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June 12, 2026Applied Water ScienceOpen Access

Biological aging of polyethylene and polystyrene microplastics by Chlorella vulgaris biofilm: enhanced malachite green adsorption on polystyrene

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Authors

ANAfsaneh Esmaeili NasrabadiZBZiaeddin Bonyadi

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Overview

Randomized trial investigates the impact of Chlorella vulgaris biofilm on microplastic dye adsorption, indicating significant enhancement for polystyrene.

Key Points

  • This research aims to explore how biofilm formation by Chlorella vulgaris alters the properties of polyethylene and polystyrene microplastics and their dye adsorption capacities.
  • Evaluated biofilm formation on polyethylene and polystyrene microplastics using Chlorella vulgaris.
  • Measured physicochemical properties of bio-aged polystyrene after biofilm removal using hydrogen peroxide.
  • Conducted adsorption experiments to assess malachite green dye uptake on bio-aged polystyrene.
  • Biofilm-coated polystyrene showed increased chlorophyll and EPS levels, reducing size and enhancing surface charge negativity (−45.6 mV to −48.73 mV).
  • Malachite green adsorption capacity increased from 4.1% for virgin polystyrene to 38.3% for bio-aged polystyrene at 10 mg/L within 90 minutes.

Cite This Study

Nasrabadi et al. (2026) studied this question.

synapsesocial.com/papers/6a2ba4a18101cf8926f0309ehttps://doi.org/10.1007/s13201-026-02884-0
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