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Brasili F, Del Monte G, Capocefalo A, Chauveau E, Buratti E, Casciardi S, Truzzolillo D, Sennato S, Zaccarelli E. Toward a Unified Description of the Electrostatic Assembly of Microgels and Nanoparticles. ACS Appl Mater Interfaces 2023; 15:58770-58783. [PMID: 38060242 DOI: 10.1021/acsami.3c14608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
The interplay of soft responsive particles, such as microgels, with nanoparticles (NPs) yields highly versatile complexes that show great potential for applications, ranging from plasmonic sensing to catalysis and drug delivery. However, the microgel-NP assembly process has not been investigated so far at the microscopic level, thus hindering the possibility of designing such hybrid systems a priori. In this work, we combine state-of-the-art numerical simulations with experiments to elucidate the fundamental mechanisms taking place when microgel-NP assembly is controlled by electrostatic interactions and the associated effects on the structure of the resulting complexes. We find a general behavior where, by increasing the number of interacting NPs, the microgel deswells up to a minimum size after which a plateau behavior occurs. This occurs either when NPs are mainly adsorbed to the microgel corona via the folding of the more external chains or when NPs penetrate inside the microgel, thereby inducing a collective reorganization of the polymer network. By varying microgel properties, such as fraction of cross-linkers or charge, as well as NP size and charge, we further show that the microgel deswelling curves can be rescaled onto a single master curve, for both experiments and simulations, demonstrating that the process is entirely controlled by the charge of the whole microgel-NP complex. Our results thus have a direct relevance in fundamental materials science and offer novel tools to tailor the nanofabrication of hybrid devices of technological interest.
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Affiliation(s)
- Francesco Brasili
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Giovanni Del Monte
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Angela Capocefalo
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio, Coppito, 67100 L'Aquila, Italy
| | - Edouard Chauveau
- UMR 5221, CNRS-Université de Montpellier, Laboratoire Charles Coulomb, 34095 Montpellier, France
| | - Elena Buratti
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance Against Accidents at Work (INAIL), Via di Fontana Candida 1, Monte Porzio Catone, 00078 Rome, Italy
| | - Domenico Truzzolillo
- UMR 5221, CNRS-Université de Montpellier, Laboratoire Charles Coulomb, 34095 Montpellier, France
| | - Simona Sennato
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Emanuela Zaccarelli
- Institute for Complex Systems, National Research Council, Piazzale Aldo Moro 5, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
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2
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Prevete G, Simonis B, Mazzonna M, Mariani F, Donati E, Sennato S, Ceccacci F, Bombelli C. Resveratrol and Resveratrol-Loaded Galactosylated Liposomes: Anti-Adherence and Cell Wall Damage Effects on Staphylococcus aureus and MRSA. Biomolecules 2023; 13:1794. [PMID: 38136664 PMCID: PMC10741626 DOI: 10.3390/biom13121794] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Antibiotic resistance due to bacterial biofilm formation is a major global health concern that makes the search for new therapeutic approaches an urgent need. In this context,, trans-resveratrol (RSV), a polyphenolic natural substance, seems to be a good candidate for preventing and eradicating biofilm-associated infections but its mechanism of action is poorly understood. In addition, RSV suffers from low bioavailability and chemical instability in the biological media that make its encapsulation in delivery systems necessary. In this work, the anti-biofilm activity of free RSV was investigated on Staphylococcus aureus and, to highlight the possible mechanism of action, we studied the anti-adherence activity and also the cell wall damage on a MRSA strain. Free RSV activity was compared to that of RSV loaded in liposomes, specifically neutral liposomes (L = DOPC/Cholesterol) and cationic liposomes (LG = DOPC/Chol/GLT1) characterized by a galactosylated amphiphile (GLT1) that promotes the interaction with bacteria. The results indicate that RSV loaded in LG has anti-adherence and anti-biofilm activity higher than free RSV. On the other side, free RSV has a higher bacterial-growth-inhibiting effect than encapsulated RSV and it can damage cell walls by creating pores; however, this effect can not prevent bacteria from growing again. This RSV ability may underlie its bacteriostatic activity.
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Affiliation(s)
- Giuliana Prevete
- Department of Chemistry and Technology of Drug, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Area della Ricerca di Roma 1, Via Salaria Km 29,300, 00015 Monterotondo, Italy;
| | - Beatrice Simonis
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Secondary Office of Rome-Reaction Mechanisms c/o Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy (F.C.); (C.B.)
| | - Marco Mazzonna
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Area della Ricerca di Roma 1, Via Salaria Km 29,300, 00015 Monterotondo, Italy;
| | - Francesca Mariani
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Area della Ricerca di Roma 1, Via Salaria Km 29,300, 00015 Monterotondo, Italy;
| | - Enrica Donati
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Area della Ricerca di Roma 1, Via Salaria Km 29,300, 00015 Monterotondo, Italy;
| | - Simona Sennato
- Institute for Complex Systems of the Italian National Research Council (ISC-CNR), Sede Sapienza c/o Physics Department, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Francesca Ceccacci
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Secondary Office of Rome-Reaction Mechanisms c/o Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy (F.C.); (C.B.)
| | - Cecilia Bombelli
- Institute for Biological Systems of Italian National Research Council (ISB-CNR), Secondary Office of Rome-Reaction Mechanisms c/o Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy (F.C.); (C.B.)
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Sturabotti E, Camilli A, Georgian Moldoveanu V, Bonincontro G, Simonetti G, Valletta A, Serangeli I, Miranda E, Amato F, Giacomo Marrani A, Migneco LM, Sennato S, Simonis B, Vetica F, Leonelli F. Targeting the Antifungal Activity of Carbon Dots against Candida albicans Biofilm Formation by Tailoring Their Surface Functional Groups. Chemistry 2023:e202303631. [PMID: 38059669 DOI: 10.1002/chem.202303631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/04/2023] [Accepted: 12/07/2023] [Indexed: 12/08/2023]
Abstract
Carbon dots (CDs) are an emerging class of carbon nanoparticles, which for their characteristics have found applications in many fields such as catalysis, materials and biomedicine. Within this context, the application of CDs as antibacterial agents has received much attention in very recent years, while their use as antifungal nanoparticles has been scarcely investigated. Here we report a systematic investigation of the surface functional groups of CDs to study their influence on these nanoparticles' against Candida albicans. Three classes of CDs have been synthesised and fully characterized. A thorough in vitro and in vivo biological screening against C. albicans was performed to test their antifungal, antiadhesion and antibiofilm formation activities. Moreover, the interaction with C. albicans cells was investigated by microscopic analysis. Our results evidence how the presence of a positively polarised surface results crucial for the internalization into COS-7 cells. Positively charged nanoparticles were also able to inhibit adhesion and biofilm formation, to interact with the cellular membrane of C. albicans, and to increase the survival of G. mellonella infected larvae after the injection with positive nanoparticles. The antifungal activity of CDs and their extremely low toxicity may represent a new strategy to combat infections sustained by C.albicans.
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Affiliation(s)
- Elisa Sturabotti
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Alessandro Camilli
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Vyali Georgian Moldoveanu
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Graziana Bonincontro
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Giovanna Simonetti
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Alessio Valletta
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Ilaria Serangeli
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Elena Miranda
- Department of Biology and Biotechnologies "Charles Darwin", Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Francesco Amato
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Andrea Giacomo Marrani
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Luisa Maria Migneco
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Simona Sennato
- CNR-Institute of Complex Systems (ISC)- Sede Sapienza c/o Physics Department, Sapienza University, Piazzale Aldo Moro 5, Rome, Italy
| | - Beatrice Simonis
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
- Institute for Biological Systems (ISB), Italian National Research Council (CNR), Sede secondaria di Roma - Meccanismi di Reazione, c/o Dipartimento di Chimica, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Fabrizio Vetica
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
| | - Francesca Leonelli
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy, URL
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Paseo de Miramón 194, Donostia-San Sebastián, 20014, Spain
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Forte J, Hanieh PN, Poerio N, Olimpieri T, Ammendolia MG, Fraziano M, Fabiano MG, Marianecci C, Carafa M, Bordi F, Sennato S, Rinaldi F. Mucoadhesive Rifampicin-Liposomes for the Treatment of Pulmonary Infection by Mycobacterium abscessus: Chitosan or ε-Poly-L-Lysine Decoration. Biomolecules 2023; 13:924. [PMID: 37371504 DOI: 10.3390/biom13060924] [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: 04/26/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
Mycobacterium abscessus (Mabs) is a dangerous non-tubercular mycobacterium responsible for severe pulmonary infections in immunologically vulnerable patients, due to its wide resistance to many different antibiotics which make its therapeutic management extremely difficult. Drug nanocarriers as liposomes may represent a promising delivery strategy against pulmonary Mabs infection, due to the possibility to be aerosolically administrated and to tune their properties in order to increase nebulization resistance and retainment of encapsulated drug. In fact, liposome surface can be modified by decoration with mucoadhesive polymers to enhance its stability, mucus penetration and prolong its residence time in the lung. The aim of this work is to employ Chitosan or ε-poly-L-lysine decoration for improving the properties of a novel liposomes composed by hydrogenated phosphatidyl-choline from soybean (HSPC) and anionic 1,2-Dipalmitoyl-sn-glycero-3-phosphorylglycerol sodium salt (DPPG) able to entrap Rifampicin. A deep physicochemical characterization of polymer-decorated liposomes shows that both polymers improve mucoadhesion without affecting liposome features and Rifampicin entrapment efficiency. Therapeutic activity on Mabs-infected macrophages demonstrates an effective antibacterial effect of ε-poly-L-lysine liposomes with respect to chitosan-decorated ones. Altogether, these results suggest a possible use of ε-PLL liposomes to improve antibiotic delivery in the lung.
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Affiliation(s)
- Jacopo Forte
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Patrizia Nadia Hanieh
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Noemi Poerio
- Dipartimento di Biologia Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Tommaso Olimpieri
- Dipartimento di Biologia Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Maria Grazia Ammendolia
- Centro Nazionale Tecnologie Innovative in Sanità Pubblica, Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | - Maurizio Fraziano
- Dipartimento di Biologia Università di Roma "Tor Vergata", Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Maria Gioia Fabiano
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Carlotta Marianecci
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Maria Carafa
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Federico Bordi
- Istituto dei Sistemi Complessi (ISC)-CNR, sede "Sapienza" and Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy
| | - Simona Sennato
- Istituto dei Sistemi Complessi (ISC)-CNR, sede "Sapienza" and Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy
| | - Federica Rinaldi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
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De Santis S, Varricchio R, Ceccucci A, Sotgiu G, Di Masi A, Magna G, Sennato S, Orsini M. Cerium Coatings on Pristine and Nanostructured Ti and Ti6Al4V Surfaces: Bioactivity, Resistance in Simulated Inflammatory Conditions, and Antibacterial Performance. ACS Biomater Sci Eng 2023. [PMID: 37150953 DOI: 10.1021/acsbiomaterials.2c01461] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Despite the significant contribution of titanium and its alloys for hard tissue regenerative medicine, some major issues remain to be solved. Implants' long-term stability is threatened by poor osseointegration. Moreover, bacterial adhesion and excessive inflammatory response are also to be considered in the design of a device intended to be integrated into the human body. Here, a cerium mixed oxide (CeOx) coating was realized on pristine and nanotubular-structured Ti and Ti6Al4V surfaces using a simple layer-by-layer drop-casting technique. Bioactivity, resistance in simulated inflammatory conditions, and bactericidal capacity were evaluated as a function of morphological surface characteristics combined with the cerium quantity deposited. The results obtained suggest that the presence of CeOx on the surfaces with nanotubes enhanced osseointegration, while on the non-nanostructured surfaces, this coating improved resistance under oxidative stress and provided excellent antibacterial properties.
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Affiliation(s)
- Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Romualdo Varricchio
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Viale Guglielmo Marconi 446, 00146 Rome, Italy
| | - Anita Ceccucci
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Giovanni Sotgiu
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Alessandra Di Masi
- Department of Science, Section of Biomedical Sciences and Technologies, Roma Tre University, Viale Guglielmo Marconi 446, 00146 Rome, Italy
| | - Gabriele Magna
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy
| | - Simona Sennato
- CNR-ISC Sede Sapienza and Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro, 5, 00185 Rome, Italy
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
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Tavagnacco L, Chiessi E, Severini L, Franco S, Buratti E, Capocefalo A, Brasili F, Mosca Conte A, Missori M, Angelini R, Sennato S, Mazzuca C, Zaccarelli E. Molecular origin of the two-step mechanism of gellan aggregation. Sci Adv 2023; 9:eadg4392. [PMID: 36897940 PMCID: PMC10005172 DOI: 10.1126/sciadv.adg4392] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/02/2023] [Indexed: 05/31/2023]
Abstract
Among hydrocolloids, gellan is one of the most studied polysaccharides due to its ability to form mechanically stable gels. Despite its long-standing use, the gellan aggregation mechanism is still not understood because of the lack of atomistic information. Here, we fill this gap by developing a new gellan force field. Our simulations offer the first microscopic overview of gellan aggregation, detecting the coil to single-helix transition at dilute conditions and the formation of higher-order aggregates at high concentration through a two-step process: first, the formation of double helices and then their assembly into superstructures. For both steps, we also assess the role of monovalent and divalent cations, complementing simulations with rheology and atomic force microscopy experiments and highlighting the leading role of divalent cations. These results pave the way for future use of gellan-based systems in a variety of applications, from food science to art restoration.
