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Papers
3 resultsShowing papers from Fundação de Apoio à Universidade Federal de São Paulo
ClearPhotosynthetic modulation and oxidative stress in Raphidocelis subcapitata exposed to environmentally relevant concentrations of a ketoconazole based commercial formulation
Researchers exposed the freshwater microalga Raphidocelis subcapitata to environmentally relevant concentrations of the antifungal drug ketoconazole, finding a dual toxicity response where low concentrations stimulated photosynthesis while higher concentrations triggered oxidative stress and morphological changes.
Degradation of supposedly biodegradable polymers in a real estuarine environment
Researchers tested the real-world degradation of supposedly biodegradable polymer bags in an estuarine environment over 180 days. The study found that bags made of PLA combined with PBAT and starch showed the most consistent degradation, while polyethylene bags with oxo-biodegradable additives and plain polyethylene showed minimal breakdown, questioning the effectiveness of some biodegradable alternatives in natural settings.
Oyster as sentinels of recent microplastic contamination: Insights from a transplant experiment
Researchers used oyster transplantation experiments to study how microplastics accumulate and are excreted in sentinel organisms under field-realistic conditions. The study found that bivalves can serve as effective biomonitors of recent microplastic contamination in coastal ecosystems. The findings help fill knowledge gaps about the dynamics of microplastic uptake and clearance in marine filter feeders.