Removal of phenol and Bisphenol A by immobilized Laccase on poly (Acrylonitrile-co-Styrene/Pyrrole) nanofibers

Functionalized Materials as a Versatile Platform for Enzyme Immobilization in Wastewater Treatment

“…However, in this case, the polymer was treated with hydrazine to introduce amidrazone groups, which act as nucleophilic sites suitable for cyanuric chloride activation and consequently improve the immobilization of the enzyme. Other investigations concern the enzymatic oxidative polymerization of phenol and bisphenol catalyzed by laccase enzyme immobilized on poly(acrylonitrile-co-styrene/pyrrole) nanofibers (AN-co-ST/Py) [94]. Interesting studies are reported by Liu et al [95], who proposed a novel immobilization technology in which laccase was immobilized on a 3D bioprinted matrix hydrogel.…”

Cross-Linked Chitosan/Gelatin Beads Loaded with Chlorella vulgaris Microalgae/Zinc Oxide Nanoparticles for Adsorbing Carcinogenic Bisphenol-A Pollutant from Water

“…BPA is mainly used in the manufacturing of polycarbonates and epoxy resins. 7 , 8 Also, it is used in thermal papers, can coatings, powder paints, dental fillings, and plastics. 9 , 10 BPA is identified as an endocrine disrupting chemical.…”

“…Therefore, EDC pollutants are a threat to human and animal health and the environment, and they should be cleansed from aqueous solution to avoid their severe health problems, including cancer. , Bisphenol-A (BPA) is an example of an EDC. BPA is mainly used in the manufacturing of polycarbonates and epoxy resins. , Also, it is used in thermal papers, can coatings, powder paints, dental fillings, and plastics. , BPA is identified as an endocrine disrupting chemical. To dispose such harmful compounds, advanced oxidation processes such as the Fenton reaction, ozonation, photocatalytic oxidation, and ultrasonic oxidation have been developed to oxidize and dispose of harmful phenolic compounds leading to the generation of hydroxyl radicals [OH • ]. − However, these technologies are time and money consuming and produce toxic byproducts .…”

“…BPA is mainly used in the manufacturing of polycarbonates and epoxy resins. , Also, it is used in thermal papers, can coatings, powder paints, dental fillings, and plastics. , BPA is identified as an endocrine disrupting chemical. To dispose such harmful compounds, advanced oxidation processes such as the Fenton reaction, ozonation, photocatalytic oxidation, and ultrasonic oxidation have been developed to oxidize and dispose of harmful phenolic compounds leading to the generation of hydroxyl radicals [OH • ]. − However, these technologies are time and money consuming and produce toxic byproducts . On the other hand, adsorption , is superior for removal of phenolic compounds due to its fast and convenient screening out of toxic phenolic contaminants, in addition to its low initial costs and trouble-free design …”

Co-Immobilization of Enzymes and Aptamers to create Self-Regenerating Ultrafiltration Membranes for Toxin Removal

“…12,13 Although this enzyme has shown promise for use in the treatment of water to remove small-molecule contaminants, using enzymes alone in solution has significant limitations, including non-reusability and subsequent removal of the enzyme from the water. [14][15][16] Similar to our aptamer system, enzymes can be appended to membranes, but reaction kinetics are not sufficient to enable full degradation of the toxin molecules as a solution is passed through the membrane. 15 However, we hypothesized that aptamer capture and enzyme degradation could work in tandem to enable efficient and convenient toxin removal, as the aptamers can rapidly capture the toxin molecules, which can then be released over time for subsequent degradation by the enzyme (Scheme 1).…”