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Affiliation(s)
- Letizia Tavagnacco
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Ester Chiessi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Leonardo Severini
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Silvia Franco
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Elena Buratti
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Angela Capocefalo
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Francesco Brasili
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Adriano Mosca Conte
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Mauro Missori
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Roberta Angelini
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Simona Sennato
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Claudia Mazzuca
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Emanuela Zaccarelli
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
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7
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Bauer EM, Bogliardi G, Ricci C, Cecchetti D, De Caro T, Sennato S, Nucara A, Carbone M. Syntheses of APTMS-Coated ZnO: An Investigation towards Penconazole Detection. Materials (Basel) 2022; 15:8050. [PMID: 36431536 PMCID: PMC9697174 DOI: 10.3390/ma15228050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Extrinsic chemiluminescence can be an efficient tool for determining pesticides and fungicides, which do not possess any intrinsic fluorescent signal. On this basis, (3-aminopropyl) trimethoxysilane (APTMS)-coated ZnO (APTMS@ZnO) was synthesized and tested as an extrinsic probe for the fungicide penconazole. Several synthetic routes were probed using either a one-pot or two-steps method, in order to ensure both a green synthetic pathway and a good signal variation for the penconazole concentration. The synthesized samples were characterized using X-ray diffraction (XRD), infrared (IR), Raman and ultraviolet-visible (UV-Vis) spectroscopy, scanning electron microscopy (SEM) imaging and associated energy-dispersive X-ray (EDX) analysis. The average size of the synthesized ZnO nanoparticles (NPs) is 54 ± 10 nm, in line with previous preparations. Of all the samples, those synthesized in two steps, at temperatures ranging from room temperature (RT) to a maximum of 40 °C, using water solvent (G-APTMG@ZnO), appeared to be composed of nanoparticles, homogeneously coated with APTMS. Chemiluminescence tests of G-APTMG@ZnO, in the penconazole concentration range 0.7-1.7 ppm resulted in a quenching of the native signal between 6% and 19% with a good linear response, thus indicating a green pathway for detecting the contaminant. The estimated detection limit (LOD) is 0.1 ± 0.01 ppm.
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Affiliation(s)
- Elvira Maria Bauer
- Institute of Structure of Matter, Italian National Research Council (ISM-CNR), Via Salaria km 29.3, 00015 Monterotondo, RM, Italy
| | - Gabriele Bogliardi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Cosimo Ricci
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
| | - Tilde De Caro
- Institute of Nanostructure Materials, National Research Council (ISMN-CNR), Via Salaria km 29.3, 00015 Monterotondo, RM, Italy
| | - Simona Sennato
- Institute of Complex Systems, Italian National Research Council (ISC-CNR) Sapienza Unit, and Physics Department, Sapienza University, P.le A. Moro 5, 00185 Rome, RM, Italy
| | - Alessandro Nucara
- Department of Physics, Sapienza University, P.le A. Moro 5, 00185 Rome, RM, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 00133 Rome, RM, Italy
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Elancheliyan R, Del Monte G, Chauveau E, Sennato S, Zaccarelli E, Truzzolillo D. Role of Charge Content in the Two-Step Deswelling of Poly( N-isopropylacrylamide)-Based Microgels. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00995] [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: 11/28/2022]
Affiliation(s)
- Rajam Elancheliyan
- Laboratoire Charles Coulomb, UMR 5221, CNRS−Université de Montpellier, F-34095 Montpellier, France
| | - Giovanni Del Monte
- National Research Council−Institute for Complex Systems (CNR-ISC), Sapienza University of Rome, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
| | - Edouard Chauveau
- Laboratoire Charles Coulomb, UMR 5221, CNRS−Université de Montpellier, F-34095 Montpellier, France
| | - Simona Sennato
- National Research Council−Institute for Complex Systems (CNR-ISC), Sapienza University of Rome, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
| | - Emanuela Zaccarelli
- National Research Council−Institute for Complex Systems (CNR-ISC), Sapienza University of Rome, 00185 Rome, Italy
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
| | - Domenico Truzzolillo
- Laboratoire Charles Coulomb, UMR 5221, CNRS−Université de Montpellier, F-34095 Montpellier, France
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9
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Nucara A, Ripanti F, Sennato S, Nisini G, De Santis E, Sefat M, Carbonaro M, Mango D, Minicozzi V, Carbone M. Influence of Cortisol on the Fibril Formation Kinetics of Aβ42 Peptide: A Multi-Technical Approach. Int J Mol Sci 2022; 23:ijms23116007. [PMID: 35682687 PMCID: PMC9180743 DOI: 10.3390/ijms23116007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 11/24/2022] Open
Abstract
Amyloid-β peptide (Aβ) aggregates are known to be correlated with pathological neurodegenerative diseases. The fibril formation process of such peptides in solution is influenced by several factors, such as the ionic strength of the buffer, concentration, pH, and presence of other molecules, just to mention a few. In this paper, we report a detailed analysis of in vitro Aβ42 fibril formation in the presence of cortisol at different relative concentrations. The thioflavin T fluorescence assay allowed us to monitor the fibril formation kinetics, while a morphological characterization of the aggregates was obtained by atomic force microscopy. Moreover, infrared absorption spectroscopy was exploited to investigate the secondary structure changes along the fibril formation path. Molecular dynamics calculations allowed us to understand the intermolecular interactions with cortisol. The combined results demonstrated the influence of cortisol on the fibril formation process: indeed, at cortisol-Aβ42 concentration ratio (ρ) close to 0.1 a faster organization of Aβ42 fragments into fibrils is promoted, while for ρ = 1 the formation of fibrils is completely inhibited.
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Affiliation(s)
- Alessandro Nucara
- Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy;
- Correspondence: (A.N.); (F.R.)
| | - Francesca Ripanti
- Department of Physics and Geology, University of Perugia, Via Alessandro Pascoli, 06123 Perugia, Italy
- Correspondence: (A.N.); (F.R.)
| | - Simona Sennato
- CNR-ISC Sede Sapienza, Department of Physics, Sapienza University, P.le A. Moro 5, 00185 Rome, Italy;
| | - Giacomo Nisini
- Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy;
| | - Emiliano De Santis
- Department of Physics and Astronomy and Department of Chemistry-BMC, Uppsala University, Husargatan 3, 752 37 Uppsala, Sweden;
| | - Mahta Sefat
- School of Pharmacy, Tor Vergata University of Rome, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (M.S.); (D.M.)
| | - Marina Carbonaro
- Council for Agricultural Research and Economics (CREA), Research Centre for Food and Nutrition, Via Ardeatina 546, 00178 Rome, Italy;
| | - Dalila Mango
- School of Pharmacy, Tor Vergata University of Rome, Via della Ricerca Scientifica 1, 00133 Rome, Italy; (M.S.); (D.M.)
- Laboratory Pharmacology of Synaptic Plasticity, European Brain Research Institute, 00161 Rome, Italy
| | - Velia Minicozzi
- Department of Physics and INFN, Tor Vergata University of Rome, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
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10
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Capocefalo A, Bizien T, Sennato S, Ghofraniha N, Bordi F, Brasili F. Responsivity of Fractal Nanoparticle Assemblies to Multiple Stimuli: Structural Insights on the Modulation of the Optical Properties. Nanomaterials 2022; 12:nano12091529. [PMID: 35564238 PMCID: PMC9099587 DOI: 10.3390/nano12091529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/23/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022]
Abstract
Multi-responsive nanomaterials based on the self-limited assembly of plasmonic nanoparticles are of great interest due to their widespread employment in sensing applications. We present a thorough investigation of a hybrid nanomaterial based on the protein-mediated aggregation of gold nanoparticles at varying protein concentration, pH and temperature. By combining Small Angle X-ray Scattering with extinction spectroscopy, we are able to frame the morphological features of the formed fractal aggregates in a theoretical model based on patchy interactions. Based on this, we established the main factors that determine the assembly process and their strong correlation with the optical properties of the assemblies. Moreover, the calibration curves that we obtained for each parameter investigated based on the extinction spectra point out to the notable flexibility of this nanomaterial, enabling the selection of different working ranges with high sensitivity. Our study opens for the rational tuning of the morphology and the optical properties of plasmonic assemblies to design colorimetric sensors with improved performances.
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Affiliation(s)
- Angela Capocefalo
- Institute for Complex Systems (ISC-CNR), National Research Council, 00185 Rome, Italy; (S.S.); (N.G.); (F.B.)
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (A.C.); (F.B.)
| | - Thomas Bizien
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, BP 48, CEDEX, 91192 Gif-sur-Yvette, France;
| | - Simona Sennato
- Institute for Complex Systems (ISC-CNR), National Research Council, 00185 Rome, Italy; (S.S.); (N.G.); (F.B.)
| | - Neda Ghofraniha
- Institute for Complex Systems (ISC-CNR), National Research Council, 00185 Rome, Italy; (S.S.); (N.G.); (F.B.)
| | - Federico Bordi
- Institute for Complex Systems (ISC-CNR), National Research Council, 00185 Rome, Italy; (S.S.); (N.G.); (F.B.)
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
| | - Francesco Brasili
- Institute for Complex Systems (ISC-CNR), National Research Council, 00185 Rome, Italy; (S.S.); (N.G.); (F.B.)
- Department of Physics, Sapienza University of Rome, 00185 Rome, Italy
- Correspondence: (A.C.); (F.B.)
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11
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Arena A, Belcastro E, Ceccacci F, Petrini S, Conti LA, Pagliarosi O, Giorda E, Sennato S, Schiaffini R, Wang P, Paulson JC, Mancini G, Fierabracci A. Improvement of Lipoplexes With a Sialic Acid Mimetic to Target the C1858T PTPN22 Variant for Immunotherapy in Endocrine Autoimmunity. Front Immunol 2022; 13:838331. [PMID: 35355982 PMCID: PMC8959661 DOI: 10.3389/fimmu.2022.838331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/17/2021] [Accepted: 02/15/2022] [Indexed: 01/10/2023] Open
Abstract
The C1858T variant of the protein tyrosine phosphatase N22 (PTPN22) gene is associated with pathophysiological phenotypes in several autoimmune conditions, namely, Type 1 diabetes and autoimmune thyroiditis. The R620W variant protein, encoded by C1858T, leads to a gain of function mutation with paradoxical reduced T cell activation. We previously exploited a novel personalized immunotherapeutic approach based on siRNA delivered by liposomes (lipoplexes, LiposiRNA) that selectively inhibit variant allele expression. In this manuscript, we functionalize lipoplexes carrying siRNA for variant C1858T with a high affinity ligand of Siglec-10 (Sig10L) coupled to lipids resulting in lipoplexes (LiposiRNA-Sig10L) that enhance delivery to Siglec-10 expressing immunocytes. LiposiRNA-Sig10L lipoplexes more efficiently downregulated variant C1858T PTPN22 mRNA in PBMC of heterozygous patients than LiposiRNA without Sig10L. Following TCR engagement, LiposiRNA-Sig10L more significantly restored IL-2 secretion, known to be paradoxically reduced than in wild type patients, than unfunctionalized LiposiRNA in PBMC of heterozygous T1D patients.
