Journal
JOURNAL OF HAZARDOUS MATERIALS ADVANCES
Volume 8, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.hazadv.2022.100175
Keywords
Microplastic; Nanoplastic; Cytotoxicity; Health effect; Machine learning
Categories
Funding
- Science Foundation Ireland (SFI)-Irish Research Council Pathway Programme [21/PATH-S/9290]
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This study developed a predictive modelling framework for cytotoxicity of micro-and nanoplastics (MNPs) using machine learning approaches. A decision tree ensemble classifier was built based on 1824 sample points and 9 features. The research identified key features that can effectively predict the toxic properties of MNPs. The findings have implications for improving experimental design and understanding the health issues related to MNPs.
A growing number of articles have been reported to investigate health consequences of micro-and nanoplastics (MNPs) exposure, but no coherent images have been achieved due to the incomparability between studies, the complexity and heterogeneity of the existing toxicity data of MNPs. Herein, this work developed a predictive modelling framework for the cytotoxicity of MNPs using classification-based machine learning approaches. A literature search led to 1824 sample points represented by 9 features describing physicochemical properties of MNPs, the cell-related attribute and experimental factors. The decision tree ensemble classifier built from all features (DTE1) showed strong predictive ability with an accuracy of 0.95, recall and precision of both 0.86. Feature selection was subsequently performed to identify the key ingredients that dominated the toxic proper-ties of MNPs. A simplified classifier developed from 6 influencing features demonstrated a comparable model performance to DTE1. This result can help direct future studies toward better experimental design and report, facilitating the understanding of the pressing MNP-related health issues. With continuous integration of more representative research data, the developed model can be widely applicable to a spectrum of MNP cytotoxicity settings.
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