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Bensalah D, Gurbuz N, Özdemir I, Gatri R, Mansour L, Hamdi N. Synthesis, Characterization, Antimicrobial Properties, and Antioxidant Activities of Silver-N-Heterocyclic Carbene Complexes. Bioinorg Chem Appl 2023; 2023:3066299. [PMID: 37274082 PMCID: PMC10238139 DOI: 10.1155/2023/3066299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 02/03/2023] [Accepted: 04/20/2023] [Indexed: 06/06/2023] Open
Abstract
The emergence of antimicrobial resistance has become a major handicap in the fight against bacterial infections, prompting researchers to develop new, more effective, and multimodal alternatives. Silver and its complexes have long been used as antimicrobial agents in medicine because of their lack of resistance to silver, their low potency at low concentrations, and their low toxicity compared to most commonly used antibiotics. N-Heterocyclic carbenes (NHCs) are widely used for coordination of transition metals, mainly in catalytic chemistry. In this study, several N-alkylated benzimidazolium salts 2a-j were synthesized. Then, the N-heterocyclic carbene (NHC) precursor was treated with Ag2O to give silver (I) NHC complexes (3a-j) at room temperature in dichloromethane for 48 h. Ten new silver-NHC complexes were fully characterized by nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FT-IR), elemental analysis, and LC-MSMS (for complexes) techniques. The antibacterial and antioxidant activities of salt 2 and its silver complex 3 were evaluated. All of these complexes were more effective against bacterial strains than comparable ligands. With MIC values ranging from 6.25 to 100 g/ml, the Ag-NHC complex effectively showed strong antibacterial activity. Antioxidant activity was also tested using conventional techniques, such as 2, 2-diphenyl-1-picrylhydrazine (DPPH) and hydrogen peroxide scavenging assays. In DPPH and ABTS experiments, compounds 3a, 3b, 3c, 3e, 3g, and 3i showed significant clearance.
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Affiliation(s)
- Donia Bensalah
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09), Higher Institute of Environmental Sciences and Technology, University of Carthage, Hammam-Lif, Tunisia
| | - Nevin Gurbuz
- İnönü University, Faculty of Science and Art, Department of Chemistry, Malatya 44280, Turkey
- İnönü University, Catalysis Research and Application Center, Malatya 44280, Turkey
| | - Ismail Özdemir
- İnönü University, Faculty of Science and Art, Department of Chemistry, Malatya 44280, Turkey
- İnönü University, Catalysis Research and Application Center, Malatya 44280, Turkey
| | - Rafik Gatri
- Laboratory of Selective and Heterocyclic Organic Synthesis Biological Evaluation (LR17ES01), Faculty of Sciences of Tunis, University of Tunis El Manar Campus, Tunis 1092, Tunisia
| | - Lamjed Mansour
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Naceur Hamdi
- Department of Chemistry, College of Science and Arts at Arras, Qassim University, P.O. Box 53, Arras 51921, Saudi Arabia
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2
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Wang L, Liu L, Wang X, Tan Y, Duan X, Zhang C, Cheng J, Xiong Y, Jiang G, Wang J, Liao X. Ruthenium(II) complexes targeting membrane as biofilm disruptors and resistance breakers in Staphylococcus aureus bacteria. Eur J Med Chem 2022; 238:114485. [DOI: 10.1016/j.ejmech.2022.114485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 11/29/2022]
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3
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Fernandes T, Costa IF, Jorge P, Sousa AC, André V, Cabral RG, Cerca N, Kirillov AM. Hybrid Silver(I)-Doped Soybean Oil and Potato Starch Biopolymer Films to Combat Bacterial Biofilms. ACS APPLIED MATERIALS & INTERFACES 2022; 14:25104-25114. [PMID: 35621184 PMCID: PMC9773233 DOI: 10.1021/acsami.2c03010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This study describes the preparation, characterization, and antimicrobial properties of novel hybrid biopolymer materials doped with bioactive silver(I) coordination polymers (bioCPs). Two new bioCPs, [Ag2(μ6-hfa)]n (1) and [Ag2(μ4-nda)(H2O)2]n (2), were assembled from Ag2O and homophthalic (H2hfa) or 2,6-naphthalenedicarboxylic (H2nda) acids as unexplored building blocks. Their structures feature 2D metal-organic and supramolecular networks with 3,6L64 or sql topology. Both compounds act as active antimicrobial agents for producing bioCP-doped biopolymer films based on epoxidized soybean oil acrylate (SBO) or potato starch (PS) as model biopolymer materials with a different rate of degradability and silver release. BioCPs and their hybrid biopolymer films (1@[SBO]n, 2@[SBO]n, 1@[PS]n, and 2@[PS]n) with a very low loading of coordination polymer (0.05-0.5 wt %) show remarkable antimicrobial activity against Staphylococcus aureus and Staphylococcus epidermidis (Gram-positive) and Escherichia coli and Pseudomonas aeruginosa (Gram-negative) bacteria. Biopolymer films also effectively impair the formation of bacterial biofilms, allowing total biofilm inhibition in several cases. By reporting on new bioCPs and biopolymer films obtained from renewable biofeedstocks (soybean oil and PS), this study blends highly important research directions and widens a limited antimicrobial application of bioCPs and derived functional materials. This research thus opens up the perspectives for designing hybrid biopolymer films with outstanding bioactivity against bacterial biofilms.
