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Parades-Aguilar J, Calderon K, Agustin-Salazar S, Cerruti P, Ambrogi V, Gamez-Meza N, Medina-Juarez LA. Isolation and identification of metallotolerant bacteria with a potential biotechnological application. Sci Rep 2024; 14:3663. [PMID: 38351239 PMCID: PMC10864330 DOI: 10.1038/s41598-024-54090-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 02/08/2024] [Indexed: 02/16/2024] Open
Abstract
Mining has led to severe environmental pollution in countries with exhaustive mining production and inadequate industrial waste regulation. Microorganisms in contaminated sites, like mine tailings, have adapted to high concentrations of heavy metals, developing the capacity of reducing or removing them from these environments. Therefore, it is essential to thoroughly characterize bacteria present in these sites to find different ways of bioremediation. In this regard, in this study, an enrichment and isolation procedure were performed to isolate bacteria with lower nutritional requirements and high tolerance to Cu(II) and Fe(II) from two Sonoran River basin mining tails. Two Staphylococcus species and a Microbacterium ginsengisoli strain were isolated and identified from the San Felipe de Jesús mining tail. Also, three strains were isolated from the Nacozari de García mining tail: Burkholderia cenocepacia, Sphingomonas sp. and Staphylococcus warneri. Significant microbiological differences were found between the two sites. All these species exhibited tolerance up to 300 mg/L for Cu (II)-Fe (II) solutions, indicating their capacity to grow in these conditions. Moreover, a consortium of isolated bacteria was immobilized in two different biocomposites and the biocomposite with larger pore size achieved greater bacterial immobilization showcasing the potential of these bacteria in biotechnological applications.
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Affiliation(s)
- Jonathan Parades-Aguilar
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, Entre Reforma y Sahuaripa, Edificio 7G, Col. Centro, C.P. 83000, Hermosillo, Sonora, Mexico
| | - Kadiya Calderon
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, Entre Reforma y Sahuaripa, Edificio 7G, Col. Centro, C.P. 83000, Hermosillo, Sonora, Mexico.
| | - Sarai Agustin-Salazar
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, NA, Italy
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078, Pozzuoli, NA, Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Tecchio 80, 80125, Naples, Italy
| | - Nohemi Gamez-Meza
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, Entre Reforma y Sahuaripa, Edificio 7G, Col. Centro, C.P. 83000, Hermosillo, Sonora, Mexico
| | - Luis Angel Medina-Juarez
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, Entre Reforma y Sahuaripa, Edificio 7G, Col. Centro, C.P. 83000, Hermosillo, Sonora, Mexico.
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Ambrogi V, Bolli E, Ceccarelli M, Kaciulis S, Mezzi A, Montanari R, Pakhomova E, Richetta M, Varone A. Surface modifications of biodegradable AZ31 alloy after immersion in physiological solution. SURF INTERFACE ANAL 2023. [DOI: 10.1002/sia.7195] [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: 01/20/2023]
Affiliation(s)
- V. Ambrogi
- Dipartimento di Scienze Chirurgiche, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
| | - E. Bolli
- Dipartimento di Ingegneria Industriale, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
- ISMN ‐ CNR
| | - M. Ceccarelli
- Dipartimento di Ingegneria Industriale, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
| | | | | | - R. Montanari
- Dipartimento di Ingegneria Industriale, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
| | - E. Pakhomova
- Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Università di Cagliari Via Marengo 2 09123 Cagliari Italy
| | - M. Richetta
- Dipartimento di Ingegneria Industriale, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
| | - A. Varone
- Dipartimento di Ingegneria Industriale, Università di Roma “Tor Vergata” Via del Politecnico 1 00133 Roma Italy
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Agustin-Salazar S, Ricciulli M, Ambrogi V, Cerruti P, Scarinzi G. Thermomechanical Properties and Biodegradation Behavior of Itaconic Anhydride-Grafted PLA/Pecan Nutshell Biocomposites. Polymers (Basel) 2022; 14:polym14245532. [PMID: 36559900 PMCID: PMC9785769 DOI: 10.3390/polym14245532] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/07/2022] [Accepted: 12/10/2022] [Indexed: 12/23/2022] Open
Abstract
The use of lignocellulose-rich biowaste as reinforcing filler in biodegradable polymers represents a sustainable option to obtain cost-effective bio-based materials to be used for several applications. In addition, the scarce polymer-biofiller interaction can be improved by reactive functionalization of the matrix. However, the obtained biocomposites might show high thermal deformability and possibly a slow biodegradation rate. In this work, polylactic acid (PLA) was first chemically modified with itaconic anhydride, and then biocomposites containing 50 wt.% of pecan (Carya illinoinensis) nutshell (PNS) biowaste were prepared and characterized. Their physical and morphological properties were determined, along with their biodegradation behavior in soil. Moreover, the effects of two environmentally friendly physical treatments, namely ball-milling of the filler and thermal annealing on biocomposites, were assessed. Grafting increased PLA thermal-oxidative stability and crystallinity. The latter was further enhanced by the presence of PNS, achieving a 30% overall increase compared to the plain matrix. Accordingly, the biocomposites displayed mechanical properties comparable to those of the plain matrix. Thermal annealing dramatically increased the mechanical and thermomechanical properties of all materials, and the heat deflection temperature of the biocomposites dramatically increased up to 60 °C with respect to the non-annealed samples. Finally, PNS promoted PLA biodegradation, triggering the swelling of the composites under soil burial, and accelerating the removal of the polymer amorphous phase. These results highlight the potential of combining natural fillers and environmentally benign physicochemical treatments to tailor the properties of PLA biocomposites. The high biofiller content used in this work, in conjunction with the chemical and physico-mechanical treatments applied, increased the thermal, mechanical, and thermomechanical performance of PLA biocomposites while improving their biodegradation behavior. These outcomes allow for widening the application field of PLA biocomposites in those areas requiring a stiff and lightweight material with low deformability and faster biodegradability.
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Affiliation(s)
- Sarai Agustin-Salazar
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- Department of Chemical and Metallurgical Engineering (DIQyM), University of Sonora, Building 5B, Del Conocimiento, Centro, Hermosillo C.P. 83000, Sonora, Mexico
- Correspondence: (S.A.-S.); (P.C.)
| | - Marco Ricciulli
- Department of Chemical, Materials and Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Veronica Ambrogi
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- Department of Chemical, Materials and Production Engineering (DICMAPI), University of Naples Federico II, Piazzale Tecchio 80, 80125 Naples, Italy
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Gaetano Previati, 1/E, 23900 Lecco, Italy
- Correspondence: (S.A.-S.); (P.C.)
| | - Gennaro Scarinzi
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli, Italy
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Marotta A, Causa A, Salzano de Luna M, Ambrogi V, Filippone G. Tuning the Morphology of HDPE/PP/PET Ternary Blends by Nanoparticles: A Simple Way to Improve the Performance of Mixed Recycled Plastics. Polymers (Basel) 2022; 14:polym14245390. [PMID: 36559757 PMCID: PMC9782910 DOI: 10.3390/polym14245390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Due to a very low mixing entropy, most of the polymer pairs are immiscible. As a result, mixing polymers of different natures in a typical mechanical recycling process leads to materials with multiple interfaces and scarce interfacial adhesion and, consequently, with unacceptably low mechanical properties. Adding nanoparticles to multiphase polymeric matrices represents a viable route to mitigate this drawback of recycled plastics. Here, we use low amounts of organo-modified clay (Cloisite® 15A) to improve the performance of a ternary blend made of high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephtalate (PET). Rather than looking for the inherent reinforcing action of the nanofiller, this goal is pursued by using nanoparticles as a clever means to manipulate the micro-scale arrangement of the polymer phases. Starting from theoretical calculations, we obtained a radical change in the blend microstructure upon the addition of only 2-wt.% of nanoclay, with the obtaining of a finer morphology with an intimate interpenetration of the polymeric phases. Rather than on flexural and impact properties, this microstructure, deliberately promoted by nanoparticles, led to a substantial increase (>50 °C) of a softening temperature conventionally defined from dynamic-mechanical measurements.
