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Izzi M, Oliver M, Mateos H, Palazzo G, Cioffi N, Miró M. Analytical probing of membranotropic effects of antimicrobial copper nanoparticles on lipid vesicles as membrane models. Nanoscale Adv 2023; 5:6533-6541. [PMID: 38024310 PMCID: PMC10662242 DOI: 10.1039/d3na00608e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023]
Abstract
Copper nanoparticles (CuNPs) are antimicrobial agents that are increasingly being used in several real-life goods. However, concerns are arising about their potential toxicity and thus, appropriate legislation is being issued in various countries. In vitro exploration of the permeability and the distribution of nanoparticles in cell membranes should be explored as the first step towards the investigation of the toxicity mechanisms of metal nanoantimicrobials. In this work, phosphatidylcholine-based large unilamellar vesicles have been explored as mimics of cellular membranes to investigate the effect of ultra-small CuNPs on the physicochemical features of phospholipid membranes. 4 nm-sized CuNPs were synthesized by a wet-chemical route that involves glutathione as a stabilizer, with further characterization by UV-vis absorption spectroscopy, fluorescence spectroscopy, transmission electron microscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectroscopy. Two fluorescent membrane probes bearing naphthalene moieties (laurdan and prodan) were used to monitor the bilayer structure and dynamics, as well as to demonstrate the strong membranotropic effects of CuNPs. The fluorescence spectroscopic studies were supported by dynamic light scattering (DLS) measurements and the calcein leakage assay. Additionally, the degree of perturbation of the phospholipid bilayer by CuNPs was compared against that of Cu2+ ions, the latter resulting in negligible effects. The findings suggested that CuNPs are able to damage the phospholipid membranes, leading to their agglomeration or disruption.
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Affiliation(s)
- Margherita Izzi
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Miquel Oliver
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands Carretera de Valldemossa km 7.5 E-07122 Palma de Mallorca Spain
| | - Helena Mateos
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Gerardo Palazzo
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari Aldo Moro Via Orabona, 4 70126 Bari Italy
| | - Manuel Miró
- FI-TRACE Group, Department of Chemistry, University of the Balearic Islands Carretera de Valldemossa km 7.5 E-07122 Palma de Mallorca Spain
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Hossain SI, Kukushkina EA, Izzi M, Sportelli MC, Picca RA, Ditaranto N, Cioffi N. A Review on Montmorillonite-Based Nanoantimicrobials: State of the Art. Nanomaterials (Basel) 2023; 13:nano13050848. [PMID: 36903726 PMCID: PMC10005688 DOI: 10.3390/nano13050848] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 06/10/2023]
Abstract
One of the crucial challenges of our time is to effectively use metal and metal oxide nanoparticles (NPs) as an alternative way to combat drug-resistant infections. Metal and metal oxide NPs such as Ag, Ag2O, Cu, Cu2O, CuO, and ZnO have found their way against antimicrobial resistance. However, they also suffer from several limitations ranging from toxicity issues to resistance mechanisms by complex structures of bacterial communities, so-called biofilms. In this regard, scientists are urgently looking for convenient approaches to develop heterostructure synergistic nanocomposites which could overcome toxicity issues, enhance antimicrobial activity, improve thermal and mechanical stability, and increase shelf life. These nanocomposites provide a controlled release of bioactive substances into the surrounding medium, are cost effective, reproducible, and scalable for real life applications such as food additives, nanoantimicrobial coating in food technology, food preservation, optical limiters, the bio medical field, and wastewater treatment application. Naturally abundant and non-toxic Montmorillonite (MMT) is a novel support to accommodate NPs, due to its negative surface charge and control release of NPs and ions. At the time of this review, around 250 articles have been published focusing on the incorporation of Ag-, Cu-, and ZnO-based NPs into MMT support and thus furthering their introduction into polymer matrix composites dominantly used for antimicrobial application. Therefore, it is highly relevant to report a comprehensive review of Ag-, Cu-, and ZnO-modified MMT. This review provides a comprehensive overview of MMT-based nanoantimicrobials, particularly dealing with preparation methods, materials characterization, and mechanisms of action, antimicrobial activity on different bacterial strains, real life applications, and environmental and toxicity issues.
