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Hudiță A, Grumezescu V, Gherasim O, Grumezescu AM, Dorcioman G, Negut I, Oprea OC, Vasile BȘ, Gălățeanu B, Curuțiu C, Holban AM. MAPLE Processed Nanostructures for Antimicrobial Coatings. Int J Mol Sci 2022; 23:ijms232315355. [PMID: 36499682 PMCID: PMC9738358 DOI: 10.3390/ijms232315355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Despite their great benefits for debilitated patients, indwelling devices are prone to become easily colonized by resident and opportunistic microorganisms, which have the ability to attach to their surfaces and form highly specialized communities called biofilms. These are extremely resistant to host defense mechanisms and antibiotics, leading to treatment failure and device replacement, but also to life-threatening complications. In this study, we aimed to optimize a silica (SiO2)-coated magnetite (Fe3O4)-based nanosystem containing the natural antimicrobial agent, eugenol (E), suitable for MAPLE (matrix-assisted pulsed laser evaporation) deposition as a bioactive coating for biomedical applications. X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, and transmission electron microscopy investigations were employed to characterize the obtained nanosystems. The in vitro tests evidenced the superior biocompatibility of such nanostructured coatings, as revealed by their non-cytotoxic activity and ability to promote cellular proliferation and sustain normal cellular development of dermal fibroblasts. Moreover, the obtained nanocoatings did not induce proinflammatory events in human blood samples. Our studies demonstrated that Fe3O4 NPs can improve the antimicrobial activity of E, while the use of a SiO2 matrix may increase its efficiency over prolonged periods of time. The Fe3O4@SiO2 nanosystems showed excellent biocompatibility, sustaining human dermal fibroblasts' viability, proliferation, and typical architecture. More, the novel coatings lack proinflammatory potential as revealed by the absence of proinflammatory cytokine expression in response to human blood sample interactions.
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Affiliation(s)
- Ariana Hudiță
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Valentina Grumezescu
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
- Correspondence:
| | - Oana Gherasim
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 050657 Bucharest, Romania
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
| | - Gabriela Dorcioman
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Irina Negut
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania
| | - Ovidiu-Cristian Oprea
- Academy of Romanian Scientists, Ilfov No. 3, 050044 Bucharest, Romania
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Politehnica University of Bucharest, 011061 Bucharest, Romania
| | - Bianca Gălățeanu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Carmen Curuțiu
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei Street, 077206 Bucharest, Romania
| | - Alina Maria Holban
- Department of Microbiology and Immunology, Faculty of Biology, University of Bucharest, 91–95 Splaiul Independentei Street, 077206 Bucharest, Romania
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Ronin E, Derancourt C, Cabié A, Marion-Sanchez K. Achromobacter spp. Surgical Site Infections: A Systematic Review of Case Reports and Case Series. Microorganisms 2021; 9:microorganisms9122471. [PMID: 34946073 PMCID: PMC8704055 DOI: 10.3390/microorganisms9122471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Achromobacter species are isolated from rare but severe healthcare-associated infections, including surgical site infections. They are considered to preferentially infect immunocompromised patients but so far with limited evidence. We conducted a systematic review on Achromobacter spp. surgical site infections (SSIs) to determine if such infections were indeed more commonly associated with immunocompromised patients. The secondary objective was to describe the characteristics of infected patients. Eligible articles had to be published before 30 September 2020 and to report Achromobacter spp. SSIs across all surgical specialties excluding ophthalmology. Analyses were performed on individual data without meta-analysis. Cases were divided into 2 subgroups: one group which had either prosthesis or implant and the other group which did not. A first selection led to a review of 94 articles, of which 37 were analyzed. All were case reports or case series and corresponded to 49 infected patients. Most of the patients were under 65 years of age and had undergone a heart or digestive surgery followed by deep infection with no co-infecting pathogens. Nine out of the 49 cases were immunocompromised, with similar distribution between the two subgroups (16.6% and 20%, respectively). This review suggests that Achromobacter spp. SSIs do not preferentially target immunocompromised patients.
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Affiliation(s)
- Eve Ronin
- Department of Hospital Hygiene, CHU Martinique, F-97200 Fort-de-France, Martinique;
| | | | - André Cabié
- Department of Infectious Diseases, CHU Martinique, F-97200 Fort-de-France, Martinique;
- Unité Mixte de Recherche 1058 : Pathogenesis and Control of Chronic and Emerging Infections, 34000 Montpellier, France
| | - Karine Marion-Sanchez
- Department of Hospital Hygiene, CHU Martinique, F-97200 Fort-de-France, Martinique;
- Unité Mixte de Recherche 1058 : Pathogenesis and Control of Chronic and Emerging Infections, 34000 Montpellier, France
- Correspondence: ; Tel.: +596-596-55-97-42
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