The effect of microplastics on behaviors of chiral imidazolinone herbicides in the aquatic environment: Residue, degradation and distribution

Hu, Mingfeng; Hou, Ning; Li, Yuanfu; Liu, Yanmei; Zhang, Hui; Zeng, Dongqiang; Tan, Huihua

doi:10.1016/j.jhazmat.2021.126176

Cited by 25 publications

(4 citation statements)

References 40 publications

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“…743 Very recently, Tan et al carried out focused studies on the potential effects of microplastics on the enantioselective degradation and distributions in water, sediment, and water− sediment microcosms of the three herbicides imazamox, imazapic, and imazethapyr. 744 On this basis, it was found that microplastics could significantly increase herbicide persistence in water and sediment. While stereoselective degradation was not substantially found for the three herbicides, in the case of imazapic, enantioselective degradation in water containing microplastics was observed.…”

Section: Enantioselective Transformations In Naturementioning

confidence: 99%

“…Stereospecific degradation in soils may also be affected by organic carbon content and soil pH and texture . Very recently, Tan et al carried out focused studies on the potential effects of microplastics on the enantioselective degradation and distributions in water, sediment, and water–sediment microcosms of the three herbicides imazamox, imazapic, and imazethapyr . On this basis, it was found that microplastics could significantly increase herbicide persistence in water and sediment.…”

Section: Trends In Enantioselective Recognition In Natural and Synthe...mentioning

confidence: 99%

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Recognition in the Domain of Molecular Chirality: From Noncovalent Interactions to Separation of Enantiomers

Peluso

Chankvetadze

2022

Chem. Rev.

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It is not a coincidence that both chirality and noncovalent interactions are ubiquitous in nature and synthetic molecular systems. Noncovalent interactivity between chiral molecules underlies enantioselective recognition as a fundamental phenomenon regulating life and human activities. Thus, noncovalent interactions represent the narrative thread of a fascinating story which goes across several disciplines of medical, chemical, physical, biological, and other natural sciences. This review has been conceived with the awareness that a modern attitude toward molecular chirality and its consequences needs to be founded on multidisciplinary approaches to disclose the molecular basis of essential enantioselective phenomena in the domain of chemical, physical, and life sciences. With the primary aim of discussing this topic in an integrated way, a comprehensive pool of rational and systematic multidisciplinary information is provided, which concerns the fundamentals of chirality, a description of noncovalent interactions, and their implications in enantioselective processes occurring in different contexts. A specific focus is devoted to enantioselection in chromatography and electromigration techniques because of their unique feature as “multistep” processes. A second motivation for writing this review is to make a clear statement about the state of the art, the tools we have at our disposal, and what is still missing to fully understand the mechanisms underlying enantioselective recognition.

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Section: Enantioselective Transformations In Naturementioning

confidence: 99%

Section: Trends In Enantioselective Recognition In Natural and Synthe...mentioning

confidence: 99%

Recognition in the Domain of Molecular Chirality: From Noncovalent Interactions to Separation of Enantiomers

Peluso

Chankvetadze

2022

Chem. Rev.

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“…MPs are a new global environmental pollutant, widely distributed in oceans, rivers, lakes, sediments, soils, and other environmental media (Fiore et al 2022, Hu et al 2021, Shen et al 2018, and are even found in polar areas (Bergmann et al 2019, Ding et al 2023. MPs have also entered the food chain (Wang et al 2021a).…”

Section: Introductionmentioning

confidence: 99%

Adsorption properties and mechanism of Cu(Ⅱ) on virgin and aged microplastics in the aquatic environment

Hu,

Xiao,

Jiang

et al. 2023

Preprint

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Microplastics (MPs) bind to heavy metals in the aquatic environment and move into groups as carriers. They are prone to aging due to UV irradiation, which affects their adsorbability and mechanisms. The physicochemical properties Polyamide ( PA ) and polylactic acid ( PLA ) MPs were characterized. The impact and mechanism of UV aging on the adsorption of typical Cu(II) contaminants by MPs were investigated. The findings demonstrated that UV aging increased the specific surface area (SBET) and amount of oxygen-functional groups, decreased crystallinity, and generated pits on superficies of the MPs. Before and after aging, the adsorption behavior of the MPs on Cu(II) complied with the pseudo-second-order and Langmuir isotherm models. The primary adsorption processes, which were predominantly single-layer chemical reactions, were liquid-film and intra-particle diffusion. Compared to virgin MPs, the aged MPs had a higher adsorbability, which was primarily explained by the electrostatic attraction and complexation of the oxygen-functional groups with Cu(II). Cu(Ⅱ) adsorption by MPs was significantly affected by pH and salinity. At pH 5, the maximum adsorbability was noted, and increasing salinity reduced the MPs' ability to bind Cu(II). The equilibrium Cu(Ⅱ) adsorbability and MPs dosage were negatively correlated. These findings provide a scientific foundation for ecological environment risk assessment when MPs coexist with heavy metals.

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“…Weed control in green beans preferably utilizes post-emergence herbicides rather than pre-emergence [3]. The excessive use of herbicides has been reported to have significant negative impacts on the environment, including water and soil quality, and biodiversity [4][5][6]. Furthermore, determination of the minimum doses for optimum control [7,8] and critical periods [9] is very important for reducing herbicide use, as part of integrated weed management systems.…”

Section: Introductionmentioning

confidence: 99%

Determination of Minimum Doses of Imazamox for Controlling Xanthium strumarium L. and Chenopodium album L. in Bean (Phaseolus vulgaris L.)

Gürbüz

Yentürk

2022

Agronomy

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This study was conducted to investigate the minimum doses of the imazamox active ingredient (ai) that provide satisfactory efficacy (>90%) against fat hen (Chenopodium album L.) and common cocklebur (Xanthium strumarium L.). These two weeds are among the most troublesome weeds of bean fields. The minimum dose studies were carried out separately in the 2–4 and 6–8 true leaf stages of both weeds. The experiments were carried out in pots under greenhouse conditions. The experiments were repeated three times. In the first two experiments, the recommended dose of imazamox (100%) together with 75%, 50% and 25% doses were applied to the weeds during the above-mentioned leaf stages. Some pots were left untreated for control. In the third experiments, 12.50% and 6.25% of the recommended doses were also tested. Plant height and the number of leaves were recorded on the 1st, 3rd, 5th, 7th, 14th, 21st and 28th days following the herbicide application. As a result of the studies, it was determined that nearly half the recommended dose (48.18 g ai/da) provides 90% success in the control of common cocklebur (X. strumarium) when applied at the 2–4 true leaf stages, while a lower dose (36.11 g ai/da) is required for obtaining the same control when applied at the 6–8 true leaf stages. For the fat hen (C. album), only a 17.69 g ai/da application dose was found to provide 90% control at the period of 2–4 true leaves, while 21.21 g ai/da was noted to provide 90% control when applied at the 6–8 true leaf stage. The results suggest that the increase in leaf area reduces the imazamox requirement for the control of X. strumarium.

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The effect of microplastics on behaviors of chiral imidazolinone herbicides in the aquatic environment: Residue, degradation and distribution

Cited by 25 publications

References 40 publications

Recognition in the Domain of Molecular Chirality: From Noncovalent Interactions to Separation of Enantiomers

Recognition in the Domain of Molecular Chirality: From Noncovalent Interactions to Separation of Enantiomers

Adsorption properties and mechanism of Cu(Ⅱ) on virgin and aged microplastics in the aquatic environment

Determination of Minimum Doses of Imazamox for Controlling Xanthium strumarium L. and Chenopodium album L. in Bean (Phaseolus vulgaris L.)

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