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Gallucci N, Appavou MS, Cowieson N, D'Errico G, Di Girolamo R, Lettieri S, Sica F, Vitiello G, Paduano L. Ordered hierarchical superlattice amplifies coated-CeO 2 nanoparticles luminescence. J Colloid Interface Sci 2024; 659:926-935. [PMID: 38219311 DOI: 10.1016/j.jcis.2024.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 12/30/2023] [Accepted: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Achieving a controlled preparation of nanoparticle superstructures with spatially periodic arrangement, also called superlattices, is one of the most intriguing and open questions in soft matter science. The interest in such regular superlattices originates from the potentialities in tailoring the physicochemical properties of the individual constituent nanoparticles, eventually leading to emerging behaviors and/or functionalities that are not exhibited by the initial building blocks. Despite progress, it is currently difficult to obtain such ordered structures; the influence of parameters, such as size, softness, interaction potentials, and entropy, are neither fully understood yet and not sufficiently studied for 3D systems. In this work, we describe the synthesis and characterization of spatially ordered hierarchical structures of coated cerium oxide nanoparticles in water suspension prepared by a bottom-up approach. Covering the CeO2 surface with amphiphilic molecules having chains of appropriate length makes it possible to form ordered structures in which the particles occupy well-defined positions. In the present case superlattice arrangement is accompanied by an improvement in photoluminescence (PL) efficiency, as an increase in PL intensity of the superlattice structure of up to 400 % compared with that of randomly dispersed nanoparticles was observed. To the best of our knowledge, this is one of the first works in the literature in which the coexistence of 3D structures in solution, such as face-centered cubic (FCC) and Frank-Kasper (FK) phases, of semiconductor nanoparticles have been related to their optical properties.
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Affiliation(s)
- Noemi Gallucci
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Marie-Sousai Appavou
- Jülich Center for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, Lichtenbergstr. 1, 85748 Garching, Germany
| | - Nathan Cowieson
- Diamond Light Source, Didcot, Oxfordshire, England, United Kingdom
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Stefano Lettieri
- Department of Physics, University of Naples Federico II, Via Cupa Cintia 21, 80126 Naples, Italy
| | - Filomena Sica
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Giuseppe Vitiello
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy; Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy,; CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy.
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Pota G, Silvestri B, Vitiello G, Gallucci N, Di Girolamo R, Scialla S, Raucci MG, Ambrosio L, Di Napoli M, Zanfardino A, Varcamonti M, Pezzella A, Luciani G. Towards nanostructured red-ox active bio-interfaces: Bioinspired antibacterial hybrid melanin-CeO 2 nanoparticles for radical homeostasis. Biomater Adv 2023; 153:213558. [PMID: 37467646 DOI: 10.1016/j.bioadv.2023.213558] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 05/29/2023] [Accepted: 07/08/2023] [Indexed: 07/21/2023]
Abstract
Redox-active nano-biointerfaces are gaining weight in the field of regenerative medicine since they can act as enzymes in regulating physiological processes and enabling cell homeostasis, as well as the defense against pathogen aggression. In particular, cerium oxide nanoparticles (CeO2 NPs) stand as intriguing enzyme-mimicking nanoplatforms, owing to the reversible Ce+3/Ce+4 surface oxidation state. Moreover, surface functionalization leads to higher catalytic activity and selectivity, as well as more tunable enzyme-mimicking performances. Conjugation with melanin is an adequate strategy to boost and enrich CeO2 NPs biological features, because of melanin redox properties accounting for intrinsic antioxidant, antimicrobial and anti-inflammatory power. Herein, hybrid Melanin/CeO2 nanostructures were designed by simply coating the metal-oxide nanoparticles with melanin chains, obtained in-situ through ligand-to-metal charge transfer mechanism, according to a bioinspired approach. Obtained hybrid nanostructures underwent detailed physico-chemical characterization. Morphological and textural features were investigated through TEM, XRD and N2 physisorption. The nature of nanoparticle-melanin interaction was analyzed through FTIR, UV-vis and EPR spectroscopy. Melanin-coated hybrid nanostructures exhibited a relevant antioxidant activity, confirmed by a powerful quenching effect for DPPH radical, reaching 81 % inhibition at 33 μg/mL. A promising anti-inflammatory efficacy of the melanin-coated hybrid nanostructures was validated through a significant inhibition of BSA denaturation after 3 h. Meanwhile, the enzyme-mimicking activity was corroborated by a prolonged peroxidase activity after 8 h at 100 μg/mL and a relevant catalase-like action, by halving the H2O2 level in 30 min at 50 μg/mL. Antimicrobial assays attested that conjugation with melanin dramatically boosted CeO2 biocide activity against both Gram (-) and Gram (+) strains. Cytocompatibility tests demonstrated that the melanin coating not only enhanced the CeO2 nanostructures biomimicry, resulting in improved cell viability for human dermal fibroblast cells (HDFs), but mostly they proved that Melanin-CeO2 NPs were able to control the oxidative stress, modulating the production of nitrite and reactive oxygen species (ROS) levels in HDFs, under physiological conditions. Such remarkable outcomes make hybrid melanin-CeO2 nanozymes, promising redox-active interfaces for regenerative medicine.
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Affiliation(s)
- Giulio Pota
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy
| | - Brigida Silvestri
- Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, Via Claudio 21, 80125 Naples, Italy
| | - Giuseppe Vitiello
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy; CSGI, Center for Colloid and Surface Science, via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Noemi Gallucci
- Department of Chemical Sciences, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Stefania Scialla
- Institute for Polymers Composites and Biomaterials (IPCB) CNR Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy
| | - Maria Grazia Raucci
- Institute for Polymers Composites and Biomaterials (IPCB) CNR Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy
| | - Luigi Ambrosio
- Institute for Polymers Composites and Biomaterials (IPCB) CNR Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy
| | - Michela Di Napoli
- Department of Biology, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Anna Zanfardino
- Department of Biology, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Mario Varcamonti
- Department of Biology, University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy
| | - Alessandro Pezzella
- Institute for Polymers Composites and Biomaterials (IPCB) CNR Via Campi Flegrei 34, I-80078 Pozzuoli, NA, Italy; Department of Physics "Ettore Pancini", University of Naples Federico II Via Cinthia 4, 80126 Naples, Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti, 9, 50121 Florence, Italy
| | - Giuseppina Luciani
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, Piazzale V. Tecchio 80, 80125 Naples, Italy.
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Bosso A, Tortora F, Culurciello R, Di Nardo I, Pistorio V, Carraturo F, Colecchia A, Di Girolamo R, Cafaro V, Notomista E, Ingenito R, Pizzo E. Simultaneous Irradiation with UV-A, -B, and -C Lights Promotes Effective Decontamination of Planktonic and Sessile Bacteria: A Pilot Study. Int J Mol Sci 2023; 24:12951. [PMID: 37629131 PMCID: PMC10454392 DOI: 10.3390/ijms241612951] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/13/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Surfaces in highly anthropized environments are frequently contaminated by both harmless and pathogenic bacteria. Accidental contact between these contaminated surfaces and people could contribute to uncontrolled or even dangerous microbial diffusion. Among all possible solutions useful to achieve effective disinfection, ultraviolet irradiations (UV) emerge as one of the most "Green" technologies since they can inactivate microorganisms via the formation of DNA/RNA dimers, avoiding the environmental pollution associated with the use of chemical sanitizers. To date, mainly UV-C irradiation has been used for decontamination purposes, but in this study, we investigated the cytotoxic potential on contaminated surfaces of combined UV radiations spanning the UV-A, UV-B, and UV-C spectrums, obtained with an innovative UV lamp never conceived so far by analyzing its effect on a large panel of collection and environmental strains, further examining any possible adverse effects on eukaryotic cells. We found that this novel device shows a significant efficacy on different planktonic and sessile bacteria, and, in addition, it is compatible with eukaryotic skin cells for short exposure times. The collected data strongly suggest this new lamp as a useful device for fast and routine decontamination of different environments to ensure appropriate sterilization procedures.
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Affiliation(s)
- Andrea Bosso
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | - Francesca Tortora
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | - Rosanna Culurciello
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | - Ilaria Di Nardo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | - Valeria Pistorio
- Centre de Recherche Saint-Antoine (CRSA), Sorbonne University, Inserm, 75012 Paris, France;
| | - Federica Carraturo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
- Hygiene Laboratory, Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), University of Naples Federico II, 80146 Naples, Italy
| | - Andrea Colecchia
- Physics Department “Ettore Pancini”, University of Naples Federico II, 80126 Naples, Italy;
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy;
| | - Valeria Cafaro
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
| | | | - Elio Pizzo
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy; (F.T.); (R.C.); (I.D.N.); (F.C.); (V.C.); (E.N.)