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Affiliation(s)
- Syed Imdadul Hossain
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
| | - Ekaterina A. Kukushkina
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
| | - Margherita Izzi
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
| | | | - Rosaria Anna Picca
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
| | - Nicoletta Ditaranto
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari Aldo Moro, Via E. Orabona 4, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o, Department of Chemistry, Via Orabona 4, 70125 Bari, Italy
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Izzi M, Chiara Sportelli M, Anna Picca R, Cioffi N. Electrochemical Synthesis and Analytical Characterization of Hybrid Zinc/Calcium Antimicrobial Nano‐Oxides for Cultural Heritage Applications. ChemElectroChem 2023. [DOI: 10.1002/celc.202201132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Margherita Izzi
- Chemistry Department University of Bari Aldo Moro Via E. Orabona 4 Bari 70125 Italy
- Chemistry Dept. of University of Bari CSGI (Center for Colloid and Surface Science) Via E. Orabona 4 Bari 70125 Italy
| | - Maria Chiara Sportelli
- Chemistry Department University of Bari Aldo Moro Via E. Orabona 4 Bari 70125 Italy
- Chemistry Dept. of University of Bari CSGI (Center for Colloid and Surface Science) Via E. Orabona 4 Bari 70125 Italy
| | - Rosaria Anna Picca
- Chemistry Department University of Bari Aldo Moro Via E. Orabona 4 Bari 70125 Italy
- Chemistry Dept. of University of Bari CSGI (Center for Colloid and Surface Science) Via E. Orabona 4 Bari 70125 Italy
| | - Nicola Cioffi
- Chemistry Department University of Bari Aldo Moro Via E. Orabona 4 Bari 70125 Italy
- Chemistry Dept. of University of Bari CSGI (Center for Colloid and Surface Science) Via E. Orabona 4 Bari 70125 Italy
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Sportelli MC, Picca RA, Izzi M, Cioffi N. Green Synthesis and Analytical Characterization of Core-Shell Copper Sub-Microparticles. Chemistry 2023; 29:e202203510. [PMID: 36597693 DOI: 10.1002/chem.202203510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/03/2023] [Accepted: 01/03/2023] [Indexed: 01/05/2023]
Abstract
This study demonstrates a simple and reproducible approach to synthesize green core-shell copper sub-microparticles stabilized by poly(n-vinyl)pyrrolidone (PVP). Cu@PVP colloids were here prepared using copper sulfate pentahydrate as precursor and glucose as reducing agent. The presence of PVP in the synthetic medium eliminates the need for an inert atmosphere during the process, thus simplifying the whole method. Both the morphology and the spectroscopic properties of Cu@PVP colloids were investigated by transmission electron microscopy, and infrared, UV-Vis and X-ray photoelectron spectroscopies. Size distributions and average shell thickness were obtained by statistical analysis on TEM micrographs, and spectroscopies demonstrated the formation of a PVP layer around the copper core. The produced colloids were employed in composite thin films for potential antimicrobial application, in association with a highly-recyclable polymer: polycarbonate (4,4'-(1-methylethylidene)bis(phenol)).