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Affiliation(s)
- Andrea Arena
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Eugenia Belcastro
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Francesca Ceccacci
- Centro Nazionale Ricerche Institute for Biological Systems (CNR -ISB), Secondary Office of Rome-Reaction Mechanisms c/o Department of Chemistry, Sapienza University, Rome, Italy
| | - Stefania Petrini
- Research Laboratories, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Libenzio Adrian Conti
- Research Laboratories, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Olivia Pagliarosi
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Ezio Giorda
- Research Laboratories, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Simona Sennato
- CNR Institute for Complex Systems, Secondary Office of Rome c/o Department of Physics, Sapienza University Rome, Rome, Italy
| | - Riccardo Schiaffini
- Diabetes and Growth Pathology Unit, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Peng Wang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
| | - James C Paulson
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, United States
| | - Giovanna Mancini
- Centro Nazionale Ricerche Institute for Biological Systems (CNR-ISB), Area della Ricerca di Roma 1, Monterotondo, Italy
| | - Alessandra Fierabracci
- Infectivology and Clinical Trials Research Department, Bambino Gesù Children's Hospital, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
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12
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Raganato L, Del Giudice A, Ceccucci A, Sciubba F, Casciardi S, Sennato S, Scipioni A, Masci G. Self-assembling nanowires from a linear l,d-peptide conjugated to the dextran end group. Int J Biol Macromol 2022; 207:656-665. [PMID: 35292281 DOI: 10.1016/j.ijbiomac.2022.03.050] [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: 01/28/2022] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 11/28/2022]
Abstract
Preparation and characterization of a block-like l,d-octapeptide-dextran conjugate DEX29-(l-Val-d-Val)4 self-assembling into nanowire structures is reported. The conjugate was prepared by solid phase click-chemistry on an alkyne group N-terminus functionalized peptide with a regularly alternating enantiomeric sequence. Low molecular weight dextran (Xn = 29) with moderately low dispersity (1.30) was prepared by controlled acid hydrolysis and dialysis with selected cut-off and functionalized with an azido group on the reducing end by reductive amination. The strong hydrogen bonds and hydrophobic interactions of the (l-Val-d-Val)4 linear peptide drive the conjugate to self-assemble into long (0.1-1 μm) nanowires. To our knowledge, this is the first example of a peptide-polysaccharide conjugate that can self-assemble into a nanowire architecture.
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Affiliation(s)
- Luca Raganato
- Department of Chemistry, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Alessandra Del Giudice
- Department of Chemistry, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Anita Ceccucci
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, via Vito Volterra 62, Roma, Italy
| | - Fabio Sciubba
- Department of Environmental biology, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; NMR-based Metabolomics Laboratory (NMLab), Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Stefano Casciardi
- National Institute for Insurance Against Accidents at Work (INAIL Research), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Rome, Italy
| | - Simona Sennato
- Institute for Complex Systems, National Research Council (ISC-CNR), Sede Sapienza and Department of Physics, Sapienza Università di Roma, P.le A. Moro, 2, 00185, Rome, Italy
| | - Anita Scipioni
- Department of Chemistry, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy.
| | - Giancarlo Masci
- Department of Chemistry, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy.
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13
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Cecchetti D, Bauer EM, Guerriero E, Sennato S, Tagliatesta P, Tagliaferri M, Cerri L, Carbone M. Comparative treatments of a green tattoo ink with Ruby, Nd:YAG nano- and picosecond lasers in normal and array mode. Sci Rep 2022; 12:3571. [PMID: 35246552 PMCID: PMC8897463 DOI: 10.1038/s41598-022-07021-w] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 02/01/2022] [Indexed: 12/22/2022] Open
Abstract
The tattoos removal has become an issue upon spread of the tattooing practice worldwide and hindsight regrets. Lasers are typically used for the purpose, though some colours such as green are considered “recalcitrant” to the treatment. In the current investigation, we aim at determining the efficacy of removal of a green ink water dispersion, using 5 laser treatments: Nd:YAG nano- and picosecond lasers in normal and array mode and Ruby nanosecond laser, keeping the total irradiated energy constant. The UV–Vis spectroscopy of the treated samples indicate that Nd:YAG picosecond laser is most effective, and the Ruby nanosecond laser is the least efficient. Fragment compounds generated from the pigment and siloxanes are common to all treatments, whereas hydrocarbon emerge by a larger amount upon Nd:YAG nanosecond treatment. Fibres are formed upon picosecond treatments and when operating in array mode, and lamellae are achieved by Ruby nanosecond laser treatment. Residual particles suspensions are very heterogeneous upon nanosecond treatments.
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Affiliation(s)
- Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, 00133, Rome, Italy
| | - Elvira Maria Bauer
- Institute of Structure of Matter, Italian National Research Council (CNR-ISM), Via Salaria km 29.3, 00015, Monterotondo, RM, Italy
| | - Ettore Guerriero
- Institute of Atmospheric Pollution Research, Italian National Research Council (CNR-IIA), Via Salaria km 29.3, 00015, Monterotondo, RM, Italy
| | - Simona Sennato
- Institute of Complex Systems, Italian National Research Council (CNR‑ISC) Sapienza Unit, and Physics Department, Sapienza University, P.le A. Moro 5, 00185, Rome, Italy
| | - Pietro Tagliatesta
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, 00133, Rome, Italy
| | | | - Luca Cerri
- Quanta System S.P.A., Via Acquedotto 109, 21017, Samarate, VA, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica, 1, 00133, Rome, Italy.
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14
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Pagano L, Gkartziou F, Aiello S, Simonis B, Ceccacci F, Sennato S, Ciogli A, Mourtas S, Spiliopoulou I, Antimisiaris SG, Bombelli C, Mancini G. Resveratrol loaded in cationic glucosylated liposomes to treat Staphylococcus epidermidis infections. Chem Phys Lipids 2022; 243:105174. [DOI: 10.1016/j.chemphyslip.2022.105174] [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] [Received: 10/07/2021] [Revised: 12/17/2021] [Accepted: 01/11/2022] [Indexed: 11/28/2022]
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15
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De Santis S, Rossi E, Sebastiani M, Sennato S, Bemporad E, Orsini M. A Nanoindentation Approach for Time-Dependent Evaluation of Surface Free Energy in Micro- and Nano-Structured Titanium. Materials (Basel) 2021; 15:ma15010287. [PMID: 35009432 PMCID: PMC8746133 DOI: 10.3390/ma15010287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/24/2021] [Accepted: 12/24/2021] [Indexed: 02/07/2023]
Abstract
Surface free energy (SFE) of titanium surfaces plays a significant role in tissue engineering, as it affects the effectiveness and long-term stability of both active coatings and functionalization and the establishment of strong bonds to the newly growing bone. A new contact–mechanics methodology based on high-resolution non-destructive elastic contacting nanoindentation is applied here to study SFE of micro- and nano-structured titanium surfaces, right after their preparation and as a function of exposure to air. The effectiveness of different surface treatments in enhancing SFE is assessed. A time-dependent decay of SFE within a few hours is observed, with kinetics related to the sample preparation. The fast, non-destructive method adopted allowed for SFE measurements in very hydrophilic conditions, establishing a reliable comparison between surfaces with different properties.
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Affiliation(s)
- Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy;
- Correspondence:
| | - Edoardo Rossi
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Marco Sebastiani
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Simona Sennato
- CNR-ISC Sede Sapienza, Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Edoardo Bemporad
- Engineering Department, Università Degli Studi Roma Tre, Via Della Vasca Navale 79, 00146 Rome, Italy; (E.R.); (M.S.); (E.B.)
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy;
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16
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Bruno SP, Paolini A, D'Oria V, Sarra A, Sennato S, Bordi F, Masotti A. Extracellular Vesicles Derived From Citrus sinensis Modulate Inflammatory Genes and Tight Junctions in a Human Model of Intestinal Epithelium. Front Nutr 2021; 8:778998. [PMID: 34901124 PMCID: PMC8652296 DOI: 10.3389/fnut.2021.778998] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 09/17/2021] [Accepted: 10/15/2021] [Indexed: 12/12/2022] Open
Abstract
It is widely acknowledged that mammalian exosomes (or extracellular vesicles), have a key role in intercellular communication, owing to the presence of various bioactive molecules such as lipids, proteins, and microRNAs within their inner compartment. Most recently, the discovery of extracellular vesicles isolated from edible plants (such as vegetables and fruits) and their similarity in terms of size and content with exosomes has opened new perspectives on possible intercellular communication and regulation of important biological processes in which these vesicles are involved. It is also well-known that a balanced diet rich of fruits and vegetables (i.e., the Mediterranean diet) can contribute to maintain a “healthy gut” by preserving the intestinal epithelial barrier integrity and avoid that inflammatory stimuli that can alter homeostasis. In our study, we optimized a method to isolate extracellular vesicles from the orange juice (Citrus sinensis) (CS-EVs), and we characterized their morphology and behavior when in contact with the intestinal epithelium. We showed that CS-EVs are stable in a simulated gastrointestinal environment and are absorbed by intestinal cells without toxic effects, as expected. Furthermore, we demonstrated that CS-EVs can alter the gene expression of several genes involved in inflammation (i.e., ICAM1 and HMOX-1) and tight junctions (i.e., OCLN, CLDN1, and MLCK), contributing to limit inflammatory stimuli and restore a functional barrier by increasing the tight junction OCLN protein. Therefore, our study emphasizes the relevant role of fruit-derived extracellular vesicles in modulating important biological processes and maintaining a healthy intestinal epithelium, ultimately promoting human health and well-being.
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Affiliation(s)
| | - Alessandro Paolini
- Research Laboratories, Children's Hospital Bambino Gesù-IRCCS, Rome, Italy
| | - Valentina D'Oria
- Research Laboratories, Children's Hospital Bambino Gesù-IRCCS, Rome, Italy
| | - Angelo Sarra
- Microscopy Center, University of L'Aquila, L'Aquila, Italy.,CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Simona Sennato
- CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Federico Bordi
- CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Andrea Masotti
- Research Laboratories, Children's Hospital Bambino Gesù-IRCCS, Rome, Italy
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17
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Bozzuto G, D'Avenio G, Condello M, Sennato S, Battaglione E, Familiari G, Molinari A, Grigioni M. Label-free cell based impedance measurements of ZnO nanoparticles-human lung cell interaction: a comparison with MTT, NR, Trypan blue and cloning efficiency assays. J Nanobiotechnology 2021; 19:306. [PMID: 34620157 PMCID: PMC8499537 DOI: 10.1186/s12951-021-01033-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/09/2021] [Indexed: 11/23/2022] Open
Abstract
Background There is a huge body of literature data on ZnOnanoparticles (ZnO NPs) toxicity. However, the reported results are seen to be increasingly discrepant, and deep comprehension of the ZnO NPs behaviour in relation to the different experimental conditions is still lacking. A recent literature overview emphasizes the screening of the ZnO NPs toxicity with more than one assay, checking the experimental reproducibility also versus time, which is a key factor for the robustness of the results. In this paper we compared high-throughput real-time measurements through Electric Cell-substrate Impedance-Sensing (ECIS®) with endpoint measurements of multiple independent assays. Results ECIS-measurements were compared with traditional cytotoxicity tests such as MTT, Neutral red, Trypan blue, and cloning efficiency assays. ECIS could follow the cell behavior continuously and noninvasively for days, so that certain long-term characteristics of cell proliferation under treatment with ZnO NPs were accessible. This was particularly important in the case of pro-mitogenic activity exerted by low-dose ZnO NPs, an effect not revealed by endpoint independent assays. This result opens new worrisome questions about the potential mitogenic activity exerted by ZnO NPs, or more generally by NPs, on transformed cells. Of importance, impedance curve trends (morphology) allowed to discriminate between different cell death mechanisms (apoptosis vs autophagy) in the absence of specific reagents, as confirmed by cell structural and functional studies by high-resolution microscopy. This could be advantageous in terms of costs and time spent. ZnO NPs-exposed A549 cells showed an unusual pattern of actin and tubulin distribution which might trigger mitotic aberrations leading to genomic instability. Conclusions ZnO NPs toxicity can be determined not only by the intrinsic NPs characteristics, but also by the external conditions like the experimental setting, and this could account for discrepant data from different assays. ECIS has the potential to recapitulate the needs required in the evaluation of nanomaterials by contributing to the reliability of cytotoxicity tests. Moreover, it can overcome some false results and discrepancies in the results obtained by endpoint measurements. Finally, we strongly recommend the comparison of cytotoxicity tests (ECIS, MTT, Trypan Blue, Cloning efficiency) with the ultrastructural cell pathology studies. Graphic Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01033-w.
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Affiliation(s)
- Giuseppina Bozzuto
- National Centre for Drug Research and Evaluation, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Giuseppe D'Avenio
- National Centre for Innovative Technologies in Public Health, Istituto Superiore di Sanità, Rome, Italy
| | - Maria Condello
- National Centre for Drug Research and Evaluation, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy
| | - Simona Sennato
- CNR-ISC Sede Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Ezio Battaglione
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Familiari
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza University of Rome, Rome, Italy
| | - Agnese Molinari
- National Centre for Drug Research and Evaluation, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161, Rome, Italy.
| | - Mauro Grigioni
- National Centre for Innovative Technologies in Public Health, Istituto Superiore di Sanità, Rome, Italy
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18
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Babazadeh S, Bisauriya R, Carbone M, Roselli L, Cecchetti D, Bauer EM, Sennato S, Prosposito P, Pizzoferrato R. Colorimetric Detection of Chromium(VI) Ions in Water Using Unfolded-Fullerene Carbon Nanoparticles. Sensors (Basel) 2021; 21:6353. [PMID: 34640679 PMCID: PMC8512488 DOI: 10.3390/s21196353] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 12/05/2022]
Abstract
Water pollution caused by hexavalent chromium (Cr(VI)) ions represents a serious hazard for human health due to the high systemic toxicity and carcinogenic nature of this metal species. The optical sensing of Cr(VI) through specifically engineered nanomaterials has recently emerged as a versatile strategy for the application to easy-to-use and cheap monitoring devices. In this study, a one-pot oxidative method was developed for the cage opening of C60 fullerene and the synthesis of stable suspensions of N-doped carbon dots in water-THF solutions (N-CDs-W-THF). The N-CDs-W-THF selectively showed variations of optical absorbance in the presence of Cr(VI) ions in water through the arising of a distinct absorption band peaking at 550 nm, i.e., in the transparency region of pristine material. Absorbance increased linearly, with the ion concentration in the range 1-100 µM, thus enabling visual and ratiometric determination with a limit of detection (LOD) of 300 nM. Selectivity and possible interference effects were tested over the 11 other most common heavy metal ions. The sensing process occurred without the need for any other reactant or treatment at neutral pH and within 1 min after the addition of chromium ions, both in deionized and in real water samples.