- Centro Servizi Metrologici e Tecnologici Avanzati (CeSMA), University of Naples Federico II, 80126 Naples, Italy
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Hejazi S, Restaino OF, Sabbah M, Zannini D, Di Girolamo R, Marotta A, D’Ambrosio S, Krauss IR, Giosafatto CVL, Santagata G, Schiraldi C, Porta R. Physicochemical Characterization of Chitosan/Poly-γ-Glutamic Acid Glass-like Materials. Int J Mol Sci 2023; 24:12495. [PMID: 37569870 PMCID: PMC10419765 DOI: 10.3390/ijms241512495] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
This paper sets up a new route for producing non-covalently crosslinked bio-composites by blending poly-γ-glutamic acid (γ-PGA) of microbial origin and chitosan (CH) through poly-electrolyte complexation under specific experimental conditions. CH and two different molecular weight γ-PGA fractions have been blended at different mass ratios (1/9, 2/8 and 3/7) under acidic pH. The developed materials seemed to behave like moldable hydrogels with a soft rubbery consistency. However, after dehydration, they became exceedingly hard, glass-like materials completely insoluble in water and organic solvents. The native biopolymers and their blends underwent comprehensive structural, physicochemical, and thermal analyses. The study confirmed strong physical interactions between polysaccharide and polyamide chains, facilitated by electrostatic attraction and hydrogen bonding. The materials exhibited both crystalline and amorphous structures and demonstrated good thermal stability and degradability. Described as thermoplastic and saloplastic, these bio-composites offer vast opportunities in the realm of polyelectrolyte complexes (PECs). This unique combination of properties allowed the bio-composites to function as glass-like materials, making them highly versatile for potential applications in various fields. They hold potential for use in regenerative medicine, biomedical devices, food packaging, and 3D printing. Their environmentally friendly properties make them attractive candidates for sustainable material development in various industries.
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Affiliation(s)
- Sondos Hejazi
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
| | - Odile Francesca Restaino
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
| | - Mohammed Sabbah
- Department of Nutrition and Food Technology, An-Najah National University, Nablus P400, Palestine;
| | - Domenico Zannini
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
- Institute for Polymers, Composites, and Biomaterials, National Council of Research, 80078 Pozzuoli, Italy;
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
| | - Angela Marotta
- Department of Chemical, Materials and Production Engineering (DICMaPI), University of Naples “Federico II”, 80126 Naples, Italy;
| | - Sergio D’Ambrosio
- Department of Experimental Medicine, Section of Biotechnology and Molecular Biology, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy (C.S.)
| | - Irene Russo Krauss
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
- Consorzio per lo Sviluppo dei Sistemi a Grande Interfase, 50019 Florence, Italy
| | - C. Valeria L. Giosafatto
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
| | - Gabriella Santagata
- Institute for Polymers, Composites, and Biomaterials, National Council of Research, 80078 Pozzuoli, Italy;
| | - Chiara Schiraldi
- Department of Experimental Medicine, Section of Biotechnology and Molecular Biology, University of Campania “Luigi Vanvitelli”, 80138 Naples, Italy (C.S.)
| | - Raffaele Porta
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy; (S.H.); (O.F.R.); or (D.Z.); (R.D.G.); (I.R.K.); (C.V.L.G.)
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Pernice P, Sirleto L, Rossi M, Iodice M, Vergara A, Di Girolamo R, Luciani G, Imparato C, Aronne A. Tunable Raman Gain in Transparent Nanostructured Glass-Ceramic Based on Ba 2NaNb 5O 15 †. Nanomaterials (Basel) 2023; 13:1168. [PMID: 37049262 PMCID: PMC10097038 DOI: 10.3390/nano13071168] [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] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Stimulated Raman scattering in transparent glass-ceramics (TGCs) based on bulk nucleating phase Ba2NaNb5O15 were investigated with the aim to explore the influence of micro- and nanoscale structural transformations on Raman gain. Nanostructured TGCs were synthesized, starting with 8BaO·15Na2O·27Nb2O5·50SiO2 (BaNaNS) glass, by proper nucleation and crystallization heat treatments. TGCs are composed of nanocrystals that are 10-15 nm in size, uniformly distributed in the residual glass matrix, with a crystallinity degree ranging from 30 up to 50% for samples subjected to different heat treatments. A significant Raman gain improvement for both BaNaNS glass and TGCs with respect to SiO2 glass is demonstrated, which can be clearly related to the nanostructuring process. These findings show that the nonlinear optical functionalities of TGC materials can be modulated by controlling the structural transformations at the nanoscale rather than microscale.
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Affiliation(s)
- Pasquale Pernice
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy
| | - Luigi Sirleto
- National Research Council (CNR), Institute of Applied Sciences and Intelligent Systems, Via Pietro Castellino 111, I-80131 Naples, Italy
| | - Manuela Rossi
- Dipartimento di Scienze della Terra dell’Ambiente e delle Risorse, Università degli Studi di Napoli Federico II, Complesso Universitario di M. S. Angelo, Via Cinthia 21, I-80126 Napoli, Italy
- National Research Council (CNR), Institute of Crystallography, Via Amendola 122/o, I-70126 Bari, Italy
| | - Mario Iodice
- National Research Council (CNR), Institute of Applied Sciences and Intelligent Systems, Via Pietro Castellino 111, I-80131 Naples, Italy
| | - Alessandro Vergara
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cinthia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Via Cinthia, I-80126 Napoli, Italy
| | - Giuseppina Luciani
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy
| | - Claudio Imparato
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy
| | - Antonio Aronne
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, P.le Tecchio, 80, I-80125 Napoli, Italy
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Scoti M, De Stefano F, Di Girolamo R, Malafronte A, Talarico G, De Rosa C. Crystallization Behavior and Properties of Propylene/4-Methyl-1-pentene Copolymers from a Metallocene Catalyst. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02232] [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: 02/12/2023]
Affiliation(s)
- Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I, 80126 Napoli, Italy
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Lucignano R, Stanzione I, Ferraro G, Di Girolamo R, Cané C, Di Somma A, Duilio A, Merlino A, Picone D. A new and efficient procedure to load bioactive molecules within the human heavy-chain ferritin nanocage. Front Mol Biosci 2023; 10:1008985. [PMID: 36714262 PMCID: PMC9880187 DOI: 10.3389/fmolb.2023.1008985] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 01/02/2023] [Indexed: 01/15/2023] Open
Abstract
For their easy and high-yield recombinant production, their high stability in a wide range of physico-chemical conditions and their characteristic hollow structure, ferritins (Fts) are considered useful scaffolds to encapsulate bioactive molecules. Notably, for the absence of immunogenicity and the selective interaction with tumor cells, the nanocages constituted by the heavy chain of the human variant of ferritin (hHFt) are optimal candidates for the delivery of anti-cancer drugs. hHFt nanocages can be disassembled and reassembled in vitro to allow the loading of cargo molecules, however the currently available protocols present some relevant drawbacks. Indeed, protein disassembly is achieved by exposure to extreme pH (either acidic or alkaline), followed by incubation at neutral pH to allow reassembly, but the final protein recovery and homogeneity are not satisfactory. Moreover, the exposure to extreme pH may affect the structure of the molecule to be loaded. In this paper, we report an alternative, efficient and reproducible procedure to reversibly disassemble hHFt under mild pH conditions. We demonstrate that a small amount of sodium dodecyl sulfate (SDS) is sufficient to disassemble the nanocage, which quantitatively reassembles upon SDS removal. Electron microscopy and X-ray crystallography show that the reassembled protein is identical to the untreated one. The newly developed procedure was used to encapsulate two small molecules. When compared to the existing disassembly/reassembly procedures, our approach can be applied in a wide range of pH values and temperatures, is compatible with a larger number of cargos and allows a higher protein recovery.
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D’Amora U, Soriente A, Ronca A, Scialla S, Perrella M, Manini P, Phua JW, Ottenheim C, Di Girolamo R, Pezzella A, Raucci MG, Ambrosio L. Eumelanin from the Black Soldier Fly as Sustainable Biomaterial: Characterisation and Functional Benefits in Tissue-Engineered Composite Scaffolds. Biomedicines 2022; 10:biomedicines10112945. [PMID: 36428512 PMCID: PMC9687302 DOI: 10.3390/biomedicines10112945] [Citation(s) in RCA: 4] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/11/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022] Open
Abstract
An optimized extraction protocol for eumelanins from black soldier flies (BSF-Eumel) allows an in-depth study of natural eumelanin pigments, which are a valuable tool for the design and fabrication of sustainable scaffolds. Here, water-soluble BSF-Eumel sub-micrometer colloidal particles were used as bioactive signals for developing a composite biomaterial ink for scaffold preparation. For this purpose, BSF-Eumel was characterized both chemically and morphologically; moreover, biological studies were carried out to investigate the dose-dependent cell viability and its influence on human mesenchymal stem cells (hMSCs), with the aim of validating suitable protocols and to find an optimal working concentration for eumelanin-based scaffold preparation. As proof of concept, 3D printed scaffolds based on methacrylated hyaluronic acid (MEHA) and BSF-Eumel were successfully produced. The scaffolds with and without BSF-Eumel were characterized in terms of their physico-chemical, mechanical and biological behaviours. The results showed that MEHA/BSF-Eumel scaffolds had similar storage modulus values to MEHA scaffolds. In terms of swelling ratio and stability, these scaffolds were able to retain their structure without significant changes over 21 days. Biological investigations demonstrated the ability of the bioactivated scaffolds to support the adhesion, proliferation and osteogenic differentiation of human mesenchymal stem cells.
