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Pistone A, de Gaetano A, Piperopoulos E, Abate C. Effect of Sodium Hydroxide and Tripolyphosphate on Curcumin Release from Chitosan-Based Macroparticles. Materials (Basel) 2023; 16:5850. [PMID: 37687542 PMCID: PMC10488734 DOI: 10.3390/ma16175850] [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] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/19/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
This work deals with the synthesis of bare and curcumin (CUR)-loaded chitosan (CS)-based macroparticles by ionic gelation using sodium hydroxide (NaOH) or sodium tripolyphosphate (TPP). The resulting spherical-shaped macroparticles were studied using various characterization techniques, Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA), and Differential Scanning Calorimetry (DSC). The release of CUR from the CS-based particles with respect to time was analyzed, and the encapsulation efficiency and degree of swelling were studied. All formulations showed excellent CUR trapping efficiency, exceeding 90%. In particular, the TPP-crosslinked macrobeads released 34 wt% of the charged CUR within minutes, while the remaining 66 wt% was released slowly. The results indicate that the correct choice of gelling agent and its concentration leads to spherical particles capable of encapsulating CUR and releasing it in a wide range of kinetics so that macrospheres can be used in different applications.
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Affiliation(s)
- Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (A.d.G.); (E.P.); (C.A.)
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Calabrese L, Piperopoulos E, Stankov Jovanović V, Nikolić J, Ćirić S, Milone C, Proverbio E. Sorption Capacity of Polydimethylsiloxane Foams Filled with Thermal-Treated Bentonite-Polydimethylsiloxane Composite Foams for Oil Spill Remediation. Materials (Basel) 2023; 16:4818. [PMID: 37445132 DOI: 10.3390/ma16134818] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023]
Abstract
The spillage of oil causes severe and long-lasting impacts on both the environment and human life. It is crucial to carefully reconsider the methods and techniques currently employed to recover spilled oil in order to prevent any possible secondary pollution and save time. Therefore, the techniques used to recover spilled oil should be readily available, highly responsive, cost-effective, environmentally safe, and, last but not least, they should have a high sorption capacity. The use of sorbents obtained from natural materials is considered a suitable approach for dealing with oil spills because of their exceptional physical characteristics that support sustainable environmental protection strategies. This article presents a novel sorbent material, which is a composite siloxane foam filled with bentonite clay, aimed at enhancing the hydrophobic and oleophilic behavior of the material. The thermal treatment of bentonite optimizes its sorption capacity by eliminating water, and increasing the surface area, and, consequently, its interaction with oils. In particular, the maximum sorption capacity is observed in kerosene and naphtha for the bentonite clay thermally treated at 600 °C, showing an uptake at saturation of 496.8% and 520.1%, respectively. Additionally, the reusability of the composite foam is evaluated by squeezing it after reaching its saturation point to determine its sorption capacity and reusability.