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Affiliation(s)
- Angela Marotta
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale (INSTM Consortium–UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
| | - Andrea Causa
- Pirelli Tyre S. p. A., R&D, Viale Piero e Alberto Pirelli 25, 20126 Milan, Italy
| | - Martina Salzano de Luna
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale (INSTM Consortium–UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
| | - Veronica Ambrogi
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale (INSTM Consortium–UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
| | - Giovanni Filippone
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale (INSTM Consortium–UdR Naples), University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy
- Correspondence:
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Marotta A, Salzano de Luna M, D'Avino A, Fornaro M, Filippone G, Ambrogi V. Mechanical properties and reprocessability of
Diels‐Alder
‐based reversible networks from furan‐modified resins. J Appl Polym Sci 2022. [DOI: 10.1002/app.52796] [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: 11/08/2022]
Affiliation(s)
- Angela Marotta
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
| | - Martina Salzano de Luna
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
| | - Amalia D'Avino
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
| | - Mattia Fornaro
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
| | - Giovanni Filippone
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials, and Production Engineering (INSTM Consortium−UdR Naples) University of Naples Federico II Naples Italy
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6
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Li Y, Liu T, Ambrogi V, Rios O, Xia M, He W, Yang Z. Liquid Crystalline Elastomers Based on Click Chemistry. ACS Appl Mater Interfaces 2022; 14:14842-14858. [PMID: 35319184 DOI: 10.1021/acsami.1c21096] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Liquid crystalline elastomers (LCEs) have emerged as an important class of functional materials that are suitable for a wide range of applications, such as sensors, actuators, and soft robotics. The unique properties of LCEs originate from the combination between liquid crystal and elastomeric network. The control of macroscopic liquid crystalline orientation and network structure is crucial to realizing the useful functionalities of LCEs. A variety of chemistries have been developed to fabricate LCEs, including hydrosilylation, free radical polymerization of acrylate, and polyaddition of epoxy and carboxylic acid. Over the past few years, the use of click chemistry has become a more robust and energy-efficient way to construct LCEs with desired structures. This article provides an overview of emerging LCEs based on click chemistries, including aza-Michael addition between amine and acrylate, radical-mediated thiol-ene and thiol-yne reactions, base-catalyzed thiol-acrylate and thiol-epoxy reactions, copper-catalyzed azide-alkyne cycloaddition, and Diels-Alder cycloaddition. The similarities and differences of these reactions are discussed, with particular attention focused on the strengths and limitations of each reaction for the preparation of LCEs with controlled structures and orientations. The compatibility of these reactions with the traditional and emerging processing techniques, such as surface alignment and additive manufacturing, are surveyed. Finally, the challenges and opportunities of using click chemistry for the design of LCEs with advanced functionalities and applications are discussed.
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Affiliation(s)
- Yuzhan Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Tuan Liu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Napoli 80125, Italy
| | - Orlando Rios
- Department of Materials Science and Engineering, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Min Xia
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Wanli He
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhou Yang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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7
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Agustin-Salazar S, Ricciulli M, Ambrogi V, Cerruti P, Scarinzi G. Effect of thermal annealing and filler ball-milling on the properties of highly filled polylactic acid/pecan nutshell biocomposites. Int J Biol Macromol 2022; 200:350-361. [PMID: 34998889 DOI: 10.1016/j.ijbiomac.2021.12.101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 07/01/2021] [Revised: 11/23/2021] [Accepted: 12/16/2021] [Indexed: 01/07/2023]
Abstract
Biodegradable polymer composites reinforced with agri-food lignocellulosic biowaste represent cost-effective and sustainable materials potentially able to replace traditional composites for structural, household, and packaging applications. Herein, the preparation of polylactic acid (PLA)/pecan (Carya illinoinensis) nutshell (PNS) biocomposites at high filler loading (50 wt%) is reported, alongside the effect of two environmentally friendly physical treatments, namely ball-milling of the filler and thermal annealing on biocomposites. PNS enhanced the thermal stability, the viscoelastic response, and the crystallinity of the polymer. Furthermore, filler ball-milling also increased the melt fluidity of the biocomposites, potentially improving melt processing. Finally, the presence of PNS remarkably enhanced the effect of thermal annealing in the compounds. In particular, heat deflection temperature of the biocomposites dramatically increased, up to 60 °C with respect to the non-annealed samples. Overall, these results emphasize the potential of combining natural fillers and environmentally benign physical treatments to tailor the properties of PLA biocomposites, especially for those applications which require a stiff and lightweight material with low deformability.
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Affiliation(s)
- Sarai Agustin-Salazar
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy; Department of Chemical and Metallurgical Engineering (DIQyM), University of Sonora, Building 5B, Del Conocimiento, Centro, C.P. 83000, Hermosillo, Sonora, Mexico.
| | - Marco Ricciulli
- University of Naples Federico II, Department of Chemical, Materials and Production Engineering (DICMAPI), Piazzale Tecchio 80, 80125 Naples, Italy
| | - Veronica Ambrogi
- University of Naples Federico II, Department of Chemical, Materials and Production Engineering (DICMAPI), Piazzale Tecchio 80, 80125 Naples, Italy
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy; Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Gaetano Previati, 1/E, 23900 Lecco, Italy.
| | - Gennaro Scarinzi
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy
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Sagnelli D, Calabrese M, Kaczmarczyk O, Rippa M, Vestri A, Marchesano V, Kortsen K, Cuzzucoli Crucitti V, Villani F, Loffredo F, Borriello C, Nenna G, Cocca M, Ambrogi V, Matczyszyn K, Simoni F, Petti L. Photo-Responsivity Improvement of Photo-Mobile Polymers Actuators Based on a Novel LCs/Azobenzene Copolymer and ZnO Nanoparticles Network. Nanomaterials (Basel) 2021; 11:nano11123320. [PMID: 34947671 PMCID: PMC8705796 DOI: 10.3390/nano11123320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/28/2021] [Accepted: 12/01/2021] [Indexed: 11/25/2022]
Abstract
The efficiency of photomobile polymers (PMP) in the conversion of light into mechanical work plays a fundamental role in achieving cutting-edge innovation in the development of novel applications ranging from energy harvesting to sensor approaches. Because of their photochromic properties, azobenzene monomers have been shown to be an efficient material for the preparation of PMPs with appropriate photoresponsivity. Upon integration of the azobenzene molecules as moieties into a polymer, they act as an engine, allowing fast movements of up to 50 Hz. In this work we show a promising approach for integrating ZnO nanoparticles into a liquid crystalline polymer network. The addition of such nanoparticles allows the trapping of incoming light, which acts as diffusive points in the polymer matrix. We characterized the achieved nanocomposite material in terms of thermomechanical and optical properties and finally demonstrated that the doped PMP was better performing that the undoped PMP film.
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Affiliation(s)
- Domenico Sagnelli
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
- Correspondence: (D.S.); (G.N.); (L.P.)
| | - Marcella Calabrese
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy;
| | - Olga Kaczmarczyk
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland;
| | - Massimo Rippa
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
| | - Ambra Vestri
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
| | - Valentina Marchesano
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
| | - Kristoffer Kortsen
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | - Valentina Cuzzucoli Crucitti
- Department of Chemical and Environmental Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK;
| | - Fulvia Villani
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Portici Research Centre, Portici, 80055 Naples, Italy; (F.V.); (F.L.); (C.B.)
| | - Fausta Loffredo
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Portici Research Centre, Portici, 80055 Naples, Italy; (F.V.); (F.L.); (C.B.)
| | - Carmela Borriello
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Portici Research Centre, Portici, 80055 Naples, Italy; (F.V.); (F.L.); (C.B.)
| | - Giuseppe Nenna
- ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Portici Research Centre, Portici, 80055 Naples, Italy; (F.V.); (F.L.); (C.B.)
- Correspondence: (D.S.); (G.N.); (L.P.)
| | - Mariacristina Cocca
- Institute for Polymers, Composites and Biomaterials of CNR, 80072 Pozzuoli, Italy;
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy;
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland;
| | - Francesco Simoni
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
| | - Lucia Petti
- Institute of Applied Sciences and Intelligent Systems of CNR, 80072 Pozzuoli, Italy; (M.C.); (O.K.); (M.R.); (A.V.); (V.M.); (F.S.)
- Correspondence: (D.S.); (G.N.); (L.P.)
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Volgare M, De Falco F, Avolio R, Castaldo R, Errico ME, Gentile G, Ambrogi V, Cocca M. Washing load influences the microplastic release from polyester fabrics by affecting wettability and mechanical stress. Sci Rep 2021; 11:19479. [PMID: 34593897 PMCID: PMC8484352 DOI: 10.1038/s41598-021-98836-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/17/2021] [Indexed: 11/28/2022] Open
Abstract
Microplastics released from textiles during the washing process represent the most prevalent type of microparticles found in different environmental compartments and ecosystems around the world. Release of microfibres during the washing process of synthetic textiles is due to the mechanical and chemical stresses that clothes undergo in washing machines. Several washing process parameters, conditions, formulations of laundering additives have been correlated to microfibre release and some of them have been identified to affect microfibre release during washing process, while no correlation has been evaluated between microfibre release and washing load. In the present study, microfibre release was evaluated as function of the washing load in a real washing process, indicating a progressive decrease of microfibre release with increasing washing load. The quantity of released microfibres increased by around 5 times by decreasing the washing load due to a synergistic effect between water-volume to fabric ratio and mechanical stress during washing. Moreover, the higher mechanical stress to which the fabric is subjected in the case of a low washing load, hinders the discrimination of the effect on the release of other washing parameters like the type of detergent and laundry additives used.