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Affiliation(s)
- Maria Chiara Sportelli
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona, 4, 70125, Bari, BA, Italy.,Institute of Photonics and Nanotechnology - National Research Council (IFN-CNR), Physics Department "M. Merlin", University of Bari Aldo Moro, via Amendola, 173., 70126, Bari, BA, Italy
| | - Rosaria Anna Picca
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona, 4, 70125, Bari, BA, Italy.,CSGI (Center for Colloid and Surface Science) Bari Unit, University of Bari Aldo Moro, Via E. Orabona, 4., 70125, Bari, BA, Italy
| | - Margherita Izzi
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona, 4, 70125, Bari, BA, Italy.,CSGI (Center for Colloid and Surface Science) Bari Unit, University of Bari Aldo Moro, Via E. Orabona, 4., 70125, Bari, BA, Italy
| | - Nicola Cioffi
- Department of Chemistry, University of Bari Aldo Moro, Via E. Orabona, 4, 70125, Bari, BA, Italy.,CSGI (Center for Colloid and Surface Science) Bari Unit, University of Bari Aldo Moro, Via E. Orabona, 4., 70125, Bari, BA, Italy
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Sportelli MC, Izzi M, Kukushkina EA, Hossain SI, Picca RA, Ditaranto N, Cioffi N. Can Nanotechnology and Materials Science Help the Fight against SARS-CoV-2? Nanomaterials (Basel) 2020; 10:E802. [PMID: 32326343 PMCID: PMC7221591 DOI: 10.3390/nano10040802] [Citation(s) in RCA: 133] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/17/2022]
Abstract
Since 2004, we have been developing nanomaterials with antimicrobial properties, the so-called nanoantimicrobials. When the coronavirus disease 2019 (COVID-19) emerged, we started investigating new and challenging routes to nanoantivirals. The two fields have some important points of contact. We would like to share with the readership our vision of the role a (nano)materials scientist can play in the fight against the COVID-19 pandemic. As researchers specifically working on surfaces and nanomaterials, in this letter we underline the importance of nanomaterial-based technological solutions in several aspects of the fight against the virus. While great resources are understandably being dedicated to treatment and diagnosis, more efforts could be dedicated to limit the virus spread. Increasing the efficacy of personal protection equipment, developing synergistic antiviral coatings, are only two of the cases discussed. This is not the first nor the last pandemic: our nanomaterials community may offer several technological solutions to challenge the ongoing and future global health emergencies. Readers' feedback and suggestions are warmly encouraged.
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Affiliation(s)
- Maria Chiara Sportelli
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
- IFN-CNR, Physics Department “M. Merlin”, Bari, Italy, via Amendola 173, 70126 Bari, Italy
- CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Margherita Izzi
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
| | - Ekaterina A. Kukushkina
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
| | - Syed Imdadul Hossain
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
| | - Rosaria Anna Picca
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
- CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Nicoletta Ditaranto
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
- CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
| | - Nicola Cioffi
- Chemistry Department, University of Bari “Aldo Moro”, via E. Orabona 4, 70126 Bari, Italy; (M.C.S.); (M.I.); (E.A.K.); (S.I.H.); (R.A.P.); (N.D.)
- CSGI (Center for Colloid and Surface Science) c/o Dept. Chemistry, via Orabona 4, 70125 Bari, Italy
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Izzi M, Sportelli MC, Tursellino L, Palazzo G, Picca RA, Cioffi N, López Lorente ÁI. Gold Nanoparticles Synthesis Using Stainless Steel as Solid Reductant: A Critical Overview. Nanomaterials (Basel) 2020; 10:nano10040622. [PMID: 32230948 PMCID: PMC7221709 DOI: 10.3390/nano10040622] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
Gold nanoparticles (AuNPs) were produced using stainless steel as a solid reductant to assist the synthesis of metal NPs, using HAuCl4 as a precursor. This method is very easy, quick, and cost-effective, allowing the synthesis of highly stable NPs without additional capping agents. However, the reaction mechanism is still under debate. In order to contribute to the investigation of the synthesis of AuNPs using stainless steel, different experimental conditions were tested. Cl− concentration, pH of the precursor solution, as well as stainless steel composition were systematically changed. The syntheses were performed recording the open circuit potential to potentiometrically explore the electrochemical properties of the system, under operando conditions. Spectroscopic and morphological characterizations were carried out along with potentiometric monitoring, aiming at correlating the synthesis parameters with the AuNPs characteristics. As a result, an overview of the process features, and of its most reasonable mechanism were obtained.
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Affiliation(s)
- Margherita Izzi
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
| | - Maria C. Sportelli
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
| | - Luciana Tursellino
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
| | - Gerardo Palazzo
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
| | - Rosaria A. Picca
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
- Correspondence: (R.A.P.); (N.C.)
| | - Nicola Cioffi
- Department of Chemistry, University of Bari “Aldo Moro”, Via Orabona, 4, 70126 Bari, Italy; (M.I.); (M.C.S.); (L.T.); (G.P.)
