Cited by 1,021Microplastics and Plastic PollutionEnvironmental Toxicology and EcotoxicologyNanoparticles: synthesis and applications

Physical Adsorption of Charged Plastic Nanoparticles Affects Algal Photosynthesis

Bhattacharya, Priyanka, Lin, Sijie, Turner, James P., Ke, Pu Chun·2010·The Journal of Physical Chemistry C

Abstract

The physical adsorption of nanosized plastic beads onto a model cellulose film and two living algal species, Chlorella and Scenedesmus, has been studied. This adsorption has been found to ubiquitously favor positively charged over negatively charged plastic beads due to the electrostatic attraction between the beads and the cellulose constituent of the model and living systems. Such a charge preference is especially pronounced for Chlorella and Scenedesmus, whose binding with the plastic beads also depended upon algal morphology and motility, as characterized by the Freundlich coefficients. Using a CO 2 depletion assay, we show that the adsorption of plastic beads hindered algal photosynthesis, possibly through the physical blockage of light and air flow by the nanoparticles. Our ROS assay further indicated that plastic adsorption promoted algal ROS production. Such algal responses to plastic exposure may have implications on the sustainability of the aquatic food chain.

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Crossref · 10.1021/jp1054759

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  • Adsorption of nanoplastic particles by a freshwater algae lowered photosynthesis rates and promoted formation of reactive oxygen species or inhibited growth.

    “The adsorption of nanoplastic particles by a freshwater algae lowered photosynthesis rates and promoted the formation of reactive oxygen species 151 or inhibited growth.152”

    From The fate of plastic in the ocean environment – a minireview (2021) · cites this paper as [151]

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Authors
Bhattacharya, P., Lin, S., Turner, J. P., & Ke, P. C.
Affiliations
Clemson University (US)
Corresponding author
Ke, Pu Chun
Venue
The Journal of Physical Chemistry C
Published
2010-09-13
Volume
114
Issue
39
Pages
16556-16561
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2324374452
Cited by
1,021
References
23
Citations by year
2026: 79 · 2025: 103 · 2024: 123 · 2023: 154 · 2022: 140 · 2021: 113 · 2020: 112 · 2019: 75 · 2018: 49 · 2017: 24 · 2016: 14 · 2015: 16 · 2014: 3 · 2013: 4 · 2012: 7
FWCI
4.42
Type
journal article
Language
en
Open access
closed
Locations
The Journal of Physical Chemistry C (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
  • Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
Keywords
nanoplastics, physisorption, charged nanoparticles, electrostatic attraction, cellulose films, Chlorella, Scenedesmus, algal photosynthesis, reactive oxygen species, nanoparticle binding, algal motility, aquatic food chain, microplastic toxicity

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