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Affiliation(s)
- Michela Volgare
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy.,Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.Le Tecchio, 80, 80125, Naples, Italy
| | - Francesca De Falco
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy. .,School of Geography, Earth and Environmental Sciences, University of Plymouth, Plymouth, PL4 8AA, Devon, UK.
| | - Roberto Avolio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy
| | - Rachele Castaldo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy
| | - Maria Emanuela Errico
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy
| | - Gennaro Gentile
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.Le Tecchio, 80, 80125, Naples, Italy
| | - Mariacristina Cocca
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078, Pozzuoli, NA, Italy.
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Craig E, Calarco A, Conte R, Ambrogi V, d'Ayala GG, Alabi P, Sello JK, Cerruti P, Kima PE. Thermoresponsive Copolymer Nanovectors Improve the Bioavailability of Retrograde Inhibitors in the Treatment of Leishmania Infections. Front Cell Infect Microbiol 2021; 11:702676. [PMID: 34490142 PMCID: PMC8417477 DOI: 10.3389/fcimb.2021.702676] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/09/2021] [Indexed: 11/13/2022] Open
Abstract
Clinical manifestations of leishmaniasis range from self-healing, cutaneous lesions to fatal infections of the viscera. With no preventative Leishmania vaccine available, the frontline option against leishmaniasis is chemotherapy. Unfortunately, currently available anti-Leishmania drugs face several obstacles, including toxicity that limits dosing and emergent drug resistant strains in endemic regions. It is, therefore, imperative that more effective drug formulations with decreased toxicity profiles are developed. Previous studies had shown that 2-(((5-Methyl-2-thienyl)methylene)amino)-N-phenylbenzamide (also called Retro-2) has efficacy against Leishmania infections. Structure–activity relationship (SAR) analogs of Retro-2, using the dihydroquinazolinone (DHQZ) base structure, were subsequently described that are more efficacious than Retro-2. However, considering the hydrophobic nature of these compounds that limits their solubility and uptake, the current studies were initiated to determine whether the solubility of Retro-2 and its SAR analogs could be enhanced through encapsulation in amphiphilic polymer nanoparticles. We evaluated encapsulation of these compounds in the amphiphilic, thermoresponsive oligo(ethylene glycol) methacrylate-co-pentafluorostyrene (PFG30) copolymer that forms nanoparticle aggregates upon heating past temperatures of 30°C. The hydrophobic tracer, coumarin 6, was used to evaluate uptake of a hydrophobic molecule into PFG30 aggregates. Mass spectrometry analysis showed considerably greater delivery of encapsulated DHQZ analogs into infected cells and more rapid shrinkage of L. amazonensis communal vacuoles. Moreover, encapsulation in PFG30 augmented the efficacy of Retro-2 and its SAR analogs to clear both L. amazonensis and L. donovani infections. These studies demonstrate that encapsulation of compounds in PFG30 is a viable approach to dramatically increase bioavailability and efficacy of anti-Leishmania compounds.
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Affiliation(s)
- Evan Craig
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, United States
| | - Anna Calarco
- Research Institute on Terrestrial Ecosystems (IRET-CNR), Napoli, Italy
| | - Raffaele Conte
- Research Institute on Terrestrial Ecosystems (IRET-CNR), Napoli, Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMaPI) - University of Naples Federico II, Napoli, Italy
| | | | - Philip Alabi
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, United States
| | - Jason K Sello
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, United States
| | | | - Peter E Kima
- Department of Microbiology and Cell Science, University of Florida, Gainesville, FL, United States
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Bifulco A, Marotta A, Passaro J, Costantini A, Cerruti P, Gentile G, Ambrogi V, Malucelli G, Branda F. Thermal and Fire Behavior of a Bio-Based Epoxy/Silica Hybrid Cured with Methyl Nadic Anhydride. Polymers (Basel) 2020; 12:E1661. [PMID: 32722585 PMCID: PMC7466172 DOI: 10.3390/polym12081661] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [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: 07/07/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/17/2022] Open
Abstract
Thermosetting polymers have been widely used in many industrial applications as adhesives, coatings and laminated materials, among others. Recently, bisphenol A (BPA) has been banned as raw material for polymeric products, due to its harmful impact on human health. On the other hand, the use of aromatic amines as curing agents confers excellent thermal, mechanical and flame retardant properties to the final product, although they are toxic and subject to governmental restrictions. In this context, sugar-derived diepoxy monomers and anhydrides represent a sustainable greener alternative to BPA and aromatic amines. Herein, we report an "in-situ" sol-gel synthesis, using as precursors tetraethylorthosilicate (TEOS) and aminopropyl triethoxysilane (APTS) to obtain bio-based epoxy/silica composites; in a first step, the APTS was left to react with 2,5-bis[(oxyran-2-ylmethoxy)methyl]furan (BOMF) or diglycidyl ether of bisphenol A (DGEBA)monomers, and silica particles were generated in the epoxy in a second step; both systems were cured with methyl nadic anhydride (MNA). Morphological investigation of the composites through transmission electron microscopy (TEM) demonstrated that the hybrid strategy allows a very fine distribution of silica nanoparticles (at nanometric level) to be achieved within a hybrid network structure for both the diepoxy monomers. Concerning the fire behavior, as assessed in vertical flame spread tests, the use of anhydride curing agent prevented melt dripping phenomena and provided high char-forming character to the bio-based epoxy systems and their phenyl analog. In addition, forced combustion tests showed that the use of anhydride hardener instead of aliphatic polyamine results in a remarkable decrease of heat release rate. An overall decrease of the smoke parameters, which is highly desirable in a context of greater fire safety was observed in the case of BOMF/MNA system. The experimental results suggest that the effect of silica nanoparticles on fire behavior appears to be related to their dispersion degree.
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Affiliation(s)
- Aurelio Bifulco
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
| | - Angela Marotta
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
| | - Jessica Passaro
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
| | - Aniello Costantini
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB)-CNR, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (P.C.); (G.G.)
| | - Gennaro Gentile
- Institute for Polymers, Composites and Biomaterials (IPCB)-CNR, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (P.C.); (G.G.)
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
- Institute for Polymers, Composites and Biomaterials (IPCB)-CNR, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (P.C.); (G.G.)
| | - Giulio Malucelli
- Department of Applied Science and Technology, Politecnico di Torino, Viale Teresa Michel 5, 15121 Alessandria, Italy;
| | - Francesco Branda
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (A.B.); (A.M.); (J.P.); (A.C.)
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Guerritore M, Castaldo R, Silvestri B, Avolio R, Cocca M, Errico ME, Avella M, Gentile G, Ambrogi V. Hyper-Crosslinked Polymer Nanocomposites Containing Mesoporous Silica Nanoparticles with Enhanced Adsorption Towards Polar Dyes. Polymers (Basel) 2020; 12:E1388. [PMID: 32575792 PMCID: PMC7362258 DOI: 10.3390/polym12061388] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 05/27/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 01/16/2023] Open
Abstract
The development of new styrene-based hyper-crosslinked nanocomposites (HCLN) containing mesoporous silica nanoparticles (MSN) is reported here as a new strategy to obtain functional high surface area materials with an enhanced hydrophilic character. The HCLN composition, morphology and porous structure were analyzed using a multi-technique approach. The HCLN displayed a high surface area (above 1600 m2/g) and higher microporosity than the corresponding hyper-crosslinked neat resin. The enhanced adsorption properties of the HCLN towards polar organic dyes was demonstrated through the adsorption of a reactive dye, Remazol Brilliant Blue R (RB). In particular, the HCLN containing 5phr MSN showed the highest adsorption capacity of RB.
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Affiliation(s)
- Marco Guerritore
- Department of Chemical, Materials and Production Engineering (DICMaPI)—University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (M.G.); (V.A.)
| | - Rachele Castaldo
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Brigida Silvestri
- Department of Chemical, Materials and Production Engineering (DICMaPI)—University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (M.G.); (V.A.)
| | - Roberto Avolio
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Mariacristina Cocca
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Maria Emanuela Errico
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Maurizio Avella
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Gennaro Gentile
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMaPI)—University of Naples Federico II, P. le Tecchio 80, 80125 Napoli, Italy; (M.G.); (V.A.)
- National Research Council of Italy, Institute for Polymers Composites and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; (R.A.); (M.C.); (M.E.E.); (M.A.); (G.G.)
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Marotta A, Faggio N, Ambrogi V, Cerruti P, Gentile G, Mija A. Curing Behavior and Properties of Sustainable Furan-Based Epoxy/Anhydride Resins. Biomacromolecules 2019; 20:3831-3841. [PMID: 31412201 DOI: 10.1021/acs.biomac.9b00919] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The last two decades have witnessed a significant growth in using bioderived materials, driven by the necessity of replacing fossil-derived precursors, reducing the fossil fuel consumption, and lowering the global environmental impact. This is possible thanks to the availability of abundant resources from biomasses and the development of optimized technologies based on the principles of sustainability and circular economy. Herein, we report on the synthesis and characterization of new carbohydrate-derived epoxy resins. In particular, 2,5-bis[(oxiran-2-ylmethoxy)methyl]furan has been synthesized and cured with methyl nadic anhydride. The effect of different initiators was studied, in order to identify the most efficient curable formulations. A series of resins was then prepared varying the epoxide-anhydride ratios. The results gathered from physicochemical, mechanical, morphological analyses have demonstrated that the produced furan-based thermosets have the potential to be proposed as sustainable alternatives to the traditional, bisphenol A-containing epoxy resins.