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Affiliation(s)
- Luigi Calabrese
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant'Agata, 98166 Messina, Italy
| | - Elpida Piperopoulos
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant'Agata, 98166 Messina, Italy
| | - Vesna Stankov Jovanović
- Department of Chemistry, Faculty of Science and Mathematics, University of Nis, Visegradska 33, 18 000 Nis, Serbia
| | - Jelena Nikolić
- Department of Chemistry, Faculty of Science and Mathematics, University of Nis, Visegradska 33, 18 000 Nis, Serbia
| | - Slobodan Ćirić
- Department of Chemistry, Faculty of Science and Mathematics, University of Nis, Visegradska 33, 18 000 Nis, Serbia
| | - Candida Milone
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant'Agata, 98166 Messina, Italy
| | - Edoardo Proverbio
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant'Agata, 98166 Messina, Italy
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Ferlazzo A, Bressi V, Espro C, Iannazzo D, Piperopoulos E, Neri G. Electrochemical determination of nitrites and sulfites by using waste-derived nanobiochar. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117071] [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: 12/14/2022]
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Piperopoulos E, Calabrese L, Jovanovic VS, Nikolic J, Ciric S, Milone C, Proverbio E. Bentonite‐PDMS
composite foams for oil spill recovery: Sorption performance and kinetics. J Appl Polym Sci 2022. [DOI: 10.1002/app.53003] [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: 11/12/2022]
Affiliation(s)
| | | | | | - Jelena Nikolic
- Department of Chemistry, Faculty of Science and Mathematics University of Nis Nis Serbia
| | - Slobodan Ciric
- Department of Chemistry, Faculty of Science and Mathematics University of Nis Nis Serbia
| | - Candida Milone
- Engineering Department University of Messina Messina Italy
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Calabrese L, Piperopoulos E, Jovanovic VS, Mitic V, Mitic M, Milone C, Proverbio E. Oil spill remediation: Selectivity, sorption, and squeezing capacity of silicone composite foams filled with clinoptilolite. J Appl Polym Sci 2022. [DOI: 10.1002/app.52637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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)
- Luigi Calabrese
- Dipartimento di Ingegneria Università di Messina, Contra di Dio‐Sant'Agata Messina Italy
| | - Elpida Piperopoulos
- Dipartimento di Ingegneria Università di Messina, Contra di Dio‐Sant'Agata Messina Italy
| | | | - Violeta Mitic
- Department of Chemistry, Faculty of Science and Mathematics University of Nis Nis Serbia
| | - Milan Mitic
- Department of Chemistry, Faculty of Science and Mathematics University of Nis Nis Serbia
| | - Candida Milone
- Dipartimento di Ingegneria Università di Messina, Contra di Dio‐Sant'Agata Messina Italy
| | - Edoardo Proverbio
- Dipartimento di Ingegneria Università di Messina, Contra di Dio‐Sant'Agata Messina Italy
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Celesti C, Gervasi T, Cicero N, Giofrè SV, Espro C, Piperopoulos E, Gabriele B, Mancuso R, Lo Vecchio G, Iannazzo D. Titanium Surface Modification for Implantable Medical Devices with Anti-Bacterial Adhesion Properties. Materials (Basel) 2022; 15:ma15093283. [PMID: 35591617 PMCID: PMC9105612 DOI: 10.3390/ma15093283] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 04/29/2022] [Accepted: 05/01/2022] [Indexed: 12/14/2022]
Abstract
Pure titanium and titanium alloys are widely used in dentistry and orthopedics. However, despite their outstanding mechanical and biological properties, implant failure mainly due to post-operative infection still remains a significant concern. The possibility to develop inherent antibacterial medical devices was here investigated by covalently inserting bioactive ammonium salts onto the surface of titanium metal substrates. Titanium discs have been functionalized with quaternary ammonium salts (QASs) and with oleic acid (OA), affording the Ti-AEMAC Ti-GTMAC, Ti-AUTEAB, and Ti-OA samples, which were characterized by ATR-FTIR and SEM-EDX analyses and investigated for the roughness and hydrophilic behavior. The chemical modifications were shown to deeply affect the surface properties of the metal substrates and, as a consequence, their bio-interaction. The bacterial adhesion tests against the Gram-negative Escherichia Coli and Gram-positive Staphylococcus aureus, at 1.5 and 24 h of bacterial contact, showed good anti-adhesion activity for Ti-AUTEAB and Ti-OA samples, containing a long alkyl chain between the silicon atom and the ammonium functionality. In particular, the Ti-AUTEAB sample showed inhibition of bacteria adhesion against Escherichia Coli of about one log with respect to the other samples, after 1.5 h. The results of this study highlight the importance of chemical functionalization in addressing the antimicrobial activity of metal surfaces and could open new perspectives in the development of inherent antibacterial medical devices.