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Affiliation(s)
- Tiago
A. Fernandes
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Inês F.M. Costa
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Paula Jorge
- Centre
of Biological Engineering, University of
Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Catarina Sousa
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Área
Departamental de Engenharia Química, ISEL—Instituto Superior de Engenharia de Lisboa, Instituto
Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisbon, Portugal
| | - Vânia André
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Rafaela G. Cabral
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
- Área
Departamental de Engenharia Química, ISEL—Instituto Superior de Engenharia de Lisboa, Instituto
Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisbon, Portugal
| | - Nuno Cerca
- Centre
of Biological Engineering, University of
Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Alexander M. Kirillov
- Centro
de Química Estrutural, Institute of Molecular Sciences, Departamento
de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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4
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Synthesis and structural characterization of some 1:1 adducts of silver(I) salts with (hindered) PR3 bases (R = phenyl, o-tolyl, cyclohexyl). Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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5
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Effendy, Healy PC, Marchetti F, Pettinari C, Pettinari R, Tombesi A, Skelton BW, White AH. Synthesis and structural characterization of some 1:1 and 1:2 adducts of silver(I) salts with hindered Pmes3, PPhmes2 and PPh2mes bases (Ph = phenyl, mes = 2,4,6-trimethylpheny1)). Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Marchetti F, Pettinari R, Verdicchio F, Tombesi A, Scuri S, Xhafa S, Olivieri L, Pettinari C, Choquesillo-Lazarte D, García-García A, Rodríguez Diéguez A, Galindo A. Role of hydrazone substituents in determining the nuclearity and antibacterial activity of Zn(II) complexes with pyrazolone-based hydrazones. Dalton Trans 2022; 51:14165-14181. [DOI: 10.1039/d2dt02430f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrazones and their metal derivatives are very important compounds in medicinal chemistry due to their reported variety of biological activities, such as antibacterial, antifungal and anticancer action. Five hydrazone-pyrazolone ligands...
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7
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Simple and Sensitive Multi-components Detection Using Synthetic Nitrogen-doped Carbon Dots Based on Soluble Starch. J Fluoresc 2021; 31:1379-1392. [PMID: 34156612 DOI: 10.1007/s10895-021-02764-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/01/2021] [Indexed: 10/21/2022]
Abstract
Although carbon dots (CDs) as fluorescent sensors have been widely exploited, multi-component detection using CDs without tedious surface modification is always a challenging task. Here, two kinds of nitrogen-doped CDs (NCD-m and NCD-o) based on soluble starch (SS) as carbon source were prepared through one-pot hydrothermal process using m-phenylenediamine and o-phenylenediamine as nitrogenous dopant respectively. Through fluorescence "on-off" mechanism of CDs, NCD-m and NCD-o could be used as a fluorescence sensor for detection of Fe 3+ and Ag + with LOD of 0.25 and 0.51 μM, respectively. Additionally, NCD-m could be used for indirect detection of ascorbic acid (AA) with LOD of 5.02 μM. Moreover, fluorescence intensity of NCD-m also exhibited the sensitivity to pH change from 2 to 13. More importantly, Both NCD-m and NCD-o had potential application for analysis of complicated real samples such as tap water, Vitamin C tablets and orange juice. Ultimately, the small size of NCD-m could contribute to reinforcing intracellular endocytosis, which allowed them to be used for bacteria imaging. Obviously, these easily obtainable nitrogen-doped CDs were able to be used for multi-components detection. Strategy for synthesis of nitrogen-doped carbon dots (NCDs) and a schematic for fabrication of as-prepared NCDs for detection of Fe 3+, Ag + and ascorbic acid (AA).
