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Ghalavand R, Ghafuri H, Ardeshiri HH. Preparation of nanodiamond anchored on copper tannic acid as a heterogenous catalyst for synthesis of 1,4-benzodiazepines derivatives. Sci Rep 2024; 14:8655. [PMID: 38622185 PMCID: PMC11018864 DOI: 10.1038/s41598-024-58563-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024] Open
Abstract
In this research, a new and eco-friendly heterogeneous catalyst (ND@Tannicacid-Cu) was synthesized based on nanodiamond and copper tannic acid via esterification process. The as-prepared catalyst was characterized by Fourier transforms infrared spectroscopy (FT-IR), energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), and X-ray diffraction (XRD) methods. The catalytic efficacy of the intended catalyst was examined by one-step three-component reaction of 1,4-benzodiazepine derivatives from a mixture of ortho-phenylenediamine, aromatic aldehydes, and dimedone under mild conditions. In all instances, corresponding 2,4-benzodiazepines derivatives were synthesized with high efficiency, short reaction time, straightforward work up procedure, no requirement for column-chromatography, and cost-effective catalyst. The heterogeneous catalyst was easily recycled using fillers, and it can be reused for eight cycles without significantly diminishing its performance.
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Affiliation(s)
- Reza Ghalavand
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Hossein Ghafuri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.
| | - Hadi Hassani Ardeshiri
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
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2
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Mohammad Aminzadeh F, Zeynizadeh B. Immobilized nickel boride nanoparticles on magnetic functionalized multi-walled carbon nanotubes: a new nanocomposite for the efficient one-pot synthesis of 1,4-benzodiazepines. NANOSCALE ADVANCES 2023; 5:4499-4520. [PMID: 37638163 PMCID: PMC10448344 DOI: 10.1039/d3na00415e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 07/22/2023] [Indexed: 08/29/2023]
Abstract
In this study, a new magnetic nanocomposite consisting of Ni2B nanoparticles anchored on magnetic functionalized multi-walled carbon nanotubes (Fe3O4/f-MWCNT/Ni2B) was synthesized and characterized using various techniques such as FT-IR, XRD, FESEM, SEM-based EDX, SEM-based elemental mapping, HRTEM, DLS, SAED, XPS, BET, TGA, and VSM. The as-prepared magnetic nanocomposite was successfully employed for the preparation of bioactive 1,4-benzodiazepines from the three-component reaction of o-phenylenediamine (1), dimedone (2), and different aldehydes (3), in polyethylene glycol 400 (PEG-400) as a solvent at 60 °C. The obtained results demonstrated that the current one-pot three-component protocol offers many advantages, such as good-to-excellent yields within acceptable reaction times, favorable TONs and TOFs, eco-friendliness of the procedure, easy preparation of the nanocomposite, mild reaction conditions, a broad range of products, excellent catalytic activity, green solvent, and reusability of the nanocomposite.
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3
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Mobin M, Ansar F. Polythiophene (PTh)-TiO 2-Reduced Graphene Oxide (rGO) Nanocomposite Coating: Synthesis, Characterization, and Corrosion Protection Performance on Low-Carbon Steel in 3.5 wt % NaCl Solution. ACS OMEGA 2022; 7:46717-46730. [PMID: 36570219 PMCID: PMC9773956 DOI: 10.1021/acsomega.2c05678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
The ternary nanocomposite polythiophene (PTh)-TiO2-reduced graphene oxide (rGO) (PTh-TiO2-rGO) was synthesized by chemical oxidative polymerization with FeCl3 used as the oxidizing agent. Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) were used to characterize the synthesized nanocomposite, followed by its casting on a low-carbon steel (LCS) substrate using N-methyl-2-pyrrolidone (NMP) as a solvent and an epoxy resin and triethyl tetraamine as a binder and curing agent, respectively. Anticorrosion properties of the PTh-TiO2-rGO nanocomposite in 3.5 wt % NaCl solution were established using open-circuit potential (OCP), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), salt spray test, immersion test, contact angle (CA) measurements, water uptake test, and SEM. Additionally, PTh and PTh-TiO2 were separately synthesized, characterized, and subjected to anticorrosion tests following identical synthesis routes for comparison purposes. The results of the investigations demonstrated that the PTh-TiO2-rGO nanocomposite coating provides superior protection in 3.5 wt % NaCl solution compared to pure PTh and PTh-TiO2 coatings, which are evident from its lowest corrosion current density (I corr) (0.570 × 10-6 A cm-2), highest positive shift in corrosion potential (E corr) (-0.578 V), highest impedance and phase angle (3.56 × 103 Ω cm2 and 70°, respectively), highest hydrophobicity (CA 94°), and highest protection efficiency (99%). These results show that the proposed nanocomposite coating provides better corrosion protection in a 3.5 wt % NaCl solution than other coatings.
