Removal of sulfonamide antibiotics by oriented immobilized laccase on Fe3O4 nanoparticles with natural mediators

Shi, Lili; Ma, Fuying; Han, Yuling; Zhang, Xiaoyu; Yu, Hongbo

doi:10.1016/j.jhazmat.2014.06.070

Cited by 125 publications

(78 citation statements)

References 37 publications

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“…The masses of products 5, 7, 9 and 10 (Table 1) suggest that they were also coupling products between AS radicals and SMX (structure suggestion in Fig. S11, SI), as also proposed by Shi et al [29]. All these transformation products appeared rapidly during the first hour of reaction, linked Table 1 Retention time, molar mass and m/z of the parent compounds and the transformation products (TPs) detected by UPLC-MS during the laccase-mediated transformation of sulfamethoxazole (SMX) in presence of either acetosyringone (AS), syringaldehyde (SA) or ABTS, or isoproturon (IPN) in presence of ABTS.…”

Section: Transformation Products Formed In the Laccase-as-smx Systemsupporting

confidence: 73%

“…S2, SI). Recalcitrance of SMX to laccase oxidation was recently reported [29], although this compound was oxidized by crude Phanerochaete chrysosporium laccase extract in another study [30], possibly due to the presence of other oxidative enzymes or mediators in the extracted solution.…”

Section: Oxidation Of Ipn and Smx With Various Mediatorsmentioning

confidence: 77%

“…Products 4-5 and 7-10 were observed only when SMX was present. Product 8, with a mass of 403 g mol −1 and UV-vis absorption spectrum maxima at 200, 314 and 405 nm, was identified based on similar studies [29,33] as a coupling product between DMBQ and SMX (Fig. 3B).…”

Section: Transformation Products Formed In the Laccase-as-smx Systemmentioning

confidence: 81%

“…Very few studies have been published on SMX oxidation by LMS. Recently, a few studies showed that SMX could be oxidized by laccase in presence of several mediators (1-hydroxybenzotriazole (HTB), syringic acid, AS and SA) [29,31,32]. Oxidation by LMS of other sulfonamides (sulfadimethoxine and sulfamonomethoxine) was also reported [33].…”

Section: Oxidation Of Ipn and Smx With Various Mediatorsmentioning

confidence: 99%

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Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects

Margot

Copin

Gunten

et al. 2015

Biochemical Engineering Journal

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a b s t r a c tThe potential of laccase-mediator systems (LMS) for the removal and detoxification of two wastewater micropollutants, the antibiotic sulfamethoxazole (SMX) and the herbicide isoproturon (IPN), was assessed. The influence of various parameters on micropollutant oxidation rates, such as pH, mediator, enzyme and pollutant concentrations, was investigated with three mediators: 2,2 -azinobis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), syringaldehyde (SA) and acetosyringone (AS). Both pollutants were completely transformed within a few hours in presence of laccase and ABTS, as well as, for SMX, in presence of AS or SA. The three mediators were consumed during the reaction (no catalytic reactions observed), at a ratio mediator/pollutant between 1.1 and 16 mol/mol. Faster oxidation kinetics were observed at lower pH values, but also higher mediator/pollutant ratios were required. Several transformation products were formed, including cross-coupled products. Product mixtures were always less toxic to algae than untreated pollutants. Finally, a kinetic model that could explain the experimental observations was established. Based on the findings in this study LMS appears to be a promising option to treat concentrated and potentially toxic industrial effluents.

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Section: Transformation Products Formed In the Laccase-as-smx Systemsupporting

confidence: 73%

Section: Oxidation Of Ipn and Smx With Various Mediatorsmentioning

confidence: 77%

Section: Transformation Products Formed In the Laccase-as-smx Systemmentioning

confidence: 81%

Section: Oxidation Of Ipn and Smx With Various Mediatorsmentioning

confidence: 99%

See 2 more Smart Citations

Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects

Margot

Copin

Gunten

et al. 2015

Biochemical Engineering Journal

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“…Low level of antibiotics promotes the growth of bacteria (3) and produces antibiotic resistance bacteria gens. As a result, remediation and quantitation of these compounds is necessary, and a great number of methods have been introduced in this regard (4)(5)(6)(7)(8). Chromatographic techniques have been extensively used to determine sulfonamides mixture in wastes and during the remediation process.…”

Section: Introductionmentioning

confidence: 99%

Synergic Effect of Sulfacetamide and Sulfadiazine in High Performance Liquid Chromatographic Determination of Their Mixture

Ramezani

Afsharian

2017

Jentashapir J Health Res

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Background: Data accuracy in analytical determination is of prime importance. Antibiotic levels are usually obtained in mixtures using chromatographic techniques. Thus, evaluation of data accuracy in mixtures seems necessary. Objectives: The aim of this study was to show how the figure of merits for high performance liquid chromatographic (HPLC) determination of sulfacetamide and sulfadiazine changes, while injecting their mixture compared to those injected individually. Methods: Standard solutions of the mixture of 2 selected sulfonamides as well as each individual solution were injected on ODS2

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Improving catalytic activity of laccase immobilized on the branched polymer chains of magnetic nanoparticles under alternating magnetic field

Xia

Wan

Liu

et al. 2017

J of Chemical Tech & Biotech

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Removal of sulfonamide antibiotics by oriented immobilized laccase on Fe3O4 nanoparticles with natural mediators

Cited by 125 publications

References 37 publications

Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects

Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects

Synergic Effect of Sulfacetamide and Sulfadiazine in High Performance Liquid Chromatographic Determination of Their Mixture

Improving catalytic activity of laccase immobilized on the branched polymer chains of magnetic nanoparticles under alternating magnetic field

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