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Affiliation(s)
- Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.E.); (E.P.)
| | - Teresa Gervasi
- Department of Biomedical and Dental Sciences and Morphological and Functional Images, University Hospital of Messina, Via Consolare Valeria, 1, I-98100 Messina, Italy; (T.G.); (N.C.)
| | - Nicola Cicero
- Department of Biomedical and Dental Sciences and Morphological and Functional Images, University Hospital of Messina, Via Consolare Valeria, 1, I-98100 Messina, Italy; (T.G.); (N.C.)
- Science4Life srl, Spin-off Company, University of Messina Viale Ferdinando Stagno D’Alcontres, 31, I-98166 Messina, Italy
| | - Salvatore Vincenzo Giofrè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy; (S.V.G.); (G.L.V.)
| | - Claudia Espro
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.E.); (E.P.)
| | - Elpida Piperopoulos
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.E.); (E.P.)
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, I-87036 Arcavacata di Rende, Italy; (B.G.); (R.M.)
| | - Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, I-87036 Arcavacata di Rende, Italy; (B.G.); (R.M.)
| | - Giovanna Lo Vecchio
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy; (S.V.G.); (G.L.V.)
| | - Daniela Iannazzo
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.E.); (E.P.)
- Correspondence: ; Tel.: +39-090-6765569
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Calabrese L, Fiore V, Piperopoulos E, Badagliacco D, Palamara D, Valenza A, Proverbio E. In situ monitoring of moisture uptake of flax fiber reinforced composites under humid/dry conditions. J Appl Polym Sci 2022. [DOI: 10.1002/app.51969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Luigi Calabrese
- Department of Engineering University of Messina Messina Italy
| | - Vincenzo Fiore
- Department of Engineering University of Palermo Palermo Italy
| | | | | | - Davide Palamara
- Department of Engineering University of Messina Messina Italy
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Piperopoulos E, Scionti G, Atria M, Calabrese L, Proverbio E. Flame-Retardant Performance Evaluation of Functional Coatings Filled with Mg(OH)2 and Al(OH)3. Polymers (Basel) 2022; 14:polym14030372. [PMID: 35160363 PMCID: PMC8838517 DOI: 10.3390/polym14030372] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 12/15/2021] [Revised: 01/13/2022] [Accepted: 01/14/2022] [Indexed: 01/27/2023] Open
Abstract
In the shipbuilding sector (cruises, ferries, etc.), the design and control constraints applied to improve the fire safety conditions of naval vessels are acquiring important relevance. Research activities have aimed at enhancing the fire resistance of structures and surface coatings to make ships’ working environments safer, trying to combine performance, durability and low costs. In this context, the aim of this paper is to develop and optimize flame-retardant coatings for naval applications. In particular, in an acrylic carrier, Mg(OH)2 and Al(OH)3 fillers were added to exalt the fire resistance capabilities of the coatings. Furthermore, the effect of the particle size of the hydroxides on the coatings’ fire resistance was investigated. The coatings were studied by structural (XRD), thermo-physical (TG) and morphological (SEM) characterization to evaluate their thermal stability and the damage level due to fire exposition. Specifically, fire reaction tests were applied at different fire exposure times (15 s, 30 s) to estimate the fire resistance of the proposed coatings compared to the commercial reference. The results show that the coatings based on aluminum and magnesium hydroxides exhibit favorable fire resistance. Particularly, effective performances were observed for short times of exposure to direct flames. Furthermore, the temperature monitoring of the steel alloy support during the test allowed us to evaluate the degree of insulation of the coating, highlighting a better result for the specimen filled with Mg(OH)2, making this product promising for its optimization in this context.
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Affiliation(s)
- Elpida Piperopoulos
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant’Agata, 98166 Messina, Italy; (G.S.); (E.P.)
- Correspondence: (E.P.); (L.C.)
| | - Giuseppe Scionti
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant’Agata, 98166 Messina, Italy; (G.S.); (E.P.)
| | - Mario Atria
- Colorificio Atria, Contrada Camarro Formeca, 91028 Partanna, Italy;
| | - Luigi Calabrese
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant’Agata, 98166 Messina, Italy; (G.S.); (E.P.)