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Masram LB, Salim SS, Gadkari YU, Bhadke PB, Telvekar VN. β-cyclodextrin: Green catalyst for the efficient and expeditious synthesis of benzodiazepines under aqueous conditions. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2129389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2022]
Affiliation(s)
- Liklesha B. Masram
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, India
| | - Simren S. Salim
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, India
| | - Yatin U. Gadkari
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, India
| | - Priyanka B. Bhadke
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, India
| | - Vikas N. Telvekar
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, India
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Investigating the performance of functionalized and pristine graphene oxide impregnated Nexar™ nanocomposite membranes for PEM fuel cell. CHEMICAL ENGINEERING JOURNAL ADVANCES 2022. [DOI: 10.1016/j.ceja.2022.100346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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6
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le Roux WH, Matthews M, Lederer A, van Reenen AJ, Malgas-Enus R. First report of Schiff-base nickel nanoparticle-catalyzed oligomerization and polymerization of norbornene. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Mirza-Aghayan M, Saeedi M, Boukherroub R. An efficient CuO/rGO/TiO2 photocatalyst for the synthesis of benzopyranopyrimidine compounds under visible light irradiation. NEW J CHEM 2022. [DOI: 10.1039/d1nj05819c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study reports the synthesis of CuO/rGO/TiO2 in coupling reaction under visible light irradiation. Its photocatalytic performance was explored in a pseudo 4-component and a domino reaction for the synthesis of benzopyranopyrimidine compounds. It can be recovered and recycled for 5 runs.
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Affiliation(s)
- Maryam Mirza-Aghayan
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. BOX 14335-186, Tehran, Iran
| | - Mandana Saeedi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. BOX 14335-186, Tehran, Iran
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520 – IEMN, F-59000 Lille, France
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8
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Nasir Z, Ali A, Alam MF, Shoeb M, Nusrat Jahan S. Immobilization of GOx Enzyme on SiO 2-Coated Ni-Co Ferrite Nanocomposites as Magnetic Support and Their Antimicrobial and Photocatalytic Activities. ACS OMEGA 2021; 6:33554-33567. [PMID: 34926904 PMCID: PMC8675013 DOI: 10.1021/acsomega.1c04360] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 11/18/2021] [Indexed: 05/11/2023]
Abstract
The present study used a sol-gel auto-combustion approach to make silica (SiO2)-coated Ni-Co ferrite nanocomposites that would be used as a platform for enzyme immobilization. Using glutaraldehyde as a coupling agent, glucose oxidase (GOx) was covalently immobilized on this magnetic substrate. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), high-resolution transmission electron microscopy (HRTEM), and fourier transform infrared spectroscopy (FTIR) was used to determine the structural analysis and morphology of Ni-Co ferrite/SiO2 nanocomposites. FTIR spectra confirmed the binding of GOx to Ni-Co ferrite/SiO2 nanocomposites, with a loading efficiency of around 85%. At alkaline pH and higher temperature, the immobilized GOx enzyme exhibited increased catalytic activity. After 10 times of reuses, it still had 69% catalytic activity. Overall, the immobilized GOx displayed higher operational stability than the free enzyme under severe circumstances and was easily recovered by magnetic separation. With increased doping concentration of the nanocomposites, the photocatalytic activity was assessed using a degradation process in the presence of methylene blue dye under UV light irradiation, which revealed that the surface area of the nanocomposites with increased doping concentration played a significant role in improving photocatalytic activity. The antibacterial activity of Ni-Co ferrite/SiO2 nanocomposites was assessed using the agar well diffusion method against Escherichia coli, a gram-negative bacteria (ATCC 25922). Consequently, it was revealed that doping of Ni2+ and Co2+ in Fe2O4/SiO2 nanocomposites at varied concentrations improved their antibacterial properties.