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Affiliation(s)
- Ugo D’Amora
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
| | - Alessandra Soriente
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
| | - Alfredo Ronca
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
- Correspondence: (A.R.); (P.M.)
| | - Stefania Scialla
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
| | - Martina Perrella
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
| | - Paola Manini
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
- Bioelectronics Task Force, University of Naples Federico II, 80126 Naples, Italy
- Correspondence: (A.R.); (P.M.)
| | - Jun Wei Phua
- Insectta, 60 Jalan Penjara, Singapore 149375, Singapore
| | | | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Alessandro Pezzella
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
- Bioelectronics Task Force, University of Naples Federico II, 80126 Naples, Italy
- Department of Physics “E. Pancini”, University of Naples Federico II, 80126 Naples, Italy
| | - Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
- Bioelectronics Task Force, University of Naples Federico II, 80126 Naples, Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80135 Naples, Italy
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Scoti M, De Stefano F, Di Girolamo R, Malafronte A, Talarico G, De Rosa C. Model of Crystallization Behavior of Isotactic Polypropylene: The Role of Defects. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200262] [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: 11/18/2022]
Affiliation(s)
- Miriam Scoti
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche Università di Napoli “Federico II” Complesso Monte S.Angelo, Via Cintia Napoli I‐80126 Italy
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10
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Campanile R, Acunzo A, Scardapane E, Minopoli A, Martins VC, Di Girolamo R, Cardoso S, Velotta R, Della Ventura B, Iannotti V. Multifunctional Core@Satellite Magnetic Particles for Magnetoresistive Biosensors. ACS Omega 2022; 7:36543-36550. [PMID: 36278054 PMCID: PMC9583337 DOI: 10.1021/acsomega.2c04442] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Magnetoresistive (MR) biosensors combine distinctive features such as small size, low cost, good sensitivity, and propensity to be arrayed to perform multiplexed analysis. Magnetic nanoparticles (MNPs) are the ideal target for this platform, especially if modified not only to overcome their intrinsic tendency to aggregate and lack of stability but also to realize an interacting surface suitable for biofunctionalization without strongly losing their magnetic response. Here, we describe an MR biosensor in which commercial MNP clusters were coated with gold nanoparticles (AuNPs) and used to detect human IgG in water using an MR biochip that comprises six sensing regions, each one containing five U-shaped spin valve sensors. The isolated AuNPs (satellites) were stuck onto an aggregate of individual iron oxide crystals (core) so that the resulting core@satellite magnetic particles (CSMPs) could be functionalized by the photochemical immobilization technique-an easy procedure that leads to oriented antibodies immobilized upright onto gold. The morphological, optical, hydrodynamic, magnetic, and surface charge properties of CSMPs were compared with those exhibited by the commercial MNP clusters showing that the proposed coating procedure endows the MNP clusters with stability and ductility without being detrimental to magnetic properties. Eventually, the high-performance MR biosensor allowed us to detect human IgG in water with a detection limit of 13 pM (2 ng mL-1). Given its portability, the biosensor described in this paper lends itself to a point-of-care device; moreover, the features of the MR biochip also make it suitable for multiplexed analysis.
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Affiliation(s)
- Raffaele Campanile
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Adriano Acunzo
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Emanuela Scardapane
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Antonio Minopoli
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Veronica C. Martins
- INESC—Microsistemas
e Nanotecnologias, Lisboa, Rua Alves Redol 9, 1000-049Lisbon, Portugal
| | - Rocco Di Girolamo
- Department
of Chemistry, University of Naples Federico
II, Via Cintia 26, 80126Naples, Italy
| | - Susana Cardoso
- INESC—Microsistemas
e Nanotecnologias, Lisboa, Rua Alves Redol 9, 1000-049Lisbon, Portugal
- Instituto
Superior Tecnico (IST), Universidade de Lisboa, Av. Rovisco Pais, 1649-004Lisboa, Portugal
| | - Raffaele Velotta
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Bartolomeo Della Ventura
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
| | - Vincenzo Iannotti
- Department
of Physics “E. Pancini”, University
of Naples Federico II, Via Cintia 26, 80126Naples, Italy
- CNR—SPIN
(Institute for Superconductors, Oxides and Other Innovative Materials
and Devices), Piazzale
V. Tecchio 80, 80125Naples, Italy
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11
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Di Girolamo R, Cicolella A, Talarico G, Scoti M, De Stefano F, Giordano A, Malafronte A, De Rosa C. Structure and Morphology of Crystalline Syndiotactic Polypropylene-Polyethylene Block Copolymers. Polymers (Basel) 2022; 14:polym14081534. [PMID: 35458284 PMCID: PMC9031856 DOI: 10.3390/polym14081534] [Citation(s) in RCA: 4] [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: 03/11/2022] [Revised: 04/05/2022] [Accepted: 04/07/2022] [Indexed: 02/05/2023] Open
Abstract
A study of the structure and morphology of diblock copolymers composed of crystallizable blocks of polyethylene (PE) and syndiotactic polypropylene (sPP) having different lengths is reported. In both analyzed samples, the PE block crystallizes first by cooling from the melt (at 130 °C) and the sPP block crystallizes after at a lower temperature. Small angle X-ray scattering (SAXS) recorded during cooling showed three correlation peaks at values of the scattering vector, q1 = 0.12 nm−1, q2 = 0.24 nm−1 and q3 = 0.4 nm−1, indicating development of a lamellar morphology, where lamellar domains of PE and sPP alternate, each domain containing stacks of crystalline lamellae of PE or sPP sandwiched by their own amorphous phase of PE or sPP. At temperatures higher than 120 °C, when only PE crystals are formed, the morphology is defined by the formation of stacks of PE lamellae (17 nm thick) alternating with amorphous layers and with a long period of nearly 52 nm. At lower temperatures, when crystals of sPP are also well-formed, the morphology is more complex. A model of the morphology at room temperature is proposed based on the correlation distances determined from the self-correlation functions extracted from the SAXS data. Lamellar domains of PE (41.5 nm thick) and sPP (8.2 nm thick) alternate, each domain containing stacks of crystalline lamellae sandwiched by their own amorphous phase, forming a global morphology having a total lamellar periodicity of 49.7 nm, characterized by alternating amorphous and crystalline layers, where the crystalline layers are alternatively made of stacks of PE lamellae (22 nm thick) and thinner sPP lamellae (only 3.5 nm thick).
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12
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Cesaro A, Torres MDT, Gaglione R, Dell'Olmo E, Di Girolamo R, Bosso A, Pizzo E, Haagsman HP, Veldhuizen EJA, de la Fuente-Nunez C, Arciello A. Synthetic Antibiotic Derived from Sequences Encrypted in a Protein from Human Plasma. ACS Nano 2022; 16:1880-1895. [PMID: 35112568 DOI: 10.1021/acsnano.1c04496] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Encrypted peptides have been recently found in the human proteome and represent a potential class of antibiotics. Here we report three peptides derived from the human apolipoprotein B (residues 887-922) that exhibited potent antimicrobial activity against drug-resistant Klebsiella pneumoniae, Acinetobacter baumannii, and Staphylococci both in vitro and in an animal model. The peptides had excellent cytotoxicity profiles, targeted bacteria by depolarizing and permeabilizing their cytoplasmic membrane, inhibited biofilms, and displayed anti-inflammatory properties. Importantly, the peptides, when used in combination, potentiated the activity of conventional antibiotics against bacteria and did not select for bacterial resistance. To ensure translatability of these molecules, a protease resistant retro-inverso variant of the lead encrypted peptide was synthesized and demonstrated anti-infective activity in a preclinical mouse model. Our results provide a link between human plasma and innate immunity and point to the blood as a source of much-needed antimicrobials.
