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Exploring Innovations in Microplastics Detection: A Comprehensive Methodological Review
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This review compares cutting-edge microplastic detection methods including hyperspectral imaging, nano-thermal analysis, and atomic force microscopy, evaluating their accuracy, efficiency, and applicability across different environments. Better detection tools are foundational to understanding the true scale of microplastic pollution and enabling the evidence-based regulations needed to protect public health.
This review highlights the latest advancements in microplastic (MP) detection techniques with focus on cutting-edge methods that enhance the precision, accuracy and efficiency of identifying MPs across diverse environments. The paper goes beyond prior studies that concentrate on singular techniques by offering a comparative evaluation of emerging MP detection methodologies, highlighting their cross-disciplinary applications and potential influence on regulatory policies. Improved detection methodologies contribute to more effective pollution monitoring and better enforcement of plastic waste regulations, thus enhancing public health initiatives by providing accurate data on MP contamination. Technological developments not only improve scientific understanding but also aid in shaping policy decisions by providing a strong foundation for policymakers to design evidence-based interventions that help in curbing MP pollution at local, national and global levels. The paper examines a range of analytical techniques for MPs detection including Fourier-transform infrared (FTIR) and Raman spectroscopy, scanning electron microscopy (SEM), thermal analysis and highlights advanced methods like hyperspectral imaging (HSI), nano-thermal analysis (Nano-TA) and Atomic Force Microscopy-Infrared Spectroscopy (AFM-IR), discussing their efficacy and limitations in identifying MPs across different environmental matrices. The review highlights the significant improvements these advanced techniques offer over traditional methods. AFM-IR and correlative SEM-Raman microscopy provide nanoscale imaging and detailed chemical analysis, while HSI and Nano-TA enable rapid, non-destructive assessment of MPs in situ. Despite these advancements, high operational costs, need for specialized expertise and challenges in analyzing complex samples persist. The integration of these advanced techniques marks a significant step forward in MP detection, offering enhanced capabilities for accurate and efficient analysis. However, further development is needed to address existing limitations, to standardize methods, improving the sensitivity and specificity of current techniques. Continued innovation and interdisciplinary collaboration are essential for advancing MP management strategies and mitigating their environmental and health impacts.
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