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Ji P, Wang P, Chen H, Xu Y, Ge J, Tian Z, Yan Z. Potential of Copper and Copper Compounds for Anticancer Applications. Pharmaceuticals (Basel) 2023; 16:234. [PMID: 37259382 PMCID: PMC9960329 DOI: 10.3390/ph16020234] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/20/2023] [Accepted: 01/30/2023] [Indexed: 08/01/2023] Open
Abstract
Inducing cancer cell death has always been a research hotspot in life sciences. With the continuous deepening and diversification of related research, the potential value of metal elements in inducing cell death has been explored. Taking iron as an example, ferroptosis, mainly characterized by increasing iron load and driving the production of large amounts of lipid peroxides and eventually leading to cell death, has recently attracted great interest in the cancer research community. After iron, copper, a trace element, has received extensive attention in cell death, especially in inducing tumor cell death. Copper and its complexes can induce autophagy or apoptosis in tumor cells through a variety of different mechanisms of action (activation of stress pathways, arrest of cell cycle, inhibition of angiogenesis, cuproptosis, and paraptosis), which are promising in cancer therapy and have become new hotspots in cancer treatment research. This article reviews the main mechanisms and potential applications of novel copper and copper compound-induced cell death, focusing on copper compounds and their anticancer applications.
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Affiliation(s)
- Peng Ji
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Peng Wang
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Hao Chen
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Yajing Xu
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Jianwen Ge
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Zechong Tian
- Jiangsu Provincial Key Laboratory of Chiral Pharmaceutical Chemicals Biologically Manufacturing, College of Pharmacy and Chemistry & Chemical Engineering, Taizhou University, Taizhou 225300, China
| | - Zhirong Yan
- Fujian Key Laboratory of Women and Children’s Critical Diseases Research, Department of Anesthesiology, Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou 350001, China
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2
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Ryu DK, Adhikari M, Choi DH, Jun KJ, Kim DH, Kim CR, Kang MK, Park DH. Copper-Based Compounds against Erwinia amylovora: Response Parameter Analysis and Suppression of Fire Blight in Apple. Plant Pathol J 2023; 39:52-61. [PMID: 36760049 PMCID: PMC9929174 DOI: 10.5423/ppj.oa.07.2022.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Revised: 09/28/2022] [Accepted: 11/23/2022] [Indexed: 06/18/2023]
Abstract
Fire blight, caused by Erwinia amylovora, is one of the major bacterial disease of apple and pear, causing enormous economic losses worldwide. Several control measures against E. amylovora have been reported till date, however, none of them have proved to be effective significantly against the pathogen. In this study, mechanisms of the copper-based control agents (CBCAs): copper oxychloride (COCHL), copper oxide (COX), copper hydroxide (CHY), copper sulfate basic (CSB), and tribasic copper sulfate (TCS) and their disease severity reduction efficacy against E. amylovora were analyzed. Bis-1,3-dibutylbarbituric acid trimethine oxonol, carboxyl fluorescein diacetate succinimidyl ester, and 5-cyano-2,3-ditolyl tetrazolium chloride staining were used to check the damage of membrane potential, cytoplasmic pHin, and respiration of CBCAs-treated E. amylovora, respectively. High disturbance in the membrane potential of E. amylovora was found under COX and COCHL treatments. Similarly, higher significant changes in the inner cytoplasmic pHin were observed under COX, COCHL, and TCS treatment. CHY and COCHL-treated E. amylovora showed a significant reduction in respiration. In vitro bioassay results revealed that CHY, CSB, and TCS at 2,000 ppm reduced the severity of fire blight both in pre- and post-treatment of CBCAs in immature apple fruits and seedlings. Overall, the most effective CBCAs against E. amylovora could be CHY at 2,000 ppm as its showed inhibition mechanisms and disease severity reduction.