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Affiliation(s)
- Angela Cesaro
- Department of Chemical Sciences, University of Naples Federico II, Naples I-80126, Italy
- Department of Biomolecular Health Sciences, Division of Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, The Netherlands
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Marcelo D T Torres
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, Naples I-80126, Italy
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), Rome 00136, Italy
| | - Eliana Dell'Olmo
- Department of Chemical Sciences, University of Naples Federico II, Naples I-80126, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, Naples I-80126, Italy
| | - Andrea Bosso
- Department of Biology, University of Naples Federico II, Naples I-80126, Italy
| | - Elio Pizzo
- Department of Biology, University of Naples Federico II, Naples I-80126, Italy
| | - Henk P Haagsman
- Department of Biomolecular Health Sciences, Division of Infectious Diseases and Immunology, Section Molecular Host Defence, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, The Netherlands
| | - Edwin J A Veldhuizen
- Department of Biomolecular Health Sciences, Division of Infectious Diseases and Immunology, Section Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht 3584 CL, The Netherlands
| | - Cesar de la Fuente-Nunez
- Machine Biology Group, Departments of Psychiatry and Microbiology, Institute for Biomedical Informatics, Institute for Translational Medicine and Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Departments of Bioengineering and Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Penn Institute for Computational Science, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, Naples I-80126, Italy
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), Rome 00136, Italy
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13
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Corrado I, Di Girolamo R, Regalado-González C, Pezzella C. Polyhydroxyalkanoates-Based Nanoparticles as Essential Oil Carriers. Polymers (Basel) 2022; 14:polym14010166. [PMID: 35012189 PMCID: PMC8747694 DOI: 10.3390/polym14010166] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 11/28/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 02/04/2023] Open
Abstract
Plant-derived essential oils (EOs) represent a green alternative to conventional antimicrobial agents in food preservation. Due to their volatility and instability, their application is dependent on the development of efficient encapsulation strategies allowing their protection and release control. Encapsulation in Polyhydroxyalkanoate (PHA)-based nanoparticles (NPs) addresses this challenge, providing a biodegradable and biobased material whose delivery properties can be tuned by varying polymer composition. In this work, EO from Mexican oregano was efficiently encapsulated in Polyhydroxybutyrate (PHB) and Poly-3-hydroxybutyrate-co-hydroxyhexanoate (PHB-HHx)-based NPs by solvent evaporation technique achieving high encapsulation efficiency, (>60%) and loading capacity, (about 50%). The obtained NPs displayed a regular distribution with a size range of 150–210 nm. In vitro release studies in food simulant media were fitted with the Korsmeyer–Peppas model, indicating diffusion as the main factor controlling the release. The cumulative release was affected by the polymer composition, possibly related to the more amorphous nature of the copolymer, as confirmed by WAXS and DSC analyses. Both the EO-loaded nanosystems displayed antimicrobial activity against Micrococcus luteus, with PHB-HHx-based NPs being even more effective than the pure EO. The results open the way to the effective exploitation of the developed nanosystems in active packaging.
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Affiliation(s)
- Iolanda Corrado
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126 Napoli, Italy; (I.C.); (R.D.G.)
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126 Napoli, Italy; (I.C.); (R.D.G.)
| | - Carlos Regalado-González
- Departamento de Investigación y Posgrado en Alimentos, Facultad de Química, Universidad Autónoma de Querétaro, Cerro de las Campanas s/n, Col. Las Campanas, Queretaro 76010, Mexico;
| | - Cinzia Pezzella
- Department of Agricultural Sciences, University of Naples Federico II, Via Università 100, 80055 Portici, Italy
- Correspondence:
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14
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Di Girolamo R, Santillo C, Malafronte A, Scoti M, De Stefano F, Talarico G, Coates GW, De Rosa C. Structure and morphology of isotactic polypropylene–polyethylene block copolymers prepared with living and stereoselective catalyst. Polym Chem 2022. [DOI: 10.1039/d2py00197g] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Isotactic polypropylene–polyethylene block copolymers prepared with living and stereoselective catalyst allow linking incompatible crystalline polymers giving a lamellar morphology defined by competition between phase separation and crystallization.
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Affiliation(s)
- Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Chiara Santillo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Geoffrey W. Coates
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
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15
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Scoti M, De Stefano F, Di Girolamo R, Talarico G, Malafronte A, De Rosa C. Crystallization of Propene–Pentene Isotactic Copolymers as an Indicator of the General View of the Crystallization Behavior of Isotactic Polypropylene. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01877] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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)
- Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
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16
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Qazanfarzadeh Z, Kadivar M, Shekarchizadeh H, Di Girolamo R, Giosafatto CVL, Porta R. Secalin enzymatically cross-linked by either papain and N-acetyl-dl-homocysteine thiolactone or transglutaminase: Improving of protein functional properties and film manufacturing. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Ruiz de Ballesteros O, De Stefano F, Auriemma F, Di Girolamo R, Scoti M, De Rosa C. Evidence of Nodular Morphology in Syndiotactic Polypropylene from the Quenched State. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01011] [Citation(s) in RCA: 1] [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: 11/30/2022]
Affiliation(s)
- Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Complesso di Monte S. Angelo, via Cintia, 80126 Napoli, Italy
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18
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De Rosa C, Di Girolamo R, Cicolella A, Talarico G, Scoti M. Double Crystallization and Phase Separation in Polyethylene-Syndiotactic Polypropylene Di-Block Copolymers. Polymers (Basel) 2021; 13:polym13162589. [PMID: 34451129 PMCID: PMC8401969 DOI: 10.3390/polym13162589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/25/2021] [Revised: 07/31/2021] [Accepted: 08/01/2021] [Indexed: 11/18/2022] Open
Abstract
Crystallization and phase separation in the melt in semicrystalline block copolymers (BCPs) compete in defining the final solid state structure and morphology. In crystalline–crystalline di-block copolymers the sequence of crystallization of the two blocks plays a definitive role. In this work we show that the use of epitaxial crystallization on selected crystalline substrates allows achieving of a control over the crystallization of the blocks by inducing crystal orientations of the different crystalline phases and a final control over the global morphology. A sample of polyethylene-block-syndiotactic polypropylene (PE-b-sPP) block copolymers has been synthesized with a stereoselective living organometallic catalyst and epitaxially crystallized onto crystals of two different crystalline substrates, p-terphenyl (3Ph) and benzoic acid (BA). The epitaxial crystallization on both substrates produces formation of highly ordered morphologies with crystalline lamellae of sPP and PE highly oriented along one direction. However, the epitaxial crystallization onto 3Ph should generate a single orientation of sPP crystalline lamellae highly aligned along one direction and a double orientation of PE lamellae, whereas BA crystals should induce high orientation of only PE crystalline lamellae. Thanks to the use of the two selective substrates, the final morphology reveals the sequence of crystallization events during cooling from the melt and what is the dominant event that drives the final morphology. The observed single orientation of both crystalline PE and sPP phases on both substrates, indeed, indicates that sPP crystallizes first onto 3Ph defining the overall morphology and PE crystallizes after sPP in the confined interlamellar sPP regions. Instead, PE crystallizes first onto BA defining the overall morphology and sPP crystallizes after PE in the confined interlamellar PE regions. This allows for discriminating between the different crystalline phases and defining the final morphology, which depends on which polymer block crystallizes first on the substrate. This work also shows that the use of epitaxial crystallization and the choice of suitable substrate offer a means to produce oriented nanostructures and morphologies of block copolymers depending on the composition and the substrates.
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Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Naples, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Naples, Italy
| | - Alessandra Cicolella
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Naples, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Naples, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Naples, Italy
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Scoti M, Di Girolamo R, Giusto G, De Stefano F, Auriemma F, Malafronte A, Talarico G, De Rosa C. Mechanical Properties and Elastic Behavior of Copolymers of Syndiotactic Polypropylene with 1-Hexene and 1-Octene. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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)
- Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Giovangiuseppe Giusto
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S.Angelo, Via Cintia, 80126 Napoli, Italy
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20
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Gaglione R, Smaldone G, Cesaro A, Rumolo M, De Luca M, Di Girolamo R, Petraccone L, Del Vecchio P, Oliva R, Notomista E, Pedone E, Arciello A. Impact of a Single Point Mutation on the Antimicrobial and Fibrillogenic Properties of Cryptides from Human Apolipoprotein B. Pharmaceuticals (Basel) 2021; 14:ph14070631. [PMID: 34209895 PMCID: PMC8308739 DOI: 10.3390/ph14070631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022] Open
Abstract
Host defense peptides (HDPs) are gaining increasing interest, since they are endowed with multiple activities, are often effective on multidrug resistant bacteria and do not generally lead to the development of resistance phenotypes. Cryptic HDPs have been recently identified in human apolipoprotein B and found to be endowed with a broad-spectrum antimicrobial activity, with anti-biofilm, wound healing and immunomodulatory properties, and with the ability to synergistically act in combination with conventional antibiotics, while being not toxic for eukaryotic cells. Here, a multidisciplinary approach was used, including time killing curves, differential scanning calorimetry, circular dichroism, ThT binding assays, and transmission electron microscopy analyses. The effects of a single point mutation (Pro → Ala in position 7) on the biological properties of ApoB-derived peptide r(P)ApoBLPro have been evaluated. Although the two versions of the peptide share similar antimicrobial and anti-biofilm properties, only r(P)ApoBLAla peptide was found to exert bactericidal effects. Interestingly, antimicrobial activity of both peptide versions appears to be dependent from their interaction with specific components of bacterial surfaces, such as LPS or LTA, which induce peptides to form β-sheet-rich amyloid-like structures. Altogether, obtained data indicate a correlation between ApoB-derived peptides self-assembling state and their antibacterial activity.
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Affiliation(s)
- Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), 00136 Rome, Italy
| | | | - Angela Cesaro
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Mariano Rumolo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Maria De Luca
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Luigi Petraccone
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Pompea Del Vecchio
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
| | - Rosario Oliva
- Physical Chemistry I—Biophysical Chemistry, Faculty of Chemistry and Chemical Biology, TU Dortmund University, 44227 Dortmund, Germany;
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy;
| | - Emilia Pedone
- Istituto di Biostrutture e Bioimmagini, CNR, 80134 Naples, Italy;
- Research Centre on Bioactive Peptides (CIRPeB), University of Naples Federico II, Via Mezzocannone 16, 80134 Naples, Italy
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (R.G.); (A.C.); (M.R.); (M.D.L.); (R.D.G.); (L.P.); (P.D.V.)