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Affiliation(s)
- Zeba Nasir
- Department
of Chemistry, Aligarh Muslim University, Aligarh, UP 202 002, India
| | - Abad Ali
- Department
of Chemistry, Aligarh Muslim University, Aligarh, UP 202 002, India
| | - Md. Fazle Alam
- Interdisciplinary
Biotechnology Unit, Aligarh Muslim University, Aligarh, UP 202 002, India
- Key
Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, People’s Republic
of China
| | - Mohd Shoeb
- Department
of Applied Chemistry, Z.H. College of Engg. & Tech., Aligarh Muslim University, Aligarh, UP 202
002, India
| | - Shaikh Nusrat Jahan
- Department
of Zoology, G.M. Momin Women’s College, University of Mumbai, Bhiwandi, Mumbai 421302, India
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9
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Farhid H, Khodkari V, Nazeri MT, Javanbakht S, Shaabani A. Multicomponent reactions as a potent tool for the synthesis of benzodiazepines. Org Biomol Chem 2021; 19:3318-3358. [PMID: 33899847 DOI: 10.1039/d0ob02600j] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Benzodiazepines (BZDs), a diverse class of benzofused seven-membered N-heterocycles, display essential pharmacological properties and play vital roles in some biochemical processes. They have mainly been prescribed as potential therapeutic agents, which interestingly represent various biological activities such as anticancer, anxiolytic, antipsychotic, anticonvulsant, antituberculosis, muscle relaxant, and antimicrobial activities. The extensive biological activities of BZDs in various fields have encouraged medicinal chemists to discover and design novel BZD-based scaffolds as potential therapeutic candidates with the favorite biological activity through an efficient protocol. Although certainly valuable and important, conventional synthetic routes to these bicyclic benzene compounds contain methodologies often requiring multistep procedures, which suffer from waste materials generation and lack of sustainability. By contrast, multicomponent reactions (MCRs) have recently advanced as a green synthetic strategy for synthesizing BZDs with the desired scope. In this regard, MCRs, especially Ugi and Ugi-type reactions, efficiently and conveniently supply various complex synthons, which can easily be converted to the BZDs via suitable post-transformations. Also, MCRs, especially Mannich-type reactions, provide speedy and economic approaches for the one-pot and one-step synthesis of BZDs. As a result, various functionalized-BZDs have been achieved by developing mild, efficient, and high-yielding MCR protocols. This review covers all aspects of the synthesis of BZDs with a particular focus on the MCRs as well as the mechanism chemistry of synthetic protocols. The present manuscript opens a new avenue for organic, medicinal, and industrial chemists to design safe, environmentally benign, and economical methods for the synthesis of new and known BZDs.
