Contemporary enzyme based technologies for bioremediation: A review

Sharma, Babita; Dangi, Arun Kumar; Shukla, Pratyoosh

doi:10.1016/j.jenvman.2017.12.075

Cited by 442 publications

(182 citation statements)

References 121 publications

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“…Many other targets are detectable by electrochemical enzyme-based biosensors, such as nitric oxide [11], cholesterol [12], urea [13], or influenza virus [14]. In the domain of the environment, bioremediation is a process that involves redox enzymes for cleanup [15]. Oxygenases and multicopper oxidases (MCOs) are, for example, very efficient in the degradation of chlorinated and phenolic compounds.…”

Section: The Applicative Issue: Use Of Redox Enzymes Immobilized On Smentioning

confidence: 99%

Controlling Redox Enzyme Orientation at Planar Electrodes

et al. 2018

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Abstract:Redox enzymes, which catalyze reactions involving electron transfers in living organisms, are very promising components of biotechnological devices, and can be envisioned for sensing applications as well as for energy conversion. In this context, one of the most significant challenges is to achieve efficient direct electron transfer by tunneling between enzymes and conductive surfaces. Based on various examples of bioelectrochemical studies described in the recent literature, this review discusses the issue of enzyme immobilization at planar electrode interfaces. The fundamental importance of controlling enzyme orientation, how to obtain such orientation, and how it can be verified experimentally or by modeling are the three main directions explored. Since redox enzymes are sizable proteins with anisotropic properties, achieving their functional immobilization requires a specific and controlled orientation on the electrode surface. All the factors influenced by this orientation are described, ranging from electronic conductivity to efficiency of substrate supply. The specificities of the enzymatic molecule, surface properties, and dipole moment, which in turn influence the orientation, are introduced. Various ways of ensuring functional immobilization through tuning of both the enzyme and the electrode surface are then described. Finally, the review deals with analytical techniques that have enabled characterization and quantification of successful achievement of the desired orientation. The rich contributions of electrochemistry, spectroscopy (especially infrared spectroscopy), modeling, and microscopy are featured, along with their limitations.

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Section: The Applicative Issue: Use Of Redox Enzymes Immobilized On Smentioning

confidence: 99%

Controlling Redox Enzyme Orientation at Planar Electrodes

et al. 2018

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“…Among the most used enzymes for degradation processes are the oxidoreductases (laccases, oxygenases and peroxidases) and hydrolases (carboxylesterases, cellulases, lipases, haloalkanedehalogenases and phosphotriesterases) . These enzymes have been studied in the degradation of different types of recalcitrant hazardous organic compounds such as phenols, amines, dyes, pesticides and pharmaceuticals; in many cases, they caused the complete degradation of these organic pollutants in aqueous media . Further, polymer materials (synthetic and natural) have been widely used as supports in bioremediation applications (Fig.…”

Section: Polymer Supports For Degradation Of Organic Pollutantsmentioning

confidence: 99%

“…This provides the possibility of reuse, easier product separation, extra stability towards denaturing conditions and prolonged stability in operational conditions . In this context, a large variety of polymers have been used as support matrices, generating novel preparations with excellent mechanical, thermal and biochemical properties, suitable for bioremediation uses . The versatility of polymers is thus key to obtaining the desired carrier as well as providing different properties to the immobilized enzyme according to the immobilization method used and the kind of polymer–enzyme interaction selected …”

Section: Introductionmentioning

confidence: 99%

Polymer supports for the removal and degradation of hazardous organic pollutants: an overview

Urbano

Bustamante

Palacio

et al. 2020

Polymer International

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Over the last decades, the presence of highly organic pollutants has increased and become an environmental problem that affects all forms of life. To solve or reduce this problem, multiple strategies have been proposed for the elimination and degradation of organic compounds in aqueous media. This review aims to revise and critically discuss the most recent advances in polymer supports to be used for the adsorption and degradation of organic pollutants. However, the greatest challenge with respect to this issue is the industrial scale‐up of bioremediation processes that allow the removal and degradation of compounds in a continuous and large‐scale manner. © 2019 Society of Chemical Industry

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“…However, recently discovered nanozymes of different types and their peroxidase mimetics could solve this problem. They may offer the potential bioremediation ability towards a broad range of toxic, carcinogenic and hazardous environmental pollutants at low cost (Sharma et al 2018). Biochar accompanies other carbon materials (e.g., carbon nanotubes, graphene derivatives, fullerenes, carbon nanohorns or carbon nanodots), where peroxidaselike activity has been detected recently and used, e.g., for methyl red, methyl orange, rhodamine B, methylene blue, orange II or phenolic compound degradation (Sun et al 2018).…”

Section: Potential Technological Application Of Biochar Peroxidase-limentioning

confidence: 99%

Biochars and their magnetic derivatives as enzyme-like catalysts mimicking peroxidases

Šafařı́k

Procházková

Baldíková

et al. 2020

Biochar

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Various materials have been extensively investigated to mimic the structures and functions of natural enzymes. We describe the discovery of a new catalytic property in the group of biochar-based carbonaceous materials, which are usually produced during biowaste thermal processing under specific conditions. The tested biochars exhibited peroxidase-like catalytic activity. Biomaterial feedstock, pyrolysis temperature, size of resulting biochar particles or biochar modification (e.g., magnetic particles deposition) influenced the peroxidase-like activity. Catalytic activity was measured with the chromogenic organic substrates N,N-diethyl-p-phenylenediamine (DPD) or 3,3′,5,5′-tetramethylbenzidine (TMB), in the presence of hydrogen peroxide. Magnetic biochar composite was studied as a complementary material, in which the presence of iron oxide particles enhances catalytic activity and enables smart magnetic separation of catalyst even from complex mixtures. The activity of the selected biochar had an optimum at pH 4 and temperature 32 °C; biochar catalyst can be reused ten times without the loss of activity. Using DPD as a substrate, K m values for native wood chip biochar and its magnetic derivative were 220 ± 5 μmol L −1 and 690 ± 80 μmol L −1 , respectively, while V max values were 10.1 ± 0.3 μmol L −1 min −1 and 16.1 ± 0.4 μmol L −1 min −1 , respectively. Biochar catalytic activity enabled the decolorization of crystal violet both in the model solution and the fish pond water containing suspended solids and dissolved organic matter. The observed biochar enzyme mimetic activity can thus find interesting applications in environmental technology for the degradation of selected xenobiotics. In general, this property predestines the low-cost biochar to be a perspective supplement or even substitution of common peroxidases in practical applications.

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Contemporary enzyme based technologies for bioremediation: A review

Cited by 442 publications

References 121 publications

Controlling Redox Enzyme Orientation at Planar Electrodes

Controlling Redox Enzyme Orientation at Planar Electrodes

Polymer supports for the removal and degradation of hazardous organic pollutants: an overview

Biochars and their magnetic derivatives as enzyme-like catalysts mimicking peroxidases

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