- Istituto Nazionale di Biostrutture e Biosistemi (INBB), 00136 Rome, Italy
- Correspondence: ; Tel.: +39-081-679147
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21
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Auriemma F, Scoti M, De Stefano F, Talarico G, Ruiz de Ballesteros O, Di Girolamo R, Malafronte A, De Rosa C, Cipullo R, Van Duin M. Microstructural insight on strain-induced crystallization of ethylene/propylene(/diene) random copolymers. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123848] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Gallucci N, Vitiello G, Di Girolamo R, Imbimbo P, Monti DM, Tarallo O, Vergara A, Russo Krauss I, Paduano L. Towards the Development of Antioxidant Cerium Oxide Nanoparticles for Biomedical Applications: Controlling the Properties by Tuning Synthesis Conditions. Nanomaterials (Basel) 2021; 11:nano11020542. [PMID: 33672757 PMCID: PMC7924622 DOI: 10.3390/nano11020542] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/12/2021] [Accepted: 02/17/2021] [Indexed: 01/10/2023]
Abstract
In this work CeO2 nanoparticles (CeO2-NPs) were synthesized through the thermal decomposition of Ce(NO3)3·6H2O, using as capping agents either octylamine or oleylamine, to evaluate the effect of alkyl chain length, an issue at 150 °C, in the case of octylamine and at 150 and 250 °C, in the case of oleylamine, to evaluate the effect of the temperature on NPs properties. All the nanoparticles were extensively characterized by a multidisciplinary approach, such as wide-angle X-ray diffraction, transmission electron microscopy, dynamic light scattering, UV-Vis, fluorescence, Raman and FTIR spectroscopies. The analysis of the experimental data shows that the capping agent nature and the synthesis temperature affect nanoparticle properties including size, morphology, aggregation and Ce3+/Ce4+ ratio. Such issues have not been discussed yet, at the best of our knowledge, in the literature. Notably, CeO2-NPs synthesized in the presence of oleylamine at 250 °C showed no tendency to aggregation and we made them water-soluble through a further coating with sodium oleate. The obtained nanoparticles show a less tendency to clustering forming stable aggregates (ranging between 14 and 22 nm) of few NPs. These were tested for biocompatibility and ROS inhibiting activity, demonstrating a remarkable antioxidant activity, against oxidative stress.
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Affiliation(s)
- Noemi Gallucci
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Giuseppe Vitiello
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125 Naples, Italy
- Correspondence: (G.V.); (L.P.)
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
| | - Oreste Tarallo
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
| | - Alessandro Vergara
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
| | - Irene Russo Krauss
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
| | - Luigi Paduano
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy; (N.G.); (R.D.G.); (P.I.); (D.M.M.); (O.T.); (A.V.); (I.R.K.)
- CSGI, Center for Colloid and Surface Science, 50019 Sesto Fiorentino, Italy
- Correspondence: (G.V.); (L.P.)
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23
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Leone G, Zanchin G, Di Girolamo R, De Stefano F, Lorber C, De Rosa C, Ricci G, Bertini F. Correction to Semibatch Terpolymerization of Ethylene, Propylene, and 5-Ethylidene-2-norbornene: Heterogeneous High-Ethylene EPDM Thermoplastic Elastomers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00105] [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: 11/28/2022]
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24
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Ruiz de Ballesteros O, Auriemma F, Di Girolamo R, Malafronte A, Scoti M, De Rosa C. Mechanical properties of isotactic 1-butene-ethylene copolymers from Ziegler-Natta catalyst. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123408] [Citation(s) in RCA: 2] [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: 10/22/2022]
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25
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Zanchin G, Piovano A, Amodio A, De Stefano F, Di Girolamo R, Groppo E, Leone G. NEt 3-Triggered Synthesis of UHMWPE Using Chromium Complexes Bearing Non-innocent Iminopyridine Ligands. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giorgia Zanchin
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
| | - Alessandro Piovano
- Dipartimento di Chimica, NIS Interdepartmental Research Center and INSTM Reference Center, Università degli Studi di Torino, Via G. Quarello 15A, I-10135 Torino, Italy
| | - Alessia Amodio
- Dipartimento di Chimica, NIS Interdepartmental Research Center and INSTM Reference Center, Università degli Studi di Torino, Via G. Quarello 15A, I-10135 Torino, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Elena Groppo
- Dipartimento di Chimica, NIS Interdepartmental Research Center and INSTM Reference Center, Università degli Studi di Torino, Via G. Quarello 15A, I-10135 Torino, Italy
| | - Giuseppe Leone
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
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26
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Scoti M, Di Girolamo R, De Stefano F, Giordano A, Malafronte A, Talarico G, Cipullo R, De Rosa C. Synthesis, structure and properties of copolymers of syndiotactic polypropylene with 1-hexene and 1-octene. Polym Chem 2021. [DOI: 10.1039/d1py00975c] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Incorporation of long branches, such as 1-hexene or 1-octene, in syndiotactic polypropylene gives novel elastomeric materials, whose crystallization behavior and elastic properties can be easily tailored through tuning of the branches concentration.
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Affiliation(s)
- Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Angelo Giordano
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Roberta Cipullo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy
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27
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Corrado I, Abdalrazeq M, Pezzella C, Di Girolamo R, Porta R, Sannia G, Giosafatto CVL. Design and characterization of poly (3-hydroxybutyrate-co-hydroxyhexanoate) nanoparticles and their grafting in whey protein-based nanocomposites. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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De Rosa C, Malafronte A, Di Girolamo R, Auriemma F, Scoti M, Ruiz de Ballesteros O, Coates GW. Morphology of Isotactic Polypropylene–Polyethylene Block Copolymers Driven by Controlled Crystallization. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01316] [Citation(s) in RCA: 9] [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: 11/29/2022]
Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Geoffrey W. Coates
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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29
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Ehm C, Vittoria A, Goryunov GP, Izmer VV, Kononovich DS, Kulyabin PS, Di Girolamo R, Budzelaar PHM, Voskoboynikov AZ, Busico V, Uborsky DV, Cipullo R. A Systematic Study of the Temperature-Induced Performance Decline of ansa-Metallocenes for iPP. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01771] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Christian Ehm
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Antonio Vittoria
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Georgy P. Goryunov
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Vyatcheslav V. Izmer
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Dmitry S. Kononovich
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Pavel S. Kulyabin
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Peter H. M. Budzelaar
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Alexander Z. Voskoboynikov
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Vincenzo Busico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Dmitry V. Uborsky
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Roberta Cipullo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
- DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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Singh M, Zannella C, Folliero V, Di Girolamo R, Bajardi F, Chianese A, Altucci L, Damasco A, Del Sorbo MR, Imperatore C, Rossi M, Valadan M, Varra M, Vergara A, Franci G, Galdiero M, Altucci C. Combating Actions of Green 2D-Materials on Gram Positive and Negative Bacteria and Enveloped Viruses. Front Bioeng Biotechnol 2020; 8:569967. [PMID: 33117781 PMCID: PMC7549698 DOI: 10.3389/fbioe.2020.569967] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/17/2020] [Indexed: 01/05/2023] Open
Abstract
Interactions of novel bi-dimensional nanomaterials and live matter such as bacteria and viruses represent an extremely hot topic due to the unique properties of the innovative nanomaterials, capable in some cases to exhibit bactericide and antiviral actions. The interactions between bacteria and viruses and two dimensional nanosheets are here investigated. We extensively studied the interaction between a gram-negative bacterium, Escherichia coli, and a gram-positive bacterium, Staphylococcus aureus, with two different types of 2D nanoflakes such as MoS2, belonging to the Transition Metal Dichalcogenides family, and Graphene Oxide. The same two types of nanomaterials were employed to study their antiviral action toward the Herpes simplex virus type-1, (HSV-1). The experimental results showed different bactericide impacts as well as different antiviral power between the two nanomaterials. The experimental findings were interpreted in bacteria on the base of the Derjaguin–Landau–Verwey–Overbeek theory. A simple kinetic model of bacterial growth in the presence of the interacting nanosheets is also elaborated, to explain the observed results. The experimental results in viruses are really novel and somewhat surprising, evidencing a stronger antiviral action of Graphene Oxide as compared to MoS2. Results in viruses are complicated to quantitatively interpret due to the complexity of the system under study, constituted by virus/host cell and nanoflake, and due to the lack of a well assessed theoretical context to refer to. Thus, these results are interpreted in terms of qualitative arguments based on the chemical properties of the interactors in the given solvent medium.