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Affiliation(s)
- Hassan Farhid
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Vida Khodkari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Siamak Javanbakht
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran. and Peoples' Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
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10
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Ali A, Shoeb M, Li Y, Li B, Khan MA. Enhanced photocatalytic degradation of antibiotic drug and dye pollutants by graphene-ordered mesoporous silica (SBA 15)/TiO2 nanocomposite under visible-light irradiation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114696] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Soni J, Sethiya A, Sahiba N, Agarwal S. Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6162] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jay Soni
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Ayushi Sethiya
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Nusrat Sahiba
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
| | - Shikha Agarwal
- Department of Chemistry, Synthetic Organic Chemistry Laboratory MLSU Udaipur India
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12
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Soni J, Sahiba N, Sethiya A, Teli P, Agarwal DK, Manhas A, Jha PC, Joshi D, Agarwal S. Biscoumarin Derivatives as Potent anti-Microbials: Graphene Oxide Catalyzed Eco-Benign Synthesis, Biological Evaluation and Docking Studies. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1852277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jay Soni
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | - Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | - Ayushi Sethiya
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | - Pankaj Teli
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
| | | | - Anu Manhas
- Department of Chemistry, Pandit Deendayal Petroleum University, Gandhinagar, India
| | - Prakash Chandra Jha
- School of Applied and Material Science, Central University of Gujarat, Gandhinagar, India
| | - Deepkumar Joshi
- Department of Chemistry, Sheth M.N. Science College, Patan, Gujarat, India
| | - Shikha Agarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU, Udaipur, India
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13
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Synthesis, Characterization and Corrosion Inhibition Performance of Glycine-Functionalized Graphene/Fe3O4 Nanocomposite (Gr/Fe@Gly NC) for Mild Steel Corrosion in 1 M HCl. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2020. [DOI: 10.1007/s13369-020-05015-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Mashkoor F, Nasar A. Facile synthesis of polypyrrole decorated chitosan-based magsorbent: Characterizations, performance, and applications in removing cationic and anionic dyes from aqueous medium. Int J Biol Macromol 2020; 161:88-100. [DOI: 10.1016/j.ijbiomac.2020.06.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/31/2020] [Accepted: 06/02/2020] [Indexed: 12/12/2022]
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Mozafari R, Ghadermazi M. A nickel nanoparticle engineered CoFe 2O 4@GO-Kryptofix 22 composite: a green and retrievable catalytic system for the synthesis of 1,4-benzodiazepines in water. RSC Adv 2020; 10:15052-15064. [PMID: 35495454 PMCID: PMC9052210 DOI: 10.1039/d0ra01671c] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/03/2020] [Indexed: 12/01/2022] Open
Abstract
A composite of Ni nanoparticles incorporated in Kryptofix 22 conjugated magnetic nano-graphene oxide, CoFe2O4@GO–K 22·Ni, was synthesized via the grafting of Kryptofix 22 moieties on the magnetic nano-graphene oxide surface, followed by reaction of the nanocomposite with nickel nitrate. The Kryptofix 22 host material unit cavities can stabilize the Ni nanoparticles effectively and prevent their aggregation and separation from the surface. Characterization of the catalysts by FT-IR, FE-SEM, TGA, ICP, EDX, XRD, VSM and BET aided understanding the catalyst structure and morphology. This catalyst was efficiently applied for the synthesis of 1,4-benzodiazepine derivatives. The main advantages of the method are mild reaction conditions, inexpensive catalyst, it is environmentally benign, has high to excellent yields and shorter reaction times. This organometallic catalyst can be easily separated from a reaction mixture and was successfully examined for six runs with a slight loss of catalytic activity. In this study, a competent and efficient methodology for the synthesis of benzodiazepine over magnetically retrievable novel CoFe2O4@GO–K 22 anchored Ni is reported.![]()
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Affiliation(s)
- Roya Mozafari
- Department of Chemistry, University of Kurdistan P. O. Box 66135-416 Sanandaj Iran +98 87 33624133 +98 87 33624133
| | - Mohammad Ghadermazi
- Department of Chemistry, University of Kurdistan P. O. Box 66135-416 Sanandaj Iran +98 87 33624133 +98 87 33624133
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16