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Affiliation(s)
- Duck Kyu Ryu
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341,
Korea
| | - Mahesh Adhikari
- Applied Biology Program, Division of Bioresource Sciences, Kangwon National University, Chuncheon 24341,
Korea
| | - Dong Hyuk Choi
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341,
Korea
| | - Kyung Jin Jun
- Crop Protection R&D Center, Farmhannong Ltd., Nonsan 33010,
Korea
| | - Do Hyoung Kim
- Crop Protection R&D Center, Farmhannong Ltd., Nonsan 33010,
Korea
| | - Chae Ryeong Kim
- Crop Protection R&D Center, Farmhannong Ltd., Nonsan 33010,
Korea
| | - Min Kyu Kang
- Crop Protection R&D Center, Farmhannong Ltd., Nonsan 33010,
Korea
| | - Duck Hwan Park
- Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341,
Korea
- Applied Biology Program, Division of Bioresource Sciences, Kangwon National University, Chuncheon 24341,
Korea
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Bellisai G, Bernasconi G, Brancato A, Cabrera LC, Castellan I, Ferreira L, Giner G, Greco L, Jarrah S, Leuschner R, Magrans JO, Miron I, Nave S, Pedersen R, Reich H, Robinson T, Ruocco S, Santos M, Scarlato AP, Theobald A, Verani A. Modification of the existing maximum residue levels for copper compounds in other small fruits and berries. EFSA J 2022; 20:e07528. [PMID: 35991961 PMCID: PMC9379771 DOI: 10.2903/j.efsa.2022.7528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
In accordance with Article 6 of Regulation (EC) No 396/2005, the applicant Spiess‐Urania Chemicals GmbH submitted a request to the competent national authority in Austria to modify the existing maximum residue levels (MRLs) for the active substance copper compounds in the whole group of other small fruits and berries. The data submitted in support of the request were found to be sufficient to derive MRL proposals for the whole subgroup of other small fruits and berries. Adequate analytical methods for enforcement of mineral copper independently from its chemical form are available for matrices under consideration at the validated limit of quantification (LOQ) of 5 mg/kg. Based on indicative risk assessment results, EFSA concluded that the long‐term intake of copper residues resulting from the intended and existing uses, natural background levels and monitoring levels might present a risk to consumer health. Although residues in other small fruits and berries are minor contributors to the overall consumer exposure, a risk management decision has to be taken on whether it is appropriate to increase the existing MRLs for these crops, given that a potential consumer intake concern could not be excluded.
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Lala S. Enhancement of secondary metabolites in Bacopa monnieri (L.) Pennell plants treated with copper-based nanoparticles in vivo. IET Nanobiotechnol 2020; 14:78-85. [PMID: 31935682 PMCID: PMC8675962 DOI: 10.1049/iet-nbt.2019.0124] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 10/04/2019] [Accepted: 10/21/2019] [Indexed: 11/20/2022] Open
Abstract
The study aims to document the effect of starch-stabilised copper-based nanoparticles (CuNPs) on the biosynthesis of pharmaceutically valuable secondary metabolites, especially saponins, of the reputed nootropic herb Bacopa monnieri (L.) Pennell. CuNPs were synthesised chemically by the reduction of cupric sulphate pentahydrate with ascorbic acid using starch as the capping agent. They were characterised by UV-visible spectrophotometry, Fourier-transform infra-red spectroscopy, X-ray diffraction, high-resolution transmission electron microscopy and zeta potential. The nanoparticles consisted of cuprous oxide and metallic copper, were approximately spherical, polydispersed with diameter <20 nm. Hydroponically grown B. monnieri plants were treated in vivo with the CuNPs between the concentrations of 0-100 mg l-1. Spectrophotometric estimation of the total contents of saponins, alkaloids, phenolics, flavonoids and DPPH radical scavenging capacity from the methanolic extracts of the whole plants showed a hormetic increase in the content of secondary metabolites in a concentration-dependent manner from 5 mg l-1 until it declined at toxic metabolic concentration. This was accompanied by an increase in ROS markers hydrogen peroxide and malondialdehyde as well as a hormetic effect on activities of phenylalanine ammonia lyase and antioxidant enzymes catalase, ascorbate peroxidase and superoxide dismutase. CuNPs at sub-toxic concentrations were found to enhance secondary metabolism and antioxidant capacity in Bacopa monnieri through ROS-mediated defence response.
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Affiliation(s)
- Sanchaita Lala
- Department of Botany, Sarsuna College (University of Calcutta), 4/HB/A, Ho Chi Minh Sarani, Sarsuna Satellite Township, Kolkata-700061, India.
