Development of controlled release systems of biocides for the conservation of cultural heritage

Dresler, Cristopher; Saladino, Maria Luisa; Demirbağ, Çağlar; Caponetti, Eugenio; Martino, Delia Chillura; Alduina, Rosa

doi:10.1016/j.ibiod.2017.09.007

Cited by 37 publications

(28 citation statements)

References 24 publications

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“…Indeed, Gram-positive strains are protected by a cell wall mostly composed of mucopeptide, while Gram-negative microorganisms possess a thin layer of the latter and an additional layer of lipoproteins and lipopolysaccharides (LPS) [54,55], which might contribute to a high degree of resistance towards the composites tested in this study. Antibacterial activity against Gram-positive bacteria is much more frequent than that one against Gram-negative bacteria ones [42,[56][57][58][59][60]. The effect exerted by either CMC or CMC6/Exf -GO upon S. aureus and P. aeruginosa cells was corroborated by fluorescence microscopy imaging, after dual staining with acridine orange and ethidium bromide (Figure 8).…”

Section: Antibacterial and Cytotoxic Activitymentioning

confidence: 96%

Graphene Oxide Carboxymethylcellulose Nanocomposite for Dressing Materials

et al. 2020

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Sore, infected wounds are a major clinical issue, and there is thus an urgent need for novel biomaterials as multifunctional constituents for dressings. A set of biocomposites was prepared by solvent casting using different concentrations of carboxymethylcellulose (CMC) and exfoliated graphene oxide (Exf-GO) as a filler. Exf-GO was first obtained by the strong oxidation and exfoliation of graphite. The structural, morphological and mechanical properties of the composites (CMCx/Exf-GO) were evaluated, and the obtained composites were homogenous, transparent and brownish in color. The results confirmed that Exf-GO may be homogeneously dispersed in CMC. It was found that the composite has an inhibitory activity against the Gram-positive Staphylococcus aureus, but not against Gram-negative Pseudomonas aeruginosa. At the same time, it does not exhibit any cytotoxic effect on normal fibroblasts.

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Section: Antibacterial and Cytotoxic Activitymentioning

confidence: 96%

Graphene Oxide Carboxymethylcellulose Nanocomposite for Dressing Materials

et al. 2020

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“…The antibacterial activity was preliminarily assessed through the disc diffusion antibiotic sensitivity assay . Briefly, a concentrated bacterial suspension (10 7 cells) was spread onto the Luria Bertani [hereinafter named as LB and composed of (g L −1 ): sodium chloride, 10; yeast extract, 5; tryptone, 10] agar plates (containing 20 % agar, hereafter named LB‐agar).…”

Section: Figurementioning

confidence: 99%

Superior Antibacterial Activity of Integral Lemon Pectin Extracted via Hydrodynamic Cavitation

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Albanese³

et al. 2020

ChemistryOpen

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Pectin extracted via hydrodynamic cavitation in water only from waste lemon peel and further isolated via freeze drying displays significant antibacterial activity against Staphylococcus aureus, a Gram positive pathogen which easily contaminates food. The antibacterial effect of the new IntegroPectin is largely superior to that of commercial citrus pectin, opening the way to advanced applications of a new bioproduct now obtainable in large amounts and at low cost from citrus juice industry's waste.

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“…Another potential application of the nanotechnology is represented by the use of nanocapsules or nanoparticles for the controlled release of the biocidal agents. For example, Dresler et al [77] proposed the use of pristine and functionalized silica (with amino or carboxylic groups) for the controlled release of the widely used biocides New Des 50 and Biotin T. The authors tested the efficiency of the proposed material both in vitro (against Gram-positive and Gram-negative bacteria-Kokuria rhizophila, Staphylococcus aureus and Escherichia coli). The proposed materials were tested by immersing in the solution a stone fragment (not defined) from a fountain located in Diamantina, Minas-Gerais, Brazil.…”

Section: Nanotechnological Approachesmentioning

confidence: 99%

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

2020

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Vernacular buildings are usually constructed using materials at hand, including wood, natural stone and bricks (either clay or mud bricks). All those materials are exposed to a series of environmental factors, affecting their structure and integrity. The literature review was conducted using different databases (Scopus, Web of Science, ScienceDirect, SpringerLink) using as keywords the historical material, "heritage" and the terms regarding the desired effect, within the envisaged time period (2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018)(2019). The assessment of the results was performed by manual inspection (reading the entire article) and the selection of the works to be inserted in the current review was made by evaluating the contribution to the field. This review summarizes different aspects related to the restoration and conservation of wooden and masonry elements of traditional buildings, including materials used for biocidal interventions, protection against abiotic factors, cleaning and consolidation agents. Finally, a critical discussion regarding the current limitations and future perspectives concludes the review work, envisaging the role of researchers specialized in materials science in the context of cultural heritage conservation.

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Development of controlled release systems of biocides for the conservation of cultural heritage

Cited by 37 publications

References 24 publications

Graphene Oxide Carboxymethylcellulose Nanocomposite for Dressing Materials

Graphene Oxide Carboxymethylcellulose Nanocomposite for Dressing Materials

Superior Antibacterial Activity of Integral Lemon Pectin Extracted via Hydrodynamic Cavitation

Selected Aspects Regarding the Restoration/Conservation of Traditional Wood and Masonry Building Materials: A Short Overview of the Last Decade Findings

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