UMR 6061, Institut Génétique et Développement de Rennes, F-35043, Rennes, France
- Université Rennes 1, UEB, UMR 6290, Faculté de Médecine, F-35043, Rennes, France
| | - Catherine Chapuis
- CNRS, UMR 6061, Institut Génétique et Développement de Rennes, F-35043, Rennes, France
- Université Rennes 1, UEB, UMR 6290, Faculté de Médecine, F-35043, Rennes, France
| | - Jean-Sébastien Hoffmann
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
- Equipe "Labellisée LA LIGUE CONTRE LE CANCER 2013" - Laboratoire d'Excellence Toulouse Cancer LABEX TOUCAN - Cancer Research Center of Toulouse, Inserm U1037, CNRS ERL5294, 2 Avenue Hubert Curien, CS 53717, 31037, Toulouse, France
| | - Aurélien Bancaud
- CNRS, LAAS, 7 avenue du colonel Roche, F-31400, Toulouse, France
- Univ de Toulouse, LAAS, F-31400, Toulouse, France
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Lei JX, Wang J, Huo Y, You Z. 4-Fluoro-N'-(2-hydroxy-3-methoxybenzylidene) benzohydrazide and its Oxidovanadium(V) Complex: Syntheses, Crystal Structures and Insulin-enhancing Activity. Acta Chim Slov 2016; 63:670-7. [PMID: 27640395 DOI: 10.17344/acsi.2016.2589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A hydrated hydrazone compound, 4-fluoro-N'-(2-hydroxy-3-methoxybenzylidene)benzohydrazide monohydrate (H2L · H2O), was prepared and characterized by elemental analysis, HRMS, IR, UV-Vis and 1H NMR spectroscopy. Reaction of H2L, kojic acid (5-hydroxy-2-(hydroxymethyl)-4H-pyran-4-one; Hka) and VO(acac)2 in methanol afforded a novel oxidovanadium(V) complex, [VO(ka)L]. The complex was characterized by elemental analysis, IR, UV-Vis and 1H NMR spectroscopy. Thermal analysis was also performed. Structures of H2L and the complex were further confirmed by single crystal structural X-ray diffraction. The vanadium complex is the first structurally characterized vanadium complex of kojic acid. Insulin-mimetic tests on C2C12 muscle cells indicate that the complex significantly stimulated cell glucose utilization with cytotoxicity at 0.11 g L-1.
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Wang Q, Hung PC, Lu S, Chang MB. Catalytic decomposition of gaseous PCDD/Fs over V2O5/TiO2-CNTs catalyst: Effect of NO and NH3 addition. Chemosphere 2016; 159:132-137. [PMID: 27285382 DOI: 10.1016/j.chemosphere.2016.05.072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 05/17/2016] [Accepted: 05/23/2016] [Indexed: 06/06/2023]
Abstract
There is a strong need for a control technology that simultaneously achieving the abatement of PCDD/Fs (polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans) and nitrogen oxides (NOx) emissions in waste incineration industry. TiO2 and carbon nanotubes (CNTs) were used as composite carriers to support vanadium oxide as an innovative catalyst to simultaneously control PCDD/Fs and NO emissions. The removal efficiencies (RE) of PCDD/Fs by V2O5/TiO2-CNTs catalyst under a space velocity (SV) of 20,000 h(-1) reaches 99.9% at 150 °C and adsorption is supposed to be the main mechanism at this temperature. The influence of NONH3 reaction on PCDD/Fs catalytic reaction is investigated. The kinetics analysis exhibits that the addition of NO and NH3 reduces the activation energies for OCDD (octachlorodibenzo-p-dioxin) and OCDF (octachlorodibenzofuran) decomposition to 3.6 kJ/mol and 5.4 kJ/mol respectively.