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Naz S, Akhtar J, Chaudhary MF, Zia M. Low-temperature synthesis of hierarchical structures of copper oxide and their superior biological activity. IET Nanobiotechnol 2018; 12:968-972. [PMID: 30247139 PMCID: PMC8676118 DOI: 10.1049/iet-nbt.2017.0314] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/17/2018] [Accepted: 05/04/2018] [Indexed: 01/27/2023] Open
Abstract
In this work, the authors report a facile low-temperature wet-chemical route to prepare morphology-tailored hierarchical structures (HS) of copper oxide. The preparation of copper oxide collides was carried out using varying concentrations of copper acetate and a reducing agent at a constant temperature of 50°C. The prepared HS of CuO were characterised by powdered X-rays diffraction that indicates phase pure having monoclinic structures. The morphology was further confirmed by field-emission scanning electron microscope. It reveals a difference in shape and size of copper oxide HS by changing the concentration of reactants. In order to evaluate the effect of H2O2 on CuO NPs, the prepared CuO are modified by treatment with H2O2. In general trend, CuOH2O2 collide showed enhanced protein kinase inhibition, antibacterial (maximum zone 16.34 mm against Staphylococcus aureus) and antifungal activities in comparison to unmodified CuO collides. These results reveal that CuO HS exhibit antimicrobial properties and can be used as a potential candidate in pharmaceutical industries.
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Affiliation(s)
- Sania Naz
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Javeed Akhtar
- Materials Lab, Department of Chemistry, Mirpur University of Science & Technology (MUST), Azad Jammu and Kashmir, Pakistan
| | | | - Muhammad Zia
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 45320, Pakistan.
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Abstract
According to Article 12 of Regulation (EC) No 396/2005, EFSA has reviewed the maximum residue levels (MRLs) currently established at European level for the pesticide active substance copper compounds. To assess the occurrence of copper compounds residues in plants, processed commodities, rotational crops and livestock, EFSA considered the conclusions derived in the framework of Directive 91/414/EEC and under Regulation (EC) No 1107/2009 as well as the European authorisations reported by Member States (including the supporting residues data). Considering the fact that copper is an element also naturally present in the environment, any data regarding the inherent content of copper in plant and livestock were also considered. Based on the assessment of the available data, MRL proposals were derived and a consumer risk assessment was carried out. Some information required by the regulatory framework was missing and a possible chronic risk to consumers was identified. Hence, the consumer risk assessment is considered indicative only and some MRL proposals derived by EFSA still require further consideration by risk managers. Measures for reduction of the consumer exposure may also be considered.
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Ain NU, Haq IU, Abbasi BH, Javed R, Zia M. Influence of PVP/PEG impregnated CuO NPs on physiological and biochemical characteristics of Trigonella foenum‐graecum L. IET Nanobiotechnol 2018; 12:349-356. [PMCID: PMC8676271 DOI: 10.1049/iet-nbt.2017.0102] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 10/25/2017] [Accepted: 11/28/2017] [Indexed: 08/08/2023] Open
Abstract
Incorporation of nanoparticles into a number of manufacturing products raised the concern of environmental release via deliberate or accidental routes. Here, experiments were performed to examine the effect of copper oxide nanoparticles (CuO NPs), and polyvinyl pyrrolidone (PVP) and polyethylene glycol (PEG) impregnated CuO NPs on seed germination and growth of Trigonella foenum‐graecum L. as well as on callus induction through tissue culture technique. Seed germination frequency, length, and weight parameters did not inhibit at higher extent by application of NPs; however, copper acetate, PVP, and PEG significantly decreased the values of all parameters. In all the cases, negative effects were observed concentration‐dependent. PVP and PEG impregnated CuO were found less toxic for calli fresh and dry weight induced from leaf and stem explants. The 2, 2‐diphenyl‐1‐picrylhydrazyl reagent‐free radical scavenging activity, total antioxidative potential, and total reducing power potential along with total flavonoid and phenolic contents are found elevated in root when compared with shoot. Furthermore, impregnation of PVP and PEG on CuO NPs increases the oxidative response. The results conclude that impregnation of organic molecules on nanoparticles does not reduce the toxicity though can be exploited for enhanced production of secondary metabolites for medicinal purposes.
