Generation of nano- and micro-sized organic pollutant emulsions in simulated road runoff

Markiewicz, Anna; Strömvall, Ann-Margret Hvitt; Björklund, Karin; Eriksson, Eva

doi:10.1016/j.envint.2019.105140

Cited by 8 publications

(5 citation statements)

References 50 publications

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“…The enhanced C max and AUC values could be the effect of the enhanced SMEDDS formulation increasing the solubility and/or dissolving rate of PGL. Additionally, excipients such as Tween® 80 and Transcutol HP included in the SMEDDS formulation have been reported to inhibit P-gp and CYP 450 ( Al-Kandari et al, 2020 , Markiewicz et al, 2019 ) and thus promote intestinal absorption of PGL. The pharmacokinetic profile confirms the in vitro release results showing that pioglitazone of the suspension was primarily absorbed from the stomach which can be interpreted by the higher solubility of PGL in an acidic pH and the absence of overexpression of P-gp in the stomach.…”

Section: Discussionmentioning

confidence: 99%

Omega-3 fatty acid-based self-microemulsifying drug delivery system (SMEDDS) of pioglitazone: Optimization, in vitro and in vivo studies

Emad,

Sultana,

Aqil

et al. 2023

Saudi Journal of Biological Sciences

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Section: Discussionmentioning

confidence: 99%

Omega-3 fatty acid-based self-microemulsifying drug delivery system (SMEDDS) of pioglitazone: Optimization, in vitro and in vivo studies

Emad,

Sultana,

Aqil

et al. 2023

Saudi Journal of Biological Sciences

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“…Analysis of variance was conducted using a Zetasizer NANO S laser particle size analyzer (Malvern Instruments, UK). The measuring range of the device is from 0.3 nm to 10,000 nm [18].…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

Analysis of the nature of the composition substances of sour-milk dessert with plant-based fillers

Polishchuk

Kuzmyk²,

Осьмак³

et al. 2021

EEJET

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The nature and interaction of the constituent substances that make up the sour-milk dessert with plant-based fillers have been studied by the method of IR spectroscopy. This method is used to study the diverse nature of substances. The spectral range applied was in the range of 500–4,000 s -1. It was found that the intensity of functional groups absorption in the range of 2,500–3,500 s-1 is due to the valence vibrations of NH-, CH and S-H-groups, indicating the presence of free organic acids, aromatic substances. In addition, in the spectra of sour-milk dessert with plant-based fillers, an absorption intensity in the range of 1,470–1,335 s-1 is observed, which indicates the presence of soluble pectin. Proteins characteristics in the samples are observed at absorption in the range of 3,300–3,500 cm -1, which is due to the valence vibrations of the N-H bond in the -NH2 groups. The use of fruits in the form of a freeze-dried powder together with milk protein concentrate in the technology of sour-milk desserts helps reduce the content of free moisture, hence a stable structure. Sour-milk dessert with plant-based fillers is a system consisting of particles of different dispersion, which will affect its physical and chemical properties. In particular, there is a slight coarsening of whey proteins and redistribution between particles in the range of 1–10 nm and 1–100 nm. The use of plant-based fillers in the form of a freeze-dried powder in the technology of sour-milk desserts would not only improve its physical and chemical properties but also could make it possible to enrich the product with minerals. The mineral composition of the sour-milk dessert is marked by the calcium content (122 mg/100 g), potassium (97 mg/100 g), phosphorus (82 mg/100 g), sodium (50 mg/100 g), and sulfur, iron.

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“…A similar laboratory study to evaluate the efficiency of PH removal by rain gardens under controlled laboratory conditions was conducted by the authors of [16]. The experiment was carried out on two prototypes of modified rain garden structures with a soil substrate based on a specially developed mineral-organic mixture and a drainage channel.…”

Section: Analysis Of the Leachate From The Experimental Columnsmentioning

confidence: 99%

“…Some types of OPs (PHs, phthalates, and polycyclic aromatic hydrocarbons (PAHs)) are hydrophobic, which allows them to be removed from the aqueous phase by simple methods, such as particle sedimentation [15]. There are also hydrophilic-hydrophobic compounds, such as diesel hydrocarbons, alkylphenols (APs) and their ethoxylates (APEOs), diesel fuel with APs and APEOs, phthalates, and used engine oil components, which can form nano-and micro-dispersed emulsions in rainwater [16]. Therefore, when choosing a stormwater treatment method, it is also advisable to take into account that such waters contain colloids, truly dissolved components, and emulsions of OPs.…”

Section: Introductionmentioning

confidence: 99%

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Behaviour and Peculiarities of Oil Hydrocarbon Removal from Rain Garden Structures

Kravchenko,

Trach,

Trach

et al. 2024

Water

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The expansion of impervious areas in the context of climate change leads to an increase in stormwater runoff. Runoff from roads, petrol stations, and service stations is the most common form of unintentional release of petroleum hydrocarbons (PHs). Rain gardens are an important practice for removing PHs from stormwater runoff, but little data exist on the removal efficiency and behaviour of these substances within the system. The main objective of the study is to investigate the effectiveness of rain gardens in removing pollutants such as diesel fuel (DF) and used engine oil (UEO) in a laboratory setting, as well as to study the behaviours of these pollutants within the system. Eight experimental columns (7.164 dm3) were packed with soil (bulk density 1.48 kg/dm3), river sand (1.6 kg/dm3), and gravel. Plants of the Physocarpus opulifolia Diabolo species were planted in the topsoil to study their resistance to PHs. For 6 months, the columns were watered with model PHs followed by simulated rain events. The concentrations of PHs in the leachate and soil media of the columns were determined by reverse-phase high-performance liquid chromatography (RP-HPLC). The results of HPLC indicated the absence of UEO and DF components in the leachates of all experimental columns, which suggested 100% removal of these substances from stormwater. The chromatography results showed that 95% of the modelled PHs were retained in the surface layer of the soil medium due to the sorption process, which led to a change in hydraulic conductivity over time. Recommendations are proposed to increase the service life of rain gardens designed to filter PHs from stormwater.

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Generation of nano- and micro-sized organic pollutant emulsions in simulated road runoff

Cited by 8 publications

References 50 publications

Omega-3 fatty acid-based self-microemulsifying drug delivery system (SMEDDS) of pioglitazone: Optimization, in vitro and in vivo studies

Omega-3 fatty acid-based self-microemulsifying drug delivery system (SMEDDS) of pioglitazone: Optimization, in vitro and in vivo studies

Analysis of the nature of the composition substances of sour-milk dessert with plant-based fillers

Behaviour and Peculiarities of Oil Hydrocarbon Removal from Rain Garden Structures

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