1
|
Fulgione A, Ianniello F, Papaianni M, Contaldi F, Sgamma T, Giannini C, Pastore S, Velotta R, Della Ventura B, Roveri N, Lelli M, Capuano F, Capparelli R. Biomimetic hydroxyapatite nanocrystals are an active carrier for Salmonella bacteriophages. Int J Nanomedicine 2019; 14:2219-2232. [PMID: 30992664 PMCID: PMC6445186 DOI: 10.2147/ijn.s190188] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
PURPOSE The use of bacteriophages represents a valid alternative to conventional antimicrobial treatments, overcoming the widespread bacterial antibiotic resistance phenomenon. In this work, we evaluated whether biomimetic hydroxyapatite (HA) nanocrystals are able to enhance some properties of bacteriophages. The final goal of this study was to demonstrate that biomimetic HA nanocrystals can be used for bacteriophage delivery in the context of bacterial infections, and contribute - at the same time - to enhance some of the biological properties of the same bacteriophages such as stability, preservation, antimicrobial activity, and so on. MATERIALS AND METHODS Phage isolation and characterization were carried out by using Mitomycin C and following double-layer agar technique. The biomimetic HA water suspension was synthesized in order to obtain nanocrystals with plate-like morphology and nanometric dimensions. The interaction of phages with the HA was investigated by dynamic light scattering and Zeta potential analyses. The cytotoxicity and intracellular killing activities of the phage-HA complex were evaluated in human hepatocellular carcinoma HepG2 cells. The bacterial inhibition capacity of the complex was assessed on chicken minced meat samples infected with Salmonella Rissen. RESULTS Our data highlighted that the biomimetic HA nanocrystal-bacteriophage complex was more stable and more effective than phages alone in all tested experimental conditions. CONCLUSION Our results evidenced the important contribution of biomimetic HA nanocrystals: they act as an excellent carrier for bacteriophage delivery and enhance its biological characteristics. This study confirmed the significant role of the mineral HA when it is complexed with biological entities like bacteriophages, as it has been shown for molecules such as lactoferrin.
Collapse
Affiliation(s)
- Andrea Fulgione
- Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,
| | - Flora Ianniello
- Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,
| | - Marina Papaianni
- Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,
| | - Felice Contaldi
- Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,
| | - Tiziana Sgamma
- Biomolecular Technology Group, School of Allied Health Sciences, De Montfort University, Leicester, UK
| | - Cinzia Giannini
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Stella Pastore
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Raffaele Velotta
- Department of Physics "Ettore Pancini", University of Naples "Federico II", Portici, Naples, Italy
| | | | | | - Marco Lelli
- Chemical Center Srl, Granarolo dell'Emilia, Bologna, Italy
| | - Federico Capuano
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy,
| | - Rosanna Capparelli
- Department of Agriculture, University of Naples "Federico II", Portici, Naples, Italy,
| |
Collapse
|
2
|
Ceretti M, Wahyudi O, André G, Meven M, Villesuzanne A, Paulus W. (Nd/Pr) 2NiO 4+δ: Reaction Intermediates and Redox Behavior Explored by in Situ Neutron Powder Diffraction during Electrochemical Oxygen Intercalation. Inorg Chem 2018; 57:4657-4666. [PMID: 29620364 DOI: 10.1021/acs.inorgchem.8b00393] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Oxygen intercalation/deintercalation in Pr2NiO4+δ and Nd2NiO4+δ was followed by in situ neutron powder diffraction during electrochemical oxidation/reduction, in a dedicated reaction cell at room temperature. For both systems three phases, all showing the same line width, were identified. The starting phases Pr2NiO4.23 and Nd2NiO4.24, considered with an average orthorhombic Fmmm symmetry, although both show a slight monoclinic distortion, get reduced in a two-phase reaction step to tetragonal intermediate phases with 0.07 ≤ δ ≤ 0.10 and P42/ ncm space group, which on further reduction transform, again in a two-phase reaction step, toward the respective stoichiometric (Pr/Nd)2NiO4.0 phases, with Bmab space group. Electrochemical oxidation does, however, not proceed fully reversibly for both cases: while the reoxidation of Nd2NiO4+δ is limited to the tetragonal intermediate phase with δ = 0.10, the homologous Pr2NiO4+δ can be reoxidized up to δ = 0.17, showing orthorhombic symmetry. For the intermediate tetragonal phase, we were able to establish for Pr2NiO4.09 a complex anharmonic displacement behavior of the apical oxygen atoms, as analyzed by single-crystal neutron diffraction and maximum entropy analysis, in agreement with a low- T diffusion pathway for oxygen ions, activated by lattice dynamics.
Collapse
Affiliation(s)
- Monica Ceretti
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM , Université de Montpellier , Place Eugène Bataillon , 34095 Montpellier Cedex 5, France
| | - Olivia Wahyudi
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM , Université de Montpellier , Place Eugène Bataillon , 34095 Montpellier Cedex 5, France.,CNRS , Université de Bordeaux, ICMCB , UMR5026, 87 Av. Dr. A. Schweitzer , 33608 Pessac Cedex, France
| | - Gilles André
- Laboratoire Léon Brillouin, UMR12, CEA-CNRS , CEA Saclay , 91191 Gif Sur Yvette, France
| | - Martin Meven
- Institute of Crystallography, RWTH Aachen University , and Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) , 85747 Garching , Germany
| | - Antoine Villesuzanne
- CNRS , Université de Bordeaux, ICMCB , UMR5026, 87 Av. Dr. A. Schweitzer , 33608 Pessac Cedex, France
| | - Werner Paulus
- Institut Charles Gerhardt Montpellier, UMR 5253 CNRS-UM-ENSCM , Université de Montpellier , Place Eugène Bataillon , 34095 Montpellier Cedex 5, France
| |
Collapse
|
3
|
Das A, Xhafa E, Nikolla E. Electro- and thermal-catalysis by layered, first series Ruddlesden-Popper oxides. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.07.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
4
|
Müller-Buschbaum H. Zur Kristallchemie von Oxoniccolaten der Alkali-, Erdalkali- und Seltenerdmetalle. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201000443] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
5
|
Ishikawa K, Metoki K, Miyamoto H. Orthorhombic–orthorhombic phase transitions in Nd2NiO4+δ (0.067≤δ≤0.224). J SOLID STATE CHEM 2009. [DOI: 10.1016/j.jssc.2009.05.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Schnelle W, Büchner B, Gamper E, Stein M, Fernández-Díaz MT, Odier P. Thermal properties at the low-temperature structural and magnetic phase transitions in Pr2NiO4 crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:9970-9976. [PMID: 9984733 DOI: 10.1103/physrevb.54.9970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
7
|
Medarde M, Rodríguez-Carvajal J, Vallet-Regí M, González-Calbet JM, Alonso J. Crystal structure and microstructure of Nd1.8Sr0.2NiO3.72: A K2NiF4-type nickelate with monoclinic symmetry and ordered oxygen vacancies. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:8591-8599. [PMID: 10009637 DOI: 10.1103/physrevb.49.8591] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
8
|
Medarde M, Rodríguez-Carvajal J, Martínez B, Batlle X, Obradors X. Magnetic ordering and spin reorientations in Nd1.8Sr0.2NiO3.72. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:9138-9149. [PMID: 10009696 DOI: 10.1103/physrevb.49.9138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|