Adsorptive interaction of antibiotic ciprofloxacin on polyethylene microplastics: Implications for vector transport in water

Atugoda, Thilakshani; Wijesekara, Hasintha; Werellagama, D. R. I. B.; Jinadasa, K.B.S.N.; Bolan, Nanthi; Vithanage, Meththika

doi:10.1016/j.eti.2020.100971

Cited by 142 publications

(40 citation statements)

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“…These in vitro studies suggest that a variety of chemical and physiological cues in different species and sections of the GIT may change the absorption profile of MPs to leach out chemicals internalized within the particle as well as those bound to the external surface of the particle. Chemicals within MPs often include additives such as flame retardants and bisphenols which are added to plastics to achieve certain properties (Chen, Allgeier, et al, 2019; Gunaalan et al, 2020; Sun, Nan, et al, 2019), while externally bound chemicals may include a variety of pharmaceuticals, fertilizers, pesticides and heavy metals encountered and bound in the freshwater environment (Atugoda et al, 2020; Bradney et al, 2019; Caruso, 2019; Guan et al, 2020). MPs may therefore vector or leach a range of different chemicals into fish and other biota that then produce effects according to factors such as the type of chemical, concentration, where the chemical is released within the GIT and whether the chemicals are taken up across the intestinal barrier (Bradney et al, 2019; Gunaalan et al, 2020).…”

Section: Occurrence Of Mps In Freshwater Fishes: From Sources To Egestionmentioning

confidence: 99%

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

et al. 2021

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Microplastics (MPs) are small, plastic particles of various shapes, sizes and polymers.Although well studied in marine systems, their roles and importance in freshwater environments remain uncertain. Nevertheless, the restricted ranges and variable traits of freshwater fishes result in their communities being important receptors and strong bioindicators of MP pollution. Here, the current knowledge on MPs in freshwater fishes is synthesized, along with the development of recommendations for future research and sample processing. MPs are commonly ingested and passively taken up by numerous freshwater fishes, with ingestion patterns often related to individual traits (e.g. body size, trophic level) and environmental factors (e.g. local urbanization, habitat features). Controlled MP exposure studies highlight various effects on fish physiology, biochemistry and behaviour that are often complex, unpredictable, species-specific and nonlinear in respect of dose-response relationships.Egestion is typically rapid and effective, although particles of a particular shape and/ or size may remain, or translocate across the intestinal wall to other organs via the blood. Regarding future studies, there is a need to understand the interactions of MP pollution with other anthropogenic stressors (e.g. warming, eutrophication), with a concomitant requirement to increase the complexity of studies to enable impact assessment at population, community and ecosystem levels, and to determine whether there are consequences for processes, such as parasite transmission, where MPs could vector parasites or increase infection susceptibility. This knowledge will determine the extent to which MP pollution can be considered a major anthropogenic stressor of freshwaters in this era of global environmental change.

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Section: Occurrence Of Mps In Freshwater Fishes: From Sources To Egestionmentioning

confidence: 99%

Microplastics in freshwater fishes: Occurrence, impacts and future perspectives

et al. 2021

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“…It has been reported that MNPs are capable of serving as vectors for transporting hydrophobic organic microcontaminants such as polybrominated diethers (PBDs), polyfluorinated alkyls (PFAS), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), phthalates surfactants, personal care products (PCPs), pharmaceuticals (tetracycline, ciprofloxacin, sertraline, propranolol, and sulfamethoxazole) in terrestrial and aquatic environments Atugoda et al, 2020;Puckowski et al, 2021). The adhesion of these contaminants to microplastics in the environment is a function the high surface area to volume ratio and hydrophobicity of microplastic particles.…”

Section: Physisorption Chemisorption and Major Factors Governing Of Sorption Of Organic Contaminants To Micro (Nano) Plasticsmentioning

confidence: 99%

“…The adhesion of these contaminants to microplastics in the environment is a function the high surface area to volume ratio and hydrophobicity of microplastic particles. Furthermore, the degree of adsorption has been shown by various studies to depend on the polymeric properties of microplastics including polymer type, particle size, surface area, charge, crystallinity, compoundspecific factors, and environmental factors including pH, salinity, ionic strength, and dissolved organic matter (Li et al, 2018;Atugoda et al, 2020).…”

Section: Physisorption Chemisorption and Major Factors Governing Of Sorption Of Organic Contaminants To Micro (Nano) Plasticsmentioning

confidence: 99%

“…The microplastics-organic contaminants interaction is essential for predicting the fate and vector transport of microplastics in the environment. As a result, the sorbent-sorbent partitioning mechanism provides supporting information for determining the behavior of HOCs on microplastic surfaces, as well as their potential interactions (Atugoda et al, 2020;Fred-Ahmadu et al, 2020c). Organic micropollutant sorption onto micro (nano) plastics has been shown to be a function of plastic type as well as their properties .…”

Section: Introductionmentioning

confidence: 99%

“…Microplastic composition and properties and surface charge have also been shown to play important roles in regulating their ability to sorb organic contaminants (Wang et al, 2015;Zhang et al, 2018b). Furthermore, pH, ionic strength, salinity, sorbate concentration, and dissolved organic matter have been reported to play a significant role in the adsorption of HOCs onto microplastics Atugoda et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Physisorption and Chemisorption Mechanisms Influencing Micro (Nano) Plastics-Organic Chemical Contaminants Interactions: A Review

Agboola

Benson

2021

Front. Environ. Sci.

118

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Microplastics, which serve as sources and vector transport of organic contaminants in both terrestrial and marine environments, are emerging micropollutants of increasing concerns due to their potential harmful impacts on the environment, biota and human health. Microplastic particles have a higher affinity for hydrophobic organic contaminants due to their high surface area-to-volume ratio, particularly in aqueous conditions. However, recent findings have shown that the concentrations of organic contaminants adsorbed on microplastic surfaces, as well as their fate through vector distribution and ecological risks, are largely influenced by prevailing environmental factors and physicochemical properties in the aquatic environment. Therefore, this review article draws on scientific literature to discuss inherent polymers typically used in plastics and their affinity for different organic contaminants, as well as the compositions, environmental factors, and polymeric properties that influence their variability in sorption capacities. Some of the specific points discussed are (a) an appraisal of microplastic types, composition and their fate and vector transport in the environment; (b) a critical assessment of sorption mechanisms and major polymeric factors influencing organic contaminants-micro (nano) plastics (MNPs) interactions; (c) an evaluation of the sorption capacities of organic chemical contaminants to MNPs in terms of polymeric sorption characteristics including hydrophobicity, Van der Waals forces, π–π bond, electrostatic, and hydrogen bond interactions; and (d) an overview of the sorption mechanisms and dynamics behind microplastics-organic contaminants interactions using kinetic and isothermal models. Furthermore, insights into future areas of research gaps have been highlighted.

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