Engineered Nanoparticles (ENPs) in the Aquatic Environment: an Overview of Their Fate and Transformations

M, Camil Rex; Anand, Shalini; Kumar, Pramod; Mukherjee, Amitava

doi:10.1007/s11270-023-06488-1

Cited by 6 publications

(3 citation statements)

References 157 publications

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“…Engineered nanoparticles (ENPs) have dimensions ranging from 1 to 100 nm (Vert et al, 2012), and possess unique properties which make them highly valuable for various applications in technology, medicine, environment and consumer products (Zhang et al, 2016;Mitchell et al, 2021;Keller et al, 2023). When released into freshwater environment, ENPs can undergo a variety of physical and chemical transformations (Levard et al, 2012;Batley et al, 2013;Yu et al, 2018;Wheeler et al, 2021;Liu et al, 2022;Rex M et al, 2023). The interconnected transformation processes determine collectively the environmental behavior and effects of ENPs on aquatic biota (French et al, 2009;Fernando and Zhou, 2019;Khort et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Unraveling the impact of phytoplankton secretions on the behavior of metal-containing engineered nanoparticles in aquatic environment

Gasco,

Slaveykova

2024

Front. Environ. Sci.

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Based on the up-to-date knowledge we critically discuss the current understanding of the influence of the compounds secreted by phytoplankton species on the fate of metal-containing engineered nanoparticles (ENPs) in aquatic settings. Different biomolecules, such as extracellular polymeric substances (EPS) and exometabolites play important, yet to elucidate, role in the dissolution, colloidal stability, transformations and biouptake of the ENPs and thus shape their behavior within the phycosphere. Phytoplankton secretions can also mediate the synthesis of ENPs from dissolved ions by reducing the metals ions and capping the newly formed ENPs. However, the environmental significance of this process remains to be demonstrated. Exposure to ENPs triggers changes in the secretion of the biomolecules. An improved understanding of the regulatory mechanism and exometabolite changes due to ENP exposure is essential for deciphering the ENPs-phytoplankton interactions. Unveiling the significance of secreted biomolecules in modulating the behavior of the metal-containing ENPs is central for understudying the phytoplankton-ENPs feedbacks, drivers of transformations of ENPs and their mechanisms in the aquatic environment.

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Section: Introductionmentioning

confidence: 99%

Unraveling the impact of phytoplankton secretions on the behavior of metal-containing engineered nanoparticles in aquatic environment

Gasco,

Slaveykova

2024

Front. Environ. Sci.

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“…Compared with traditional pouring lubrication, only a small amount of nanofluid is required, which significantly reduces the economic costs and environmental hazards [17,18]. Although the misuse and improper disposal of nanoparticles may lead to their accumulation in different segments of the environment [19][20][21], the small additive amount of the nanoparticles and the big performance improvement make the water-based nanofluid a valuable research direction for metal cutting.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy

Yang,

Luan,

Liu

et al. 2023

Preprint

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Titanium alloys are difficult to machine and have poor tribological properties. This paper investigates the lubricating performance of γ-Al2O3/ZnO hybrid nanofluids for Ti-6Al-4V. The pure and hybrid nanofluid are compared, and the effects of γ-Al2O3/ZnO ratios are studied. The results show that γ-Al2O3/ZnO hybrid nanofluids outperform pure nanofluid in terms of lower friction coefficients and better surface quality. Moreover, the hybrid nanofluid with a mass ratio of Al2O3 to ZnO of 2:1 demonstrates the best lubrication performance with a reduced friction coefficient of up to 22.1% compared to the base solution, resulting in improved surface quality. Al2O3 nanoparticles can adhere to the surface of ZnO nanoparticles and work as a coating, which further enhances the lubrication performance of the water-based nanofluid.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy

Yang,

Luan,

Liu

et al. 2023

Metals

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Titanium alloys are difficult to machine and have poor tribological properties. This paper investigates the lubricating performance of γ-Al2O3/ZnO hybrid nanofluids for Ti-6Al-4V. Pure and hybrid nanofluids are compared, and the effects of γ-Al2O3/ZnO ratios are studied. The results show that γ-Al2O3/ZnO hybrid nanofluids outperform pure nanofluids in terms of lower friction coefficients and better surface quality. Moreover, the hybrid nanofluid with a mass ratio of Al2O3 to ZnO of 2:1 demonstrates the best lubrication performance with a reduced friction coefficient of up to 22.1% compared to the base solution, resulting in improved surface quality. Al2O3 nanoparticles can adhere to the surface of ZnO nanoparticles and work as a coating, which further enhances the lubrication performance of the water-based nanofluid.

show abstract

Engineered Nanoparticles (ENPs) in the Aquatic Environment: an Overview of Their Fate and Transformations

Cited by 6 publications

References 157 publications

Unraveling the impact of phytoplankton secretions on the behavior of metal-containing engineered nanoparticles in aquatic environment

Unraveling the impact of phytoplankton secretions on the behavior of metal-containing engineered nanoparticles in aquatic environment

Investigation on the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy

Investigation of the Lubrication Performance of γ-Al2O3/ZnO Hybrid Nanofluids for Titanium Alloy

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