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Affiliation(s)
- Qiulin Wang
- School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China
| | - Pao Chang Hung
- Graduate Institute of Environmental Engineering, National Central University, No. 300, Jungdad Road, Chungli 320, Taiwan
| | - Shengyong Lu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Moo Been Chang
- Graduate Institute of Environmental Engineering, National Central University, No. 300, Jungdad Road, Chungli 320, Taiwan
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Yu MF, Lin XQ, Yan M, Li XD, Chen T, Yan JH. Low temperature destruction of PCDD/Fs over V2O5-CeO2/TiO2 catalyst with ozone. Environ Sci Pollut Res Int 2016; 23:17563-17570. [PMID: 27234830 DOI: 10.1007/s11356-016-6955-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/20/2016] [Indexed: 06/05/2023]
Abstract
Catalytic destruction of PCDD/Fs (polychlorinated dibenzo-p-dioxins and furans) over V2O5-CeO2/TiO2 catalyst was investigated at a low temperature range of 140-180 °C, in the absence and presence of ozone (200 ppm). Nano-TiO2 support was used to prepare the catalyst by step impregnation method. A stable PCDD/Fs-generating system was established to support the catalytic destruction tests. In the presence of ozone alone, destruction efficiencies of PCDD/Fs are between 32.2 and 43.1 % with temperature increasing from 140 to 180 °C. The activity of V2O5-CeO2/TiO2 catalyst alone on PCDD/Fs destruction is also studied. The increase of temperature from 140 to 180 °C enhances the activity of catalyst with destruction efficiencies increasing from 54.7 to 73.4 %. However, ozone addition greatly enhances the catalytic activity of V2O5-CeO2/TiO2 catalyst on PCDD/Fs decomposition. At 180 °C, the destruction efficiency of PCDD/Fs achieved with V2O5-CeO2/TiO2 catalyst and ozone is above 86.0 %. It indicates that the combined use of ozone and catalyst reduces the reaction temperature of PCDD/Fs oxidation and offers a new method to destroy PCDD/Fs with high destruction efficiency at a low temperature. Furthermore, the destruction efficiencies of 17 toxic PCDD/F congeners, achieved with ozone alone, catalyst alone, and catalyst/ozone are analyzed.
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Affiliation(s)
- Ming-Feng Yu
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
| | - Xiao-Qing Lin
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Mi Yan
- Institute of Energy and Power Engineering, Zhejiang University of Technology, Hangzhou, 310014, People's Republic of China
| | - Xiao-Dong Li
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
| | - Tong Chen
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jian-Hua Yan
- State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
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Rees JA, Wandzilak A, Maganas D, Wurster NIC, Hugenbruch S, Kowalska JK, Pollock CJ, Lima FA, Finkelstein KD, DeBeer S. Experimental and theoretical correlations between vanadium K-edge X-ray absorption and Kβ emission spectra. J Biol Inorg Chem 2016; 21:793-805. [PMID: 27251139 PMCID: PMC4989026 DOI: 10.1007/s00775-016-1358-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/29/2016] [Indexed: 11/28/2022]
Abstract
A series of vanadium compounds was studied by K-edge X-ray absorption (XAS) and K[Formula: see text] X-ray emission spectroscopies (XES). Qualitative trends within the datasets, as well as comparisons between the XAS and XES data, illustrate the information content of both methods. The complementary nature of the chemical insight highlights the success of this dual-technique approach in characterizing both the structural and electronic properties of vanadium sites. In particular, and in contrast to XAS or extended X-ray absorption fine structure (EXAFS), we demonstrate that valence-to-core XES is capable of differentiating between ligating atoms with the same identity but different bonding character. Finally, density functional theory (DFT) and time-dependent DFT calculations enable a more detailed, quantitative interpretation of the data. We also establish correction factors for the computational protocols through calibration to experiment. These hard X-ray methods can probe vanadium ions in any oxidation or spin state, and can readily be applied to sample environments ranging from solid-phase catalysts to biological samples in frozen solution. Thus, the combined XAS and XES approach, coupled with DFT calculations, provides a robust tool for the study of vanadium atoms in bioinorganic chemistry.
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Affiliation(s)
- Julian A Rees
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
- Department of Chemistry, University of Washington, Box 351700, Seattle, WA, 98195-1700, USA
| | - Aleksandra Wandzilak
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Kraków, Poland
| | - Dimitrios Maganas
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Nicole I C Wurster
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Stefan Hugenbruch
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Joanna K Kowalska
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Christopher J Pollock
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany
- Department of Chemistry, The Pennsylvania State University, University Park, PA, 16802, USA
| | - Frederico A Lima
- Centro Nacional de Pesquisa em Energia e Materiais, Laboratório Nacional de Luz Síncrotron, Rua Giuseppe Máximo Scolfaro 10000, Campinas, SP, 13083-970, Brazil
| | - Kenneth D Finkelstein
- Cornell High Energy Synchrotron Source, Wilson Laboratory, Cornell University, Ithaca, NY, 14853, USA
| | - Serena DeBeer
- Max Planck Institute for Chemical Energy Conversion, Stiftstr. 34-36, 45470, Mülheim an der Ruhr, Germany.