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Affiliation(s)
- Manjot Singh
- Laboratory of Bio-Nano-Photonics, Department of Physics "Ettore Pancini", University of Naples "Federico II", Naples, Italy
| | - Carla Zannella
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Veronica Folliero
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy
| | - Francesco Bajardi
- Laboratory of Bio-Nano-Photonics, Department of Physics "Ettore Pancini", University of Naples "Federico II", Naples, Italy.,Istituto Nazionale di Fisica Nucleare, Naples, Italy
| | - Annalisa Chianese
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Achille Damasco
- Laboratory of Bio-Nano-Photonics, Department of Physics "Ettore Pancini", University of Naples "Federico II", Naples, Italy
| | | | | | - Manuela Rossi
- Department of Earth Science, Environment and Resources, University of Naples "Federico II", Naples, Italy
| | - Mohammadhassan Valadan
- Laboratory of Bio-Nano-Photonics, Department of Physics "Ettore Pancini", University of Naples "Federico II", Naples, Italy
| | - Michela Varra
- Department of Pharmacy, University of Naples "Federico II", Naples, Italy
| | - Alessandro Vergara
- Department of Chemical Sciences, University of Naples "Federico II", Naples, Italy
| | - Guanluigi Franci
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi, Italy
| | - Massimiliano Galdiero
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Carlo Altucci
- Laboratory of Bio-Nano-Photonics, Department of Physics "Ettore Pancini", University of Naples "Federico II", Naples, Italy.,Istituto Nazionale di Fisica Nucleare, Naples, Italy
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31
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Campanile R, Scardapane E, Forente A, Granata C, Germano R, Di Girolamo R, Minopoli A, Velotta R, Della Ventura B, Iannotti V. Core-Shell Magnetic Nanoparticles for Highly Sensitive Magnetoelastic Immunosensor. Nanomaterials (Basel) 2020; 10:E1526. [PMID: 32759707 PMCID: PMC7466411 DOI: 10.3390/nano10081526] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/16/2020] [Accepted: 07/30/2020] [Indexed: 12/13/2022]
Abstract
A magnetoelastic (ME) biosensor for wireless detection of analytes in liquid is described. The ME biosensor was tested against human IgG in the range 0-20 μg∙mL-1. The sensing elements, anti-human IgG produced in goat, were immobilized on the surface of the sensor by using a recently introduced photochemical immobilization technique (PIT), whereas a new amplification protocol exploiting gold coated magnetic nanoparticles (core-shell nanoparticles) is demonstrated to significantly enhance the sensitivity. The gold nanoflowers grown on the magnetic core allowed us to tether anti-human IgG to the nanoparticles to exploit the sandwich detection scheme. The experimental results show that the 6 mm × 1 mm × 30 μm ME biosensor with an amplification protocol that uses magnetic nanoparticles has a limit of detection (LOD) lower than 1 nM, works well in water, and has a rapid response time of few minutes. Therefore, the ME biosensor is very promising for real-time wireless detection of pathogens in liquids and for real life diagnostic purpose.
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Affiliation(s)
- Raffaele Campanile
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
- PROMETE Srl, CNR Spin off, Piazzale Tecchio, 45 80125 Napoli, Italy;
| | - Emanuela Scardapane
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
- PROMETE Srl, CNR Spin off, Piazzale Tecchio, 45 80125 Napoli, Italy;
| | - Antonio Forente
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
| | - Carmine Granata
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Via Campi Flegrei 34, I-80078 Pozzuoli, Italy;
- Department of Mathematics and Physics-University of Campania “L. Vanvitelli”, Viale Abramo Lincoln 5, 81100 Caserta, Italy
| | - Roberto Germano
- PROMETE Srl, CNR Spin off, Piazzale Tecchio, 45 80125 Napoli, Italy;
| | - Rocco Di Girolamo
- Department of Chemistry, University of Naples “Federico II”, Via Cintia 26, I-80126 Napoli, Italy;
| | - Antonio Minopoli
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
| | - Raffaele Velotta
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Via Campi Flegrei 34, I-80078 Pozzuoli, Italy;
| | - Bartolomeo Della Ventura
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
- Institute of Applied Sciences and Intelligent Systems of the National Research Council (CNR-ISASI), Via Campi Flegrei 34, I-80078 Pozzuoli, Italy;
| | - Vincenzo Iannotti
- Department of Physics “E. Pancini”, University of Naples Federico II, Via Cintia 26, I-80126 Napoli, Italy; (R.C.); (E.S.); (A.F.); (A.M.); (R.V.); (B.D.V.)
- Institute for Superconducting, Oxides and other Innovative Materials and Devices of the National Research Council (CNR-SPIN), Piazzale V. Tecchio 80, I-80125 Napoli, Italy
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32
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Leone G, Zanchin G, Di Girolamo R, De Stefano F, Lorber C, De Rosa C, Ricci G, Bertini F. Semibatch Terpolymerization of Ethylene, Propylene, and 5-Ethylidene-2-norbornene: Heterogeneous High-Ethylene EPDM Thermoplastic Elastomers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01123] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Giuseppe Leone
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
| | - Giorgia Zanchin
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Fabio De Stefano
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Christian Lorber
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP44099, 31077 Toulouse, France
- UPS, INPT, LCC, Université de Toulouse, 31077 Toulouse, France
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso Monte S. Angelo, via Cintia, I-80126 Napoli, Italy
| | - Giovanni Ricci
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
| | - Fabio Bertini
- CNR, Istituto di Scienze e Tecnologie Chimiche “Giulio Natta” (SCITEC), via A. Corti 12, I-20133 Milano, Italy
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33
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Zambrano G, Chino M, Renzi E, Di Girolamo R, Maglio O, Pavone V, Lombardi A, Nastri F. Clickable artificial heme-peroxidases for the development of functional nanomaterials. Biotechnol Appl Biochem 2020; 67:549-562. [PMID: 33463759 DOI: 10.1002/bab.1969] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/06/2020] [Indexed: 11/08/2022]
Abstract
Artificial metalloenzymes as catalysts are promising candidates for their use in different technologies, such as bioremediation, biomass transformation, or biosensing. Despite this, their practical exploitation is still at an early stage. Immobilized natural enzymes have been proposed to enhance their applicability. Immobilization may offer several advantages: (i) catalyst reuse; (ii) easy separation of the enzyme from the reaction medium; (iii) better tolerance to harsh temperature and pH conditions. Here, we report an easy immobilization procedure of an artificial peroxidase on different surfaces, by means of click chemistry. FeMC6*a, a recently developed peroxidase mimic, has been functionalized with a pegylated aza-dibenzocyclooctyne to afford a "clickable" biocatalyst, namely FeMC6*a-PEG4@DBCO, which easily reacts with azide-functionalized molecules and/or nanomaterials to afford functional bioconjugates. The clicked biocatalyst retains its structural and, to some extent, its functional behaviors, thus housing high potential for biotechnological applications.
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Affiliation(s)
- Gerardo Zambrano
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Marco Chino
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Emilia Renzi
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Ornella Maglio
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy.,Istituto di Biostrutture e Bioimmagini, CNR, Napoli, Italy
| | - Vincenzo Pavone
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Angela Lombardi
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
| | - Flavia Nastri
- Department of Chemical Sciences, University of Napoli "Federico II," Via Cintia, Napoli, Italy
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34
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Ruiz de Ballesteros O, De Rosa C, Auriemma F, Malafronte A, Di Girolamo R, Scoti M. Polymorphism and form II – form I transformation in Ziegler-Natta isotactic 1-butene-ethylene copolymers having a multiblock molecular structure. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Auriemma F, Scoti M, Di Girolamo R, Malafronte A, De Rosa C, Van Duin M. Effect of stretching on the crystallization of un-crosslinked ethylene/propylene(/diene) random copolymers. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122540] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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36
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De Rosa C, Scoti M, Ruiz de Ballesteros O, Di Girolamo R, Auriemma F, Malafronte A. Propylene–Butene Copolymers: Tailoring Mechanical Properties from Isotactic Polypropylene to Polybutene. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00842] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
| | - Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S.Angelo, via Cintia, 80126 Napoli, Italy
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37
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Ehm C, Vittoria A, Goryunov GP, Izmer VV, Kononovich DS, Samsonov OV, Di Girolamo R, Budzelaar PHM, Voskoboynikov AZ, Busico V, Uborsky DV, Cipullo R. An Integrated High Throughput Experimentation/Predictive QSAR Modeling Approach to ansa-Zirconocene Catalysts for Isotactic Polypropylene. Polymers (Basel) 2020; 12:E1005. [PMID: 32349220 PMCID: PMC7284373 DOI: 10.3390/polym12051005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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: 03/28/2020] [Revised: 04/11/2020] [Accepted: 04/18/2020] [Indexed: 12/16/2022] Open
Abstract
Compared to heterogenous Ziegler-Natta systems (ZNS), ansa-metallocene catalysts for the industrial production of isotactic polypropylene feature a higher cost-to-performance balance. In particular, the C2-symmetric bis(indenyl) ansa-zirconocenes disclosed in the 1990s are complex to prepare, less stereo- and/or regioselective than ZNS, and lose performance at practical application temperatures. The golden era of these complexes, though, was before High Throughput Experimentation (HTE) could contribute significantly to their evolution. Herein, we illustrate a Quantitative Structure - Activity Relationship (QSAR) model trained on a robust and highly accurate HTE database. The clear-box QSAR model utilizes, in particular, a limited number of chemically intuitive 3D geometric descriptors that screen various regions of space in and around the catalytic pocket in a modular way thus enabling to quantify individual substituent contributions. The main focus of the paper is on the methodology, which should be of rather broad applicability in molecular organometallic catalysis. Then again, it is worth emphasizing that the specific application reported here led us to identify in a comparatively short time novel zirconocene catalysts rivaling or even outperforming all previous homologues which strongly indicates that the metallocene story is not over yet.