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Affiliation(s)
- Noor ul Ain
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabad45320Pakistan
| | - Ihsan ul Haq
- Department of PharmacyQuaid‐i‐Azam UniversityIslamabad45320Pakistan
| | | | - Rabia Javed
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabad45320Pakistan
| | - Muhammad Zia
- Department of BiotechnologyQuaid‐i‐Azam UniversityIslamabad45320Pakistan
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8
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Arena M, Auteri D, Barmaz S, Bellisai G, Brancato A, Brocca D, Bura L, Byers H, Chiusolo A, Court Marques D, Crivellente F, De Lentdecker C, Egsmose M, Erdos Z, Fait G, Ferreira L, Goumenou M, Greco L, Ippolito A, Istace F, Jarrah S, Kardassi D, Leuschner R, Lythgo C, Magrans JO, Medina P, Miron I, Molnar T, Nougadere A, Padovani L, Parra Morte JM, Pedersen R, Reich H, Sacchi A, Santos M, Serafimova R, Sharp R, Stanek A, Streissl F, Sturma J, Szentes C, Tarazona J, Terron A, Theobald A, Vagenende B, Verani A, Villamar-Bouza L. Peer review of the pesticide risk assessment of the active substance copper compounds copper(I), copper(II) variants namely copper hydroxide, copper oxychloride, tribasic copper sulfate, copper(I) oxide, Bordeaux mixture. EFSA J 2018; 16:e05152. [PMID: 32625696 PMCID: PMC7009614 DOI: 10.2903/j.efsa.2018.5152] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The conclusions of the EFSA following the peer review of the initial risk assessments carried out by the competent authorities of the rapporteur Member State, France, and co-rapporteur Member State, Germany, for the pesticide active substance copper compounds are reported. The context of the peer review was that required by Commission Implementing Regulation (EU) No 844/2012. The conclusions were reached on the basis of the evaluation of the representative uses of copper compounds as a fungicide on grapes, tomatoes and cucurbits. The reliable end points appropriate for use in regulatory risk assessment are presented. Missing information identified as being required by the regulatory framework is listed. Concerns are identified.
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Javed R, Zia M, Yücesan B, Gürel E. Abiotic stress of ZnO‐PEG, ZnO‐PVP, CuO‐PEG and CuO‐PVP nanoparticles enhance growth, sweetener compounds and antioxidant activities in shoots of Stevia rebaudiana Bertoni. IET Nanobiotechnol 2017; 11:898-902. [PMCID: PMC8676036 DOI: 10.1049/iet-nbt.2016.0247] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 05/26/2017] [Accepted: 07/17/2017] [Indexed: 09/01/2023] Open
Abstract
Nanoparticles are known to play remarkable role as abiotic stress elicitors in plants. This study reports the comparative analysis of effects produced by capped [zinc oxide (ZnO)‐polyethylene glycol (PEG), ZnO‐polyvinyl pyrrolidone (PVP), copper oxide (CuO)‐PEG, CuO‐PVP] and uncapped (ZnO and CuO) nanoparticles on the medicinal plant, Stevia rebaudiana raised in vitro for the production of commercially important sweetener compounds. In context of shoot organogenesis, ZnO‐PEG, ZnO‐PVP, CuO‐PEG, CuO‐PVP were employed to the growth medium that resulted in increased growth parameters, and larger content of steviol glycosides as compared to the shoots raised in medium containing ZnO and CuO, revealed by high‐performance liquid chromatography. In the meanwhile, non‐enzymatic antioxidant activities including total phenolic content, total flavonoid content, total antioxidant capacity, total reducing power and 2,2‐diphenyl‐1‐picryl hydrazyl‐free radical scavenging activity were calculated and showed comparatively greater amounts in shoots grown in medium containing capped ZnO or CuO nanoparticles. Furthermore, the ZnO and its derivatives revealed to be more reactive at 1 mg/l of concentration. Whereas, the CuO and its derivatives produced greater response on Stevia at 10 mg/l concentration of nanoparticles. This study paves the way for more such studies encompassing capped and uncapped nanoparticles and their ultimate effect on in‐vitro grown plant tissues for the production of active metabolites on industrial scale.
