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dc.contributor.authorDePaola, Nicole
dc.date.accessioned2020-01-06T15:07:04Z
dc.date.available2020-01-06T15:07:04Z
dc.date.issued2019-12
dc.identifier.urihttp://hdl.handle.net/1951/70970
dc.description.abstractBisphenol A (BPA) is used to make plastics and has been found to be a xenoestrogen. Planaria (Girardia tigrina), regenerating flatworms, were exposed to BPA and deuterated BPA (D8-BPA). Phenotypic effects of BPA on the planaria were recorded during exposure and BPA was then extracted to quantify the amount absorbed by the flatworms. Deuterated BPA (D8-BPA) was used to distinguish added BPA from BPA already present in the organism from supply-chain contamination. A control experiment tested whether the multiple washes performed after incubation removed physisorbed BPA from planaria. Additional analysis was performed using high performance liquid chromatography (HPLC, reverse phase). Improvements in HPLC method to analyze BPA and D8-BPA resulted in better separation between BPA and D8-BPA peaks. Gas chromatography mass spectroscopy (GCMS) was used to quantify BPA/D8 BPA. It is concluded that planarian regeneration is negatively affected by exposure to 20 M concentrations of BPA/D8-BPA, planaria absorbed BPA and D8-BPA from solution, the washing method removed most physisorbed BPA, and decreasing the HPLC pump flow rate improved peak separation. This section describes studies done by other researchers to explore detrimental effects of BPA on humans, including miscarriage, infertility, obesity, and sexual dysfunction. The detrimental environmental effects of excessive plastic use, plastic alternatives, and solutions to reducing the damage of plastic are also described.en_US
dc.language.isoen_USen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/us/*
dc.subjectBiochemistryen_US
dc.subjectBiologyen_US
dc.subjectChemistryen_US
dc.subjectHigh Performance Liquid Chromatography (HPLC)en_US
dc.subjectPlanariaen_US
dc.subjectGirardia tigrinaen_US
dc.subjectPlasticen_US
dc.subjectBisphenol Aen_US
dc.subjectBPAen_US
dc.subjectEndocrine disruptoren_US
dc.subjectXenoestrogenen_US
dc.subjectPlastic alternativesen_US
dc.titleThe dangers of plasticen_US
dc.typeThesisen_US


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Attribution-NonCommercial-NoDerivs 3.0 United States
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 United States