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Affiliation(s)
- Christian Ehm
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Antonio Vittoria
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Georgy P. Goryunov
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Vyatcheslav V. Izmer
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Dmitry S. Kononovich
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Oleg V. Samsonov
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Peter H. M. Budzelaar
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Alexander Z. Voskoboynikov
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Vincenzo Busico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Dmitry V. Uborsky
- Department of Chemistry, Lomonosov Moscow State University, 1/3 Leninskie Gory, 119991 Moscow, Russia; (G.P.G.); (V.V.I.); (D.S.K.); (O.V.S.); (A.Z.V.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
| | - Roberta Cipullo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy; (A.V.); (R.D.G.); (P.H.M.B.); (V.B.)
- Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands
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38
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De Rosa C, Di Girolamo R, Muñoz-García AB, Pavone M, Talarico G. Breaking Symmetry Rules Enhance the Options for Stereoselective Propene Polymerization Catalysis. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00280] [Citation(s) in RCA: 4] [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: 11/30/2022]
Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Ana B. Muñoz-García
- Dipartimento di Fisica “Ettore Pancini”, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Michele Pavone
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, 80126 Napoli, Italy
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39
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Imparato C, Iervolino G, Fantauzzi M, Koral C, Macyk W, Kobielusz M, D'Errico G, Rea I, Di Girolamo R, De Stefano L, Andreone A, Vaiano V, Rossi A, Aronne A. Photocatalytic hydrogen evolution by co-catalyst-free TiO 2/C bulk heterostructures synthesized under mild conditions. RSC Adv 2020; 10:12519-12534. [PMID: 35497602 PMCID: PMC9051216 DOI: 10.1039/d0ra01322f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 03/17/2020] [Indexed: 01/01/2023] Open
Abstract
Hydrogen production by photocatalytic water splitting is one of the most promising sustainable routes to store solar energy in the form of chemical bonds. To obtain significant H2 evolution rates (HERs) a variety of defective TiO2 catalysts were synthesized by means of procedures generally requiring highly energy-consuming treatments, e.g. hydrogenation. Even if a complete understanding of the relationship between defects, electronic structure and catalytic active sites is far from being achieved, the band gap narrowing and Ti3+-self-doping have been considered essential to date. In most reports a metal co-catalyst (commonly Pt) and a sacrificial electron donor (such as methanol) are used to improve HERs. Here we report the synthesis of TiO2/C bulk heterostructures, obtained from a hybrid TiO2-based gel by simple heat treatments at 400 °C under different atmospheres. The electronic structure and properties of the grey or black gel-derived powders are deeply inspected by a combination of classical and less conventional techniques, in order to identify the origin of their photoresponsivity. The defective sites of these heterostructures, namely oxygen vacancies, graphitic carbon and unpaired electrons localized on the C matrix, result in a remarkable visible light activity in spite of the lack of band gap narrowing or Ti3+-self doping. The materials provide HER values ranging from about 0.15 to 0.40 mmol h-1 gcat -1, under both UV- and visible-light irradiation, employing glycerol as sacrificial agent and without any co-catalyst.
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Affiliation(s)
- Claudio Imparato
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II P.le V. Tecchio 80 80125 Napoli Italy
| | - Giuseppina Iervolino
- Department of Industrial Engineering, University of Salerno Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Marzia Fantauzzi
- Department of Chemical and Geological Sciences, University of Cagliari S.S. 554 Bivio per Sestu 09042 Monserrato Cagliari Italy
| | - Can Koral
- Department of Physics, University of Naples Federico II, CNR-SPIN, UOS Napoli Via Cinthia 80126 Napoli Italy
| | - Wojciech Macyk
- Faculty of Chemistry, Jagiellonian University ul. Gronostajowa 2 30-387 Kraków Poland
| | - Marcin Kobielusz
- Faculty of Chemistry, Jagiellonian University ul. Gronostajowa 2 30-387 Kraków Poland
| | - Gerardino D'Errico
- Department of Chemical Sciences, University of Naples Federico II Via Cinthia 80126 Napoli Italy
| | - Ilaria Rea
- Institute for Microelectronics and Microsystems, National Research Council Via P. Castellino 111 80131 Napoli Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II Via Cinthia 80126 Napoli Italy
| | - Luca De Stefano
- Institute for Microelectronics and Microsystems, National Research Council Via P. Castellino 111 80131 Napoli Italy
| | - Antonello Andreone
- Department of Physics, University of Naples Federico II, CNR-SPIN, UOS Napoli Via Cinthia 80126 Napoli Italy
| | - Vincenzo Vaiano
- Department of Industrial Engineering, University of Salerno Via Giovanni Paolo II 132 84084 Fisciano (Salerno) Italy
| | - Antonella Rossi
- Department of Chemical and Geological Sciences, University of Cagliari S.S. 554 Bivio per Sestu 09042 Monserrato Cagliari Italy
| | - Antonio Aronne
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II P.le V. Tecchio 80 80125 Napoli Italy
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40
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De Rosa C, Scoti M, Di Girolamo R, Ballesteros OR, Auriemma F, Malafronte A. Polymorphism in polymers: A tool to tailor material's properties. Polymer Crystallization 2020. [DOI: 10.1002/pcr2.10101] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
| | - Miriam Scoti
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
| | - Odda Ruiz Ballesteros
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
| | - Finizia Auriemma
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
| | - Anna Malafronte
- Dipartimento di Scienze ChimicheUniversità di Napoli Federico II, Complesso Monte S. Angelo Naples Italy
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41
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De Rosa C, Ruiz de Ballesteros O, Di Girolamo R, Malafronte A, Auriemma F, Talarico G, Scoti M. The blocky structure of Ziegler–Natta “random” copolymers: myths and experimental evidence. Polym Chem 2020. [DOI: 10.1039/c9py01485c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When Ziegler–Natta catalysts synthesize “random” copolymers, they give multiblocks copolymers. Chains of butene–ethylene copolymers contain blocks with long and short butene sequences that crystallize in forms II and I of iPB, respectively.
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Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- Complesso Monte S. Angelo
- I-80126 Napoli
- Italy
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42
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De Rosa C, Ruiz de Ballesteros O, Auriemma F, Talarico G, Scoti M, Di Girolamo R, Malafronte A, Piemontesi F, Liguori D, Camurati I, Morini G. Crystallization Behavior of Copolymers of Isotactic Poly(1-butene) with Ethylene from Ziegler–Natta Catalyst: Evidence of the Blocky Molecular Structure. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01570] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Odda Ruiz de Ballesteros
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Giovanni Talarico
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli “Federico II”, Complesso
Monte S.Angelo, Via Cintia, I-80126 Napoli, Italy
| | - Fabrizio Piemontesi
- Basell Poliolefine Italia Srl, Centro Ricerche
G. Natta, P.le G. Donegani 12, I-44122 Ferrara, Italy
| | - Dario Liguori
- Basell Poliolefine Italia Srl, Centro Ricerche
G. Natta, P.le G. Donegani 12, I-44122 Ferrara, Italy
| | - Isabella Camurati
- Basell Poliolefine Italia Srl, Centro Ricerche
G. Natta, P.le G. Donegani 12, I-44122 Ferrara, Italy
| | - Giampiero Morini
- Basell Poliolefine Italia Srl, Centro Ricerche
G. Natta, P.le G. Donegani 12, I-44122 Ferrara, Italy
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43
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Gaglione R, Cesaro A, Dell'Olmo E, Della Ventura B, Casillo A, Di Girolamo R, Velotta R, Notomista E, Veldhuizen EJA, Corsaro MM, De Rosa C, Arciello A. Effects of human antimicrobial cryptides identified in apolipoprotein B depend on specific features of bacterial strains. Sci Rep 2019; 9:6728. [PMID: 31040323 PMCID: PMC6491590 DOI: 10.1038/s41598-019-43063-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 01/03/2019] [Accepted: 04/12/2019] [Indexed: 12/03/2022] Open
Abstract
Cationic Host Defense Peptides (HDPs) are endowed with a broad variety of activities, including direct antimicrobial properties and modulatory roles in the innate immune response. Even if it has been widely demonstrated that bacterial membrane represents the main target of peptide antimicrobial activity, the molecular mechanisms underlying membrane perturbation by HDPs have not been fully clarified yet. Recently, two cryptic HDPs have been identified in human apolipoprotein B and found to be endowed with a broad-spectrum antimicrobial activity, and with anti-biofilm, wound healing and immunomodulatory properties. Moreover, ApoB derived HDPs are able to synergistically act in combination with conventional antibiotics, while being not toxic for eukaryotic cells. Here, by using a multidisciplinary approach, including time killing curves, Zeta potential measurements, membrane permeabilization assays, electron microscopy analyses, and isothermal titration calorimetry studies, the antimicrobial effects of ApoB cryptides have been analysed on bacterial strains either susceptible or resistant to peptide toxicity. Intriguingly, it emerged that even if electrostatic interactions between negatively charged bacterial membranes and positively charged HDPs play a key role in mediating peptide toxicity, they are strongly influenced by the composition of negatively charged bacterial surfaces and by defined extracellular microenvironments.