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8
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Braun S, Ilberg V, Langowski HC. Antimicrobial effectiveness of beverage containers made of silver doped PET. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110526] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Lu N, Chen Z, Zhang W, Yang G, Liu Q, Böttger R, Zhou S, Liu Y. Effect of silver ion implantation on antibacterial ability of polyethylene food packing films. Food Packag Shelf Life 2021. [DOI: 10.1016/j.fpsl.2021.100650] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Sehout I, Boulebd H, Boulcina R, Nemouchi S, Bendjeddou L, Bramki A, Merazig H, Debache A. Synthesis, crystal structure, Hirshfeld surface analysis, biological evaluation, DFT calculations, and in silico ADME analysis of 4-arylidene pyrazolone derivatives as promising antibacterial agents. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Fernandes TA, Costa IFM, Jorge P, Sousa AC, André V, Cerca N, Kirillov AM. Silver(I) Coordination Polymers Immobilized into Biopolymer Films for Antimicrobial Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:12836-12844. [PMID: 33705111 DOI: 10.1021/acsami.0c19446] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This study describes a template-mediated self-assembly synthesis, full characterization, and structural features of two new silver-based bioactive coordination polymers (CPs) and their immobilization into acrylated epoxidized soybean oil (ESOA) biopolymer films for antimicrobial applications. The 3D silver(I) CPs [Ag4(μ8-H2pma)2]n·4nH2O (1) and [Ag5(μ6-H0.5tma)2(H2O)4]n·2nH2O (2) were generated from AgNO3 and pyromellitic (H4pma) or trimesic (H3tma) acid, also using N,N'-dimethylethanolamine (Hdmea) as a template. Both 1 and 2 feature the intricate 3D layer-pillared structures driven by distinct polycarboxylate blocks. Topological analysis revealed binodal nets with the flu and tcj/hc topology in 1 and 2, respectively. These CPs were used for fabricating new hybrid materials, namely, by doping the [ESOA]n biopolymer films with very low amounts of 1 and 2 (0.05, 0.1, and 0.5%). Their antimicrobial activity and ability to impair bacterial biofilm formation were investigated in detail against both Gram-positive (Staphylococcus epidermidis and Staphylococcus aureus) and Gram-negative (Pseudomonas aeruginosa and Escherichia coli) bacteria. Both silver(I) CPs and derived biopolymer films showed activity against all the tested bacteria in a concentration-dependent manner. Compound 1 exhibited a more pronounced activity, especially in preventing biofilm growth, with mean bacterial load reductions ranging from 3.7 to 4.3 log against the four bacteria (99.99% bacterial eradication). The present work thus opens up antibiofilm applications of CP-doped biopolymers, providing new perspectives and very promising results for the design of functional biomaterials.
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Affiliation(s)
- Tiago A Fernandes
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Inês F M Costa
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Paula Jorge
- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Ana Catarina Sousa
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Área Departamental de Engenharia Química, ISEL-Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro, 1, 1959-007 Lisboa, Portugal
| | - Vânia André
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Nuno Cerca
- Centre of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal
| | - Alexander M Kirillov
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow 117198, Russian Federation
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12
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Scarpelli F, Crispini A, Giorno E, Marchetti F, Pettinari R, Di Nicola C, De Santo MP, Fuoco E, Berardi R, Alfano P, Caputo P, Policastro D, Oliviero Rossi C, Aiello I. Preparation and Characterization of Silver(I) Ethylcellulose Thin Films as Potential Food Packaging Materials. Chempluschem 2020; 85:426-440. [PMID: 32154993 DOI: 10.1002/cplu.201900681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 02/19/2020] [Indexed: 12/24/2022]
Abstract
Ag(I)-containing ethylcellulose (EC) films suitable as antbacterial packaging materials have been prepared and fully characterized. Different preparation methods, including the use of green casting solvents, are proposed. The Ag(I) acylpyrazolonato complexes, [Ag(Qpy,CF3 )(L)], L=benzylimidazole (Bzim) and L=ethylimidazole (EtimH), used as active additives, display different modes of interactions with EC, depending on their structural features. A thorough investigation of the EC liquid-crystalline lyotropic phase and its changes with the introduction of silver additives, has been conducted, revealing either the inclusion of complex molecules into the inner structure of the EC matrix or their dispersion on its surface. Moreover, the bactericidal activity of the prepared Ag(I) films seems to be related to the interaction between silver additives and the polymeric EC matrix. Indeed, the EC-2b films show a particularly good performance even with a low silver content, with a relative bacterial killing of about 100 %. Tests for Ag(I) migration have been performed by using three food stimulants under two assay conditions. Low values of silver release are recorded, particularly at low concentration of silver content, in the case of all new prepared Ag(I) films.
