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Article

Sintered and 3D-Printed Bulks of MgB2-Based Materials with Antimicrobial Properties

1
National Institute of Materials Physics, 405A Atomistilor Street, 077125 Magurele, Romania
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Faculty of Material Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
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Faculty of Biology and The Research Institute of the University of Bucharest (ICUB), University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania
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Physics and Chemistry Departments, University of Turin, 1-7 Via Pietro Giuria, 10125 Turin, Italy
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European Synchrotron Radiation Facility, 71 Avenue des Martyrs, 38000 Grenoble, France
*
Authors to whom correspondence should be addressed.
Academic Editor: Marcello Iriti
Molecules 2021, 26(19), 6045; https://doi.org/10.3390/molecules26196045
Received: 1 September 2021 / Revised: 27 September 2021 / Accepted: 28 September 2021 / Published: 6 October 2021
(This article belongs to the Special Issue Synthetic Antibiofilm Agents: Design, Synthesis and Applications)
Pristine high-density bulk disks of MgB2 with added hexagonal BN (10 wt.%) were prepared using spark plasma sintering. The BN-added samples are machinable by chipping them into desired geometries. Complex shapes of different sizes can also be obtained by the 3D printing of polylactic acid filaments embedded with MgB2 powder particles (10 wt.%). Our present work aims to assess antimicrobial activity quantified as viable cells (CFU/mL) vs. time of sintered and 3D-printed materials. In vitro antimicrobial tests were performed against the bacterial strains Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC 27853, Staphylococcus aureus ATCC 25923, Enterococcus faecium DSM 13590, and Enterococcus faecalis ATCC 29212; and the yeast strain Candida parapsilosis ATCC 22019. The antimicrobial effects were found to depend on the tested samples and microbes, with E. faecium being the most resistant and E. coli the most susceptible. View Full-Text
Keywords: MgB2; antimicrobial activity; spark plasma sintering; machinable material; 3D printing MgB2; antimicrobial activity; spark plasma sintering; machinable material; 3D printing
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MDPI and ACS Style

Badica, P.; Batalu, N.D.; Chifiriuc, M.C.; Burdusel, M.; Grigoroscuta, M.A.; Aldica, G.V.; Pasuk, I.; Kuncser, A.; Popa, M.; Agostino, A.; Operti, L.; Padhi, S.K.; Bonino, V.; Truccato, M. Sintered and 3D-Printed Bulks of MgB2-Based Materials with Antimicrobial Properties. Molecules 2021, 26, 6045. https://doi.org/10.3390/molecules26196045

AMA Style

Badica P, Batalu ND, Chifiriuc MC, Burdusel M, Grigoroscuta MA, Aldica GV, Pasuk I, Kuncser A, Popa M, Agostino A, Operti L, Padhi SK, Bonino V, Truccato M. Sintered and 3D-Printed Bulks of MgB2-Based Materials with Antimicrobial Properties. Molecules. 2021; 26(19):6045. https://doi.org/10.3390/molecules26196045

Chicago/Turabian Style

Badica, Petre, Nicolae D. Batalu, Mariana C. Chifiriuc, Mihail Burdusel, Mihai A. Grigoroscuta, Gheorghe V. Aldica, Iuliana Pasuk, Andrei Kuncser, Marcela Popa, Angelo Agostino, Lorenza Operti, Santanu K. Padhi, Valentina Bonino, and Marco Truccato. 2021. "Sintered and 3D-Printed Bulks of MgB2-Based Materials with Antimicrobial Properties" Molecules 26, no. 19: 6045. https://doi.org/10.3390/molecules26196045

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