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Affiliation(s)
- Rosa Gaglione
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Angela Cesaro
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Eliana Dell'Olmo
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | | | - Angela Casillo
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Raffaele Velotta
- Department of Physics, University of Naples Federico II, 80126, Naples, Italy
| | - Eugenio Notomista
- Department of Biology, University of Naples Federico II, 80126, Naples, Italy
| | - Edwin J A Veldhuizen
- Department of Infectious Diseases and Immunology, Division Molecular Host Defence, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Maria Michela Corsaro
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Claudio De Rosa
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy
| | - Angela Arciello
- Department of Chemical Sciences, University of Naples Federico II, 80126, Naples, Italy. .,Istituto Nazionale di Biostrutture e Biosistemi (INBB), Rome, Italy.
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Pirone L, Caldinelli L, Di Lascio S, Di Girolamo R, Di Gaetano S, Fornasari D, Pollegioni L, Benfante R, Pedone E. Molecular insights into the role of the polyalanine region in mediating PHOX2B aggregation. FEBS J 2019; 286:2505-2521. [PMID: 30955232 DOI: 10.1111/febs.14841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 12/21/2018] [Revised: 02/27/2019] [Accepted: 04/04/2019] [Indexed: 11/26/2022]
Abstract
About 90% of congenital central hypoventilation syndrome (CCHS) patients show polyalanine triplet expansions in the coding region of transcription factor PHOX2B, which renders this protein an intriguing target to understand the insurgence of this syndrome and for the design of a novel therapeutical approach. Consistently with the role of PHOX2B as a transcriptional regulator, it is reasonable that a general transcriptional dysregulation caused by the polyalanine expansion might represent an important mechanism underlying CCHS pathogenesis. Therefore, this study focused on the biochemical characterization of different PHOX2B variants, such as a variant containing the correct C-terminal (20 alanines) stretch, one of the most frequent polyalanine expansions (+7 alanines), and a variant lacking the complete alanine stretch (0 alanines). Comparison of the different variants by a multidisciplinary approach based on different methodologies (including circular dichroism, spectrofluorimetry, light scattering, and Atomic Force Microscopy studies) highlighted the propensity to aggregate for the PHOX2B variant containing the polyalanine expansion (+7-alanines), especially in the presence of DNA, while the 0-alanines variant resembled the protein with the correct polyalanine length. Moreover, and unexpectedly, the formation of fibrils was revealed only for the pathological variant, suggesting a plausible role of such fibrils in the insurgence of CCHS.
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Affiliation(s)
- Luciano Pirone
- Institute of Biostructure and Bioimaging, CNR, Napoli, Italy
| | - Laura Caldinelli
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli studi dell'Insubria, Varese, Italy
| | - Simona Di Lascio
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | - Rocco Di Girolamo
- Department of Chemical Sciences, University of Naples Federico II, Italy
| | | | - Diego Fornasari
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
| | - Loredano Pollegioni
- Dipartimento di Biotecnologie e Scienze della Vita, Università degli studi dell'Insubria, Varese, Italy
| | - Roberta Benfante
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Italy
- CNR- Neuroscience Institute, Milan, Italy
| | - Emilia Pedone
- Institute of Biostructure and Bioimaging, CNR, Napoli, Italy
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45
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Boggioni L, Sidari D, Losio S, Stehling UM, Auriemma F, Malafronte A, Di Girolamo R, De Rosa C, Tritto I. Ethylene- co-norbornene Copolymerization Using a Dual Catalyst System in the Presence of a Chain Transfer Agent. Polymers (Basel) 2019; 11:E554. [PMID: 30960538 PMCID: PMC6473246 DOI: 10.3390/polym11030554] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 02/22/2019] [Revised: 03/18/2019] [Accepted: 03/18/2019] [Indexed: 11/23/2022] Open
Abstract
Ethylene-co-norbornene copolymers were synthesized by a dual catalyst system at three concentrations of norbornene in the feed and variable amounts of ZnEt₂, as a possible chain transfer agent. The dual catalyst system consists of two ansa-metallocenes, isopropyliden(η5-cyclopentadienyl)(η⁵-indenyl)zirconium dichloride (1) and isopropyliden(η⁵-3-methylcyclopentadienyl)(η⁵-fluorenyl)zirconium dichloride (2), activated with dimethylanilinium tetrakis(pentafluorophenyl)borate, in presence of TIBA. Values of norbornene content, molecular mass, glass transition temperature, and reactivity ratios r11 and r21 of copolymers prepared in the presence of 1+2 are intermediate between those of reference copolymers. The study of tensile and elastic properties of ethylene-co-norbornene copolymers (poly(E-co-N)s) gave evidence that copolymers were obtained in part through transfer of polymer chains between different transition metal sites. Mechanical properties are clearly different from those expected from a blend of the parent samples and reveal that copolymers obtained in the presence of 1+2 and ZnEt₂ consist of a reactor blend of segmented chains produced by exchange from 2 to 1 and 1 to 2 acting as the ideal compatibilizer of chains produced by the chain transfer from 1 to 1, and from 2 to 2.
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Affiliation(s)
- Laura Boggioni
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy.
| | - Diego Sidari
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy.
| | - Simona Losio
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy.
| | - Udo M Stehling
- TOPAS Advanced Polymers GmbH, Paulistrasse 3, 65926 Frankfurt am Main, Germany.
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy.
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy.
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy.
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, 80126 Napoli, Italy.
| | - Incoronata Tritto
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy.
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Auriemma F, De Rosa C, Scoti M, Di Girolamo R, Malafronte A, D’Alterio MC, Boggioni L, Losio S, Boccia AC, Tritto I. Structure and Mechanical Properties of Ethylene/1-Octene Multiblock Copolymers from Chain Shuttling Technology. Macromolecules 2019. [DOI: 10.1021/acs.macromol.8b02470] [Citation(s) in RCA: 10] [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: 11/28/2022]
Affiliation(s)
- Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | | | - Laura Boggioni
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy
| | - Simona Losio
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy
| | - Antonella Caterina Boccia
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy
| | - Incoronata Tritto
- Istituto per lo Studio delle Macromolecole (ISMAC), Consiglio Nazionale delle Ricerche (CNR), Via E. Bassini 15, 20133 Milano, Italy
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47
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De Rosa C, Malafronte A, Auriemma F, Scoti M, Di Girolamo R, D'Alterio MC, Ricci G, Zanchin G, Leone G. Synthesis, chain conformation and crystal structure of poly(norbornadiene) having repeating 3,5-enchained nortricyclene units. Polym Chem 2019. [DOI: 10.1039/c9py00757a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
When norbornadiene is polymerized with TiCl4/Et2AlCl catalytic system, a unique 3,5-poly(norbornadiene) is obtained. This new polymer is able to crystallize notwithstanding the presence of configurational disorder and packing disorder.
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Affiliation(s)
- Claudio De Rosa
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- I-80126 Napoli
- Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- I-80126 Napoli
- Italy
| | - Finizia Auriemma
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- I-80126 Napoli
- Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- I-80126 Napoli
- Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche
- Università di Napoli “Federico II”
- I-80126 Napoli
- Italy
| | | | - Giovanni Ricci
- CNR-Istituto per lo Studio delle Macromolecole (ISMAC)
- I-20133 Milano
- Italy
| | - Giorgia Zanchin
- CNR-Istituto per lo Studio delle Macromolecole (ISMAC)
- I-20133 Milano
- Italy
| | - Giuseppe Leone
- CNR-Istituto per lo Studio delle Macromolecole (ISMAC)
- I-20133 Milano
- Italy
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48
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Auriemma F, Rosa CD, Scoti M, Girolamo RD, Malafronte A, Galotto NG. Structural Investigation at Nanometric Length Scale of Ethylene/1-Octene Multiblock Copolymers from Chain-Shuttling Technology. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01947] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Finizia Auriemma
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Claudio De Rosa
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Miriam Scoti
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Rocco Di Girolamo
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Anna Malafronte
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
| | - Nella Galotto Galotto
- Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Via Cintia, I-80126 Napoli, Italy
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49
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Boggioni L, Sidari D, Losio S, Stehling UM, Auriemma F, Di Girolamo R, De Rosa C, Tritto I. Ethylene–co–norbornene copolymerization in the presence of a chain transfer agent. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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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50
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Auriemma F, De Rosa C, Scoti M, Di Girolamo R, Malafronte A, Talarico G, Carnahan E. Unveiling the molecular structure of ethylene/1-octene multi-block copolymers from chain shuttling technology. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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