Sequestration of Polystyrene Microplastics by Jellyfish Mucus
| Autor: | Iztok Dogsa, Živa Lengar, Ana Rotter, David Stopar, Katja Klun |
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| Jazyk: | angličtina |
| Předmět: |
sluz
Jellyfish Microplastics microplastics Science Ocean Engineering QH1-199.5 010501 environmental sciences Aquatic Science engineering.material polystyrene meduze Oceanography udc:504.5:593.7 01 natural sciences mikroplastika Suspension (chemistry) 03 medical and health sciences chemistry.chemical_compound fluids and secretions mucus biology.animal Confocal laser scanning microscopy 030304 developmental biology 0105 earth and related environmental sciences Water Science and Technology 0303 health sciences Global and Planetary Change mikroskopija biology General. Including nature conservation geographical distribution jellyfish respiratory system Mucus 6. Clean water chemistry 13. Climate action Polystyrene microsphere Environmental chemistry viscosity engineering microscopy Polystyrene Biopolymer viskoznost polistiren |
| Zdroj: | Frontiers in marine science, vol. 8, no. 690749, 2021. Frontiers in Marine Science, Vol 8 (2021) |
| ISSN: | 2296-7745 |
| DOI: | 10.3389/fmars.2021.690749 |
| Popis: | The worldwide microplastics pollution is a serious environmental and health problem that is currently not effectively mitigated. In this work we tested jellyfish mucus as a new bioflocculent material capable of sequestration of polystyrene microplastics in aqueous environments. Mucus material was collected from different jellyfish species and was used to trap fluorescently tagged polystyrene microspheres. The efficiency of removal was tested using varying concentrations of microplastics and mucus. The interaction between the microplastics and mucus was determined by viscosity measurements and confocal laser scanning microscopy. Different mucus preparation methods were also tested: freshly prepared, mechanically sheared, freeze-thawed, freeze-dried, and hydrolyzed mucus. The results demonstrate that jellyfish mucus can efficiently sequester polystyrene microplastics particles from the suspension. The fraction of the removed microplastics was highest with freshly prepared mucus and decreased with freeze-thawing and freeze-drying. The mucus ability to sequester microplastics was completely lost in the hydrolyzed mucus. The results imply that the intact jellyfish mucus has the potential to be used as a biopolymer capable of removing microplastics material. |
| Databáze: | OpenAIRE |
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