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Affiliation(s)
- Francesca Scarpelli
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Alessandra Crispini
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Eugenia Giorno
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Fabio Marchetti
- School of Science and Technology Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino (MC, Italy
| | - Riccardo Pettinari
- School of Pharmacy Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino (MC, Italy
| | - Corrado Di Nicola
- School of Science and Technology Chemistry Section, University of Camerino, Via S. Agostino 1, 62032, Camerino (MC, Italy
| | - Maria Penelope De Santo
- Dipartimento di Fisica, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Erica Fuoco
- Dipartimento di Fisica, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy
| | - Riccardo Berardi
- TiFQLab - Centro di sperimentazione ricerca e analisi applicate alle tecnologie alimentari e dell'acqua potabile - Department DIMES, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Pasquale Alfano
- TiFQLab - Centro di sperimentazione ricerca e analisi applicate alle tecnologie alimentari e dell'acqua potabile - Department DIMES, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Paolino Caputo
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Debora Policastro
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Cesare Oliviero Rossi
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
| | - Iolinda Aiello
- MAT-InLAB, Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy.,CNR NANOTEC-Istituto di Nanotecnologia U.O.S. Cosenza, 87036, Arcavacata di Rende (CS), Italy.,LASCAMM CR-INSTM Unità INSTM della Calabria, Università della Calabria, 87036, Arcavacata di Rende (CS, Italy
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13
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Tethering (Arene)Ru(II) Acylpyrazolones Decorated with Long Aliphatic Chains to Polystyrene Surfaces Provides Potent Antibacterial Plastics. MATERIALS 2020; 13:ma13030526. [PMID: 31978989 PMCID: PMC7040715 DOI: 10.3390/ma13030526] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 11/16/2022]
Abstract
The acylpyrazolone proligands HQR (HQR in general, in detail: HQCy = 1-phenyl-3-methyl-4-carbonylcyclohexyl-5-pyrazolone, 4-C(O)-phenyl, HQPh = 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone, HQC17 = 1-phenyl-3-methyl-4-stearoyl-5-pyrazolone, HQC17,Ph = 1-phenyl-3-stearyl-4-benzoyl-5-pyrazolone) were synthesized and reacted with (arene)Ru(II) acceptors affording complexes [(arene)Ru(QR)Cl] (arene = cymene (cym) or hexamethylbenzene (hmb)). The complexes were characterized by elemental analyses, thermogravimetric analysis-Differntial Thermal Analysis (TGA-DTA), IR spectroscopy, ESI-MS and 1H, and 13C NMR spectroscopy. Complexes [(arene)Ru(QR)Cl] where QR = QC17 and QC17,Ph, due to the long aliphatic chain in the ligand, afford nanometric dispersions in methanol via self-assembly into micellar aggregates of dimensions 50-200 nm. The antibacterial activity of the complexes was established against Escherichia coli and Staphylococcus aureus, those containing the ligands with a long aliphatic chain being the most effective. The complexes were immobilized on polystyrene by a simple procedure, and the resulting composite materials showed to be very effective against E. coli and S. aureus.