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Affiliation(s)
- Saeedeh Babazadeh
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
- Department of Mechanical Engineering of Biosystems, Agriculture Faculty, Urmia University, Urmia 5756151818, Iran
| | - Ramanand Bisauriya
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Ludovica Roselli
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Elvira Maria Bauer
- Institute of Structure of Matter (ISM), Italian National Research Council (CNR), 00015 Rome, Italy
| | - Simona Sennato
- Institute for Complex Systems (ISC), Italian National Research Council (CNR) and Physics Department, Sapienza University of Rome, 00185 Rome, Italy
| | - Paolo Prosposito
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Roberto Pizzoferrato
- Department of Industrial Engineering, University of Rome Tor Vergata, 00133 Rome, Italy
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19
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Sciolla F, Truzzolillo D, Chauveau E, Trabalzini S, Di Marzio L, Carafa M, Marianecci C, Sarra A, Bordi F, Sennato S. Influence of drug/lipid interaction on the entrapment efficiency of isoniazid in liposomes for antitubercular therapy: a multi-faced investigation. Colloids Surf B Biointerfaces 2021; 208:112054. [PMID: 34454365 DOI: 10.1016/j.colsurfb.2021.112054] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/16/2021] [Accepted: 08/16/2021] [Indexed: 10/20/2022]
Abstract
Isoniazid (INH) is one of the primary drugs used in tuberculosis treatment and its encapsulation in liposomal vesicles can both improve its therapeutic index and minimize toxicity. Here we consider mixtures of hydrogenated soy phosphatidylcholine-phosphatidylglycerol (HSPC-DPPG) to get novel biocompatible liposomes for INH delivery. We determined INH encapsulation efficiency by coupling for the first time UV and Laser Transmission Spectroscopy and we showed that HSPC-DPPG liposomes can load more INH than expected from simple geometrical arguments, thus suggesting the presence of drug-lipid association. To focus on this aspect, which has never been explored in liposomal formulations, we employed several complementary techniques, such as dynamic and static light scattering, calorimetry and surface pressure measurements on lipid monolayers. We find that INH-lipid interaction increases the entrapment capability of liposomes due to INH adsorption. Moreover, the preferential INH-HSPC dipole-dipole interaction promotes the modification of lipid ordering, favoring the formation of HSPC-richer domains in excess of DPPG. Our findings highlight how investigating the fundamental aspects of drug-lipid interactions is of paramount importance for the optimal design of liposomal nanocarriers.
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Affiliation(s)
| | - Domenico Truzzolillo
- Laboratoire Charles Coulomb (L2C) - UMR 5221, Universitè de Montpellier et CNRS, Place E. Bataillon, Campus Triolet, Batiment 11, cc 0026, 34095 Montpellier Cedex 05, France.
| | - Edouard Chauveau
- Laboratoire Charles Coulomb (L2C) - UMR 5221, Universitè de Montpellier et CNRS, Place E. Bataillon, Campus Triolet, Batiment 11, cc 0026, 34095 Montpellier Cedex 05, France
| | - Silvia Trabalzini
- Dipartimento di Chimica e Tecnologie farmaceutiche, Università di Roma, Piazzale A. Moro 5, I-00185 Rome, Italy
| | - Luisa Di Marzio
- Dipartimento di Farmacia, Università G.d'Annunzio, Via dei Vestini, 66100 Chieti, Italy
| | - Maria Carafa
- Dipartimento di Chimica e Tecnologie farmaceutiche, Università di Roma, Piazzale A. Moro 5, I-00185 Rome, Italy
| | - Carlotta Marianecci
- Dipartimento di Chimica e Tecnologie farmaceutiche, Università di Roma, Piazzale A. Moro 5, I-00185 Rome, Italy
| | - Angelo Sarra
- CNR-ISC Sede Sapienza, Piazzale A. Moro 2, I-00185 Rome, Italy
| | - Federico Bordi
- CNR-ISC Sede Sapienza, Piazzale A. Moro 2, I-00185 Rome, Italy; Dipartimento di Fisica, La Sapienza Università di Roma, Piazzale A. Moro 2, I-00185 Rome, Italy
| | - Simona Sennato
- CNR-ISC Sede Sapienza, Piazzale A. Moro 2, I-00185 Rome, Italy; Dipartimento di Fisica, La Sapienza Università di Roma, Piazzale A. Moro 2, I-00185 Rome, Italy.
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20
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Rinaldi F, Hanieh PN, Sennato S, De Santis F, Forte J, Fraziano M, Casciardi S, Marianecci C, Bordi F, Carafa M. Rifampicin-Liposomes for Mycobacterium abscessus Infection Treatment: Intracellular Uptake and Antibacterial Activity Evaluation. Pharmaceutics 2021; 13:1070. [PMID: 34371761 PMCID: PMC8309174 DOI: 10.3390/pharmaceutics13071070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/31/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 11/17/2022] Open
Abstract
Treatment of pulmonary infections caused by Mycobacterium abscessus are extremely difficult to treat, as this species is naturally resistant to many common antibiotics. Liposomes are vesicular nanocarriers suitable for hydrophilic and lipophilic drug loading, able to deliver drugs to the target site, and successfully used in different pharmaceutical applications. Moreover, liposomes are biocompatible, biodegradable and nontoxic vesicles and nebulized liposomes are efficient in targeting antibacterial agents to macrophages. The present aim was to formulate rifampicin-loaded liposomes (RIF-Lipo) for lung delivery, in order to increase the local concentration of the antibiotic. Unilamellar liposomal vesicles composed of anionic DPPG mixed with HSPC for rifampicin delivery were designed, prepared, and characterized. Samples were prepared by using the thin-film hydration method. RIF-Lipo and unloaded liposomes were characterized in terms of size, ζ-potential, bilayer features, stability and in different biological media. Rifampicin's entrapment efficiency and release were also evaluated. Finally, biological activity of RIF-loaded liposomes in Mycobacterium abscessus-infected macrophages was investigated. The results show that RIF-lipo induce a significantly better reduction of intracellular Mycobacterium abscessus viability than the treatment with free drug. Liposome formulation of rifampicin may represent a valuable strategy to enhance the biological activity of the drug against intracellular mycobacteria.
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Affiliation(s)
- Federica Rinaldi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma-Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.R.); (P.N.H.); (J.F.); (M.C.)
| | - Patrizia Nadia Hanieh
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma-Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.R.); (P.N.H.); (J.F.); (M.C.)
| | - Simona Sennato
- Istituto dei Sistemi Complessi (ISC)-CNR, sede “Sapienza” and Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy;
| | - Federica De Santis
- Dipartimento di Biologia, Università di Roma “Tor Vergata” Via della Ricerca Scientifica, 00133 Rome, Italy; (F.D.S.); (M.F.)
| | - Jacopo Forte
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma-Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.R.); (P.N.H.); (J.F.); (M.C.)
| | - Maurizio Fraziano
- Dipartimento di Biologia, Università di Roma “Tor Vergata” Via della Ricerca Scientifica, 00133 Rome, Italy; (F.D.S.); (M.F.)
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL), Monteporzio Catone, 00144 Rome, Italy;
| | - Carlotta Marianecci
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma-Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.R.); (P.N.H.); (J.F.); (M.C.)
| | - Federico Bordi
- Istituto dei Sistemi Complessi (ISC)-CNR, sede “Sapienza” and Dipartimento di Fisica, Sapienza Università di Roma, 00185 Rome, Italy;
| | - Maria Carafa
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma-Piazzale Aldo Moro 5, 00185 Rome, Italy; (F.R.); (P.N.H.); (J.F.); (M.C.)
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21
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Bauer EM, Cecchetti D, Guerriero E, Nisticò S, Germinario G, Sennato S, Gontrani L, Tagliatesta P, Carbone M. Laser vs. thermal treatments of green pigment PG36: coincidence and toxicity of processes. Arch Toxicol 2021; 95:2367-2383. [PMID: 33948695 PMCID: PMC8241676 DOI: 10.1007/s00204-021-03052-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 04/15/2021] [Indexed: 11/25/2022]
Abstract
Comparative laser and thermal treatments were carried out on PG36, a green phthalocyanine-based pigment, permitted in European countries where legislation on tattoo composition was issued. Prior to the treatments, PG36 was characterized by SEM imaging, EDX, IR and UV-Vis spectroscopies, revealing an excess of Si and C and O as compared to the pure halogenated Cu-phthalocyanine. Laser treatments were carried out with a Nd:YAG device applied to H2O and propan-2-ol dispersions. Pyrolysis and calcinations were carried out in air or under N2 flow. The outcome of the different procedures was analyzed by UV-Vis spectroscopy, GC-mass spectrometry, X-ray diffraction of the solid residues, SEM microscopy and dynamic light scattering. The comparative analysis indicated the production of different fragment compounds depending on the treatment, (pyrolysis or laser), and, to some extent, to the solvent of the dispersion, with pyrolysis generating a larger number of hazardous compounds. Hydrocarbons and cyclic siloxanes present as additives in PG36 were stable or degraded depending on the treatment. The morphology of the products is also treatment-dependent with nanoparticles < 20 nm and fibers being produced upon laser treatments only. Based on the experimental findings, the equivalence of laser and thermal treatments is evaluated.
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Affiliation(s)
- Elvira Maria Bauer
- Italian National Research Council, Institute of Structure of Matter (CNR-ISM), Via Salaria km 29.3, 00015, Monterotondo, RM, Italy
| | - Daniele Cecchetti
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Ettore Guerriero
- Italian National Research Council, Institute of Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29.3, 00015, Monterotondo, RM, Italy
| | - Steven Nisticò
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - Giulia Germinario
- Department of Pure and Applied Science, University of Urbino, Piazza Rinascimento 6, 61029, Urbino, Italy
| | - Simona Sennato
- Institute of Complex Systems, National Research Council (CNR-ISC), Sapienza Unit, and Physics Department, Sapienza University, P.le A. Moro 5, 00185, Rome, Italy
| | - Lorenzo Gontrani
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 2, 00185, Rome, Italy
| | - Pietro Tagliatesta
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133, Rome, Italy.
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22
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Aiello S, Pagano L, Ceccacci F, Simonis B, Sennato S, Bugli F, Martini C, Torelli R, Sanguinetti M, Ciogli A, Bombelli C, Mancini G. Mannosyl, glucosyl or galactosyl liposomes to improve resveratrol efficacy against Methicillin Resistant Staphylococcus aureus biofilm. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126321] [Citation(s) in RCA: 6] [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: 12/11/2022]
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23
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Piccirilli F, Tardani F, D’Arco A, Birarda G, Vaccari L, Sennato S, Casciardi S, Lupi S. Infrared Nanospectroscopy Reveals DNA Structural Modifications upon Immobilization onto Clay Nanotubes. Nanomaterials (Basel) 2021; 11:1103. [PMID: 33923331 PMCID: PMC8147086 DOI: 10.3390/nano11051103] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/17/2021] [Accepted: 04/20/2021] [Indexed: 12/22/2022]
Abstract
The growing demand for innovative means in biomedical, therapeutic and diagnostic sciences has led to the development of nanomedicine. In this context, naturally occurring tubular nanostructures composed of rolled sheets of alumino-silicates, known as halloysite nanotubes, have found wide application. Halloysite nanotubes indeed have surface properties that favor the selective loading of biomolecules. Here, we present the first, to our knowledge, structural study of DNA-decorated halloysite nanotubes, carried out with nanometric spatially-resolved infrared spectroscopy. Single nanotube absorption measurements indicate a partial covering of halloysite by DNA molecules, which show significant structural modifications taking place upon loading. The present study highlights the constraints for the use of nanostructured clays as DNA carriers and demonstrates the power of super-resolved infrared spectroscopy as an effective and versatile tool for the evaluation of immobilization processes in the context of drug delivery and gene transfer.