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Affiliation(s)
- Angela Marotta
- Department of Chemical, Materials and Production Engineering (DICMaPI) , University of Naples Federico II , P. le Tecchio 80 , 80125 Napoli , Italy.,Université Côte d'Azur, Université Nice-Sophia Antipolis , Institut de Chimie de Nice, UMR CNRS 7272, 06108 Nice Cedex 02 , France
| | - Noemi Faggio
- Department of Chemical, Materials and Production Engineering (DICMaPI) , University of Naples Federico II , P. le Tecchio 80 , 80125 Napoli , Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMaPI) , University of Naples Federico II , P. le Tecchio 80 , 80125 Napoli , Italy
| | - Pierfrancesco Cerruti
- Institute for Polymers , Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34 , 80078 Pozzuoli (NA) , Italy
| | - Gennaro Gentile
- Institute for Polymers , Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34 , 80078 Pozzuoli (NA) , Italy
| | - Alice Mija
- Université Côte d'Azur, Université Nice-Sophia Antipolis , Institut de Chimie de Nice, UMR CNRS 7272, 06108 Nice Cedex 02 , France
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Stenger Moura F, Perioli L, Pagano C, Vivani R, Ambrogi V, Bresolin T, Ricci M, Schoubben A. Chitosan composite microparticles: A promising gastroadhesive system for taxifolin. Carbohydr Polym 2019; 218:343-354. [DOI: 10.1016/j.carbpol.2019.04.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 02/06/2023]
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De Falco F, Guarino V, Gentile G, Cocca M, Ambrogi V, Ambrosio L, Avella M. Design of functional textile coatings via non-conventional electrofluidodynamic processes. J Colloid Interface Sci 2019; 541:367-375. [PMID: 30708252 DOI: 10.1016/j.jcis.2019.01.086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 02/01/2023]
Abstract
HYPOTHESIS In the last years, several cost-effective technologies have been investigated to functionalize textile substrates for large scale applications and industrial production. However, several limitations of currently used technologies still restrict the capability to form functional coatings finely controlling the textile surface properties and topographic structure of the coatings at sub-micrometric scale. EXPERIMENTS Herein, we introduced a new non-conventional electrofluidodynamic technology - based on the use of electrostatic forces to polymer/composite solutions - for the application onto textile fabrics of functional coatings. With respect to particle/fibrous coatings usually applied through conventional electrospraying/electrospinning processes, the proposed approach is able to realize homogeneous and continuous coatings by a one-step process, imparting tailored functionalities to the textiles surfaces through the use of customized experimental setups. FINDINGS We proved that this process can be successfully used to realize functional coatings based on a bioderived polymer, namely polylactic acid (PLA), on commercial woven polyamide (PA) fabrics. In addition, due to the usage of graphene derivatives or photochromic dyes in combination with PLA, the applied coatings are able to confer peculiar functionalities (i.e., electrical conductivity, photochromic properties, etc.) to polyamide fabrics, as proved by SEM, conductivity and UV irradiation measurements, for innovative applications in smart textiles, e-health and wearable electronics.
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Affiliation(s)
- Francesca De Falco
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; University of Naples Federico II, Department of Materials and Production Engineering, P.le Tecchio 80, 80125 Naples, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, V.le Kennedy 54, 80125 Naples, Italy.
| | - Gennaro Gentile
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Mariacristina Cocca
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - Veronica Ambrogi
- University of Naples Federico II, Department of Materials and Production Engineering, P.le Tecchio 80, 80125 Naples, Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad.20, V.le Kennedy 54, 80125 Naples, Italy
| | - Maurizio Avella
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
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Marturano V, Bizzarro V, Ambrogi V, Cutignano A, Tommonaro G, Abbamondi GR, Giamberini M, Tylkowski B, Carfagna C, Cerruti P. Light-Responsive Nanocapsule-Coated Polymer Films for Antimicrobial Active Packaging. Polymers (Basel) 2019; 11:E68. [PMID: 30960052 PMCID: PMC6402017 DOI: 10.3390/polym11010068] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 12/21/2018] [Accepted: 12/28/2018] [Indexed: 01/09/2023] Open
Abstract
The development of antimicrobial active packaging constitutes a powerful tool to reduce waste and increase quality standards of perishable goods. Among numerous available antimicrobial agents, essential oils stand out for their renowned efficiency, and their use is beneficial due to their sustainability compared to other oil-based antimicrobials. In this work, we report on the use of photo-responsive nanocapsules containing thyme essential oil as functional coatings for polyethylene and polylactic acid films to obtain antimicrobial active packaging. Polymer surface activation treatment enhanced compatibility with nanocapsules solution. The films were analyzed to assess the structural and functional properties of the coating, evaluate morphological changes due to their photo-responsive behavior, and monitor the light-induced release of volatile thyme oil. It was found that 24 h after a 15-min UV exposure of the coated films, the concentration of thyme oil in the headspace was eight times higher with respect to un-irradiated films, thus confirming the efficiency of the light-triggered release system. Therefore, the manufactured films are proposed as on-demand release devices for application in non-contact antimicrobial active packaging.
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Affiliation(s)
- Valentina Marturano
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy.
| | - Valentina Bizzarro
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy.
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMAPI) University of Naples "Federico II", P. le Tecchio, 80, 80125 Napoli, Italy.
| | - Adele Cutignano
- Institute of Biomolecular Chemistry (ICB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy.
| | - Giuseppina Tommonaro
- Institute of Biomolecular Chemistry (ICB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy.
| | | | - Marta Giamberini
- Department of Chemical Engineering (DEQ), Universitat Rovira i Virgili, Av. Països Catalans, 26, 43007 Tarragona, Spain.
| | - Bartosz Tylkowski
- Chemistry Technology Centre of Catalonia (CTQC), C/Marcel·lí Domingo, 43007 Tarragona, Spain.
| | - Cosimo Carfagna
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Campi Flegrei, 34, 80078 Pozzuoli (NA), Italy.
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR) Via Previati 1/C, 23900 Lecco, Italy.
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De Falco F, Gentile G, Avolio R, Errico ME, Di Pace E, Ambrogi V, Avella M, Cocca M. Pectin based finishing to mitigate the impact of microplastics released by polyamide fabrics. Carbohydr Polym 2018; 198:175-180. [DOI: 10.1016/j.carbpol.2018.06.062] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/07/2018] [Accepted: 06/14/2018] [Indexed: 10/14/2022]
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Abstract
Aims and background The neodymium: yttrium-aluminium-garnet (Nd:YAG) laser has been successfully employed in parenchyma-sparing resection of pulmonary nodular lesions. We report our experience with limited resection using a noncontact Nd: YAG laser applied through a thoracotomic approach. Methods During the period March 1987-October 1993, we performed parenchyma-sparing resections of 66 pulmonary nodular lesions with a noncontact Nd:YAG laser in 47 patients. Nodules were approached through postero-lateral thoracotomy (n= 40), median sternotomy (n= 5) or staged bilateral thoracotomy (n= 2). Fifty-two lesions were located in a peripheral position and the others (n= 14) at various depths within the parenchyma. Results Fifteen lesions were benign: hamartoma (n= 5), chronic pneumonic infiltrate (n= 3), tuberculoma (n= 3), asbestosis (n= 2), Wegener's granuloma (n= 1). Twelve lesions were attributable to primary lung cancer and 33 were metastatic lesions. Another 6 lesions turned out to be necrotic metastases following chemotherapy. There were no perioperative deaths. Pulmonary re-expansion was shortly obtained: mean drainage time was 4.31 ± 3.9 days. Only one patient presented a prolonged drainage time (11 days); in this case, the air leak was successfully treated by tissue glue sealant trans-drainage infiltration. Follow-up ranged from 2 to 96 months. No case of relapse on the resection site has been observed. Conclusions The results suggest that Nd:YAG laser resection is safe and worthwhile in patients with multiple lesions and borderline pulmonary function.
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Affiliation(s)
- T C Mineo
- Cattedra di Chirurgia Toracica, Tor Vergata, Università di Roma, Italy
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Bogdanowicz KA, Pirone D, Prats-Reig J, Ambrogi V, Reina JA, Giamberini M. In Situ Raman Spectroscopy as a Tool for Structural Insight into Cation Non-Ionomeric Polymer Interactions during Ion Transport. Polymers (Basel) 2018; 10:E416. [PMID: 30966451 PMCID: PMC6415221 DOI: 10.3390/polym10040416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 03/30/2018] [Accepted: 04/06/2018] [Indexed: 11/17/2022] Open
Abstract
Low-modified liquid-crystalline polyether (CP36), as a model compound, was synthesised with the purpose of preparing a membrane with columnar ionic channels. A free-standing cation permselective biomimetic membrane was successfully prepared and found to have channels made of polymeric columns homeotropically oriented, which was confirmed in X-ray diffraction (XRD) analysis. A first insight into a real-time interaction between two selected cations: H⁺ and Na⁺, and polyether during transport through the polymeric membrane was demonstrated using joined chronoamperometry and Raman spectroscopy techniques. Raman studies unveiled the possibility for smaller protons to bypass the usual ionic pathway via polyetheric chain and use outer part of ionic channel for conduction thanks to ester bonds.