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Afreen G, Shoeb M, Upadhyayula S. Effectiveness of reactive oxygen species generated from rGO/CdS QD heterostructure for photodegradation and disinfection of pollutants in waste water. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 108:110372. [DOI: 10.1016/j.msec.2019.110372] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/03/2019] [Accepted: 10/27/2019] [Indexed: 11/30/2022]
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17
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Jameel M, Shoeb M, Khan MT, Ullah R, Mobin M, Farooqi MK, Adnan SM. Enhanced Insecticidal Activity of Thiamethoxam by Zinc Oxide Nanoparticles: A Novel Nanotechnology Approach for Pest Control. ACS OMEGA 2020; 5:1607-1615. [PMID: 32010835 PMCID: PMC6990644 DOI: 10.1021/acsomega.9b03680] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Indiscriminate and unregulated application of pesticides produces deleterious effect in various groups of organisms including humans and the environment. To solve these issues, it has been reported that the residue-free green nanocomposite synergistically enhances the pesticide efficacy. In this study, ZnO nanoparticles (NPs) with a thiamethoxam nanocomposite were synthesized and we investigated their synergistic effect on 4th instar larvae of Spodoptera litura (Lepidoptera: Noctuidae). These larvae were allowed to feed on the composite of ZnO NPs with thiamethoxam (10-90 mg/L) and thiamethoxam-impregnated castor leaves. Observations showed an increased larval mortality (27% increased mortality), a malformation in pupae and adults, overdue emergence, and reduced fecundity and fertility. A significant dose-dependent variation in the biochemical parameters such as superoxide dismutase (SOD), glutathione-S-transferase (GST), and thiobarbituric acid-reactive substances (TBARS) in the treated larvae was also observed. A decline of 72.42 and 33.82% in SOD and GST activity ,respectively, was observed at higher concentration as compared to the control. On the contrary, it enhanced the TBARS level up to 56.7%. The synthesized nanocomposite was characterized by different biophysical techniques such as X-ray diffraction (average crystalline size 34 nm), scanning electron microscopy, transmission electron microscopy (average particle size 30 nm), and Fourier transform infrared spectroscopy (Zn-O stretching peaks at 432 cm-1 and 503 cm-1). The observation of the present study suggests that ZnO NPs pave the way for developing cost-effective, eco-friendly, and capable nanomaterial for its applications in the field of biological sciences.
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Affiliation(s)
- Mohd. Jameel
- Department
of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Mohd Shoeb
- Department
of Applied Chemistry, ZHCET Aligarh Muslim
University, Aligarh 202002, India
- Interdisciplinary
Nanotechnology Centre, ZHCET Aligarh Muslim
University, Aligarh 202002, India
| | - Mohd Talib Khan
- Department
of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Rizwan Ullah
- Department
of Zoology, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh, India
| | - Mohammad Mobin
- Department
of Applied Chemistry, ZHCET Aligarh Muslim
University, Aligarh 202002, India
| | | | - Sayed Mohammed Adnan
- Department
of Chemical Engineering, ZHCET College, Aligarh Muslim University, Aligarh 202002, India
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18
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Synthesis and characterization of CoFe2O4@SiO2@NH-NH2-PCuW as an acidic nano catalyst for the synthesis of 1,4-benzodiazepines and a powerful dye remover. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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19
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Emerging Trends in the Syntheses of Heterocycles Using Graphene-based Carbocatalysts: An Update. Top Curr Chem (Cham) 2019; 377:13. [PMID: 31054016 DOI: 10.1007/s41061-019-0238-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 04/16/2019] [Indexed: 01/24/2023]
Abstract
Graphene-based carbocatalysts owing to numerous amazing properties such as large specific surface area, high intrinsic mobility, excellent thermal and electrical conductivities, chemical stability, ease of functionalization, simple method of preparation, effortless recovery and recyclability have gained a superior position amongst the conventional homogeneous and heterogeneous catalysts. In this review, an endeavor has been made to highlight the syntheses of diverse heterocyclic compounds catalyzed by graphene-based catalysts. Further, the study also reveals that all the catalysts could be reused several times without significant loss in their catalytic activity. Additionally, most of the reactions catalyzed by graphene-based carbocatalysts were carried out at ambient temperature and under solvent-free conditions. Thus, the graphene-based catalysts do not merely act as efficient catalysts but also serve as sustainable, green catalysts. This review is divided into various sub-sections, each of which comprehensively describes the preparation of a particular heterocyclic scaffold catalyzed by graphene-derived carbocatalyst in addition to synthesis of graphene oxide and reduced graphene oxide, functionalization, and structural features governing their catalytic properties. Synthesis of heterocycles catalyzed by graphene-based carbocatalysts.