- Correspondence: (E.P.); (L.C.)
| | - Edoardo Proverbio
- Dipartimento di Ingegneria, Università di Messina, Contra di Dio-Sant’Agata, 98166 Messina, Italy; (G.S.); (E.P.)
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Piperopoulos E, Fazio M, Mastronardo E, Lanza M, Milone C. Tuning Mg(OH) 2 Structural, Physical, and Morphological Characteristics for Its Optimal Behavior in a Thermochemical Heat-Storage Application. Materials (Basel) 2021; 14:ma14051091. [PMID: 33652793 PMCID: PMC7956584 DOI: 10.3390/ma14051091] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 11/16/2022]
Abstract
Thermochemical materials (TCM) are among the most promising systems to store high energy density for long-term energy storage. To be eligible as candidates, the materials have to fit many criteria such as complete reversibility of the reaction and cycling stability, high availability of the material at low cost, environmentally friendliness, and non-toxicity. Among the most promising TCM, the Mg(OH)2/MgO system appears worthy of attention for its properties in line with those required. In the last few decades, research focused its attention on the optimization of attractive hydroxide performance to achieve a better thermochemical response, however, often negatively affecting its energy density per unit of volume and therefore compromising its applicability on an industrial scale. In this study, pure Mg(OH)2 was developed using different synthesis procedures. Reverse deposition precipitation and deposition precipitation methods were used to obtain the investigated samples. By adding a cationic surfactant (cetyl trimethylammonium bromide), deposition precipitation Mg(OH)2 (CTAB-DP-MH) or changing the precipitating precursor (N-DP-MH), the structural, physical and morphological characteristics were tuned, and the results were compared with a commercial Mg(OH)2 sample. We identified a correlation between the TCM properties and the thermochemical behavior. In such a context, it was demonstrated that both CTAB-DP-MH and N-DP-MH improved the thermochemical performances of the storage medium concerning conversion (64 wt.% and 74 wt.% respectively) and stored and released heat (887 and 1041 kJ/kgMg(OH)2). In particular, using the innovative technique not yet investigated for thermal energy storage (TES) materials, with NaOH as precipitating precursor, N-DP-MH reached the highest stored and released heat capacity per volume unit, ~684 MJ/m3.
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Affiliation(s)
- Elpida Piperopoulos
- Department of Engineering, University of Messina, 98166 Messina, Italy; (M.F.); (C.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
- Correspondence:
| | - Marianna Fazio
- Department of Engineering, University of Messina, 98166 Messina, Italy; (M.F.); (C.M.)
| | - Emanuela Mastronardo
- Institute of Catalysis and Petrochemistry, Spanish National Research Council (CSIC), E-28049 Madrid, Spain;
| | - Maurizio Lanza
- Institute for Chemical and Physical Processes (IPCF)—CNR, 98158 Messina, Italy;
| | - Candida Milone
- Department of Engineering, University of Messina, 98166 Messina, Italy; (M.F.); (C.M.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy
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Piperopoulos E, Calabrese L, Khaskhoussi A, Proverbio E, Milone C. Thermo-Physical Characterization of Carbon Nanotube Composite Foam for Oil Recovery Applications. Nanomaterials (Basel) 2020; 10:nano10010086. [PMID: 31906429 PMCID: PMC7022692 DOI: 10.3390/nano10010086] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 11/16/2022]
Abstract
To meet the increasing demands for effective cleanup technologies to deal with the oil spill accidents that significantly affect the ecological and environmental systems, promising composite materials based on carbon nanotubes containing silicone foams were investigated. Pump oil, kerosene, and virgin naphtha had been used to assess, during sorption tests, foams behavior. Test results highlighted the advantage of the hydrophobic and oleophilic behavior of carbon nanotubes, and their high mechanical strength for oil spill recovery application was studied. In order to better relate the property-structure relationship for this class of materials, the role and influence of functionalized nanotubes on thermo-physical and morphological characteristics of the foams had been evaluated. The results showed how the pristine nanotubes fillers, despite functionalized ones, led to optimal composite foam performances with high hydrophobic (62 mg g−1) and oleophilic (6830 mg g−1 in kerosene oil) characteristics. The evidenced high oil selectivity was a relevant key point in order to consider the suitable material for oil spill recovery applications. Eventually, the proposed configuration exhibited the best thermo-physical performances and high reusability, leading to the optimal cost-benefits option.