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Habib A, Iqbal MA, Bhatti HN, Kamal A, Kamal S. Synthesis of alkyl/aryl linked binuclear silver(I)-N-Heterocyclic carbene complexes and evaluation of their antimicrobial, hemolytic and thrombolytic potential. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2019.107670] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Tăbăcaru A, Pettinari C, Bușilă M, Dinică RM. New Antibacterial Silver(I) Coordination Polymers Based on a Flexible Ditopic Pyrazolyl-Type Ligand. Polymers (Basel) 2019; 11:polym11101686. [PMID: 31618948 PMCID: PMC6835455 DOI: 10.3390/polym11101686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/08/2019] [Accepted: 10/10/2019] [Indexed: 11/16/2022] Open
Abstract
In the last two decades, a tremendous amount of attention has been directed towards the design of antibacterial silver(I)-based materials, including coordination polymers (CPs) built up with a great variety of oxygen and nitrogen-containing ligands. Herein, a family of six new silver(I)-based CPs, having the general stoechiometric formula [Ag(H2DMPMB)(X)] (X = NO3, 1; CF3CO2, 2; CF3SO3, 3; BF4, 4; ClO4, 5; and PF6, 6) and incorporating the flexible ditopic pyrazolyl-type ligand 4,4'-bis((3,5-dimethyl-1H-pyrazol-4-yl)methyl)biphenyl (H2DMPMB), has been prepared by the chemical precipitation method involving the reaction of silver(I) salts with H2DMPMB in the 1:1 molar ratio, in alcohols, or acetonitrile at room temperature for two-hours. The new silver(I)-based polymeric materials were characterized by means of Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), and thermogravimetric analysis (TGA), allowing for the proposition that their structures comprise one-dimensional chains, with the silver(I) ions mostly assuming a T-shapped stereochemistry completed by the exo-bidentate ligands and counter-anions. The obtained silver(I) CPs showed a remarkable light insensitivity and stability in the air, are insoluble in water and in most common organic solvents, and possess appreciable thermal stabilities spanning the range 250-350 °C. The antibacterial activity of the obtained silver(I) CPs was tested against the Gram-negative bacteria Escherichia coli (E. coli) and Gram-positive bacteria Staphylococcus aureus (S. aureus) using the Tetrazolium/Formazan test (TTC), by measuring the bacterial viability at different time intervals. The complete reduction of both bacterial strains occurred after 24 h of exposure to all silver(I) CPs, the bacterial viability values for S. aureus reaching 8% for compounds 3, 5, and 6 after only two-hours.
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Affiliation(s)
- Aurel Tăbăcaru
- Faculty of Sciences and Environment, Department of Chemistry, Physics and Environment, "Dunarea de Jos" University of Galati, 111 Domneasca Street, 800201 Galați, Romania.
| | - Claudio Pettinari
- School of Pharmacy, University of Camerino, Via Madonna delle Carceri 9, 62032 Camerino MC, Italy.
| | - Mariana Bușilă
- Department of Materials Science and Engineering, Faculty of Engineering, "Dunarea de Jos" University of Galati, 111 Domneasca Street, 800201 Galați, Romania.
| | - Rodica Mihaela Dinică
- Faculty of Sciences and Environment, Department of Chemistry, Physics and Environment, "Dunarea de Jos" University of Galati, 111 Domneasca Street, 800201 Galați, Romania.
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16
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Scuri S, Petrelli F, Grappasonni I, Idemudia L, Marchetti F, Di Nicola C. Evaluation of the antimicrobial activity of novel composite plastics containing two silver (I) additives, acyl pyrazolonate and acyl pyrazolone. ACTA BIO-MEDICA : ATENEI PARMENSIS 2019; 90:370-377. [PMID: 31580329 PMCID: PMC7233731 DOI: 10.23750/abm.v90i3.8561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Public health systems today face the dual challenges of controlling infections and curbing the increase in antimicrobial resistance manifested in drug-resistant microorganisms in hospitals and elsewhere. In the last ten years, research has been conducted to develop new materials with antimicrobial properties to be used in medical devices, increasingly found to harbour critical nosocomial infections. METHODS Two next-generation composites using the antimicrobial qualities of silver were tested against Escherichia coli, Staphylococcus aureus and Candida albicans with the purpose of evaluating their antimicrobial and antifungal activity. These tests applied the standardized method according to ISO-2216: Plastics-Measurement of Antibacterial Activity on Plastics Surfaces. Testing was carried out using polyethylene (PE) enriched with AgNO3 as a positive control and PE as a negative control. RESULTS The antimicrobial activity of the composites proved to be between medium (bacteriostatic) and very good (bactericidal). In particular, PE2 showed the highest scores against all microorganisms, with values ranging from good to very good. Instead, PE1 had lower scores, with a value of medium for Escherichia coli and slight for Candida albicans. Statistical analysis carried out with the t-test for unpaired data showed a statistically significant difference between the positive control and the other polymers (p< .0001). CONCLUSIONS Based on our findings, we conclude that the test, conducted to ISO-2216 standards, could be extended to include fungal strains and that the new composites could be used to produce antimicrobial surfaces for medical devices, for example, intubation tubes, urinary catheters, vascular prostheses, and mechanical heart valves. This would reduce the risk of microbial contamination and biofilm formation, ensuring better health outcomes for patients treated with these devices. Further testing should be done to evaluate potential future applications of these composites and the possibility of adding fungal strains to the IS0-2216 standard.