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Affiliation(s)
| | - Franco Tardani
- Istituto dei Sistemi Complessi (ISC)-CNR, UOS Roma Sapienza, 00185 Roma, Italy; (F.T.); (S.S.)
| | - Annalisa D’Arco
- Dipartimento di Fisica, “La Sapienza” Universitá di Roma, 00185 Roma, Italy;
- National Institute of Nuclear Physics Section Rome, P.le A. Moro 2, 00185 Roma, Italy
| | - Giovanni Birarda
- Elettra Sincrotrone Trieste, 34149 Trieste, Italy; (G.B.); (L.V.)
| | - Lisa Vaccari
- Elettra Sincrotrone Trieste, 34149 Trieste, Italy; (G.B.); (L.V.)
| | - Simona Sennato
- Istituto dei Sistemi Complessi (ISC)-CNR, UOS Roma Sapienza, 00185 Roma, Italy; (F.T.); (S.S.)
- Dipartimento di Fisica, “La Sapienza” Universitá di Roma, 00185 Roma, Italy;
| | - Stefano Casciardi
- Dipartimento di Medicina, Epidemiologia, Igiene del Lavoro e Ambientale, Istituto Nazionale per l’Assicurazione Contro gli Infortuni sul Lavoro, 00100 Roma, Italy;
| | - Stefano Lupi
- Istituto Officina dei Materiali CNR, 34149 Trieste, Italy;
- Dipartimento di Fisica, “La Sapienza” Universitá di Roma, 00185 Roma, Italy;
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24
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Sennato S, Chauveau E, Casciardi S, Bordi F, Truzzolillo D. The Double-Faced Electrostatic Behavior of PNIPAm Microgels. Polymers (Basel) 2021; 13:1153. [PMID: 33916554 PMCID: PMC8038440 DOI: 10.3390/polym13071153] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 03/16/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 01/29/2023] Open
Abstract
PNIPAm microgels synthesized via free radical polymerization (FRP) are often considered as neutral colloids in aqueous media, although it is well known, since the pioneering works of Pelton and coworkers, that the vanishing electrophoretic mobility characterizing swollen microgels largely increases above the lower critical solution temperature (LCST) of PNIPAm, at which microgels partially collapse. The presence of an electric charge has been attributed to the ionic initiators that are employed when FRP is performed in water and that stay anchored to microgel particles. Combining dynamic light scattering (DLS), electrophoresis, transmission electron microscopy (TEM) and atomic force microscopy (AFM) experiments, we show that collapsed ionic PNIPAm microgels undergo large mobility reversal and reentrant condensation when they are co-suspended with oppositely charged polyelectrolytes (PE) or nanoparticles (NP), while their stability remains unaffected by PE or NP addition at lower temperatures, where microgels are swollen and their charge density is low. Our results highlight a somehow double-faced electrostatic behavior of PNIPAm microgels due to their tunable charge density: they behave as quasi-neutral colloids at temperature below LCST, while they strongly interact with oppositely charged species when they are in their collapsed state. The very similar phenomenology encountered when microgels are surrounded by polylysine chains and silica nanoparticles points to the general character of this twofold behavior of PNIPAm-based colloids in water.
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Affiliation(s)
- Simona Sennato
- CNR-ISC Sede Sapienza and Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, 00185 Rome, Italy;
| | - Edouard Chauveau
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, F-34095 Montpellier, France;
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL), 00078 Monte Porzio Catone (Rome), Italy;
| | - Federico Bordi
- CNR-ISC Sede Sapienza and Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro 2, 00185 Rome, Italy;
| | - Domenico Truzzolillo
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, F-34095 Montpellier, France;
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25
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Ceccacci F, Sennato S, Rossi E, Proroga R, Sarti S, Diociaiuti M, Casciardi S, Mussi V, Ciogli A, Bordi F, Mancini G, Bombelli C. Synthesis and Characterization of Mitochondria-Targeted Triphenylphosphonium Bolaamphiphiles. Methods Mol Biol 2021; 2275:27-47. [PMID: 34118030 DOI: 10.1007/978-1-0716-1262-0_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this chapter we describe: (1) the procedure for the synthesis of four single chain bolaamphiphiles, displaying chains of 12, 16, 20 and 30 methylene units and triphenylphosphonium moieties as headgroups (TPP1-TPP4); (2) the methods used to characterize TPP1-TPP4 spontaneous aggregation in aqueous solution. We illustrate the determination of Krafft point and cac by conductivity measurements and the procedures used to investigate dimensions, morphology, and stability by dynamic and dielectrophoretic laser light scattering, dialysis, transmission electron microscopy, and Raman spectroscopy measurements.
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Affiliation(s)
- Francesca Ceccacci
- CNR-ISB, Sede Secondaria di Roma-Meccanismi di Reazione c/o Department of Chemistry, Sapienza University, Roma, Italy
| | - Simona Sennato
- CNR-ISC-UOS Sapienza c/o Physics Department, Sapienza University, Roma, Italy
| | - Edoardo Rossi
- Department of Chemistry, Sapienza University, Roma, Italy
| | | | - Stefano Sarti
- Physics Department, Sapienza University, Roma, Italy
| | - Marco Diociaiuti
- Centro Nazionale Malattie Rare, Istituto Superiore di Sanità, Roma, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL), Rome, Italy
| | - Valentina Mussi
- CNR-IMM Institute of Microelectronics and Microsystems, Roma, Italy
| | - Alessia Ciogli
- Department of Chemistry and Technology of Drug, Sapienza University, Roma, Italy
| | | | | | - Cecilia Bombelli
- CNR-ISB, Sede Secondaria di Roma-Meccanismi di Reazione c/o Department of Chemistry, Sapienza University, Roma, Italy.
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26
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Tardani F, Casciardi S, Ruzicka B, Sennato S. Salt enhanced sedimentation of halloysite nanotubes for precise determination of DNA adsorption isotherm. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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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27
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28
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Tardani F, Sarti S, Sennato S, Leo M, Filetici P, Casciardi S, Schiavi PG, Bordi F. Experimental Evidence of Single-Stranded DNA Adsorption on Multiwalled Carbon Nanotubes. J Phys Chem B 2020; 124:2514-2525. [PMID: 32134663 DOI: 10.1021/acs.jpcb.0c00882] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Noncovalent DNA functionalization is one of the most used routes for the easy dispersion of carbon nanotubes (CNTs) yielding DNA-CNTs complexes with promising applications. Definition of the structure of adsorbed DNA is crucial, but the organization of polymer at the carbon interface is far from being understood. In comparison to single-walled nanotubes, not much effort has been devoted to assessing the structure of the adsorbed DNA on multiwalled carbon nanotubes (MWCNTs), where their metallic nature, large size, and polydispersity represent serious obstacles for both experimental and theoretical studies. As a contribution to fill this lack in these aspects, we investigated DNA-MWCNT complexes by dielectric spectroscopy (DS) which is sensitive to even small changes in the charge distribution at charged interfaces and was largely employed in studying the electric and conformational properties of polyelectrolytes, such as DNA, in aqueous solutions and at interfaces. The dielectric relaxation in the MHz range is the signature of DNA adsorption on CNTs and sheds light on its conformational properties. A detailed analysis of the conductivity of the DNA-MWCNT suspensions unequivocally proves that DNA is adsorbed in a single-stranded conformation while excess DNA reassociates without interfering with the stability of the complexes.
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Affiliation(s)
- Franco Tardani
- Istituto dei Sistemi Complessi (ISC) - CNR, UOS Roma Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | | | - Simona Sennato
- Istituto dei Sistemi Complessi (ISC) - CNR, UOS Roma Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
| | | | | | - Stefano Casciardi
- Dipartimento di Medicina, Epidemiologi, Igiene del Lavoro e Ambientale, Istituto Nazionale per l'Assicurazione contro gli Infortuni sul Lavoro, Via Fontana Candida 1, 00078 Monte Porzio Catone RM, Italy
| | | | - Federico Bordi
- Istituto dei Sistemi Complessi (ISC) - CNR, UOS Roma Sapienza, Piazzale A. Moro 2, 00185 Roma, Italy
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29
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Sarra A, Celluzzi A, Bruno SP, Ricci C, Sennato S, Ortore MG, Casciardi S, Del Chierico F, Postorino P, Bordi F, Masotti A. Biophysical Characterization of Membrane Phase Transition Profiles for the Discrimination of Outer Membrane Vesicles (OMVs) From Escherichia coli Grown at Different Temperatures. Front Microbiol 2020; 11:290. [PMID: 32174900 PMCID: PMC7056839 DOI: 10.3389/fmicb.2020.00290] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/10/2020] [Indexed: 12/11/2022] Open
Abstract
Dynamic Light Scattering (DLS), Small Angle X-ray Scattering (SAXS) and Transmission Electron Microscopy (TEM) are physical techniques widely employed to characterize the morphology and the structure of vesicles such as liposomes or human extracellular vesicles (exosomes). Bacterial extracellular vesicles are similar in size to human exosomes, although their function and membrane properties have not been elucidated in such detail as in the case of exosomes. Here, we applied the above cited techniques, in synergy with the thermotropic characterization of the vesicles lipid membrane using a turbidimetric technique to the study of vesicles produced by Gram-negative bacteria (Outer Membrane Vesicles, OMVs) grown at different temperatures. This study demonstrated that our combined approach is useful to discriminate vesicles of different origin or coming from bacteria cultured under different experimental conditions. We envisage that in a near future the techniques employed in our work will be further implemented to discriminate complex mixtures of bacterial vesicles, thus showing great promises for biomedical or diagnostic applications.
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Affiliation(s)
- Angelo Sarra
- Department of Science, University of Roma Tre, Rome, Italy
| | - Antonella Celluzzi
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Caterina Ricci
- Department of Life and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Simona Sennato
- CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Maria Grazia Ortore
- Department of Life and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Stefano Casciardi
- Department of Occupational & Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance Against Accidents at Work (INAIL), Monte Porzio Catone, Italy
| | | | - Paolo Postorino
- CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Federico Bordi
- CNR-ISC UOS Sapienza and Department of Physics, Sapienza University of Rome, Rome, Italy
| | - Andrea Masotti
- Research Laboratories, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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30
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Zikeli F, Vinciguerra V, Sennato S, Scarascia Mugnozza G, Romagnoli M. Preparation of Lignin Nanoparticles with Entrapped Essential Oil as a Bio-Based Biocide Delivery System. ACS Omega 2020; 5:358-368. [PMID: 31956783 PMCID: PMC6964284 DOI: 10.1021/acsomega.9b02793] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/02/2019] [Indexed: 05/03/2023]
Abstract
Lignin isolated from beech sawdust was used for the preparation of lignin nanoparticles (LNPs) with entrapped essential oil (EO) from cinnamon bark (Cinnamomum zeylanicum Blume), common thyme (Thymus vulgaris L.), and wild thyme (Thymus serpyllum L.) using a fast antisolvent method. Analysis of EO-loaded LNPs by pyrolysis-gas chromatography-mass spectrometry and Fourier transform infrared spectroscopy confirmed molecular interaction between EOs and LNPs. Quantification of EO incorporation into the LNPs and their in vitro release profiles were assessed by reversed phase high-performance liquid chromatography. Utilized EOs were, to different extents, successfully entrapped inside LNPs, which were attributed to extensive π-stacking between aromatic compounds in EOs like cinnamaldehyde, thymol, and carvacrol on one side and aromatic lignin units on the other side. In vitro release of common thyme and wild thyme EOs from EO-loaded LNPs was strongly delayed compared to the use of pure oil, giving a promising outlook for the development of new bio-based biocide delivery systems for wood preservation.
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Affiliation(s)
- Florian Zikeli
- Department
for Innovation in Biological Systems, Food and Forestry, University of Tuscia, Via S. Camillo de Lellis, snc, 01100 Viterbo, Italy
- E-mail: (F.Z.)
| | - Vittorio Vinciguerra
- Department
for Innovation in Biological Systems, Food and Forestry, University of Tuscia, Via S. Camillo de Lellis, snc, 01100 Viterbo, Italy
| | - Simona Sennato
- Istituto
dei Sistemi Complessi, CNR-INFM SOFT and
Universitá di Roma ″La Sapienza″ Roma, Piazzale Aldo Moro, 2, 00185 Roma, Italy
| | - Giuseppe Scarascia Mugnozza
- Department
for Innovation in Biological Systems, Food and Forestry, University of Tuscia, Via S. Camillo de Lellis, snc, 01100 Viterbo, Italy
- E-mail: (G.S.M.)
| | - Manuela Romagnoli
- Department
for Innovation in Biological Systems, Food and Forestry, University of Tuscia, Via S. Camillo de Lellis, snc, 01100 Viterbo, Italy
- E-mail: (M.R.)
