Engineering and characterization of dehalogenase enzymes from Delftia acidovorans in bioremediation of perfluorinated compounds

Harris, Jackson D.; Coon, Collin M.; Doherty, Megan; McHugh, Eamon A.; Warner, Margaret C.; Walters, Conley L.; Orahood, Olivia M.; Loesch, Abigail E.; Hatfield, David C.; Sitko, John C.; Almand, Erin A.; Steel, J. Jordan

doi:10.1016/j.synbio.2022.02.005

Cited by 36 publications

(15 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…•− degraded PFOA, and its degradation rate and defluorination rate are reported to be 93.5% and 43.6%, respectively [144]. Wang and Zhang [145] studied the heterogeneous photocatalytic decomposition of PFOA by TiO 2 under 254 nm UV light. They found that the addition of oxalic acid could significantly accelerate the decomposition of PFOA.…”

Section: Other Chemical Methodsmentioning

confidence: 99%

A Review of Recent Advances in Detection and Treatment Technology for Perfluorinated Compounds

Wang

Guo

Sumita

et al. 2022

Water

View full text Add to dashboard Cite

Perfluorinated compounds (PFCs) are a novel type of environmental pollutant with a specific structure. PFCs have become a global concern due to their environmental persistence and biotoxicity properties. In this paper, we review the hazardous effects, detection technologies, and treatment methods of PFCs. We present the current status of PFCs pollution in water, the atmosphere, soil, and organisms. Moreover, we show that PFCs have toxic effects, such as hepatotoxicity, neurotoxicity, immunotoxicity, endocrine disruption, and reproductive and developmental toxicity. Six sample pretreatment techniques and four assays for PFCs are listed in this paper. This review focuses on the analysis of the treatment methods for PFCs, such as physical adsorption, microbial degradation, photochemical oxidation, electrochemical oxidation, acoustic oxidation, Fenton oxidation, and so on. We systematically analyze the treatment effects, removal mechanisms, and future directions of various technologies to provide support and suggestions for PFCs pollution control technologies.

show abstract

Section: Other Chemical Methodsmentioning

confidence: 99%

A Review of Recent Advances in Detection and Treatment Technology for Perfluorinated Compounds

Wang

Guo

Sumita

et al. 2022

Water

View full text Add to dashboard Cite

show abstract

“…It has been demonstrated that persistent pollutions like PFOA can be degraded via the Laccase-mediator system (Luo et al, 2018). A biological method for degradation would serve as a cheap and effective remediation (Harris et al, 2022). The use of enzymes to catalyze oxidative processes in soil remediation may have the potential to gain bene ts from the fact that enzyme sorption on soil can increase soil stability, making it more resistant to the uctuations of the surrounding environment than its free form.…”

Section: Bioremediationmentioning

confidence: 99%

Selecting sustainable approach for remediation of PFOA contaminated soils: AHP decision-making

Soltanian,

Salmak,

Baghdadi

et al. 2023

Preprint

View full text Add to dashboard Cite

Perfluorooctanoic acid (PFOA), which is an emerging persistent organic and one of the most commonly used PFAS, has a wide range of applications in industrial and production processes, and humans can regularly be exposed to it, so remediation of PFOA-contaminated soil is of great importance. This research presents the importance of PFOA soil pollution, soil remediation related technologies, their mechanisms and the order of remediation priority for three different hypothetical scenarios. Our comprehensive literature review shows that while some remediation methods have shown positive results, some, such as ultrasound, are ineffective in terrestrial ecosystems. Despite the fact that generally, the selection of a practical and compelling soil remediation technique depends on site assessments, our investigation and analysis by implementing an analytical hierarchy process and considering remediation time, environmental impacts, ecological impact, soil disturbance, post management, etc. as criteria, leads to the solidification/stabilization, oxidation, electrokinetic, phytoremediation and bioremediation as the most feasible and promising approaches for remediation of PFOA contaminated sites in our three suggested scenarios, but with different preferences. On the other hand, negative aspects of the electron beam, pulsed corona, and ball milling have placed them at the bottom of our selection list for field scale remediation.

show abstract

“…Superhydrophobic surfaces have unique wetting behaviors, including a high water contact angle (CA) of >150° and a low sliding angle (SA) of <10°. In recent decades, superhydrophobic coatings have attracted increasing attention in diverse fields including self-cleaning, − anti-icing, , corrosion resistance, , antibiofouling, , drag reduction, , and oil/water separation. , In order to prepare superhydrophobic coatings, the construction of micro-/nanostructures and the reduction of surface energy are essential. , Perfluorinated compounds with long carbon chains (such as perfluorooctanoic acid) are widely used for preparing superhydrophobic coatings due to their very low surface energy (∼10 mJ m –2 ), good weather resistance, heat resistance, and chemical stability . For example, Boban et al prepared superhydrophobic coatings with fluorinated polyurethane and fluorodecyl polyhedral oligomer polysiloxane .…”

Section: Introductionmentioning

confidence: 99%

“…12,13 In order to prepare superhydrophobic coatings, the construction of micro-/nanostructures and the reduction of surface energy are essential. 14,15 Perfluorinated compounds with long carbon chains (such as perfluorooctanoic acid) are widely used for preparing superhydrophobic coatings due to their very low surface energy (∼10 mJ m −2 ), 16 good weather resistance, 17 heat resistance, 18 and chemical stability. 19 For example, Boban et al prepared superhydrophobic coatings with fluorinated polyurethane and fluorodecyl polyhedral oligomer polysiloxane.…”

Section: ■ Introductionmentioning

confidence: 99%

Preparation of Food Grade Superhydrophobic Coatings Based on Attapulgite Nanorods

Dong

Ding

Wei

et al. 2023

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The superhydrophobic coating is a promising strategy to avoid liquid foods adhesion on the packages and thus significantly reduce their waste and environmental pollution. However, food-grade superhydrophobic coatings are yet limited, especially those with excellent performances. Herein, we report the preparation of food-grade superhydrophobic coatings by the combination of attapulgite (APT) natural nanorods, stearic acid (STA), and hydroxypropyl distarch phosphate (HDP) adhesive. First, a stock suspension was prepared by an esterification reaction between APT and STA. Then, the edible HDP primer and the STA@APT suspension were sequentially spray-coated onto substrates to form the HDP/STA@APT superhydrophobic coatings. The influences of the STA and APT concentrations on the wettability and morphology of the coatings were studied. Due to the hierarchical structure and low surface energy of the coatings assembled by APT and STA, the coatings show excellent static and dynamic superhydrophobicity and self-cleaning performance. In addition, the coatings exhibit good environmental stability and excellent antiadhesive properties toward various liquid foods and are also applicable to various frequently used food packing materials. Thus, we believe that superhydrophobic coatings have a broad application prospect for food packing.

show abstract

Engineering and characterization of dehalogenase enzymes from Delftia acidovorans in bioremediation of perfluorinated compounds

Cited by 36 publications

References 26 publications

A Review of Recent Advances in Detection and Treatment Technology for Perfluorinated Compounds

A Review of Recent Advances in Detection and Treatment Technology for Perfluorinated Compounds

Selecting sustainable approach for remediation of PFOA contaminated soils: AHP decision-making

Preparation of Food Grade Superhydrophobic Coatings Based on Attapulgite Nanorods

Contact Info

Product

Resources

About