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Affiliation(s)
- Elpida Piperopoulos
- Department of Engineering, University of Messina, 98166 Messina, Italy; (E.P.); (L.C.); (E.P.)
| | - Luigi Calabrese
- Department of Engineering, University of Messina, 98166 Messina, Italy; (E.P.); (L.C.); (E.P.)
| | - Amani Khaskhoussi
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
| | - Edoardo Proverbio
- Department of Engineering, University of Messina, 98166 Messina, Italy; (E.P.); (L.C.); (E.P.)
| | - Candida Milone
- Department of Engineering, University of Messina, 98166 Messina, Italy; (E.P.); (L.C.); (E.P.)
- Correspondence:
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Aacharya R, Abdelmonem AM, Abd-Elsalam KA, Ahmed FK, Alghuthaymi M, Al-Mansob RA, Almoammar H, Alsharef JM, Asran-Amal, Atkovska K, Bajwa SZ, Basta AH, Budihal SV, Calabrese L, Chandrasekaran R, Chatterjee S, Chhipa H, Dimitrov A, El Hamaky AM, EL-Seesy AI, Fathy NA, Firoozi AA, Gabal E, Gacem MA, Gacem H, Gangashe G, Govindasamy P, Grozdanov A, Hamed SF, Hashim AF, Hassan H, Hassan AA, Hassanien MK, He Z, Irshad A, Irshad I, Jampílek J, Kasem K, Khan WS, Kráľová K, Kyzas GZ, Lekhak UM, Lisichkov K, Lotfy VF, Mamba G, Mansour MK, Mastronardo E, Matis KA, Milone C, Mohamed AEMA, Mohamed MA, Moss L, Mostafa M, Munawar A, Muthuraj V, Nkambule TT, Ookawara S, Oraby NH, Ould-El-Hadj-Khelil A, Parwez K, Patil SS, Paunovik P, Piperopoulos E, Proverbio E, Rajiv P, Ramadan MM, Roberto SR, Sarwar N, Sayed El Ahl RM, Shoala T, Taha MR, Thakur S, Vadivel S, Vilakati GD, Youssef K, Zahid M. Contributors. Carbon Nanomaterials for Agri-Food and Environmental Applications 2020:xiii-xviii. [DOI: 10.1016/b978-0-12-819786-8.09989-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Pistone A, Celesti C, Piperopoulos E, Ashok D, Cembran A, Tricoli A, Nisbet D. Engineering of Chitosan-Hydroxyapatite-Magnetite Hierarchical Scaffolds for Guided Bone Growth. Materials (Basel) 2019; 12:ma12142321. [PMID: 31330857 PMCID: PMC6678855 DOI: 10.3390/ma12142321] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/11/2019] [Accepted: 07/16/2019] [Indexed: 12/17/2022]
Abstract
Bioabsorbable materials have received increasing attention as innovative systems for the development of osteoconductive biomaterials for bone tissue engineering. In this paper, chitosan-based composites were synthesized adding hydroxyapatite and/or magnetite in a chitosan matrix by in situ precipitation technique. Composites were characterized by optical and electron microscopy, thermogravimetric analyses (TGA), x-ray diffraction (XRD), and in vitro cell culture studies. Hydroxyapatite and magnetite were found to be homogeneously dispersed in the chitosan matrix and the composites showed superior biocompatibility and the ability to support cell attachment and proliferation; in particular, the chitosan/hydroxyapatite/magnetite composite (CS/HA/MGN) demonstrated superior bioactivity with respect to pure chitosan (CS) and to the chitosan/hydroxyapatite (CS/HA) scaffolds.
