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• W4387261625 endingPage "132695" @default.
• W4387261625 startingPage "132695" @default.
• W4387261625 abstract "Nanoplastics exposure poses a significant threat to the environment and human health, and accurate measurement of nanoparticles in aqueous solutions remains challenging. In this work, we synthesized the cationic fluorescent probe 4-[1-Cyano- 2-[4-(Diethylamino)-2-hydroxyphenyl]ethenyl]-1-ethylpyridinium (PCP) through a straightforward procedure for the rapid and accurate detection and labeling of nanoplastics in aqueous solutions. PCP binds to nanoplastics through electrostatic and hydrophobic interactions with restricted intramolecular rotation and exhibits enhanced fluorescence emission. Using carboxylation-modified polystyrene nanoplastics as a model, PCP could accurately detect concentrations as low as 0.525 mg∙L-1 in aqueous solution and perform wash-free semi-quantitative direct observation. The method demonstrated good reproducibility and recovery in actual sample spiking experiments. In addition, PCP-labeled nanoplastics were successfully used to visualize the uptake and distribution of cells and Arabidopsis thaliana when exposed to different concentrations of nanoplastics. This work provides a simple and sensitive method for efficiently identify, track, and quantify nanoplastics without requiring additional pretreatment and complex instrumentation, making it an ideal tool for accurately quantifying nanoplastics in aqueous solutions and studying the biological interactions of nanoplastics. Nanoplastics are more susceptible to uptake by biological organisms due to their smaller size, and the ingestion and accumulation of nanoplastics pose serious health risks to humans and other organisms. This work presents a fluorescent probe for detecting and labeling nanoplastics in aqueous solutions to assess the concentration levels of nanoplastics in the environment and to monitor their distribution and migration in living organisms. The development of this method provides a rapid and convenient new tool for concentration analysis and toxicological assessment of nanoplastics." @default.
• W4387261625 created "2023-10-03" @default.
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• W4387261625 date "2024-01-01" @default.
• W4387261625 modified "2023-10-09" @default.
• W4387261625 title "A photoluminescence strategy for detection nanoplastics in water and biological imaging in cells and plants" @default.
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• W4387261625 doi "https://doi.org/10.1016/j.jhazmat.2023.132695" @default.
• W4387261625 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37804760" @default.
• W4387261625 hasPublicationYear "2024" @default.
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