Alternative mitigating solutions based on inorganic nanoparticles for the preservation of cultural heritage

Frontiers in Materials

Materials

Ionuţ Pecete¹  Nicoleta Ianovici²  Daniela-Georgiana Ciobanu²  Denisa Ficai³  Andreea Ştefania Dumbravă⁴  Tatiana Eugenia Șesan⁵  Liliana Marinescu⁶  Ludmila Motelica⁷  Adrian Vasile Surdu⁷  Cristina Chircov⁷  Anton Ficai⁸  Ovidiu Cristian Oprea⁹  Irina Balotescu^1,10  Ioana Cristina Marinas^1,10  Marcela Popa^1,10  Viorica Maria Corbu^1,11  Irina Gheorghe-Barbu^1,12  Lia Mara Dițu^1,12  Mariana Carmen Chifiriuc^1,13 

[1] Central Reference Synevo-Medicover Laboratory, Bucharest, Romania;Department of Biology-Chemistry, Environmental Biology and Biomonitoring Research Center, West University of Timisoara, Timișoara, Romania;Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University POLITEHNICA of Bucharest, Bucharest, Romania;Department of Microbiology and Botany, Faculty of Biology, University of Bucharest, Bucharest, Romania;Department of Technological Irradiation (IRASM), Horia Hulubei National Institute of Physics and Nuclear Engineering–IFIN-HH, Măgurele, Romania;Department of Microbiology and Botany, Faculty of Biology, University of Bucharest, Bucharest, Romania;Romanian Academy of Agricultural and Forestry Sciences, Bucharest, Romania;Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University POLITEHNICA of Bucharest, Bucharest, Romania;Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University POLITEHNICA of Bucharest, Bucharest, Romania;National Centre for Micro and Nanomaterials and National Centre for Food Safety, University POLITEHNICA of Bucharest, Bucharest, Romania;Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University POLITEHNICA of Bucharest, Bucharest, Romania;National Centre for Micro and Nanomaterials and National Centre for Food Safety, University POLITEHNICA of Bucharest, Bucharest, Romania;Academy of Romanian Scientist, Bucharest, Romania;National Centre for Micro and Nanomaterials and National Centre for Food Safety, University POLITEHNICA of Bucharest, Bucharest, Romania;Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Chemical Engineering and Biotechnologies, University POLITEHNICA of Bucharest, Bucharest, Romania;Academy of Romanian Scientist, Bucharest, Romania;Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania;Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania;Department of Genetics, Faculty of Biology, University of Bucharest, Bucharest, Romania;Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania;Department of Microbiology and Botany, Faculty of Biology, University of Bucharest, Bucharest, Romania;Research Institute of the University of Bucharest, University of Bucharest, Bucharest, Romania;Department of Microbiology and Botany, Faculty of Biology, University of Bucharest, Bucharest, Romania;Academy of Romanian Scientist, Bucharest, Romania;Romanian Academy, Bucharest, Romania;

关键词: cultural heritage objects;    biodeterioration;    enzyme/organic acid production;    nanoparticles;    antimicrobial activity;    antibiofilm activity;    ecotoxicity;   

DOI  :  10.3389/fmats.2023.1272869

 received in 2023-08-04, accepted in 2023-09-15,  发布年份 2023

来源: Frontiers

【 摘 要 】

Introduction: Biodeterioration is a big challenge for the preservation of cultural heritage objects and for the community’s safety, fostering the search for novel methods effective in removing microbial biofilms and subsequent biodeterioration. In this context, nanoparticles (NPs) are considered an interesting alternative, based on their unique physico-chemical and biological properties.Methods: The present study aimed to evaluate the antimicrobial efficiency of Ag, Au, Cu, and ZnO NPs against a significant number of filamentous fungi and bacterial strains isolated from wooden and stone cultural heritage objects from different Romanian regions, as well as from museum collections, with the final goal to establish their potential to develop novel preservation strategies, which have high efficiency and low ecotoxicity.Results: Six types of nanoparticles (NPs) based on Ag, Au, Cu, and ZnO were synthesized and characterized for their physico-chemical properties, ecotoxicity, and efficacy against 75 filamentous fungi and 17 bacterial strains isolated from wooden and stone cultural heritage objects (15th–19th century). The results showed that all synthetized NPs are homogeneous, demonstrating a good stabilizing coating, and have spherical or triangular shapes, with sizes between 9 and 25 nm. The highest antifungal efficiency has been recorded for Ag NPs, followed by Cu NPs and ZnO NPs, with the most susceptible strains being Aspergillus montevidensis, Penicillium commune, Penicillium corylophilum, Bacillus megaterium, and B. cereus. The Cu NPs and ZnO NPs decreased the capacity of microbial strains to adhere to the inert substratum. The influence of the tested NPs against enzyme/organic acid production varied depending on the NP types and by species.Conclusion: The obtained results are promising for the development of efficient and economical alternative solutions for heritage preservation, showing high antimicrobial activity against the prevalent fungal and bacterial strains involved in the biodeterioration of Romanian heritage objects.

【 授权许可】

Unknown   
Copyright © 2023 Corbu, Dumbravă, Marinescu, Motelica, Chircov, Surdu, Gheorghe-Barbu, Pecete, Balotescu, Popa, Marinas, Ianovici, Ciobanu, Dițu, Ficai, Oprea, Ficai, Eugenia Șesan and Chifiriuc.