Degradation of 17α-ethinylestradiol in aqueous solution by ozonation

Zhang, Xia; Chen, Pengyu; Wu, Feng; Deng, Nansheng; Liu, Jiantong; Fang, Tao

doi:10.1016/j.jhazmat.2005.10.026

Cited by 55 publications

(24 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The dose-dependent appearance of RFP-positive larvae at 3 DPE may reflect differential EE2 uptake by the fish during the early phase of exposure. On the other hand, the plateau of RFP induction at 6 DPE may be related to the rapid bioaccumulation of EE2 during the extended exposure period, which is consistent with previous reports that EE2 is highly resistant to biodegradation (Zhang et al, 2006;Aris et al, 2014). In addition to the induction efficiency, fluorescence microscopy analysis showed that the RFP intensity in the livers of the transgenic larvae was also positively correlated with EE2 dose, particularly at 3 DPE (Fig.…”

Section: Semi-quantitative Expression Of Transgenic Rfp During Exposusupporting

confidence: 90%

Expression Patterns of the chgH:rfp Transgene in Response to 17α-Ethinylestradiol (EE2) Exposure in Marine Medaka Oryzias dancena

Nam¹,

Cho²,

Kim³

2015

Fisheries and aquatic sciences

View full text Add to dashboard Cite

The functional utility of a transgenic marine medaka Oryzias dancena strain carrying the red fluorescent protein (RFP) gene driven by an endogenous choriogenin H (chgH) promoter was evaluated for its ability to detect waterborne 17α-ethinylestradiol (EE2), a synthetic estrogen derivative. The chgH:rfp transgenic marine medaka larvae showed an age-dependent tendency in the efficiency of EE2-mediated transgene expression, in which transgenic larvae older than 6 days post-hatching displayed a more effective response in their transgene expression to EE2 than did younger hatchlings. During experimental exposures to high concentrations of EE2 (200 to 1,000 ng/L), the transgenic responses in the hatchlings were broadly dose-and duration-dependent. With exposures using lower doses of EE2 (25, 50 and 100 ng/L), EE2-induced transgenic RFP was also observed in the transgenic larvae, although the lower doses required exposure of longer duration. Under the EE2 exposure and microscope assay conditions used in our study, transgenic marine medaka larvae exhibited a similar degree of EE2-mediated RFP phenotype expression at various salinity levels (0, 15 and 30 ppt).

show abstract

Section: Semi-quantitative Expression Of Transgenic Rfp During Exposusupporting

confidence: 90%

Expression Patterns of the chgH:rfp Transgene in Response to 17α-Ethinylestradiol (EE2) Exposure in Marine Medaka Oryzias dancena

Nam¹,

Cho²,

Kim³

2015

Fisheries and aquatic sciences

View full text Add to dashboard Cite

show abstract

“…Furthermore, the η COD and η TOC at t f,DMP in the O 3 /UV cases generally have higher values compared with those in the O 3 cases, implying a difference in oxidation mechanisms. In addition, the pH value of the solution remarkably decreases from 5.60 to 2.50-3.51 in the early ozonation period (t < t f,DMP ), suggesting the generation of the acidic groups such as organic acids from the decomposition of DMP by ozonation [14].…”

Section: Decomposition Of Dmp During Ozonationmentioning

confidence: 98%

“…-, --, : ozone gas stream, experimental solution, isothermal water. Components: (1) oxygen cylinder, (2) drying tube, (3) ozone generator, (4) flow meter, (5) three-way valves, (6) stirrer, (7) ultra-violet (UV) lamps, (8) reactor, (9) sample port, (10) pH sensor,(11) circulation pump,(12) thermostat, (13) gas ozone detector,(14) KI solution, and (15) vent to hood.…”

mentioning

confidence: 99%

Decomposition of dimethyl phthalate in an aqueous solution by ozonation with high silica zeolites and UV radiation

Chen

Shang

Hsieh

2008

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…91 A degradação do estrogênio sintético 17α-etinilestradiol por ozonização também gerou semiquinonas como primeiros intermediários, que foram posteriormente oxidadas a ácidos orgânicos e dióxido de carbono. 92 Durante a degradação do bezafibrato por ozonização 61 foram detectados produtos gerados pelo ataque do radical hidroxila ao anel aromático. Posteriormente ocorreu a abertura do anel que não contém o átomo de cloro, devido à seletividade do ozônio, gerando sub-produtos como aldeídos e cetonas.…”

Section: Intermediários De Degradação De Fármacos Biodegradabilidadeunclassified

Degradação de fármacos residuais por processos oxidativos avançados

Melo¹,

Trovó²,

Bautitz³

et al. 2009

Quím. Nova

186

View full text Add to dashboard Cite

DegraDação De fármacos resiDuais por processos oxiDativos avançaDos silene alessandra santos melo, alam gustavo trovó, ivonete rossi Bautitz e raquel fernandes pupo nogueira* Departamento de Química Analítica, Instituto de Química de Araraquara, Universidade Estadual Paulista, CP 355, 14801-970 Araraquara -SP, BrasilRecebido em 19/12/07; aceito em 17/7/08; publicado na web em 5/12/08 DEGRADATION OF RESIDUAL PHARMACEUTICALS BY ADVANCED OXIDATION PROCESSES. The concern about aquatic ecosystems and the potential risk of drinking water contamination by pharmaceuticals have stimulated the study of processes for the efficient degradation of these contaminants, since the conventional treatment have been inefficient on that purpose. The advanced oxidation processes (AOPs) appear as viable alternatives due to their efficiency on the degradation of different classes of organic contaminants. This review presents an overview of the main AOP (O 3 , H 2 O 2 /UV, TiO 2 /UV, Fenton and photo-Fenton) which have been applied to the degradation of different pharmaceuticals. The main results obtained, intermediates identified and toxicity data are presented.

show abstract

Degradation of 17α-ethinylestradiol in aqueous solution by ozonation

Cited by 55 publications

References 33 publications

Expression Patterns of the chgH:rfp Transgene in Response to 17α-Ethinylestradiol (EE2) Exposure in Marine Medaka Oryzias dancena

Expression Patterns of the chgH:rfp Transgene in Response to 17α-Ethinylestradiol (EE2) Exposure in Marine Medaka Oryzias dancena

Decomposition of dimethyl phthalate in an aqueous solution by ozonation with high silica zeolites and UV radiation

Degradação de fármacos residuais por processos oxidativos avançados

Contact Info

Product

Resources

About