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Affiliation(s)
- Krzysztof Artur Bogdanowicz
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain.
- Military Institute of Engineer Technology, 136 Obornicka Street, 50-961 Wroclaw, Poland.
| | - Domenico Pirone
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain.
- Dipartimento di Ingegneria dei Materiali e della Produzione, Università di Napoli 'Federico II', Piazzale Tecchio 80, 80125 Napoli, Italy.
| | - Judit Prats-Reig
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain.
| | - Veronica Ambrogi
- Dipartimento di Ingegneria dei Materiali e della Produzione, Università di Napoli 'Federico II', Piazzale Tecchio 80, 80125 Napoli, Italy.
| | - José Antonio Reina
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, Carrer Marcel·lí Domingo s/n, Campus Sescelades, 43007 Tarragona, Spain.
| | - Marta Giamberini
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans 26, Campus Sescelades, 43007 Tarragona, Spain.
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Lashgari S, Mahdavian AR, Arabi H, Ambrogi V, Marturano V. Preparation of acrylic PCM microcapsules with dual responsivity to temperature and magnetic field changes. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Roselli M, Mineo T, Martini F, Mariotti S, Ambrogi V, Spila A, D'Alessandro R, Basili S, Guadagni F, Ferroni P. Soluble Selectin Levels in Patients with Lung Cancer. Int J Biol Markers 2018. [DOI: 10.1177/172460080201700107] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Increased expression of selectins has been found on endothelial cells of venules and capillaries in the tumor stroma of non-small cell lung cancer, suggesting their functional role in the process of chemotaxis for tumor cells. The present study was aimed at analyzing the role of both soluble (s)P-selectin and sE-selectin levels in association with clinico-pathological variables in 116 patients with lung cancer, 38 patients with benign diseases and 59 healthy donors. The results obtained showed that sP-selectin and sE-selectin levels were higher in patients with lung cancer compared to normal donors (p<0.02 and p<0.005, respectively). No differences were observed among patients with various benign diseases for both selectins. Increased levels of sP-selectin and sE-selectin were significantly associated with squamous lung cancer at late stages (p<0.05), but not adenocarcinoma. Both sP- and sE-selectin were independently related to the stage of squamous lung cancer by stepwise regression analysis (p<0.02 and p<0.03, respectively), while only sE-selectin was independently related to the presence of distant metastasis in the same histotype (p<0.02). These results suggest that measurement of plasma soluble selectins might represent a useful laboratory parameter in the management of patients with squamous lung cancer.
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Affiliation(s)
- M. Roselli
- Clinical Oncology Section, Department of Surgery, Tor Vergata University, Rome
| | - T.C. Mineo
- Thoracic Surgery, Tor Vergata University, Rome
| | - F. Martini
- Department of Experimental Medicine and Pathology, La Sapienza University, Rome
| | - S. Mariotti
- Clinical Oncology Section, Department of Surgery, Tor Vergata University, Rome
| | - V. Ambrogi
- Thoracic Surgery, Tor Vergata University, Rome
| | - A. Spila
- Laboratory of Clinical Pathology, Regina Elena Cancer Institute, Rome
| | - R. D'Alessandro
- Laboratory of Clinical Pathology, Regina Elena Cancer Institute, Rome
| | - S. Basili
- Department of Medical Therapy, La Sapienza University, Rome - Italy
| | - F. Guadagni
- Laboratory of Clinical Pathology, Regina Elena Cancer Institute, Rome
| | - P. Ferroni
- Department of Experimental Medicine and Pathology, La Sapienza University, Rome
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22
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Marotta A, Ambrogi V, Cerruti P, Mija A. Green approaches in the synthesis of furan-based diepoxy monomers. RSC Adv 2018; 8:16330-16335. [PMID: 35542187 PMCID: PMC9080280 DOI: 10.1039/c8ra02739k] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 04/26/2018] [Indexed: 01/16/2023] Open
Abstract
Two eco-respectful, one-step synthetic routes for the preparation of a bio-based epoxy monomer derived from furan precursors are developed. The diglycidyl ester products are throughly characterized in terms of structure and thermal properties. Gathered results indicate that the two selected approaches allow the preparation of pure, furanic diglycidyl ester, which represents a viable bio-based alternative to its petrochemical aromatic counterpart. Two eco-respectful, one-step synthetic routes for the preparation of a bio-based epoxy monomer derived from furan precursors are developed.![]()
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Affiliation(s)
- Angela Marotta
- Department of Chemical
- Materials and Production Engineering (DICMaPI)
- University of Naples “Federico II”
- 80125 Napoli
- Italy
| | - Veronica Ambrogi
- Department of Chemical
- Materials and Production Engineering (DICMaPI)
- University of Naples “Federico II”
- 80125 Napoli
- Italy
| | | | - Alice Mija
- Université Côte d’Azur
- Université Nice-Sophia Antipolis
- Institut de Chimie de Nice, UMR CNRS 7272
- 06108 Nice Cedex 02
- France
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23
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Nogalska A, Ammendola M, Tylkowski B, Ambrogi V, Garcia-Valls R. Ambient CO 2 adsorption via membrane contactors – Value of assimilation from air as nature stomata. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Belmonte A, Lama GC, Gentile G, Cerruti P, Ambrogi V, Fernández-Francos X, De la Flor S. Thermally-triggered free-standing shape-memory actuators. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Salvatore M, Carotenuto G, De Nicola S, Camerlingo C, Ambrogi V, Carfagna C. Synthesis and Characterization of Highly Intercalated Graphite Bisulfate. Nanoscale Res Lett 2017; 12:167. [PMID: 28274088 PMCID: PMC5339088 DOI: 10.1186/s11671-017-1930-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/18/2017] [Indexed: 06/02/2023]
Abstract
Different chemical formulations for the synthesis of highly intercalated graphite bisulfate have been tested. In particular, nitric acid, potassium nitrate, potassium dichromate, potassium permanganate, sodium periodate, sodium chlorate, and hydrogen peroxide have been used in this synthesis scheme as the auxiliary reagent (oxidizing agent). In order to evaluate the presence of delamination, and pre-expansion phenomena, and the achieved intercalation degree in the prepared samples, the obtained graphite intercalation compounds have been characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray powder diffraction (XRD), infrared spectroscopy (FT-IR), micro-Raman spectroscopy (μ-RS), and thermal analysis (TGA). Delamination and pre-expansion phenomena were observed only for nitric acid, sodium chlorate, and hydrogen peroxide, while the presence of strong oxidizers (KMnO4, K2Cr2O7) led to stable graphite intercalation compounds. The largest content of intercalated bisulfate is achieved in the intercalated compounds obtained from NaIO4 and NaClO3.
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Affiliation(s)
- Marcella Salvatore
- CNR-IPCB, Institute for Polymers, Composites and Biomaterials, P.le E. Fermi, 1, Portici, 80055, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio, 80, Naples, 80125, Italy
| | - Gianfranco Carotenuto
- CNR-IPCB, Institute for Polymers, Composites and Biomaterials, P.le E. Fermi, 1, Portici, 80055, Italy
| | - Sergio De Nicola
- CNR-SPIN, Institute for Superconductors, Innovative Materials and Devices, S.S. Napoli, Complesso Universitario di M.S. Angelo, Via Cinthia, Naples, 80126, Italy.
| | - Carlo Camerlingo
- CNR-SPIN, Institute for Superconductors, Innovative Materials and Devices, S.S. Napoli, Complesso Universitario di M.S. Angelo, Via Cinthia, Naples, 80126, Italy
| | - Veronica Ambrogi
- CNR-IPCB, Institute for Polymers, Composites and Biomaterials, P.le E. Fermi, 1, Portici, 80055, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio, 80, Naples, 80125, Italy
| | - Cosimo Carfagna
- CNR-IPCB, Institute for Polymers, Composites and Biomaterials, P.le E. Fermi, 1, Portici, 80055, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, P.le Tecchio, 80, Naples, 80125, Italy
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26
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Castaldo R, Gentile G, Avella M, Carfagna C, Ambrogi V. Microporous Hyper-Crosslinked Polystyrenes and Nanocomposites with High Adsorption Properties: A Review. Polymers (Basel) 2017; 9:polym9120651. [PMID: 30965952 PMCID: PMC6418941 DOI: 10.3390/polym9120651] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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: 10/30/2017] [Revised: 11/21/2017] [Accepted: 11/24/2017] [Indexed: 12/28/2022] Open
Abstract
Hyper-crosslinked (HCL) polystyrenes show outstanding properties, such as high specific surface area and adsorption capability. Several researches have been recently focused on tailoring their performance for specific applications, such as gas adsorption and separation, energy storage, air and water purification processes, and catalysis. In this review, main strategies for the realization of HCL polystyrene-based materials with advanced properties are reported, including a summary of the synthetic routes that are adopted for their realization and the chemical modification approaches that are used to impart them specific functionalities. Moreover, the most up to date results on the synthesis of HCL polystyrene-based nanocomposites that are realized by embedding these high surface area polymers with metal, metal oxide, and carbon-based nanofillers are discussed in detail, underlining the high potential applicability of these systems in different fields.