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Shoeb M, Mobin M, Rauf MA, Owais M, Naqvi AH. In Vitro and in Vivo Antimicrobial Evaluation of Graphene-Polyindole (Gr@PIn) Nanocomposite against Methicillin-Resistant Staphylococcus aureus Pathogen. ACS OMEGA 2018; 3:9431-9440. [PMID: 31459077 PMCID: PMC6645293 DOI: 10.1021/acsomega.8b00326] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/01/2018] [Indexed: 05/07/2023]
Abstract
Nowadays, the infection caused by the methicillin-resistant Staphylococcus aureus (MRSA) and countless different types of bacterial infection cause the death of millions of people worldwide. Thereby, several strategies have explored for the advancement of better and active antimicrobial agents; one of these lies in the form of two-dimensional carbon-based nanocomposites. Herein, we demonstrate the synthesis of the graphene-polyindole (Gr@PIn) nanocomposite and polyindole (PIn) and significantly enhance the proficiency against MRSA strains which are immune to most antibiotics. The synthesized Gr@PIn and PIn have been characterized by the various biophysical techniques, especially X-ray diffraction (XRD), electron microscopy [scanning electron microscopy (SEM) and transmission electron microscopy (TEM)], Fourier transform infrared, Raman, UV-vis spectroscopy, and thermogravimetric analysis. Electron microscopic investigations unveiled the disintegration of bacterial cell wall upon interaction with Gr@PIn. Significantly, the Gr@PIn found to be very potent in the eradication of the MRSA strain with minimal toxicity to the mammalian cells. Assessment of the antibacterial mechanism revealed that the Gr@PIn adhered toward the bacterial surface, irreversibly interrupted the membrane layer structure of the bacteria, eventually penetrated cells, and efficiently impeded protein activity, which inherently turns into bacterial apoptosis in vitro. Moreover, last, the synthesized Gr@PIn efficiently treated the S. aureus-mediated experimental skin infection in BALB/c mice as well. This work magnifies our comprehending antibacterial mechanism of nonmetallic graphene-based PIn nanocomposite and provides the support to activity anticipation.
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Affiliation(s)
- Mohd Shoeb
- Department
of Applied Chemistry, Z. H. College of Engg. & Tech., and Interdisciplinary
Nanotechnology Centre (INC), Z. H. College of Engg. & Tech., Aligarh Muslim University, Aligarh 202002 Uttar Pradesh, India
| | - Mohammad Mobin
- Department
of Applied Chemistry, Z. H. College of Engg. & Tech., and Interdisciplinary
Nanotechnology Centre (INC), Z. H. College of Engg. & Tech., Aligarh Muslim University, Aligarh 202002 Uttar Pradesh, India
- E-mail: (M.M.)
| | - Mohd. Ahmar Rauf
- Interdisciplinary
Biotechnology Unit, Aligarh Muslim University, Aligarh 202 002, India
| | - Mohammad Owais
- Interdisciplinary
Biotechnology Unit, Aligarh Muslim University, Aligarh 202 002, India
| | - Alim H. Naqvi
- Department
of Applied Chemistry, Z. H. College of Engg. & Tech., and Interdisciplinary
Nanotechnology Centre (INC), Z. H. College of Engg. & Tech., Aligarh Muslim University, Aligarh 202002 Uttar Pradesh, India
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