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Luminous polystyrene upconverted nanoparticles to visualize the traces of nanoplastics in a vegetable plant
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Luminous polystyrene upconverted nanoparticles were used to track the uptake and accumulation of nanoplastics in edible plants, providing a novel visualization method that revealed specific tissues and pathways through which nanoplastics travel from soil through roots into above-ground plant structures.
This study introduces a novel method for visualizing the uptake and accumulation of polystyrene nanoplastics in edible plants using luminous upconverted nanoparticles.
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Researchers developed fluorescent carbon dot embedded polystyrene particles as a new tool for tracking how microplastics move through leguminous plants like mung beans. Using fluorescence microscopy, they observed that microplastics accumulated in the vascular regions and cell walls of the plants at concentrations above a certain threshold. The method offers a practical way to study how microplastics are taken up and distributed within edible crops grown in contaminated soil.
Determining the accumulation potential of nanoplastics in crops: An investigation of 14C-labelled polystyrene nanoplastic into radishes
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Researchers used a radioactive labeling technique to track nanoplastics as they moved through radish plants, demonstrating for the first time that these particles can accumulate in edible tissues. About 25% of the nanoplastics absorbed by the roots were found in the edible fleshy root, with another 10% reaching the shoots. The findings highlight a potential pathway for human exposure to nanoplastics through everyday vegetables.
Transport Dynamics and Physiological Responses of Polystyrene Nanoplastics in Pakchoi: Implications for Food Safety and Environmental Health
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Researchers tracked fluorescently labeled nanoplastics as they traveled through pakchoi (a leafy green vegetable), entering through the roots, moving up through the plant's water-transport system, and accumulating in the leaves. The nanoplastics caused oxidative damage and disrupted plant hormones, demonstrating a clear pathway by which plastic pollution in soil could enter the human food supply through everyday vegetables.
The review of nanoplastics in plants: Detection, analysis, uptake, migration and risk
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This review examines how nanoplastics are detected, analyzed, taken up by plants, and migrate through plant tissues from roots to edible parts. As nanoplastics are found in agricultural soils, understanding how they enter food crops is critical for assessing human dietary exposure.
Uptake and translocation of nanoplastics in mono and dicot vegetables
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Scientists exposed four different vegetable crops to fluorescent nanoplastics and tracked where the particles ended up in the plants. Nanoplastics were absorbed through the roots and transported to the stems and leaves of all plants tested, including tomatoes, radishes, and leafy greens. This confirms that food crops can take up nanoplastics from contaminated soil and deliver them to the parts of the plant that people eat.
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