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Affiliation(s)
- Rachele Castaldo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Gennaro Gentile
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Maurizio Avella
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Cosimo Carfagna
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples, Piazzale Tecchio 80, 80125 Napoli, Italy.
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Abstract
AbstractAzobenzene is by far the most studied photochromic molecule and its applications range from optical storage to bio-engineering. To exploit the great potential of azobenzene, one must achieve deep understanding of its photochemistry as single molecule in solution AS WELL AS in-chain moiety and pendent group in macromolecular structures. With the advent of computer-aided simulation scientists have been able to match experimental data with computational models. In this chapter, a review on the modeling of azobenzene-containing molecules in different conditions and environments IS provided with a special focus on advanced applications of photo-controllable materials, such as molecular machines and photoactivation of bio-molecules.
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Guillot-Tantay C, Chartier-Kastler E, Mozer P, Bitker MO, Richard F, Ambrogi V, Denys P, Léon P, Phé V. [Male neurogenic stress urinary incontinence treated by artificial urinary sphincter AMS 800™ (Boston Scientific, Boston, USA): Very long-term results (>25 years)]. Prog Urol 2017; 28:39-47. [PMID: 29102375 DOI: 10.1016/j.purol.2017.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 03/23/2017] [Revised: 08/03/2017] [Accepted: 09/26/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The aim of the study was to report the very long-term functional outcomes of artificial urinary sphincter (AUS) in male neurological patients. MATERIAL AND METHODS Male neurological patients diagnosed with stress urinary incontinence due to sphincter deficiency and undergoing AUS (AMS 800®) implantation between 1985 and 1992 were enrolled. Continence, defined by no pad/condom usage, explantation and revision rates were reported. RESULTS Fourteen patients with a median age of 27.3 years (IQR: 27.3-40.8) were included: four had a spinal cord injury and ten a spina bifida. Prior continence surgery was reported by 6 patients (42.9 %). Artificial urinary sphincter was implanted in a peribulbar (n=4) or periprostatic position (n=10). Median follow-up was 18.3 years (IQR: 10.1-20.3). At last follow-up, all patients were alive. Three native devices were still in place, eight were revised (four of them were secondarily explanted) and three were explanted due to erosion or infection. The 5-, 10-, 15-, 20-year explantation-free survival rates were respectively 85.7, 62.3, 52.0, 39.0 %. The 5-, 10-, 15-, 20-year revision-free survival rates were respectively 78.6, 42.9, 28.6, 7.1 %. At last follow-up, 50 % patients were continent. CONCLUSION In the very long run, AUS provided a 50 % continence rate in male neurological patients but the revision rates were important. LEVEL OF EVIDENCE 4.
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Affiliation(s)
- C Guillot-Tantay
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France.
| | - E Chartier-Kastler
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - P Mozer
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - M-O Bitker
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - F Richard
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - V Ambrogi
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - P Denys
- Service de médecine physique et réadaptation, hôpital Raymond-Poincaré, Assistance publique-Hôpitaux de Paris, UFR des sciences de la santé Simone Veil, université Versailles-Saint-Quentin-en-Yvelines, 104, boulevard Raymond-Poincaré, 92380 Garches, France
| | - P Léon
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
| | - V Phé
- Service d'urologie et de transplantation rénale, hôpital universitaire La Pitié Salpêtrière, Assistance publique-Hôpitaux de Paris, faculté de médecine Pierre et Marie Curie, Sorbonne universités, université Paris 6, 47-83, boulevard de L'hôpital, 75013 Paris, France
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Tylkowski B, Trojanowska A, Marturano V, Nowak M, Marciniak L, Giamberini M, Ambrogi V, Cerruti P. Power of light – Functional complexes based on azobenzene molecules. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.05.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Manach Q, Bouquot M, Rouprêt M, Ambrogi V, Richard F, Bitker MO, Chartier-Kastler E, Phé V. [Placement of tension-free vaginal tape in women with stress urinary incontinence: Long-term functional outcomes in a prospective series]. Prog Urol 2017; 27:640-646. [PMID: 28651995 DOI: 10.1016/j.purol.2017.05.009] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 04/01/2017] [Accepted: 05/25/2017] [Indexed: 10/19/2022]
Abstract
PURPOSE To evaluate the long-term functional outcomes after retropubic tension-free vaginal tape (TVT) placement to treat female stress urinary incontinence (SUI). METHODS From September 1998 to September 2000, we prospectively enrolled all consecutive women in our center suffering SUI caused by urethral hypermobility. All women had a retropubic TVT inserted by the same surgeon. Patients were evaluated at 1, 3, 6 and 12 months postoperatively, and annually thereafter. Postoperative assessment included a measurement of post-voiding residual volume, urinalysis, a 1-hour pad test, a urinary symptom questionnaire, and an assessment of quality-of-life. Objective continence (defined as no urine leakage at clinical examination) and subjective continence (defined as no urine leakage, whatever the mechanism, reported by the patient) were reported. RESULTS Overall, 58 consecutive women (median age 59; IQR 49-67; min 21-max 78) were evaluated. Median follow-up was 10.2years (IQR 1.4-16.0; min 1-max 13.2). At the last follow-up, objective and subjective continence rates were 93% and 78%, respectively and remained stable in the long run. Pad tests, urinary symptom questionnaire scores and quality-of-life were significantly improved. Self-intermittent catheterisation was required by three women. A section of one TVT and removal of another tape was undertaken in two women with chronic pelvic pain. One patient had a chronic urinary infection. Rate of de novo urgency was 10%. CONCLUSIONS TVT implantation offered good and stable functional long-term outcomes. This procedure enhanced quality-of-life and had low morbidity. LEVEL OF EVIDENCE 3.
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Affiliation(s)
- Q Manach
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - M Bouquot
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - M Rouprêt
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - V Ambrogi
- Service de santé publique, informatique médicale et biostatistique, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'hôpital, 75651 Paris cedex 13, France.
| | - F Richard
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - M O Bitker
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - E Chartier-Kastler
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
| | - V Phé
- Service d'urologie, hôpital universitaire Pitié-Salpêtrière, faculté de médecine Pierre-et-Marie-Curie, Sorbonne universités, université Paris 6, Assistance publique-Hôpitaux de Paris, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.
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Castaldo R, Avolio R, Cocca M, Gentile G, Errico ME, Avella M, Carfagna C, Ambrogi V. A Versatile Synthetic Approach toward Hyper-Cross-Linked Styrene-Based Polymers and Nanocomposites. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00812] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Rachele Castaldo
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- Department
of Chemical, Materials and Production Engineering, University of Naples, Piazzale Tecchio 80, 80125 Napoli, Italy
| | - Roberto Avolio
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Mariacristina Cocca
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Gennaro Gentile
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Maria Emanuela Errico
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Maurizio Avella
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Cosimo Carfagna
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
| | - Veronica Ambrogi
- Institute
for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei 34, 80078 Pozzuoli, Italy
- Department
of Chemical, Materials and Production Engineering, University of Naples, Piazzale Tecchio 80, 80125 Napoli, Italy
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33
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Belmonte A, Russo C, Ambrogi V, Fernández-Francos X, De la Flor S. Epoxy-Based Shape-Memory Actuators Obtained via Dual-Curing of Off-Stoichiometric "Thiol⁻Epoxy" Mixtures. Polymers (Basel) 2017; 9:polym9030113. [PMID: 30970791 PMCID: PMC6431884 DOI: 10.3390/polym9030113] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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: 02/14/2017] [Revised: 03/10/2017] [Accepted: 03/16/2017] [Indexed: 11/25/2022] Open
Abstract
In this work, epoxy-based shape-memory actuators have been developed by taking advantage of the sequential dual-curing of off-stoichiometric “thiol–epoxy” systems. Bent-shaped designs for flexural actuation were obtained thanks to the easy processing of these materials in the intermediate stage (after the first curing process), and successfully fixed through the second curing process. The samples were programmed into a flat temporary-shape and the recovery-process was analyzed in unconstrained, partially-constrained and fully-constrained conditions using a dynamic mechanical analyzer (DMA). Different “thiol–epoxy” systems and off-stoichiometric ratios were used to analyze the effect of the network structure on the actuation performance. The results evidenced the possibility to take advantage of the flexural recovery as a potential actuator, the operation of which can be modulated by changing the network structure and properties of the material. Under unconstrained-recovery conditions, faster and narrower recovery-processes (an average speed up to 80%/min) are attained by using materials with homogeneous network structure, while in partially- or fully-constrained conditions, a higher crosslinking density and the presence of crosslinks of higher functionality lead to a higher amount of energy released during the recovery-process, thus, increasing the work or the force released. Finally, an easy approach for the prediction of the work released by the shape-memory actuator has been proposed.