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Affiliation(s)
- Rabia Javed
- Department of BiotechnologyFaculty of Biological SciencesQuaid‐i‐Azam University (QAU)Islamabad45320Pakistan
- Department of BiologyFaculty of Art & ScienceAbant Izzet Baysal University (AIBU)Bolu14030Turkey
| | - Muhammad Zia
- Department of BiotechnologyFaculty of Biological SciencesQuaid‐i‐Azam University (QAU)Islamabad45320Pakistan
| | - Buhara Yücesan
- Department of Seed Science & TechnologyFaculty of Natural & Agricultural SciencesAbant Izzet Baysal University (AIBU)BoluTurkey
| | - Ekrem Gürel
- Department of BiologyFaculty of Art & ScienceAbant Izzet Baysal University (AIBU)Bolu14030Turkey
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Maham M, Sajadi SM, Kharimkhani MM, Nasrollahzadeh M. Biosynthesis of the CuO nanoparticles using Euphorbia Chamaesyce leaf extract and investigation of their catalytic activity for the reduction of 4‐nitrophenol. IET Nanobiotechnol 2017; 11:766-772. [PMCID: PMC8676157 DOI: 10.1049/iet-nbt.2016.0254] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/28/2017] [Accepted: 05/08/2017] [Indexed: 09/24/2023] Open
Abstract
Through this study an eco‐friendly, simple, efficient, cheap and biocompatible approach to the biosynthesis and stabilisation of CuO nanoparticles (NPs) using the Euphorbia Chamaesyce leaf extract is presented. The CuO NPs were monitored and characterised by field emission scanning electron microscopy, energy dispersive X‐ray spectroscopy, Fourier transformed infrared spectroscopy, transmission electron microscope and UV‐visible spectroscopy. The biosynthesised CuO NPs showed good catalytic activity for the reduction of 4‐nitrophenol (4‐NP) in water during 180 s and reused 4 times without considerable loss of activity.
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Affiliation(s)
- Mehdi Maham
- Young Researchers and Elite ClubAliabad Katoul BranchIslamic Azad UniversityAliabad KatoulIran
| | - S. Mohammad Sajadi
- Department of Petroleum GeoscienceFaculty of ScienceSoran UniversityPO Box 624, Soran, Kurdistan Regional GovernmentIraq
| | | | - Mahmoud Nasrollahzadeh
- Center of Environmental ResearchesUniversity of QomQomIran
- Department of ChemistryFaculty of ScienceUniversity of QomQom3716146611Iran
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Khatami M, Heli H, Mohammadzadeh Jahani P, Azizi H, Lima Nobre MA. Copper/copper oxide nanoparticles synthesis using Stachys lavandulifolia and its antibacterial activity. IET Nanobiotechnol 2017; 11:709-713. [PMCID: PMC8676411 DOI: 10.1049/iet-nbt.2016.0189] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 03/05/2017] [Accepted: 03/22/2017] [Indexed: 08/11/2023] Open
Abstract
Nanoparticles of copper/cuprous oxide (Cu/Cu2 O) were successfully synthesised by a green chemistry route. The synthesis process was carried out using an extract of Stachys lavandulifolia as both reducing and capping agents with a facile procedure. The nanoparticles were characterised by different techniques including X‐ray diffraction, indicating that the synthesised sample comprised both copper and cuprous oxide entity. The nanoparticles had a mean size of 80 nm and represented an impressive bactericidal effect on Pseudomonas aeruginosa .
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Affiliation(s)
- Mehrdad Khatami
- Department of MedicineBam University of Medical SciencesBamIran
- Nanomedicine and Nanobiology Research CenterShiraz University of Medical SciencesShirazIran
- Research Center for Tropical and Infectious DiseasesKerman University of Medical SciencesKermanIran
- Leishmaniasis Research CenterKerman University of Medical SciencesKermanIran
| | - Hossein Heli
- Nanomedicine and Nanobiology Research CenterShiraz University of Medical SciencesShirazIran
| | - Peyman Mohammadzadeh Jahani
- Department of MedicineBam University of Medical SciencesBamIran
- Research Center for Tropical and Infectious DiseasesKerman University of Medical SciencesKermanIran
| | - Hakim Azizi
- Department of MedicineZabol University of Medical SciencesZabolIran
| | - Marcos Augusto Lima Nobre
- Fac de Ciências e Tecnologia‐FCTUniversidade Estadual Paulista‐UNESPPresidente PrudenteSP19060‐900Brazil
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12
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Maqbool Q, Iftikhar S, Nazar M, Abbas F, Saleem A, Hussain T, Kausar R, Anwaar S, Jabeen N. Green fabricated CuO nanobullets via Olea europaea leaf extract shows auspicious antimicrobial potential. IET Nanobiotechnol 2017; 11:463-468. [PMID: 28530197 PMCID: PMC8676164 DOI: 10.1049/iet-nbt.2016.0125] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 10/16/2016] [Accepted: 11/09/2016] [Indexed: 12/12/2022] Open
Abstract
In present investigation, copper oxide (CuO) nanostructures have been prepared via green chemistry. Olea europaea leaf extract act as strong chelating agent for tailoring physical as well as bio-medical characteristics of CuO at the nano-size. Physical characterisation such as scanning electron microscope analysis depicts the formation of homogenised spherical shape nanoparticles (NPs) with average size of 42 nm. X-ray diffraction and Fourier transform infrared spectroscopy further confirmed the crystalline pure phase and monoclinic structure. High performance liquid chromatography (HPLC) testing is performed to evaluate the relative concentration of bioactive molecules in the O. europaea leaf extract. From HPLC results capping action of organic molecules around CuO-NPs is hypothesised. The antimicrobial potency of biosynthesised CuO-NPs have been evaluated using colony forming unit (CFU) counting assay and disc diffusion method which shows a significant zone of inhibition against bacterial and fungal strains may be highly potential for future antimicrobial pharmaceutics. Furthermore, reduction of various precursors by plant extract will reduce environmental impact over chemical synthesis.
