Protection of 18th century paper using antimicrobial nano-magnesium oxide

Franco Castillo, Isabel ; De Matteis, Laura ; Marquina, Clara (Universidad de Zaragoza) ; García Guillén, Esther ; Martínez de la Fuente, Jesús ; Mitchell, Scott G. (Universidad de Zaragoza)

Resumen: Magnesium oxide nanoparticles (MgO NPs) have attracted considerable interest as antimicrobial agents in a wide variety of applications. We report a simple synthetic route towards MgO NPs (average diameter 10 nm) possessing potent antibacterial activity against both Gram-negative and Gram-positive bacteria. Detailed electron microscopy studies show how these particles induce oxidative stress, cell membrane leakage and cell death in bacteria at low NP concentrations, but remain non-toxic to eukaryotic cells. Applying a homogeneous dispersion of these nanoparticles on 18th century paper proved to be a highly effective means of preventing bacterial colonisation without altering the appearance of the paper samples, thus opening the doors to the use of these colourless, low-cost, and scalable nanoparticles for preventing biodeterioration in a range of paper-based objects and surfaces.

Idioma: Inglés

DOI: 10.1016/j.ibiod.2018.04.004

Año: 2019

Publicado en: INTERNATIONAL BIODETERIORATION & BIODEGRADATION 141 (2019), 79-86
ISSN: 0964-8305

Factor impacto JCR: 4.074 (2019)

Categ. JCR: BIOTECHNOLOGY & APPLIED MICROBIOLOGY rank: 36 / 156 = 0.231 (2019) - Q1 - T1
Categ. JCR: ENVIRONMENTAL SCIENCES rank: 66 / 264 = 0.25 (2019) - Q1 - T1

Factor impacto SCIMAGO: 1.172 - Biomaterials (Q1) - Waste Management and Disposal (Q1) - Microbiology (Q2)

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Química Orgánica (Dpto. Química Orgánica)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)