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Affiliation(s)
- Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy.
| | - Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Elpida Piperopoulos
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy
| | - Deepu Ashok
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
| | - Arianna Cembran
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Electrical and Energy Engineering, Australian National University, Canberra ACT 2601, Australia
| | - David Nisbet
- Laboratory of Advanced Biomaterials, Research School of Electrical, Energy and Materials Engineering, Australian National University, Canberra ACT 2601, Australia
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Piperopoulos E, Calabrese L, Mastronardo E, Abdul Rahim SH, Proverbio E, Milone C. Assessment of sorption kinetics of carbon nanotube‐based composite foams for oil recovery application. J Appl Polym Sci 2018. [DOI: 10.1002/app.47374] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- E. Piperopoulos
- Department of EngineeringUniversity of Messina 98166 Messina Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) 50121 Florence Italy
| | - L. Calabrese
- Department of EngineeringUniversity of Messina 98166 Messina Italy
- CNR ITAE Institute 98126 Messina Italy
| | - E. Mastronardo
- Thermochemical Processes UnitIMDEA Energy Institute 28935 Madrid Spain
- Materials Science and EngineeringNorthwestern University 60208 Evanston Illinois
| | - S. H. Abdul Rahim
- National Unit for Environmental Research and Services (NUERS)Kuwait University 5969 Khaldiya Kuwait
| | - E. Proverbio
- Department of EngineeringUniversity of Messina 98166 Messina Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) 50121 Florence Italy
| | - C. Milone
- Department of EngineeringUniversity of Messina 98166 Messina Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) 50121 Florence Italy
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Piperopoulos E, Calabrese L, Mastronardo E, Proverbio E, Milone C. Synthesis of reusable silicone foam containing carbon nanotubes for oil spill remediation. J Appl Polym Sci 2017. [DOI: 10.1002/app.46067] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
| | - Luigi Calabrese
- Department of Engineering; University of Messina; Messina 98166 Italy
- CNR ITAE Institute; Messina 98126 Italy
| | - Emanuela Mastronardo
- Department of Engineering; University of Messina; Messina 98166 Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM); Florence 50121 Italy
| | - Edoardo Proverbio
- Department of Engineering; University of Messina; Messina 98166 Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM); Florence 50121 Italy
| | - Candida Milone
- Department of Engineering; University of Messina; Messina 98166 Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM); Florence 50121 Italy
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Malara F, Carallo S, Rotunno E, Lazzarini L, Piperopoulos E, Milone C, Naldoni A. A Flexible Electrode Based on Al-Doped Nickel Hydroxide Wrapped around a Carbon Nanotube Forest for Efficient Oxygen Evolution. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01188] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francesco Malara
- CNR-Istituto di Scienze e Tecnologie Molecolari, Via Golgi 19, 20133 Milan, Italy
| | - Sonia Carallo
- Istituto di Nanotecnologia CNR-Nanotec, Polo di Nanotecnologia c/o Campus Ecotekne, Via Monteroni, 73100 Lecce, Italy
| | - Enzo Rotunno
- IMEM-CNR, Parco Area
delle Scienze 37/A, 43100 Parma, Italy
| | | | | | - Candida Milone
- Dipartimento
di Ingegneria, Università di Messina, 98166 Messina, Italy
| | - Alberto Naldoni
- CNR-Istituto di Scienze e Tecnologie Molecolari, Via Golgi 19, 20133 Milan, Italy
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 11, 783 71 Olomouc, Czech Republic
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16
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Villa A, Plebani M, Schiavoni M, Milone C, Piperopoulos E, Galvagno S, Prati L. Tuning hydrophilic properties of carbon nanotubes: A challenge for enhancing selectivity in Pd catalyzed alcohol oxidation. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.09.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Santangelo S, Piperopoulos E, Lanza M, Milone C. Growth and analysis of C nanotubes on ceramic polymer-additives. J Nanosci Nanotechnol 2012; 12:4786-4797. [PMID: 22905531 DOI: 10.1166/jnn.2012.4889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