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Paolini A, Battafarano G, D'Oria V, Mura F, Sennato S, Mussi V, Risoluti R, Materazzi S, Del Fattore A, Masotti A. A 3D-Printed Multi-Chamber Device Allows Culturing Cells On Buckypapers Coated With PAMAM Dendrimer And Obtain Innovative Materials For Biomedical Applications. Int J Nanomedicine 2019; 14:9295-9306. [PMID: 31819431 PMCID: PMC6890209 DOI: 10.2147/ijn.s224819] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 07/26/2019] [Accepted: 10/08/2019] [Indexed: 01/15/2023] Open
Abstract
Background The advent of 3D printing technology allowed the realization of custom devices that can be used not only in the everyday life but also in the nanotechnology and biomedical fields. In nanotechnology, the use of bi-dimensional nanostructures based on carbon nanotubes, generally referred as buckypapers, have received considerable attention for their versatility and potential application in many biomedical fields. Unfortunately, buckypapers are extremely hydrophobic and cannot be used in aqueous media to culture cells. Methods A polymeric device able to accommodate buckypapers and facilitate cell growth was fabricated by using 3D printing technology. We imparted hydrophilicity to buckypapers by coating them with polyamidoamine (PAMAM) dendrimers. Results We found that by using novel techniques such as polymer coating the buckypaper hydrophilicity increased, whereas the use of 3D printing technology allowed us to obtain custom devices that have been used to culture cells on buckypapers for many days. We characterized in details the morphology of these structures and studied for the first time the kinetic of cell proliferation. We found that these scaffolds, if properly functionalized, are suitable materials to grow cells for long time and potentially employable in the biomedical field. Conclusion Although these materials are cytotoxic under certain circumstances, we have found a suitable coating and specific experimental conditions that encourage using buckypapers as novel scaffolds for cell growth and for potential applications in tissue repair and regeneration.
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Affiliation(s)
- Alessandro Paolini
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories, Rome 00146, Italy
| | - Giulia Battafarano
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories, Rome 00146, Italy
| | - Valentina D'Oria
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories, Rome 00146, Italy
| | - Francesco Mura
- Center for Nanotechnology for Engineering (CNIS), Sapienza University of Rome, Rome 00185, Italy
| | - Simona Sennato
- CNR-ISC UOS Sapienza and Physics Department, Sapienza University of Rome, Rome 00185, Italy
| | - Valentina Mussi
- National Research Council, Institute for Microelectronics and Microsystems IMM-CNR, Roma 00133, Italy
| | - Roberta Risoluti
- Department of Chemistry, Sapienza University of Rome, Rome 00185, Italy
| | - Stefano Materazzi
- Department of Chemistry, Sapienza University of Rome, Rome 00185, Italy
| | - Andrea Del Fattore
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories, Rome 00146, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories, Rome 00146, Italy
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Tedeschi D, Blundo E, Felici M, Pettinari G, Liu B, Yildrim T, Petroni E, Zhang C, Zhu Y, Sennato S, Lu Y, Polimeni A. Controlled Micro/Nanodome Formation in Proton-Irradiated Bulk Transition-Metal Dichalcogenides. Adv Mater 2019; 31:e1903795. [PMID: 31544287 DOI: 10.1002/adma.201903795] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/24/2019] [Indexed: 05/16/2023]
Abstract
At the few-atom-thick limit, transition-metal dichalcogenides (TMDs) exhibit strongly interconnected structural and optoelectronic properties. The possibility to tailor the latter by controlling the former is expected to have a great impact on applied and fundamental research. As shown here, proton irradiation deeply affects the surface morphology of bulk TMD crystals. Protons penetrate the top layer, resulting in the production and progressive accumulation of molecular hydrogen in the first interlayer region. This leads to the blistering of one-monolayer thick domes, which stud the crystal surface and locally turn the dark bulk material into an efficient light emitter. The domes are stable (>2-year lifetime) and robust, and host strong, complex strain fields. Lithographic techniques provide a means to engineer the formation process so that the domes can be produced with well-ordered positions and sizes tunable from the nanometer to the micrometer scale, with important prospects for so far unattainable applications.
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Affiliation(s)
- Davide Tedeschi
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Roma, Italy
| | - Elena Blundo
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Roma, Italy
| | - Marco Felici
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Roma, Italy
| | - Giorgio Pettinari
- Institute for Photonics and Nanotechnologies, National Research Council, 00156, Roma, Italy
| | - Boqing Liu
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT2601, Australia
| | - Tanju Yildrim
- College of Chemistry and Environmental Engineering, Shenzhen University, P. R. China
| | - Elisa Petroni
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Roma, Italy
| | - Chris Zhang
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT2601, Australia
| | - Yi Zhu
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT2601, Australia
| | - Simona Sennato
- Institute for Complex Systems, National Research Council, 00185, Roma, Italy
| | - Yuerui Lu
- Research School of Electrical, Energy and Materials Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT2601, Australia
- ARC Centre of Excellence in Future Low-Energy, Electronics Technologies (FLEET), ANU node, Canberra, ACT2601, Australia
| | - Antonio Polimeni
- Dipartimento di Fisica, Sapienza Università di Roma, 00185, Roma, Italy
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Cautela J, Severoni E, Redondo-Gómez C, di Gregorio MC, Del Giudice A, Sennato S, Angelini R, D'Abramo M, Schillén K, Galantini L. C-12 vs C-3 substituted bile salts: An example of the effects of substituent position and orientation on the self-assembly of steroid surfactant isomers. Colloids Surf B Biointerfaces 2019; 185:110556. [PMID: 31704607 DOI: 10.1016/j.colsurfb.2019.110556] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 08/19/2019] [Revised: 09/08/2019] [Accepted: 10/02/2019] [Indexed: 12/31/2022]
Abstract
Biomolecule derivatives are transversally used in nanotechnology. Deciphering their aggregation behavior is a crucial issue for the rational design of functional materials. To this end, it is necessary to build libraries of selectively functionalized analogues and infer general rules. In this work we enrich the highly applicative oriented collection of steroid derivatives, by reporting a rare example of C-12 selectively modified bile salt. While nature often exploits such position to encode functions, it is unusual and not trivial to prepare similar analogues in the laboratory. The introduction of a tert-butyl phenyl residue at C-12 provided a molecule with a self-assembly that remarkably switched from rigid pole-like structures to twisted ribbons at a biologically relevant critical temperature (∼25 °C). The system was characterized by microscopy and spectroscopy techniques and compared with the C-3 functionalized analogue. The twisted ribbons generate samples with a gel texture and a viscoelastic response. The parallel analysis of the two systems suggested that the observed thermoresponsive self-assemblies occur at similar critical temperatures and are probably dictated by the nature of the substituent, but involve aggregates with different structures depending on position and orientation of the substituent. This study highlights the self-assembly properties of two appealing thermoresponsive systems. Moreover, it adds fundamental insights hereto missing in the investigations of the relation between self-assembly and structure of synthetic steroids, which are valuable for the rational design of steroidal amphiphiles.
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Affiliation(s)
- Jacopo Cautela
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Emilia Severoni
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Carlos Redondo-Gómez
- Escuela de Química, Centro de Investigación en Electroquímica y Energía Química (CELEQ), Universidad de Costa Rica, San José, Costa Rica
| | | | | | - Simona Sennato
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Roberta Angelini
- CNR-ISC Sede Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Marco D'Abramo
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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Nigro V, Angelini R, Rosi B, Bertoldo M, Buratti E, Casciardi S, Sennato S, Ruzicka B. Corrigendum to "Study of network composition in interpenetrating polymer networks of poly(N isopropylacrylamice) microgels: The role of poly(acrylic acid)" [J. Colloid Interface Sci. 545 (2019) 210-219]. J Colloid Interface Sci 2019; 552:802. [PMID: 31160033 DOI: 10.1016/j.jcis.2019.05.069] [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: 10/26/2022]
Affiliation(s)
- Valentina Nigro
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
| | - Roberta Angelini
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
| | - Benedetta Rosi
- Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Monica Bertoldo
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, Via G.Moruzzi 1, I-56124 Pisa, Italy
| | - Elena Buratti
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, Via G.Moruzzi 1, I-56124 Pisa, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Via Fontana Candida 1, Monte Porzio Catone, 00040 Rome, Italy
| | - Simona Sennato
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Barbara Ruzicka
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
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35
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Aquilano K, Ceci V, Gismondi A, De Stefano S, Iacovelli F, Faraonio R, Di Marco G, Poerio N, Minutolo A, Minopoli G, Marcone A, Fraziano M, Tortolici F, Sennato S, Casciardi S, Potestà M, Bernardini R, Mattei M, Falconi M, Montesano C, Rufini S, Canini A, Lettieri-Barbato D. Adipocyte metabolism is improved by TNF receptor-targeting small RNAs identified from dried nuts. Commun Biol 2019; 2:317. [PMID: 31453381 PMCID: PMC6704100 DOI: 10.1038/s42003-019-0563-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 07/30/2019] [Indexed: 01/22/2023] Open
Abstract
There is a growing interest in therapeutically targeting the inflammatory response that underlies age-related chronic diseases including obesity and type 2 diabetes. Through integrative small RNA sequencing, we show the presence of conserved plant miR159a and miR156c in dried nuts having high complementarity with the mammalian TNF receptor superfamily member 1a (Tnfrsf1a) transcript. We detected both miR159a and miR156c in exosome-like nut nanovesicles (NVs) and demonstrated that such NVs reduce Tnfrsf1a protein and dampen TNF-α signaling pathway in adipocytes. Synthetic single-stranded microRNAs (ss-miRs) modified with 2'-O-methyl group function as miR mimics. In plants, this modification naturally occurs on nearly all small RNAs. 2'-O-methylated ss-miR mimics for miR156c and miR159a decreased Tnfrsf1a protein and inflammatory markers in hypertrophic as well as TNF-α-treated adipocytes and macrophages. miR156c and miR159a mimics effectively suppress inflammation in mice, highlighting a potential role of plant miR-based, single-stranded oligonucleotides in treating inflammatory-associated metabolic diseases.
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Affiliation(s)
- Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Veronica Ceci
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Angelo Gismondi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Susanna De Stefano
- Department of Chemical Sciences and Technologies, University of Rome Tor Vergata, Rome, Italy
| | | | - Raffaella Faraonio
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | | | - Noemi Poerio
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | | | - Giuseppina Minopoli
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Antonia Marcone
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | | | - Flavia Tortolici
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Simona Sennato
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institute for Insurance against Accidents at Work (INAIL) Research, Rome, Italy
| | - Marina Potestà
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Roberta Bernardini
- Interdepartmental Service Center-Station for Anima Technology (STA), University of Rome Tor Vergata, Rome, Italy
| | - Maurizio Mattei
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- Interdepartmental Service Center-Station for Anima Technology (STA), University of Rome Tor Vergata, Rome, Italy
| | - Mattia Falconi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Carla Montesano
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Stefano Rufini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Antonella Canini
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Daniele Lettieri-Barbato
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
- IRCCS Fondazione Santa Lucia, 00143 Rome, Italy
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36
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Travaglini L, di Gregorio MC, Severoni E, D'Annibale A, Sennato S, Tardani F, Giustini M, Gubitosi M, Del Giudice A, Galantini L. Deoxycholic acid and l-Phenylalanine enrich their hydrogel properties when combined in a zwitterionic derivative. J Colloid Interface Sci 2019; 554:453-462. [PMID: 31325679 DOI: 10.1016/j.jcis.2019.07.019] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 01/31/2023]
Abstract
HYPOTHESIS Sodium Deoxycholate (NaDC) and Phenylalanine (Phe) are important biological hydrogelators. NaDC hydrogels form by lowering the pH or by increasing the ionic strength. Phe gels form from saturated solution by thermal induction and slow kinetics. The resulting gels hold great potential in medicine and biology as drug carriers and models for fundamental self-assembly in pathological conditions. Based on this background it was hypothesized that a Phe substituted NaDC could provide a molecule with expanded gelling ability, merging those of the precursors. EXPERIMENTS We coupled both building blocks in a zwitterionic derivative bearing a Phe residue at the C3 carbon of NaDC. The specific zwitterionic structure, the concurrent use of Ca2+ ions for the carboxyl group coordination and the pH control generate conditions for the formation of hydrogels. The hydrogels were analyzed by combining UV and circular dichroism spectroscopies, rheology, small angle X-ray scattering and atomic force microscopy. FINDINGS Hydrogel appearance occurs in conditions that are uncovered in the case of the pure Phe and NaDC: self-standing gels form instantaneously at room temperature, in the 10-12 pH range and down to concentration of 0.17 wt%. Both thixotropic and shake resistant gels can form depending on the derivative concentration. The gels show an uncommon thermal stability in the scanned range of 20-60 °C. The reported system concurrently enriches the hydrogelation properties of two relevant building blocks. We anticipate some potential applications of such gels in materials science where coordination of metal ions can be exploited for templating inorganic nanostructures.