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853, USA.
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Liu Z, Peng W, Xu Z, Shih K, Wang J, Wang Z, Lv X, Chen J, Li X. Molybdenum Disulfide-Coated Lithium Vanadium Fluorophosphate Anode: Experiments and First-Principles Calculations. ChemSusChem 2016; 9:2122-2128. [PMID: 27376792 DOI: 10.1002/cssc.201600370] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 05/07/2016] [Indexed: 06/06/2023]
Abstract
To develop a new anode material to meet the increasing demands of lithium-ion battery, MoS2 is used for the first time to modify the C/LiVPO4 F anode to improve its lithium-storage performance between 3 and 0.01 V. Morphological observations reveal that the MoS2 -modified C/LiVPO4 F particles (M-LVPF) are wrapped by an amorphous carbon as interlayer and layered MoS2 as external surface. Charge-discharge tests show that M-LVPF delivers a high reversible capacity of 308 mAh g(-1) at 50 mA g(-1) . After 300 cycles at 1.0 A g(-1) , a capacity retention of 98.7 % is observed. Moreover, it exhibits high rate capability with a specific capacity of 199 mAh g(-1) at 1.6 A g(-1) . Electrochemical impedance spectroscopy tests indicate that the lithium-ion diffusion and charge-exchange reaction at the surface of M-LVPF are greatly enhanced. First-principles calculations for the MoS2 (001)/C/LiVPO4 F (010) system demonstrate that the absorption of MoS2 on C/LiVPO4 F is exothermic and spontaneous and that the electron transfer at the MoS2 -absorbed C/LiVPO4 F surface is enhanced.
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Affiliation(s)
- Zhaomeng Liu
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
| | - Wenjie Peng
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
| | - Zhenming Xu
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong
| | - Jiexi Wang
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China. ,
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong. ,
| | - Zhixing Wang
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
| | - Xiaojun Lv
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
| | - Jiangan Chen
- Faculty of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, P.R. China
| | - Xinhai Li
- School of Metallurgy and Environment, Central South University, 932, Lushan South Road, Changsha, 410083, P.R. China
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Chen Y, Wu Q, Liu K. Dual degradation of gaseous 1,2-dichlorobenzene and PCDD/Fs using Ce doped VxOy/TiO2 immobilized on cordierite. Chemosphere 2016; 154:472-481. [PMID: 27085061 DOI: 10.1016/j.chemosphere.2016.04.012] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 03/05/2016] [Accepted: 04/04/2016] [Indexed: 06/05/2023]
Abstract
The photocatalytic film Ce doped VxOy/TiO2 was loaded on cordierite honeycomb (CHC), and this composite was prepared by sol-gel and dipping method, with Ce, oxides of V and TiO2 as dopant and key substances, respectively. Using gaseous 1,2-dichlorobenzene to replace dioxin as target pollutant, dual degradation experiments at 140-280 °C were carried out (thermal decomposition and photodegradation), and the effects of preparation conditions on catalytic activity were investigated: doping amount of Ce, dipping time in the gel, the concentration of ammonium metavanadate (NH4VO3) solution, dipping time in NH4VO3 solution, sintering temperature. The gaseous samples were taken before and after the reactor and analyzed by gas chromatography. According to the results, the optimal preparation conditions were determined, and the corresponding removal rate was above 95% after 90 min of degradation at 280 °C. The composite was examined by ultrasonic to analyze the adhesive strength between the film and CHC, and further characterized by XRD and SEM. Furthermore, flue gas from waste incinerator was chosen as target pollutant, which contained PCDD/Fs, the industrial sidestream degradation experiment was carried out and showed excellent removal efficiency of the composite, the removal rate of PCDD/Fs reached ca. 90% after 90 min of degradation.