C nanotubes are synthesized by catalytic route on ceramic supports (Al2O3, MgO and CaO), usually utilized for polymer reinforcing/flame-retardancy, aiming at nanotube-based hybrid preparation. Chemical vapor deposition is carried out in i-C4H10+H2 atmosphere over 17 wt% Fe-catalysts upon different conditions. In order to clarify the influence of support material, calcination (450 degrees C or 750 degrees C) and reduction temperature (500 degrees C or 600 degrees C) of the catalysts, and synthesis temperature (600 degrees C or 700 degrees C), catalysts utilized and nanotubes obtained are systematically investigated by the use of several analysis techniques (electron microscopy, X-ray diffraction, thermo-gravimetry and Raman spectroscopy). The results obtained show that, in the considered range of variation, support material is the most influential parameter. The most catalytically active alumina supports allow achieving higher yields, but involve larger metallic inclusions and lower crystalline quality. Remaining supports behave oppositely. The reasons for such differences are discussed in the light of the current assessments on the nanotube growth and the results obtained are compared with those available in literature for similar catalysts.
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Affiliation(s)
- S Santangelo
- Dept. of Mechanics and Materials, Univ. Mediterranea of Reggio Calabria, 1-89122 Reggio Calabria, Italy
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18
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Pistone A, Ferlazzo A, Lanza M, Milone C, Iannazzo D, Piperno A, Piperopoulos E, Galvagno S. Morphological modification of MWCNT functionalized with HNO3/H2SO4 mixtures. J Nanosci Nanotechnol 2012; 12:5054-60. [PMID: 22905576 DOI: 10.1166/jnn.2012.4928] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The acidic oxidation with HNO3/H2SO4 mixtures is widely reported as an effective method to functionalize multi-walled carbon nanotubes (MWCNT). Although effective, a bad control of the oxidation conditions frequently cause serious modifications of carbon nanotube network, limiting further potential applications. Investigations about the effect of functionalization operating conditions on the morphological, chemical and chemical-physical properties of MWCNT can be useful for a proper setting of oxidation reactions of MWCNT according to their specific applications. In this work the effect of HNO3/H2SO4 ratio on the morphological and chemical-physical properties and on the degree of functionalization of MWCNT was investigated. Electron microscopy, thermogravimetric, X-ray diffraction, titration and water dispersion analyses clearly revealed that the increase of the amount of concentrated sulphuric acid in the HNO3/H2SO4 mixture lead to an increase of the amount of functional groups on the MWCNT surface but also to an increase of structural damage in terms of tube cutting and generation of additional defects in the graphitic network of pristine
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Affiliation(s)
- A Pistone
- Dept. of Industrial Chemistry and Materials Engineering, University of Messina, 1-98166 Messina, Italy
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19
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Santangelo S, Lanza M, Piperopoulos E, Milone C. Optimized CVD production of CNT-based nanohybrids by Taguchi robust design. J Nanosci Nanotechnol 2012; 12:2424-2436. [PMID: 22755069 DOI: 10.1166/jnn.2012.5764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Taguchi's robust design method is for the first time employed to optimize many aspects of the production of nanohybrids based on C nanotubes by iron-catalyzed chemical vapor deposition in i-C4H10 + H2 atmosphere. By analyzing the outcomes of the catalytic process in terms of selectivity, carbon yield, purity and crystalline arrangement of the hybrid-forming nanotubes, the influence is ranked of the following parameters: synthesis temperature (500-700 degrees C), support material (alumina, magnesia or sodium-exchanged montmorillonite), calcination- (450-750 degrees C) and reduction-(500-700 degrees C) temperatures of the 15 wt% Fe-catalyst. In the experiments initially performed for this purpose, the growth process had, on average, scarce selectivity (2 in a scale 1-5) and poor yield (130 wt%); carbonaceous deposits exhibited unsatisfactory graphitization degree (Raman D/G intensity ratio > 1.5) and contained large amounts of metal impurities (14 wt%) and amorphous carbon (5 wt%). The indications emerging from Taguchi approach to the process optimization are critically examined. The experimental conditions chosen for carrying out test experiments allow achieving excellent selectivity (5) or large yield (760 wt%), hybrids with well-graphitized nanotubes (D/G intensity ratio < 0.6), nearly free of metallic (0.3 wt%) or amorphous (0.4 wt%) inclusions, with consequent possibility of satisfying the different requisites that the specific application to be addressed may require.