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Affiliation(s)
- Alberto Belmonte
- Department of Mechanical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain.
| | - Claudio Russo
- Department of Mechanical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain.
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Piazzale Tecchio, 80, 80125 Napoli, Italy.
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Piazzale Tecchio, 80, 80125 Napoli, Italy.
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy.
| | - Xavier Fernández-Francos
- Thermodynamics Laboratory, ETSEIB, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
| | - Silvia De la Flor
- Department of Mechanical Engineering, Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain.
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Nasti G, Sanchez S, Gunkel I, Balog S, Roose B, Wilts BD, Teuscher J, Gentile G, Cerruti P, Ambrogi V, Carfagna C, Steiner U, Abate A. Patterning of perovskite-polymer films by wrinkling instabilities. Soft Matter 2017; 13:1654-1659. [PMID: 28138668 DOI: 10.1039/c6sm02629j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Organic-inorganic perovskites are semiconductors used for applications in optoelectronics and photovoltaics. Micron and submicron perovskite patterns have been explored in semitransparent photovoltaic and lasing applications. In this work, we show that a polymeric medium can be used to create a patterned perovskite, by using a novel and inexpensive approach.
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Affiliation(s)
- G Nasti
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Piazzale Tecchio 80, 80125 Napoli, Italy and Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy and Institute of Applied Sciences and Intelligent System, Via Campi Flegrei 34, Pozzuoli (NA), Italy
| | - S Sanchez
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - I Gunkel
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - S Balog
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - B Roose
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - B D Wilts
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - J Teuscher
- Group for Photochemical Dynamics, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, Station 6, CH-1015 Lausanne, Switzerland
| | - G Gentile
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - P Cerruti
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - V Ambrogi
- Department of Chemical, Materials and Production Engineering, University of Naples "Federico II", Piazzale Tecchio 80, 80125 Napoli, Italy
| | - C Carfagna
- Institute for Polymers, Composites and Biomaterials (IPCB-CNR), via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy
| | - U Steiner
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
| | - A Abate
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland.
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Castaldo R, Avolio R, Cocca M, Gentile G, Errico ME, Avella M, Carfagna C, Ambrogi V. Synthesis and adsorption study of hyper-crosslinked styrene-based nanocomposites containing multi-walled carbon nanotubes. RSC Adv 2017. [DOI: 10.1039/c6ra25481k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
New nanocomposite microporous materials obtained by adding functionalized multi-walled carbon nanotubes to styrene/vinylbenzyl chloride/divinylbenzene hyper-crosslinked resins were prepared and characterized.
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Affiliation(s)
- R. Castaldo
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
- Department of Chemical
| | - R. Avolio
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - M. Cocca
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - G. Gentile
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - M. E. Errico
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - M. Avella
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - C. Carfagna
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
| | - V. Ambrogi
- Institute for Polymers, Composites and Biomaterials
- National Research Council of Italy
- 80078 Pozzuoli
- Italy
- Department of Chemical
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Shiravand F, Ascione L, Persico P, Carfagna C, Brocks T, Cioffi MOH, Puglisi C, Samperi F, Ambrogi V. A novel hybrid linear-hyperbranched poly(butylene adipate) copolymer as an epoxy resin modifier with toughening effect. POLYM INT 2016. [DOI: 10.1002/pi.5056] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fatemeh Shiravand
- Department of Chemical, Materials and Production Engineering (DICMAPI); University of Naples ‘Federico II’; Piazzale V. Tecchio 80 80125 Naples Italy
| | - Laura Ascione
- Department of Chemical, Materials and Production Engineering (DICMAPI); University of Naples ‘Federico II’; Piazzale V. Tecchio 80 80125 Naples Italy
| | - Paola Persico
- Institute for Macromolecular Studies (ISMAC) - CNR; Via E. Bassini 15 20133 Milan Italy
| | - Cosimo Carfagna
- Institute for Polymers, Composites and Biomaterials (IPCB) - CNR; Via Campi Flegrei 34 80078 Pozzuoli, Naples Italy
| | - Thatiane Brocks
- UNESP - Universidade Estadual Paulista; Fatigue and Aeronautical Materials Research Group, 333 Avenida Dr Ariberto Pereira da Cunha 12516-410 Guaratinguetá Brazil
| | - Maria Odila Hilário Cioffi
- UNESP - Universidade Estadual Paulista; Fatigue and Aeronautical Materials Research Group, 333 Avenida Dr Ariberto Pereira da Cunha 12516-410 Guaratinguetá Brazil
| | - Concetto Puglisi
- Institute for Polymers, Composites and Biomaterials (IPCB) UOS Catania - CNR; Via Paolo Gaifami 18 95126 Catania Italy
| | - Filippo Samperi
- Institute for Polymers, Composites and Biomaterials (IPCB) UOS Catania - CNR; Via Paolo Gaifami 18 95126 Catania Italy
| | - Veronica Ambrogi
- Department of Chemical, Materials and Production Engineering (DICMAPI); University of Naples ‘Federico II’; Piazzale V. Tecchio 80 80125 Naples Italy
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Ambrogi V, Tezenas du Montcel S, Collin E, Coutaux A, Bourgeois P, Bourdillon F. Care-related pain in hospitalized patients: severity and patient perception of management. Eur J Pain 2015; 19:313-21. [PMID: 25055764 DOI: 10.1002/ejp.549] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Hospitalized patients commonly undergo painful procedures, but little is known about care-related pain (CRP) in the overall population of inpatients. We conducted a cross-sectional 1-day survey to assess the prevalence and characteristics of CRP and its management in all units of a university hospital in Paris and determined the factors linked to severe CRP. METHODS All patients who were able to communicate and were hospitalized for at least 24 h but not in a day-care or neonatal unit were included. RESULTS From 938 patients who completed the questionnaire, 554 patients reported pain within the previous 24 h, for a 59% prevalence of pain, and 540 (58%) had experienced CRP in the previous 15 days (51% males; mean [SD] age 54 [18] years). Of 907 procedures, 330 (37%) resulted in severe pain. The most-often reported painful procedures were vascular punctures and patient mobilization. Severe CRP was associated with long hospitalization; non-vascular invasive punctures, catheterization, mobilization or radiological examination; or pain during the previous 24 h due to surgery or treatment. Only half of the patients declared that they had received information regarding the painful procedure. Treatment for pain was proposed and delivered in less than one quarter of cases. CONCLUSIONS Our results of a survey of pain management in hospitalized patients relate to a wide variety of medical conditions and procedures. Health-care workers should be more systematic in managing CRP, and attention should be paid to patients at greatest risk of severe CRP.
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Affiliation(s)
- V Ambrogi
- Public Health Department, Pitié-Salpêtrière Hospital, Paris, France
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Gentile G, Ambrogi V, Cerruti P, Di Maio R, Nasti G, Carfagna C. Pros and cons of melt annealing on the properties of MWCNT/polypropylene composites. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.08.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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della Vecchia NF, Cerruti P, Gentile G, Errico ME, Ambrogi V, D'Errico G, Longobardi S, Napolitano A, Paduano L, Carfagna C, d'Ischia M. Artificial biomelanin: highly light-absorbing nano-sized eumelanin by biomimetic synthesis in chicken egg white. Biomacromolecules 2014; 15:3811-6. [PMID: 25224565 DOI: 10.1021/bm501139h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The spontaneous oxidative polymerization of 0.01-1% w/w 5,6-dihydroxyindole (DHI) in chicken egg white (CEW) in the absence of added solvents leads to a black, water-soluble, and processable artificial biomelanin (ABM) with robust and 1 order of magnitude stronger broadband light absorption compared to natural and synthetic eumelanin suspensions. Small angle neutron scattering (SANS) and transmission electron microscopy (TEM) analysis indicated the presence in the ABM matrix of isolated eumelanin nanoparticles (≤100 nm) differing in shape from pure DHI melanin nanoparticles (SANS evidence). Electron paramagnetic resonance (EPR) spectra showed a slightly asymmetric signal (g ∼ 2.0035) similar to that of solid DHI melanin but with a smaller amplitude (ΔB), suggesting hindered spin delocalization in biomatrix. Enhanced light absorption, altered nanoparticle morphology and decreased free radical delocalization in ABM would reflect CEW-induced inhibition of eumelanin aggregation during polymerization accompanied in part by covalent binding of growing polymer to the proteins (SDS-PAGE evidence). The technological potential of eumelanin nanosizing by biomimetic synthesis within a CEW biomatrix is demonstrated by the preparation of an ABM-based black flexible film with characteristics comparable to those of commercially available polymers typically used in electronics and biomedical applications.
