Nanoparticles and interfaces with toxic elements in fluvial suspended sediment

Silva, Luis; Dotto, Guilherme Luiz; Pinto, Diana; Oliveira, Marcos L.S.

doi:10.1016/j.marpolbul.2021.112405

Cited by 7 publications

(2 citation statements)

References 33 publications

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“…This allowed the detection of minerals present in the analyzed structures and the identification of their amorphous phases in microstructures. According to Silva et al [51] and Oliveira et al [52], identifying chemical elements in structures smaller than 10 µm is innovative, as it allows for better quantitative identification in structures such as NP nanoparticles and ultrafine particles. In Figure 5, the presence of significant elements can be observed.…”

Section: Laboratory Analysis Of the Sampled Sedimented Materialsmentioning

confidence: 99%

Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Neckel,

Taleb,

Ibrahim

et al. 2024

Sustainability

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Human actions that modify terrestrial and aquatic environments contribute to unsustainability, influencing the economy and human health. Urban environments are responsible for the dispersion of pollution and nanoparticles (NPs), which can potentially harm the health of human populations and contaminate the fauna and flora of aquatic ecosystems on a global scale. The objective of this study is to analyze the dissemination of nanoparticles in Cartagena Bay, Colombia, during the strong winds/low runoff season of January 2020 and the weak winds/high runoff season of October 2021. This was accomplished using images from the Sentinel-3B OLCI (Ocean Land Color Instrument) satellite in conjunction with an analytical chemical analysis of sediments collected in the study area in a laboratory with advanced electron microscopy. It was possible to obtain, on average, a sample of suspended sediments (SSs) every 1000 m in the areas of Bocagrande, Isla de Tierra Bomba, and Playa Blanca, which were analyzed in the laboratory with X-ray diffraction (XRD) and electron transmission and scanning microscopies. Images obtained in the summer of 2020 and winter of 2021 by the Sentinel 3B OLCI satellite were selected at a distance of 1 km from each other and analyzed for the following variables: chlorophyll (CHL_NN), water turbidity (TSM_NN), and suspended pollution potential (ADG443_NN). In addition to of evaluating georeferenced maps, they were subjected to an analysis within the statistical and K-Means clustering model. The laboratory analysis of SSs showed the presence of potentially toxic NPs, responsible for contamination that may harm the health of the local population and marine ecosystems. The K-Means and satellite image analysis corroborated the laboratory analyses, revealing the source of the pollution and contamination of Cartagena Bay as the estuary located close to its center.

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Section: Laboratory Analysis Of the Sampled Sedimented Materialsmentioning

confidence: 99%

Environmental Unsustainability in Cartagena Bay (Colombia): A Sentinel-3B OLCI Satellite Data Analysis and Terrestrial Nanoparticle Quantification

Neckel,

Taleb,

Ibrahim

et al. 2024

Sustainability

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“…For instance, although antiviral face masks containing metal nanoparticles were proposed as a more sustainable alternative to disposable masks, since they reduce the amount of non-biodegradable waste material [5], their improper disposal has contributed to the release of metal nanoparticles into the environment. One recent example was their release into Colombian and Southern Brazilian waters [6,7]. Improper disposal may also cause ecological harm [8].…”

Section: Introductionmentioning

confidence: 99%

Potential and risks of nanotechnology applications in COVID-19-related strategies for pandemic control

Araste,

Bakker,

Zandieh-Doulabi

2023

J Nanopart Res

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The ongoing battle against viral infections highlighted so recently by the COVID-19 pandemic demonstrates the need to develop new approaches using nanotechnology in antiviral strategies. Nanoparticles have emerged as promising tools in the fight against viral outbreaks, offering various options for application such as biosensors, vaccine nanoparticles, disinfectants, and functionalized nanoparticles. In this comprehensive review, we evaluate the role of nanoparticles in pandemic control, exploring their potential applications, benefits, and associated risks. We first discuss the importance of nanotechnology in viral outbreak management, particularly in vaccine development. Although lipid nanoparticles play a crucial role in mRNA vaccines, there are concerns about their potential side effects. Although functionalization of protective face masks using metallic nanoparticles has emerged as a sustainable alternative to disposable masks, reducing waste production and enhancing virus filtration, improper disposal of such masks leads to environmental contamination and potential ecological harm. Second, we address the potential adverse effects associated with nanoparticle-based vaccines containing polyethylene glycol and other vaccine components, which trigger autoimmune diseases and alter menstrual cycles. To manage outbreaks effectively, we must minimize such potential risks and environmental impacts. Thus, when developing effective strategies for future pandemic control, it is crucial to understand the advantages and challenges associated with nanoparticle usage.

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