- Correspondence: (R.A.P.); (N.C.)
| | - Ángela I. López Lorente
- Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUIQFN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Córdoba, Spain;
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Sportelli MC, Izzi M, Volpe A, Lacivita V, Clemente M, Di Franco C, Conte A, Del Nobile MA, Ancona A, Cioffi N. A new nanocomposite based on LASiS-generated CuNPs as a preservation system for fruit salads. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100422] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Izzi M, Sportelli MC, Ditaranto N, Picca RA, Innocenti M, Sabbatini L, Cioffi N. Pros and Cons of Sacrificial Anode Electrolysis for the Preparation of Transition Metal Colloids: A Review. ChemElectroChem 2019. [DOI: 10.1002/celc.201901837] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Margherita Izzi
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
| | - Maria Chiara Sportelli
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
- CSGI (Center for Colloid and Surface Science) c/o Chemistry Dept.University of Bari Via Orabona 4 70125- Bari Italy
| | - Nicoletta Ditaranto
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
- CSGI (Center for Colloid and Surface Science) c/o Chemistry Dept.University of Bari Via Orabona 4 70125- Bari Italy
| | - Rosaria Anna Picca
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
- CSGI (Center for Colloid and Surface Science) c/o Chemistry Dept.University of Bari Via Orabona 4 70125- Bari Italy
| | - Massimo Innocenti
- CSGI (Center for Colloid and Surface Science) c/o Chemistry Dept.University of Bari Via Orabona 4 70125- Bari Italy
- Chemistry DeptUniversity of Florence Via Lastruccia, 3 50019- Sesto Fiorentino Italy
| | - Luigia Sabbatini
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
| | - Nicola Cioffi
- Chemistry Dept.University of Bari Via Orabona 4 70125 Bari Italy
- CSGI (Center for Colloid and Surface Science) c/o Chemistry Dept.University of Bari Via Orabona 4 70125- Bari Italy
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Sportelli MC, Izzi M, Volpe A, Clemente M, Picca RA, Ancona A, Lugarà PM, Palazzo G, Cioffi N. The Pros and Cons of the Use of Laser Ablation Synthesis for the Production of Silver Nano-Antimicrobials. Antibiotics (Basel) 2018; 7:E67. [PMID: 30060553 PMCID: PMC6164857 DOI: 10.3390/antibiotics7030067] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/23/2018] [Accepted: 07/27/2018] [Indexed: 12/13/2022] Open
Abstract
Silver nanoparticles (AgNPs) are well-known for their antimicrobial effects and several groups are proposing them as active agents to fight antimicrobial resistance. A wide variety of methods is available for nanoparticle synthesis, affording a broad spectrum of chemical and physical properties. In this work, we report on AgNPs produced by laser ablation synthesis in solution (LASiS), discussing the major features of this approach. Laser ablation synthesis is one of the best candidates, as compared to wet-chemical syntheses, for preparing Ag nano-antimicrobials. In fact, this method allows the preparation of stable Ag colloids in pure solvents without using either capping and stabilizing agents or reductants. LASiS produces AgNPs, which can be more suitable for medical and food-related applications where it is important to use non-toxic chemicals and materials for humans. In addition, laser ablation allows for achieving nanoparticles with different properties according to experimental laser parameters, thus influencing antibacterial mechanisms. However, the concentration obtained by laser-generated AgNP colloids is often low, and it is hard to implement them on an industrial scale. To obtain interesting concentrations for final applications, it is necessary to exploit high-energy lasers, which are quite expensive. In this review, we discuss the pros and cons of the use of laser ablation synthesis for the production of Ag antimicrobial colloids, taking into account applications in the food packaging field.
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Affiliation(s)
- Maria Chiara Sportelli
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
- Institute of Photonics and nanotechnology-National Research Council (IFN-CNR), Physics Department "M. Merlin", Bari, Italy, via Amendola 173, 70126 Bari, Italy.
| | - Margherita Izzi
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
| | - Annalisa Volpe
- Institute of Photonics and nanotechnology-National Research Council (IFN-CNR), Physics Department "M. Merlin", Bari, Italy, via Amendola 173, 70126 Bari, Italy.
| | - Maurizio Clemente
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
| | - Rosaria Anna Picca
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
| | - Antonio Ancona
- Institute of Photonics and nanotechnology-National Research Council (IFN-CNR), Physics Department "M. Merlin", Bari, Italy, via Amendola 173, 70126 Bari, Italy.
| | - Pietro Mario Lugarà
- Institute of Photonics and nanotechnology-National Research Council (IFN-CNR), Physics Department "M. Merlin", Bari, Italy, via Amendola 173, 70126 Bari, Italy.
| | - Gerardo Palazzo
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
| | - Nicola Cioffi
- Dipartimento di Chimica, Università degli Studi di Bari "Aldo Moro", via E. Orabona 4, 70126 Bari, Italy.
