Nanoparticles in the Earth surface systems and their effects on the environment and resource

Ju, Yi‐Hsu; Li, Xin; Ju, Liting; Feng, Hongye; Tan, Fengqi; Cui, Yanshan; Yang, Yi; Wang, Xueqiu; Cao, Jianjin; Qiao, Peng; Xiao, Lei; Wang, Peng; Tao, Liru

doi:10.1016/j.gr.2022.02.012

Cited by 14 publications

(9 citation statements)

References 269 publications

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“…Nanoparticles (NPs) and ultra-fine particles (natural or anthropogenic) have been increasingly studied as they have marked effects on both the environment and human health, regardless of their method of deposition or accumulation [71][72][73]. The NPs detected in this study are excellent indicators of the mechanisms existing in the geological processes and can be used for the exploration of existing resources in the BFCTs, considering that the detected NPs had geochemical, physical and/or biological information about the layers buried in the basins and areas of deposits of fine coal tailings.…”

Section: Nanoparticlesmentioning

confidence: 99%

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

et al. 2022

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The objective of this study is to obtain a more detailed assessment of particles that contain rare-earth elements (REEs) in abandoned deposits of Brazilian fine coal tailings (BFCTs), so as to aid current coal mining industries in the identification of methodologies for extracting such elements (Santa Catarina State, Brazil). The BFCT areas were sampled for traditional mineralogical analysis by X-ray Diffraction, Raman Spectroscopy and nanomineralogy by a dual beam focused ion beam (FIB) coupled with field emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) coupled with an energy dispersive X-ray microanalysis system (EDS). The results show that the smaller the sampled coal fines were, the higher the proportion of rare-earth elements they contained. Although the concentration of REEs is below what would normally be considered an economic grade, the fact that these deposits are already ground and close to the surface negate the need for mining (only uncovering). This makes it significantly easier for REEs to be extracted. In addition, owing to their proximity to road and rail transport in the regions under study, the opportunity exists for such resources (BFCTs) to be utilized as a secondary market as opposed to simply being discarded as has been done in the past.

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Section: Nanoparticlesmentioning

confidence: 99%

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

et al. 2022

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“…Nanoparticles in the natural world are widely present (e. g., photochemical products and volcanic activity). [3] Also, nanoparticles were products of combustion and so on, and recently they have been used in vehicles' exhaust. Scientists have been studying and working with nanoparticles for centuries, but since they could not see the structure of nanoparticles, they could not use them.…”

Section: Introductionmentioning

confidence: 99%

“…Nanoparticles can be defined as particles smaller than 100 nm that exhibit new size characteristics compared to larger particles. Nanoparticles in the natural world are widely present (e. g., photochemical products and volcanic activity) [3] . Also, nanoparticles were products of combustion and so on, and recently they have been used in vehicles′ exhaust.…”

Section: Introductionmentioning

confidence: 99%

Nano‐Biotechnology and Challenges of Drug Delivery System in Cancer Treatment Pathway: Review Article

Asadipour

Asgari

Mousavi

et al. 2023

Chemistry & Biodiversity

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In this review, we discuss Nanotechnology models, which have been developed recently in cancer treatment. Nanotechnology manipulates matter at the atomic and molecular scale to create materials with new and advanced properties. Nano‐biotechnology consists of the branches of nanotechnology that have been applied in biology (molecular and cellular genetics) and biotechnology. Nano‐biotechnology allows us to put components and compounds into cells and build new materials using new methods like assembly. Cancer is a disease caused by an uncontrolled division of abnormal cells in a part of the body. Its therapeutic methods include chemotherapy, radiation, or surgery, but the effects of these techniques are not only on tumor tissue and may affect healthy tissues. Nano‐Biotech applications regarding cancer include drug delivery, treatment, and foresight therapy. This review article aims to obtain a proper mentality of the current technologies of Nano‐biotechnology for cancer treatment.

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“…In other smelting ashes, the presence of metal nanoparticles (NPs) has been observed, including Fe, Pb, Zn, and Cu. These NPs exhibit higher biotoxicity compared to their dissolved and bulk metal counterparts. − Recent studies have confirmed the presence of metal NPs in natural environments, including Ce NPs in surface water, atmospheric with Ti NPs, soil with Ag NPs, and sediment with Cu NPs . These metal NPs can disrupt ecosystems, contaminate water sources, and raise human health concerns, including respiratory issues and potential systemic toxicity .…”

mentioning

confidence: 99%

“…7−9 Recent studies have confirmed the presence of metal NPs in natural environments, including Ce NPs in surface water, atmospheric with Ti NPs, soil with Ag NPs, and sediment with Cu NPs. 10 These metal NPs can disrupt ecosystems, contaminate water sources, and raise human health concerns, including respiratory issues and potential systemic toxicity. 11 However, the speciation of V in smelting ash, particularly its nanoscale form, has not been fully characterized, thereby limiting an in-depth understanding of the environmental and geochemical behavior of smelting residues.…”

mentioning

confidence: 99%

Deciphering Vanadium Speciation in Smelting Ash and Adaptive Responses of Soil Microorganisms

He,

Zhang,

Yan

et al. 2024

ACS Nano

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Abundant smelting ash is discharged during pyrometallurgical vanadium (V) production. However, its associated V speciation and resultant ecological impact have remained elusive. In this study, V speciation in smelting ash and its influence on the metabolism of soil microorganisms were investigated. Smelting ashes from V smelters contained abundant V (19.6− 115.9 mg/g). V(V) was the dominant species for soluble V, while solid V primarily existed in bioavailable forms. Previously unrevealed V nanoparticles (V-NPs) were prevalently detected, with a peak concentration of 1.3 × 10 13 particles/g, a minimal size of 136.0 ± 0.6 nm, and primary constituents comprising FeVO 4 , VO 2 , and V 2 O 5 . Incubation experiments implied that smelting ash reshaped the soil microbial community. Metagenomic binning, gene transcription, and component quantification revealed that Microbacterium sp. and Tabrizicola sp. secreted extracellular polymeric substances through epsB and yhxB gene regulation for V-NPs aggregation to alleviate toxicity under aerobic operations. The V K-edge X-ray absorption near-edge structure (XANES) spectra suggested that VO 2 NPs were oxidized to V 2 O 5 NPs. In the anaerobic case, Comamonas sp. and Achromobacter sp. reduced V(V) to V(IV) for detoxification regulated by the napA gene. This study provides a deep understanding of the V speciation in smelting ash and microbial responses, inspiring promising bioremediation strategies to reduce its negative environmental impacts.

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Nanoparticles in the Earth surface systems and their effects on the environment and resource

Cited by 14 publications

References 269 publications

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

Brazilian Coal Tailings Projects: Advanced Study of Sustainable Using FIB-SEM and HR-TEM

Nano‐Biotechnology and Challenges of Drug Delivery System in Cancer Treatment Pathway: Review Article

Deciphering Vanadium Speciation in Smelting Ash and Adaptive Responses of Soil Microorganisms

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