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Affiliation(s)
- S Santangelo
- Dept. of Mechanics and Materials, Univ. "Mediterranea" of Reggio Calabria, I-89122 Reggio Calabria, Italy
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20
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Milone C, Shahul Hameed AR, Piperopoulos E, Santangelo S, Lanza M, Galvagno S. Catalytic Wet Air Oxidation of p-Coumaric Acid over Carbon Nanotubes and Activated Carbon. Ind Eng Chem Res 2011. [DOI: 10.1021/ie200492g] [Citation(s) in RCA: 26] [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] [Indexed: 11/30/2022]
Affiliation(s)
- Candida Milone
- Department of Industrial Chemistry and Materials Engineering, Materials Engineering Section, University of Messina, Contrada di Dio 98166 Messina, Italy
| | - Abdul Rahim Shahul Hameed
- Department of Industrial Chemistry and Materials Engineering, Materials Engineering Section, University of Messina, Contrada di Dio 98166 Messina, Italy
| | - Elpida Piperopoulos
- Department of Industrial Chemistry and Materials Engineering, Materials Engineering Section, University of Messina, Contrada di Dio 98166 Messina, Italy
| | - Saveria Santangelo
- Department of Mechanics and Materials, Engineering Faculty, “Mediterranea” University, Località Feo di Vito, 89122 Reggio Calabria, Italy
| | - Maurizio Lanza
- CNR, Institute for Chemical Physical Processes, Messina Section, Viale Ferdinando Stagno d’Alcontres, 37 98158 Messina, Italy
| | - Signorino Galvagno
- Department of Industrial Chemistry and Materials Engineering, Materials Engineering Section, University of Messina, Contrada di Dio 98166 Messina, Italy
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Donato MG, Galvagno S, Lanza M, Messina G, Milone C, Piperopoulos E, Pistone A, Santangelo S. Influence of carbon source and Fe-catalyst support on the growth of multi-walled carbon nanotubes. J Nanosci Nanotechnol 2009; 9:3815-3823. [PMID: 19504925 DOI: 10.1166/jnn.2009.ns73] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Catalytic activity of iron based catalysts in the production of multi-walled carbon nanotubes (MWCNTs) has been investigated. The effect of the carbon source (ethane or isobutane), catalyst support (Al2O3 or SiO2), iron loading, catalyst reduction temperature and reaction temperature on yield and quality of carbon products has been examined. The structural and morphological properties of catalyst and carbon products obtained have been analyzed by means of scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), Raman spectroscopy (RS), thermogravimetric analysis (TGA) and X-ray powder diffraction (XRD). The iron-based catalysts supported on alumina seem to be efficient systems for the production of carbon nanotubes from chemical vapor deposition (CVD) of isobutane with very interesting yields. The opportune calibration of reaction parameters, such as iron loading and reaction temperature, can in fact drive the synthesis toward the formation of high quality CNTs.
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Affiliation(s)
- M G Donato
- INFM, Dipartimento di Meccanica e Materiali, Facoltà di Ingegneria, Università Mediterranea, Località Feo di Vito, 89060 Reggio Calabria, Italy
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