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Affiliation(s)
- Leana Travaglini
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | | | - Emilia Severoni
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Andrea D'Annibale
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Simona Sennato
- CNR-ISC UOS Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy; Department of Physics, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Franco Tardani
- CNR-ISC UOS Sapienza, Sapienza University of Rome, P. le A. Moro 5, 00185 Roma, Italy
| | - Mauro Giustini
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Marta Gubitosi
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Alessandra Del Giudice
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy
| | - Luciano Galantini
- Department of Chemistry, Sapienza University of Rome, P. le A. Moro 5, 00185 Rome, Italy.
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De Santis S, Novelli F, Sciubba F, Casciardi S, Sennato S, Morosetti S, Scipioni A, Masci G. Switchable length nanotubes from a self-assembling pH and thermosensitive linear l,d-peptide-polymer conjugate. J Colloid Interface Sci 2019; 547:256-266. [PMID: 30954769 DOI: 10.1016/j.jcis.2019.03.093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 03/26/2019] [Accepted: 03/28/2019] [Indexed: 01/30/2023]
Abstract
Preparation and characterization of a pH and thermosensitive linear l,d-octapeptide-poly(dimethylamino ethyl methacrylate) ((l-Val-d-Val)4-PDMAEMA) conjugate is reported. The hydrophobic uncharged linear (l-Val-d-Val)4 octapeptide was designed to self-assemble in nanotubes by exploiting the tubular self-assembling properties of linear peptides with regularly alternating enantiomeric sequences. pH and thermosensitive PDMAEMA was obtained by atom transfer radical polymerization (ATRP). The conjugate was prepared by click-chemistry on the solid phase synthetized peptide. Because of the strong interactions between the peptide moieties, long single channel nanotubes (0.2-1.5 μm) are formed also at acidic pH with the fully charged polymer. At 25 °C and basic pH the size of the nanotubes did not change significantly. In basic conditions and temperature above the PDMAEMA lower critical solution temperature (LCST) a significant increase of the length of the nanotubes up to several micrometers is observed. The size is retained for several days after cooling back to room temperature. Sonication significantly reduces the nanotube length (0.2-0.5 μm) forming low polydisperse nanotubes. The elongation of the nanotubes is fully reversible by restoring acidic pH. This is the first example, to our knowledge, of thermosensitive peptide-polymer single channel nanotubes with length that can be varied from hundreds of nanometers to several micrometers.
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Affiliation(s)
- Serena De Santis
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Federica Novelli
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Fabio Sciubba
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Stefano Casciardi
- National Institute for Insurance against Accidents at Work (INAIL Research), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, Rome, Italy
| | - Simona Sennato
- Institute for Complex Systems, National Research Council (ISC-CNR), Dipartimento di Fisica, Sapienza Università di Roma, P.le A. Moro, 2 00185 Rome, Italy
| | - Stefano Morosetti
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Anita Scipioni
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy
| | - Giancarlo Masci
- Dipartimento di Chimica, Sapienza Università di Roma, P.le A. Moro, 5, I-00185 Rome, Italy.
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38
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Nigro V, Angelini R, Rosi B, Bertoldo M, Buratti E, Casciardi S, Sennato S, Ruzicka B. Study of network composition in interpenetrating polymer networks of poly(N isopropylacrylamide) microgels: The role of poly(acrylic acid). J Colloid Interface Sci 2019; 545:210-219. [PMID: 30889412 DOI: 10.1016/j.jcis.2019.03.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 12/07/2018] [Revised: 03/01/2019] [Accepted: 03/02/2019] [Indexed: 12/20/2022]
Abstract
HYPOTHESIS The peculiar swelling behaviour of poly(N-isopropylacrylamide) (PNIPAM)4-based responsive microgels provides the possibility to tune both softness and volume fraction with temperature, making these systems of great interest for technological applications and theoretical implications. Their intriguing phase diagram can be even more complex if poly(acrylic acid) (PAAc)5 is interpenetrated within PNIPAM network to form Interpenetrating Polymer Network (IPN)6 microgels that exhibit an additional pH-sensitivity. The effect of the PAAc/PNIPAM polymeric ratio on both swelling capability and dynamics is still matter of investigation. EXPERIMENTS Here we investigate the role of PAAc in the behaviour of IPN microgels across the volume phase transition through dynamic light scattering (DLS),7 transmission electron microscopy (TEM)8 and electrophoretic measurements as a function of microgel concentration and pH. FINDINGS Our results highlight that aggregation is favored at increasing weight concentration, PAAc content and pH and that a crossover PAAc content CPAAc∗9 exists above which the ionic charges on the microgel become relevant. Moreover we show that the softness of IPN microgels can be tuned ad hoc by changing the PAAc/PNIPAM ratio. These findings provide new insights into the possibility to control experimentally aggregation properties, charge and softness of IPN microgels by varying PAAc content.
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Affiliation(s)
- Valentina Nigro
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
| | - Roberta Angelini
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
| | - Benedetta Rosi
- Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Monica Bertoldo
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, Via G.Moruzzi 1, I-56124 Pisa, Italy
| | - Elena Buratti
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della Ricerca, Via G.Moruzzi 1, I-56124 Pisa, Italy
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Via Fontana Candida 1, Monte Porzio Catone, 00040 Rome, Italy
| | - Simona Sennato
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy
| | - Barbara Ruzicka
- Istituto dei Sistemi Complessi del Consiglio Nazionale delle Ricerche (ISC-CNR), sede Sapienza, Pz.le Aldo Moro 5, I-00185 Roma, Italy; Dipartimento di Fisica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Roma, Italy.
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Caroleo F, Stefanelli M, Magna G, Venanzi M, Paolesse R, Sennato S, Carbone M, Monti D. Kinetic and spectroscopic studies on the chiral self-aggregation of amphiphilic zinc and copper (l)-prolinate-tetraarylporphyrin derivatives in different aqueous media. Org Biomol Chem 2019; 17:1113-1120. [DOI: 10.1039/c8ob02689k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The chiral self-aggregation of (l)-proline porphyrin derivatives depends on both the nature of the media and the coordinated metal ion.
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Affiliation(s)
- Fabrizio Caroleo
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Manuela Stefanelli
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Gabriele Magna
- Department of Electronic Engineering
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Mariano Venanzi
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Roberto Paolesse
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Simona Sennato
- Consiglio Nazionale delle Ricerche (CNR)-Istituto Sistemi Complessi
- and Department of Physics
- University of Rome La Sapienza
- 00185 Rome
- Italy
| | - Marilena Carbone
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
| | - Donato Monti
- Department of Science and Chemical Technologies
- University of Rome Tor Vergata
- I-00133 Rome
- Italy
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40
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Ceccacci F, Sennato S, Rossi E, Proroga R, Sarti S, Diociaiuti M, Casciardi S, Mussi V, Ciogli A, Bordi F, Mancini G, Bombelli C. Aggregation behaviour of triphenylphosphonium bolaamphiphiles. J Colloid Interface Sci 2018; 531:451-462. [DOI: 10.1016/j.jcis.2018.07.067] [Citation(s) in RCA: 2] [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] [Received: 03/01/2018] [Revised: 07/16/2018] [Accepted: 07/17/2018] [Indexed: 12/29/2022]
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41
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di Gregorio MC, Severoni E, Travaglini L, Gubitosi M, Sennato S, Mura F, Redondo-Gómez C, Jover A, Pavel NV, Galantini L. Bile acid derivative-based catanionic mixtures: versatile tools for superficial charge modulation of supramolecular lamellae and nanotubes. Phys Chem Chem Phys 2018; 20:18957-18968. [PMID: 29972162 DOI: 10.1039/c8cp02745e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Self-assembled structures formed by mixtures of cationic and anionic surfactants are interesting tools for applications requiring interactions with charged particles and molecules. Nevertheless, they present instability close to the equimolar composition and poor morphological versatility, which is generally restricted to vesicles and micelles. Against this general trend, we report on bile salt derivative based catanionic mixtures assembling in tubules and lamellae depending on the mixture composition. Electrophoretic mobility measurements prove that the composition also dictates their superficial charge, which can be tuned from negative to positive by increasing the positively charged surfactant fraction in the mixtures. The study of the catanionic aggregates was conducted by means of microscopy and spectroscopy techniques and compared to the self-assembly behaviors of the individual building blocks. This study broadens the so far small array of bile salt derivative catanionic systems, confirming their distinctive behavior in the spectrum of catanionic mixtures.
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42
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Truzzolillo D, Sennato S, Sarti S, Casciardi S, Bazzoni C, Bordi F. Overcharging and reentrant condensation of thermoresponsive ionic microgels. Soft Matter 2018; 14:4110-4125. [PMID: 29664092 PMCID: PMC5968447 DOI: 10.1039/c7sm02357j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We investigated the complexation of thermoresponsive anionic poly(N-isopropylacrylamide) (PNiPAM) microgels and cationic ε-polylysine (ε-PLL) chains. By combining electrophoresis, light scattering, transmission electron microscopy (TEM) and dielectric spectroscopy (DS) we studied the adsorption of ε-PLL onto microgel networks and its effect on the stability of suspensions. We show that the volume phase transition (VPT) of microgels triggers a large polyion adsorption. Two interesting phenomena with unique features occur: a temperature-dependent microgel overcharging and a complex reentrant condensation. The latter may occur at fixed polyion concentration, when temperature is raised above the VPT of microgels, or by increasing the number density of polycations at fixed temperature. TEM and DS measurements unambiguously show that short PLL chains adsorb onto microgels and act as electrostatic glue above the VPT. By performing thermal cycles, we further show that polyion-induced clustering is a quasi-reversible process: within the time of our experiments large clusters form above the VPT and partially re-dissolve as the mixtures are cooled down. Finally we give a proof that the observed phenomenology is purely electrostatic in nature: an increase of the ionic strength gives rise to polyion desorption from the microgel outer shell.
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Affiliation(s)
- Domenico Truzzolillo
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier , 4 F-34095 Montpellier , France .
| | - Simona Sennato
- CNR-ISC UOS Roma, c/o Dipartimento di Fisica, Sapienza Università di Roma , P.le A. Moro 2 , 00185 Roma , Italy
| | - Stefano Sarti
- Dipartimento di Fisica, Sapienza Università di Roma , P.zzle A. Moro 2 , 00185 Roma , Italy .
| | - Stefano Casciardi
- National Institute for Insurance against Accidents at Work (INAIL Research), Department of Occupational and Environmental Medicine, Epidemiology and Hygiene , Roma , Italy
| | - Chiara Bazzoni
- Dipartimento di Fisica, Sapienza Università di Roma , P.zzle A. Moro 2 , 00185 Roma , Italy .
| | - Federico Bordi
- CNR-ISC UOS Roma, c/o Dipartimento di Fisica, Sapienza Università di Roma , P.le A. Moro 2 , 00185 Roma , Italy
- Dipartimento di Fisica, Sapienza Università di Roma , P.zzle A. Moro 2 , 00185 Roma , Italy .
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di Gregorio MC, Gubitosi M, Travaglini L, Pavel NV, Jover A, Meijide F, Vázquez Tato J, Sennato S, Schillén K, Tranchini F, De Santis S, Masci G, Galantini L. Supramolecular assembly of a thermoresponsive steroidal surfactant with an oppositely charged thermoresponsive block copolymer. Phys Chem Chem Phys 2018; 19:1504-1515. [PMID: 27990552 DOI: 10.1039/c6cp05665b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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
Supramolecular rearrangements are crucial in determining the response of stimuli sensitive soft matter systems such as those formed by mixtures of oppositely charged amphiphiles. Here mixtures of this kind were prepared by mixing the cationic block copolymer pAMPTMA30-b-pNIPAAM120 and an anionic surfactant obtained by the modification of the bile salt sodium cholate. As pure components, the two compounds presented a thermoresponsive self-assembly at around 30-35 °C; a micelle formation in the case of the copolymer and a transition from fibers to tubes in the case of the bile salt derivative. When both were present in the same solution they associated into mixed aggregates that showed complex thermoresponsive features. At room temperature, the core of the aggregate was comprised of a supramolecular twisted ribbon of the bile salt derivative. The block copolymers were anchored on the surface of this ribbon through electrostatic interactions between their charged blocks and the oppositely charged heads of the bile salt molecules. The whole structure was stabilized by a corona of the uncharged blocks that protruded into the surrounding solvent. By increasing the temperature to 30-34 °C the mixed aggregates transformed into rods with smooth edges that associated into bundles and clusters, which in turn induced clouding of the solution. Circular dichroism allowed us to follow progressive rearrangements of the supramolecular organization within the complex, occurring in the range of temperature of 20-70 °C.