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Xiao Y, Pan J, Wang D, Heise A, Lang M. Chemo-Enzymatic Synthesis of Poly(4-piperidine lactone- b-ω-pentadecalactone) Block Copolymers as Biomaterials with Antibacterial Properties. Biomacromolecules 2018; 19:2673-2681. [PMID: 29698599 DOI: 10.1021/acs.biomac.8b00296] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
With increasing troubles in bacterial contamination and antibiotic-resistance, new materials possessing both biocompatibility and antimicrobial efficacy are supposed to be developed for future biomedical application. Herein, we demonstrated a chemo-enzymatic ring opening polymerization (ROP) approach for block copolyester, that is, poly(4-benzyl formate piperidine lactone- b-ω-pentadecalactone) (PNPIL- b-PPDL), in a one-pot two-step process. Afterward, cationic poly(4-piperidine lactone- b-ω-pentadecalactone) (PPIL- b-PPDL) with pendent secondary amino groups was obtained via acidic hydrolysis of PNPIL- b-PPDL. The resulting cationic block copolyester exhibited high antibacterial activity against Gram negative E. coli and Gram positive S. aureus, while showed low toxicity toward NIH-3T3 cells. Moreover, the antibacterial property, cytotoxicity and degradation behavior could be tuned simply by variation of PPIL content. Therefore, we anticipate that such cationic block copolymers could potentially be applied as biomaterials for medicine or implants.
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Affiliation(s)
- Yan Xiao
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai , 200237 , China
| | - Jinghao Pan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai , 200237 , China
| | - Dong Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai , 200237 , China
| | - Andreas Heise
- Department of Pharmaceutical and Medicinal Chemistry , Royal College of Surgeons in Ireland , St. Stephens Green , Dublin 2 , Ireland
| | - Meidong Lang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering , East China University of Science and Technology , Shanghai , 200237 , China
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Marchetti F, Pettinari R, Di Nicola C, Pettinari C, Palmucci J, Scopelliti R, Riedel T, Therrien B, Galindo A, Dyson PJ. Synthesis, characterization and cytotoxicity of arene–ruthenium(ii) complexes with acylpyrazolones functionalized with aromatic groups in the acyl moiety. Dalton Trans 2018; 47:868-878. [DOI: 10.1039/c7dt04249c] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
DFT and NMR studies confirm the existence of two conformers in solution for complexes with bulky aromatic groups.
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Affiliation(s)
- Fabio Marchetti
- School of Science and Technology
- University of Camerino
- 62032 Camerino (MC)
- Italy
| | | | - Corrado Di Nicola
- School of Science and Technology
- University of Camerino
- 62032 Camerino (MC)
- Italy
| | | | - Jessica Palmucci
- School of Science and Technology
- University of Camerino
- 62032 Camerino (MC)
- Italy
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Tina Riedel
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Bruno Therrien
- Institut de Chimie
- Université de Neuchâtel
- CH-2000 Neuchâtel
- Switzerland
| | - Agustín Galindo
- Departamento de Química Inorgánica
- Facultad de Química
- Universidad de Sevilla
- 41071 Sevilla
- Spain
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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Méndez-Albores A, González-Arellano SG, Reyes-Vidal Y, Torres J, Ţălu Ş, Cercado B, Trejo G. Electrodeposited chrome/silver nanoparticle (Cr/AgNPs) composite coatings: Characterization and antibacterial activity. JOURNAL OF ALLOYS AND COMPOUNDS 2017. [DOI: 10.1016/j.jallcom.2017.03.226] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Pettinari C, Marchetti F, Mosca N, Tosi G, Drozdov A. Application of metal − organic frameworks. POLYM INT 2017. [DOI: 10.1002/pi.5315] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Claudio Pettinari
- School of Pharmacy-chemistry section; University of Camerino; Camerino Italy
| | - Fabio Marchetti
- School of Science and Technology-chemistry section; University of Camerino; Camerino Italy
| | - Nello Mosca
- School of Pharmacy-chemistry section; University of Camerino; Camerino Italy
| | - Giovanni Tosi
- School of Pharmacy-chemistry section; University of Camerino; Camerino Italy
| | - Andrei Drozdov
- Lomonosov Moscow State University; Moscow, 119991, Russian Federation, Department of Chemistry; Moscow Russian Federation
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