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Phé V, Léon P, Ambrogi V, Rouprêt M, Mozer P, Denys P, Chartier-Kastler E. Résultats fonctionnels à très long terme du sphincter urinaire artificiel AMS 800 chez les patients neurologiques. Ann Phys Rehabil Med 2014. [DOI: 10.1016/j.rehab.2014.03.320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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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Grilli S, Coppola S, Nasti G, Vespini V, Gentile G, Ambrogi V, Carfagna C, Ferraro P. Hybrid ferroelectric–polymer microfluidic device for dielectrophoretic self-assembling of nanoparticles. RSC Adv 2014. [DOI: 10.1039/c3ra45698f] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Gennari O, Grilli S, Coppola S, Pagliarulo V, Vespini V, Coppola G, Bhowmick S, Gioffré MA, Gentile G, Ambrogi V, Cerruti P, Carfagna C, Ferraro P. Spontaneous assembly of carbon-based chains in polymer matrixes through surface charge templates. Langmuir 2013; 29:15503-15510. [PMID: 24313621 DOI: 10.1021/la403603d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Stable chains of carbon-based nanoparticles were formed directly in polymer matrixes through an electrode-free approach. Spontaneous surface charges were generated pyroelectrically onto functionalized ferroelectric crystals, enabling the formation of electric field gradients that triggered the dipole-dipole interactions responsible for the alignment of the particles, while embedded in the polymer solution. The phenomenon is similar to the dielectrophoretic alignment of carbon nanotubes reported in the literature. However, here the electric fields are generated spontaneously by a simple heat treatment that, simultaneously, aligns the particles and provides the energy necessary for curing the host polymer. The result is a polymer sheet reinforced with well-aligned chains of carbon-based particles, avoiding the invasive implementation of appropriate electrodes and circuits. Because polymers with anisotropic features are of great interest for enhancing the thermal and/or the electrical conductivity, the electrode-free nature of this technique would improve the scaling down and the versatility of those interconnections that find applications in many fields, such as electronics, sensors, and biomedicine. Theoretical simulations of the interactions between the particles and the charge templates were implemented and appear in good agreement with the experimental results. The chain formation was characterized by controlling different parameters, including surface charge configuration, particle concentration, and polymer viscosity, thus demonstrating the reliability of the technique. Moreover, micro-Raman spectroscopy and scanning electron microscopy were used for a thorough inspection of the assembled chains.
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Affiliation(s)
- O Gennari
- National Institute of Optics, National Council of Research of Italy , Via Campi Flegrei 34, 80078 Pozzuoli, Italy
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Ambrogi V, Panzella L, Persico P, Cerruti P, Lonz CA, Carfagna C, Verotta L, Caneva E, Napolitano A, d'Ischia M. An antioxidant bioinspired phenolic polymer for efficient stabilization of polyethylene. Biomacromolecules 2013; 15:302-10. [PMID: 24313867 DOI: 10.1021/bm4015478] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The synthesis, structural characterization and properties of a new bioinspired phenolic polymer (polyCAME) produced by oxidative polymerization of caffeic acid methyl ester (CAME) with horseradish peroxidase (HRP)-H2O2 is reported as a new sustainable stabilizer toward polyethylene (PE) thermal and photo-oxidative degradation. PolyCAME exhibits high stability toward decarboxylation and oxidative degradation during the thermal processes associated with PE film preparation. Characterization of PE films by thermal methods, photo-oxidative treatments combined with chemiluminescence, and FTIR spectroscopy and mechanical tests indicate a significant effect of polyCAME on PE durability. Data from antioxidant capacity tests suggest that the protective effects of polyCAME are due to the potent scavenging activity on aggressive OH radicals, the efficient H-atom donor properties inducing free radical quenching, and the ferric ion reducing ability. PolyCAME is thus proposed as a novel easily accessible, eco-friendly, and biocompatible biomaterial for a sustainable approach to the stabilization of PE films in packaging and other applications.
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Affiliation(s)
- Veronica Ambrogi
- Department of Materials and Production Engineering, University of Naples "Federico II" , P.le Tecchio 80, 80125 Napoli, Italy
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Phe V, Ambrogi V, Rouprêt M, Compérat E, Giuliano F, Chartier-Kastler E. Étude de l’altération de l’activité contractile spontanée des fragments de vessie neurologiques humaines in vitro : quelles conséquences pratiques ? Prog Urol 2013. [DOI: 10.1016/j.purol.2013.08.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ambrogi V, Tézenas Du Montcel S, Bourdillon F. Détection et prévention des douleurs liées aux soins chez les patients hospitalisés. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.07.422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Tylkowski B, Bogdanowicz KA, Ambrogi V, Lederer A, Patroniak V, Giamberini M. Synthesis and characterization of a new family of photoactive liquid crystalline polyesters based on α
-methylstilbene. POLYM INT 2013. [DOI: 10.1002/pi.4507] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bartosz Tylkowski
- Departament d'Enginyeria Química; Universitat Rovira i Virgili; Av. Països Catalans 26 43007 Tarragona Spain
- Centre Tecnològic de la Química de Catalunya; Carrer Marcellí Domingo; s/n, Campus Sescelades 43007 Tarragona Spain
| | - Krzysztof A Bogdanowicz
- Departament d'Enginyeria Química; Universitat Rovira i Virgili; Av. Països Catalans 26 43007 Tarragona Spain
| | - Veronica Ambrogi
- Dipartimento di Ingegneria dei Materiali e della Produzione; Università di Napoli ‘Federico II’; Piazzale Tecchio 80 80125 Napoli Italy
| | - Albena Lederer
- Leibniz Institute of Polymer Research Dresden; Hohe Strasse 6 01069 Dresden Germany
| | - Violetta Patroniak
- Faculty of Chemistry; Adam Mickiewicz University; Grunwaldzka 6 60-780 Poznan Poland
| | - Marta Giamberini
- Departament d'Enginyeria Química; Universitat Rovira i Virgili; Av. Països Catalans 26 43007 Tarragona Spain
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Nocchetti M, Donnadio A, Ambrogi V, Andreani P, Bastianini M, Pietrella D, Latterini L. Ag/AgCl nanoparticle decorated layered double hydroxides: synthesis, characterization and antimicrobial properties. J Mater Chem B 2013; 1:2383-2393. [DOI: 10.1039/c3tb00561e] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ascione L, Pezzella A, Ambrogi V, Carfagna C, d'Ischia M. Intermolecular π-Electron Perturbations Generate Extrinsic Visible Contributions to Eumelanin Black Chromophore in Model Polymers with Interrupted Interring Conjugation. Photochem Photobiol 2012; 89:314-8. [DOI: 10.1111/php.12003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 09/20/2012] [Indexed: 12/01/2022]
Affiliation(s)
- Laura Ascione
- Department of Chemical Sciences; University of Naples Federico II; Naples; Italy
| | - Alessandro Pezzella
- Department of Chemical Sciences; University of Naples Federico II; Naples; Italy
| | - Veronica Ambrogi
- Department of Materials and Production Engineering; University of Naples Federico II; Naples; Italy
| | | | - Marco d'Ischia
- Department of Chemical Sciences; University of Naples Federico II; Naples; Italy
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Persico P, Ambrogi V, Baroni A, Santagata G, Carfagna C, Malinconico M, Cerruti P. Enhancement of poly(3-hydroxybutyrate) thermal and processing stability using a bio-waste derived additive. Int J Biol Macromol 2012; 51:1151-8. [PMID: 22981827 DOI: 10.1016/j.ijbiomac.2012.08.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 08/03/2012] [Accepted: 08/29/2012] [Indexed: 10/27/2022]
Abstract
Poly(3-hydroxybutyrate) (PHB) is a biodegradable polymer, whose applicability is limited by its brittleness and narrow processing window. In this study a pomace extract (EP), from the bio-waste of winery industry, was used as thermal and processing stabilizer for PHB, aimed to engineer a totally bio-based system. The results showed that EP enhanced the thermal stability of PHB, which maintained high molecular weights after processing. This evidence was in agreement with the slower decrease in viscosity over time observed by rheological tests. EP also affected the melt crystallization kinetics and the overall crystallinity extent. Finally, dynamic mechanical and tensile tests showed that EP slightly improved the polymer ductility. The results are intriguing, in view of the development of sustainable alternatives to synthetic polymer additives, thus increasing the applicability of bio-based materials. Moreover, the reported results demonstrated the feasibility of the conversion of an agro-food by-product into a bio-resource in an environmentally friendly and cost-effective way.
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Affiliation(s)
- Paola Persico
- Institute of Polymer Chemistry and Technology (ICTP-CNR), via Campi Flegrei 34, 80078 Pozzuoli (Na), Italy
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Ambrogi V, Gentile G, Ducati C, Oliva MC, Carfagna C. Multiwalled carbon nanotubes functionalized with maleated poly(propylene) by a dry mechano-chemical process. POLYMER 2012. [DOI: 10.1016/j.polymer.2011.11.048] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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