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Affiliation(s)
- Yan Chen
- School of Materials and Metallurgy, Northeastern University, Shenyang 110819, PR China
| | - Qiong Wu
- School of Materials and Metallurgy, Northeastern University, Shenyang 110819, PR China
| | - Kuiren Liu
- School of Materials and Metallurgy, Northeastern University, Shenyang 110819, PR China.
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He F, Chen C, Liu S. Effect of Manganese Additive on the Improvement of Low-Temperature Catalytic Activity of VO(x)-WO(x)/TiO2 Nanoparticles for Chlorobenzene Combustion. J Nanosci Nanotechnol 2016; 16:6265-6270. [PMID: 27427700 DOI: 10.1166/jnn.2016.12103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, V-W/TiO2, Mn-V-W/TiO2 and Mn-W/TiO2 nanoparticles were prepared by homogeneous precipitation method and investigated for the catalytic combustion of chlorobenzene (CB), which was used as a model compound of chlorinated volatile organic compounds (CVOCs). The samples were characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption, transmission electron microscope (TEM) and hydrogen temperature-programed reduction (H2-TPR). The average size of the nanoparticles was -20 nm. Manganese species were evenly distributed on the surface of the V-W/TiO2 catalyst, and a small amount of manganese addition did not affect the crystal form, crystallinity and morphology of the V-W/TiO2 catalyst. In addition, low-temperature catalytic activity of V-W/TiO2 catalysts could be effectively improved. When the molar ratio of Mn/(Mn + V) was 0.25 or 0.4, the catalyst displayed the highest low-temperature activity. This was possibly due to Mn (VO3)x formed by the reaction of manganese and vanadium species. Meanwhile, we also found that the addition of oxalic acid was benefit to the improvement of the catalytic activities. When manganese content was high, such as Mn (0.75) VW/Ti, the catalyst activity declined seriously, and the reason was also discussed.
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El-Meliegy E, Farag MM, Knowles JC. Dissolution and drug release profiles of phosphate glasses doped with high valency oxides. J Mater Sci Mater Med 2016; 27:108. [PMID: 27117794 DOI: 10.1007/s10856-016-5711-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
This paper investigates phosphate glasses incorporating vanadium and molybdenum oxides for effective management of dissolution and drug release. These glass formulations are found to reduce the rate of dissolution from the glass surfaces. The drug functional groups of vancomycin molecules loaded by immersion showed stronger hydrogen bonding with Vanadium doped glasses and consequently lower rate of drug release over 2 weeks indicating better surface attachment with the drug molecules and slow drug release profiles. This can be explained by the strong adherence of drug molecules to glass surfaces compared with the molybdenum containing glasses (PM5 and PM10). The strong attachment relates to hydrogen bonding between the amino-functional groups of vancomycin and the hydrated P-O-H groups in the glass network. In conclusion, the rate of dissolution of doped glasses and the rate of drug release can be administered to deliver the drug molecules over weeks.
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Affiliation(s)
- E El-Meliegy
- Department of Biomaterials, National Research Centre, El-Tahrir Street, Dokki, Cairo, Egypt.
| | - M M Farag
- Department of Biomaterials, National Research Centre, El-Tahrir Street, Dokki, Cairo, Egypt
| | - J C Knowles
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, 256 Grays Inn Road, London, WC1X 8LD, UK
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50
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Yang Y, Lu Y, Wang W, Feng C, Yang S. Synthesis and Electrochemical Properties of Nano-VO2 (B). J Nanosci Nanotechnol 2016; 16:2534-2540. [PMID: 27455666 DOI: 10.1166/jnn.2016.10777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The nano-VO2 (B) has been self-assembly synthesized by hydrothermal method using different templates, which may give them some interesting properties. The as-prepared samples were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical properties of the samples were investigated. The results show that the hexadecyltrimethyl ammonium bromide (CTAB) (soft template) was used to obtain the VO2 (B1) nanobelts. The flake graphite (hard template) was taken to get the VO2 (B2) nanosheets. The VO2 (B1) nanobelts have higher initial capacity to compare with VO2 (B2). But the VO2 (B2) nanosheets showed better cycling performance than that of VO2 (B1) nanobelts. The nano VO2 (B2) is a promising anode material for lithium ion battery application.
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