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Affiliation(s)
- Qaisar Maqbool
- Interdisciplinary Research Organization, University of Chakwal (UOC), Chakwal, Pakistan.
| | - Sidra Iftikhar
- Interdisciplinary Research Organization, University of Chakwal (UOC), Chakwal, Pakistan
| | - Mudassar Nazar
- Interdisciplinary Research Organization, University of Chakwal (UOC), Chakwal, Pakistan
| | - Fazal Abbas
- Interdisciplinary Research Organization, University of Chakwal (UOC), Chakwal, Pakistan
| | - Asif Saleem
- Instituite of Molecular Biology and Biotechnology, The University of Lahore, Lahore, Pakistan
| | - Talib Hussain
- National Institute of Vacuum Science and Technology (NINVAST), Islamabad, Pakistan
| | - Rizwan Kausar
- Department of Chemistry, University of Sargodha, Sargodha, Pakistan
| | - Sadaf Anwaar
- Department of Biotechnology and Bioinformatics, International Islamic University Islamabad, Islamabad, Pakistan
| | - Nyla Jabeen
- Department of Biotechnology and Bioinformatics, International Islamic University Islamabad, Islamabad, Pakistan
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Song R, Krasia-Christoforou T, Debus C, Cölfen H. Structure and Magnetic Property Control of Copper Hydroxide Acetate by Non-Classical Crystallization. Small 2017; 13. [PMID: 27982521 DOI: 10.1002/smll.201602702] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/06/2016] [Indexed: 05/07/2023]
Abstract
Copper hydroxide acetate (CHA), one layered hydroxide compound with tunable magnetism, attracts great interest because of its potential applications in memory devices. However, ferromagnetism for CHA is only demonstrated by means of GPa pressure. Herein, a new method is reported, involving the combination of different crystallization pathways to control crystallization of amorphous CHA toward the formation of CHA/polymer composites with tunable magnetic properties and even a tunability that can be tested at room temperature. By using poly[(ethylene glycol)6 methyl ether methacrylate]-block-poly[2-(acetoacetoxy) ethyl methacrylate] (PEGMA-b-PAEMA) diblock copolymers as additives in combination with a post-treatment process by ultracentrifugation, it is demonstrated that CHA and PEGMA-b-PAEMA form composites exhibiting different magnetic properties, depending on CHA in-plane nanostructures. Analytical characterization reveals that crystallization of CHA is induced by ultracentrifugation, during which CHA nanostructures can be well controlled by changing the degrees of polymerization of the PEGMA and PAEMA blocks and their block length ratios. These findings not only present the first example of using crystallization from polymer stabilized amorphous precursors toward the generation of magnetic nanomaterials with tunable magnetism but also pave the way for the future design of functional composite materials.
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Affiliation(s)
- RuiQi Song
- Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg, 14424, Potsdam, Germany
| | | | - Christian Debus
- Physical Chemistry, University of Konstanz, Universitätsstr. 10, 78464, Konstanz, Germany
| | - Helmut Cölfen
- Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg, 14424, Potsdam, Germany
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