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Affiliation(s)
- M C di Gregorio
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - M Gubitosi
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - L Travaglini
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - N V Pavel
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - A Jover
- Departamento de Química Física, Facultad de Ciencias, Universidad de Santiago de Compostela, Avda. Alfonso X El Sabio s/n, 27002 Lugo, Spain
| | - F Meijide
- Departamento de Química Física, Facultad de Ciencias, Universidad de Santiago de Compostela, Avda. Alfonso X El Sabio s/n, 27002 Lugo, Spain
| | - J Vázquez Tato
- Departamento de Química Física, Facultad de Ciencias, Universidad de Santiago de Compostela, Avda. Alfonso X El Sabio s/n, 27002 Lugo, Spain
| | - S Sennato
- Department of Physics and CNR-IPCF UOS Roma, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy
| | - K Schillén
- Division of Physical Chemistry, Department of Chemistry, Lund University, SE-221 00 Lund, Sweden
| | - F Tranchini
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - S De Santis
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | | | - L Galantini
- Department of Chemistry, "Sapienza" University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
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Celluzzi A, Paolini A, D'Oria V, Risoluti R, Materazzi S, Pezzullo M, Casciardi S, Sennato S, Bordi F, Masotti A. Biophysical and biological contributions of polyamine-coated carbon nanotubes and bidimensional buckypapers in the delivery of miRNAs to human cells. Int J Nanomedicine 2018. [PMID: 29296082 DOI: 10.2147/ijn.s144155.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Recent findings in nanomedicine have revealed that carbon nanotubes (CNTs) can be used as potential drug carriers, therapeutic agents and diagnostics tools. Moreover, due to their ability to cross cellular membranes, their nanosize dimension, high surface area and relatively good biocompatibility, CNTs have also been employed as a novel gene delivery vector system. In our previous work, we functionalized CNTs with two polyamine polymers, polyethyleneimine (PEI) and polyamidoamine dendrimer (PAMAM). These compounds have low cytotoxicity, ability to conjugate microRNAs (such as miR-503) and, at the same time, transfect efficiently endothelial cells. The parameters contributing to the good efficiency of transfection that we observed were not investigated in detail. In fact, the diameter and length of CNTs are important parameters to be taken into account when evaluating the effects on drug delivery efficiency. In order to investigate the biophysical and biological contributions of polymer-coated CNTs in delivery of miRNAs to human cells, we decided to investigate three different preparations, characterized by different dimensions and aspect ratios. In particular, we took into account very small CNTs, a suspension of CNTs starting from the commercial product and a 2D material based on CNTs (ie, buckypapers [BPs]) to examine the transfection efficiency of a rigid scaffold. In conclusion, we extensively investigated the biophysical and biological contributions of polyamine-coated CNTs and bidimensional BPs in the delivery of miRNAs to human cells, in order to optimize the transfection efficiency of these compounds to be employed as efficient drug delivery vectors in biomedical applications.
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Affiliation(s)
| | | | | | | | | | - Marco Pezzullo
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Monte Porzio Catone
| | - Simona Sennato
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Federico Bordi
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
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45
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Celluzzi A, Paolini A, D'Oria V, Risoluti R, Materazzi S, Pezzullo M, Casciardi S, Sennato S, Bordi F, Masotti A. Biophysical and biological contributions of polyamine-coated carbon nanotubes and bidimensional buckypapers in the delivery of miRNAs to human cells. Int J Nanomedicine 2017; 13:1-18. [PMID: 29296082 PMCID: PMC5739113 DOI: 10.2147/ijn.s144155] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Recent findings in nanomedicine have revealed that carbon nanotubes (CNTs) can be used as potential drug carriers, therapeutic agents and diagnostics tools. Moreover, due to their ability to cross cellular membranes, their nanosize dimension, high surface area and relatively good biocompatibility, CNTs have also been employed as a novel gene delivery vector system. In our previous work, we functionalized CNTs with two polyamine polymers, polyethyleneimine (PEI) and polyamidoamine dendrimer (PAMAM). These compounds have low cytotoxicity, ability to conjugate microRNAs (such as miR-503) and, at the same time, transfect efficiently endothelial cells. The parameters contributing to the good efficiency of transfection that we observed were not investigated in detail. In fact, the diameter and length of CNTs are important parameters to be taken into account when evaluating the effects on drug delivery efficiency. In order to investigate the biophysical and biological contributions of polymer-coated CNTs in delivery of miRNAs to human cells, we decided to investigate three different preparations, characterized by different dimensions and aspect ratios. In particular, we took into account very small CNTs, a suspension of CNTs starting from the commercial product and a 2D material based on CNTs (ie, buckypapers [BPs]) to examine the transfection efficiency of a rigid scaffold. In conclusion, we extensively investigated the biophysical and biological contributions of polyamine-coated CNTs and bidimensional BPs in the delivery of miRNAs to human cells, in order to optimize the transfection efficiency of these compounds to be employed as efficient drug delivery vectors in biomedical applications.
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Affiliation(s)
| | | | | | | | | | - Marco Pezzullo
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
| | - Stefano Casciardi
- Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, National Institution for Insurance Against Accidents at Work (INAIL Research), Monte Porzio Catone
| | - Simona Sennato
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Federico Bordi
- CNR-ISC UOS Roma, Department of Physics, Sapienza University of Rome, Roma, Italy
| | - Andrea Masotti
- Bambino Gesù Children's Hospital, IRCCS, Research Laboratories
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Giansanti L, Bozzuto G, Fracassi A, Bombelli C, Stringaro A, Molinari A, Piozzi A, Sennato S, Mancini G. Effect of preparation protocol on physicochemical features and biointeractions of pegylated liposomes. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.04.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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47
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Diociaiuti M, Giordani C, Kamel GS, Brasili F, Sennato S, Bombelli C, Meneses KY, Giraldo MA, Bordi F. Monosialoganglioside-GM1 triggers binding of the amyloid-protein salmon calcitonin to a Langmuir membrane model mimicking the occurrence of lipid-rafts. Biochem Biophys Rep 2016; 8:365-375. [PMID: 28955978 PMCID: PMC5614544 DOI: 10.1016/j.bbrep.2016.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 03/30/2016] [Revised: 09/08/2016] [Accepted: 10/10/2016] [Indexed: 12/18/2022] Open
Abstract
GM1 ganglioside is known to be involved in the amyloid-associated diseases and it is a crucial factor for the assembly of amyloid proteins on lipid-rafts, which are lipid structures located on the synaptic plasma membranes. Due to its slow aggregation rate, we employed salmon calcitonin (sCT) as a suitable probe representative of amyloid proteins, to study the interaction between this class of proteins and a membrane model. Here, we prepared a neuronal membrane model by depositing onto mica two Langmuir-Blodgett films in liquid-condensed phase: the outer monolayer was characterized by high content of GM1 (50%) and minority parts of cholesterol and POPC (25-25%), while the inner one by plain POPC. To deeply investigate the interaction of sCT with this model and the role-played by GM1, we prepared the outer leaflet adding sCT at a concentration such that the number of proteins equals that of GM1. Atomic Force Microscopy revealed the occurrence of two distinct kinds of flat surfaces, with globular aggregates localized exclusively on top of the highest one. To unravel the nature of the interaction, we studied by ζ-potential technique liposomes composed as the outer leaflet of the model. Results demonstrated that an electrostatic interaction sCT-GM1 occurred. Finally, to investigate the interaction thermodynamics between sCT and the outer leaflet, Langmuir films as the outer monolayer and containing increasing content of sCT were studied by compression isotherms and Brewster Angle Microscopy experiments. Based on the all body of results we propose an interaction model where GM1 plays a pivotal role.
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Affiliation(s)
- Marco Diociaiuti
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, I-00161 Roma, Italy
- Correspondence to: Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, viale Regina Elena 299, 00161 Roma, Italy.
| | - Cristiano Giordani
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, I-00161 Roma, Italy
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Gihan S. Kamel
- Department of Physics, Faculty of Science, Helwan University, Cairo, Egypt
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Francesco Brasili
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Simona Sennato
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
| | - Cecilia Bombelli
- CNR, Istituto di Metodologie Chimiche, Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica, Università degli Studi di Roma “Sapienza”, I-00185 Roma, Italy
| | - Karen Y. Meneses
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Marco A. Giraldo
- Instituto de Física, Universidad de Antioquia, Medellín, Colombia
| | - Federico Bordi
- Dipartimento di Fisica and ISC-CNR, Sapienza Università di Roma, I-00185 Roma, Italy
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48
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Chronopoulou L, Margheritelli S, Toumia Y, Paradossi G, Bordi F, Sennato S, Palocci C. Biosynthesis and Characterization of Cross-Linked Fmoc Peptide-Based Hydrogels for Drug Delivery Applications. Gels 2015; 1:179-193. [PMID: 30674172 PMCID: PMC6318691 DOI: 10.3390/gels1020179] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/25/2015] [Accepted: 10/09/2015] [Indexed: 12/28/2022] Open
Abstract
Recently, scientific and technological interest in the synthesis of novel peptide-based hydrogel materials have grown dramatically. Applications of such materials mostly concern the biomedical field with examples covering sectors such as drug delivery, tissue engineering, and production of scaffolds for cell growth, thanks to their biocompatibility and biodegradability. In this work we synthesized Fmoc-Phe₃ based hydrogels of different chirality by using a biocatalytic approach. Moreover, we investigated the possibility of employing a crosslinker during the biosynthetic process and we studied and compared some chemico-physical features of both crosslinked and non-crosslinked hydrogels. In particular, we investigated the rheological properties of such materials, as well as their swelling ability, stability in aqueous medium, and their structure by SEM and AFM analysis. Crosslinked and non-crosslinked hydrogels could be formed by this procedure with comparable yields but distinct chemico-physical features. We entrapped dexamethasone within nanopolymeric particles based on PLGA coated or not with chitosan and we embedded these nanoparticles into the hydrogels. Dexamethasone release from such a nanopolymer/hydrogel system was controlled and sustained and dependent on genipin crosslinking degree. The possibility of efficiently coupling a drug delivery system to hydrogel materials seem particularly promising for tissue engineering applications, where the hydrogel could provide cells the necessary support for their growth, while nanoparticles could favor cell growth or differentiation by providing them the necessary bioactive molecules.
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Affiliation(s)
- Laura Chronopoulou
- Chemistry Department, University of Rome La Sapienza, Piazzale A. Moro 5, 00185 Rome, Italy.
| | - Silvia Margheritelli
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
| | - Yosra Toumia
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
| | - Gaio Paradossi
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy.
| | - Federico Bordi
- Department of Physics, University of Rome La Sapienza and Institute for Complex-System (ISC) CNR, UOS Sapienza, P.le Aldo Moro 2, I-00185 Roma, Italy.
| | - Simona Sennato
- Department of Physics, University of Rome La Sapienza and Institute for Complex-System (ISC) CNR, UOS Sapienza, P.le Aldo Moro 2, I-00185 Roma, Italy.
| | - Cleofe Palocci
- Chemistry Department, University of Rome La Sapienza, Piazzale A. Moro 5, 00185 Rome, Italy.
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49
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Gubitosi M, Travaglini L, di Gregorio MC, Pavel NV, Vázquez Tato J, Sennato S, Olsson U, Schillén K, Galantini L. Tailoring Supramolecular Nanotubes by Bile Salt Based Surfactant Mixtures. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500445] [Citation(s) in RCA: 6] [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: 12/31/2022]
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50
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Gubitosi M, Travaglini L, di Gregorio MC, Pavel NV, Vázquez Tato J, Sennato S, Olsson U, Schillén K, Galantini L. Tailoring supramolecular nanotubes by bile salt based surfactant mixtures. Angew Chem Int Ed Engl 2015; 54:7018-21. [PMID: 25925079 DOI: 10.1002/anie.201500445] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 01/16/2015] [Revised: 02/26/2015] [Indexed: 12/27/2022]
Abstract
An approach for tailoring self-assembled tubular structures is described. By controlling the relative composition of a two-component surfactant mixture comprising the natural bile salt lithocholate and its bolamphiphilic derivative, it was possible to finely tune the nanotube cross-section of the mixed tubular aggregates that self-associated spontaneously in aqueous solution at pH 12. The diameter was found to vary up to 50% when the stoichiometric ratio of the two bile salts was changed. The tuning of supramolecular nanochannels with such remarkable precision is of significant interest for technological applications of these materials.
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Affiliation(s)
- Marta Gubitosi
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Leana Travaglini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Maria Chiara di Gregorio
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - Nicolae V Pavel
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano
| | - José Vázquez Tato
- Facultad de Ciencias, Universidad de Santiago de Compostela, Avda. Alfonso X El Sabio s/n, 27002 Lugo (Spain)
| | - Simona Sennato
- Istitute of Complex Systems (ISC)-CNR, UOS Sapienza, P.le Aldo Moro 2, 00185 Rome (Italy)
| | - Ulf Olsson
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, 22100 Lund (Sweden)
| | - Karin Schillén
- Division of Physical Chemistry, Department of Chemistry, Center for Chemistry and Chemical Engineering, Lund University, 22100 Lund (Sweden)
| | - Luciano Galantini
- Dipartimento di Chimica, Sapienza Università di Roma, P.le Aldo Moro 5, 00185 Rome (Italy) luciano..
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