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Balucani M, Kholostov K, Nenzi P, Crescenzi R, Ciarniello D, Bernardi D, Serenelli L, Izzi M, Tucci M. New Selective Processing Technique for Solar Cells. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.egypro.2013.11.088] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Iliceto S, Caiati C, Ricci A, Amico A, D'Ambrosio G, Ferri GM, Izzi M, Lagioia R, Rizzon P. Prediction of cardiac events after uncomplicated myocardial infarction by cross-sectional echocardiography during transesophageal atrial pacing. Int J Cardiol 1990; 28:95-103. [PMID: 2365537 DOI: 10.1016/0167-5273(90)90013-u] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Atrial pacing can safely be utilized shortly after myocardial infarction. To evaluate the prognostic value of wall motion abnormalities induced by such pacing 83 consecutive patients with recent uncomplicated myocardial infarction underwent transthoracic cross-sectional echocardiography during transesophageal atrial pacing and upright bicycle exercise stress test. Patients were followed-up for 14 +/- 5 months. During the atrial pacing and the echocardiography, patients were defined at high risk if abnormalities of wall motion were detected in left ventricular regions remote from the infarcted area. Then, during the exercise stress test, high risk patients were those with ST segment depression greater than or equal to 1 mm. On the other hand, patients were considered to be at low risk if they had no abnormalities of wall motion during atrial pacing in remote regions or, in the case of the stress test, if they did not develop ST depression greater than or equal to 1 mm. Of the 83 patients, 21 had major cardiac events during the period of follow-up. Cardiac events occurred in 15/23 (65%) and 5/60 (8%, P less than 0.001) patients assigned to the groups adjudged to be at high and low risk, respectively, on the basis of echocardiographic results. Exercise testing was less reliable in identifying patients at risk of future cardiac events. Major events occurred in only 6 of the 19 patients with a positive stress test (32%, P less than 0.05 vs positive stress echocardiography) and in 14 of the 64 patients with a negative exercise stress test (22%, P = NS vs positive exercise stress test, P less than 0.05 vs negative atrial pacing echocardiography).
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Affiliation(s)
- S Iliceto
- Division of Cardiology, University of Bari, Italy
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Abstract
Two-dimensional echocardiography (2D echo) and Doppler were performed in a group of patients who had a high probability of having right ventricular (RV) dysplasia (left bundle branch block arrhythmias, no signs of cardiopulmonary diseases) and in a group of age-matched normals. 2D echo showed RV morphofunctional abnormalities (free wall and apical irregularities, wall motion abnormalities) in 25% of patients with suspected RV dysplasia but in none of the normals. Concordance with angiography was good (75% of cases with positive 2D echo study had a positive angiography, while only 33% of the patients with suspected RV dysplasia and negative 2D echo had a positive angiography). In patients with high probability of RV dysplasia (positive 2D echo and angiography) left ventricular filling was similar to that of normal subjects whereas RV filling was markedly rearranged, as demonstrated by the significant decrease in RV early-to-atrial peak flow velocities.
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Affiliation(s)
- S Iliceto
- Division of Cardiology, University of Bari, Italy
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Meniconi R, Izzi M. [Psammoma bodies in the cervico-vaginal smear. Association with bilateral ovarian carcinoma]. Pathologica 1982; 74:691-5. [PMID: 7167280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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15
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Izzi M. [Effect of combination of vitamin C and adrenocortical extract in ascorbic desaturation asthenia]. Minerva Med 1972; 63:1546-53. [PMID: 5024455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Izzi M. [Treatment of decubitus ulcers in the aged patient with a new antibiotic. Clinico-therapeutic study]. G Gerontol 1968; 16:1301-5. [PMID: 5731974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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17
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Izzi M. [Proposal for a type of home geriatric nursing assistance]. G Gerontol 1967; 15:429-34. [PMID: 5606933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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18
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Izzi M. [Respiratory function in the aged person over 80, studied with the 3 apnea test, before and after administration of an oral pneumokinetic]. G Gerontol 1966; 14:425-40. [PMID: 4382460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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