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https://doi.org/10.53941/mi.2025.100021
Zhang, X., Kanaras, A. G., & Yin, Y. Colorimetric Plasmonic Nanosensors for Environmental Pollution Monitoring. Materials and Interfaces. 2025, 2(2), 261–284. doi: https://doi.org/10.53941/mi.2025.100021
Volume 2, Issue 2, 2025
Copyright (c) 2025 by the authors.
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Environmental pollution, particularly water contamination by heavy metals and organic pollutants, presents a critical global challenge requiring effective monitoring solutions. Colorimetric plasmonic nanosensors, primarily utilizing gold nanoparticles (AuNPs) due to their exceptional stability and tunable optical properties, offer a promising approach for rapid, cost-effective, and label-free pollutant detection. This review highlights recent advancements in AuNP-based colorimetric plasmonic nanosensors for environmental monitoring. We explore their fundamental sensing mechanisms and critically examine their applications in detecting a broad spectrum of waterborne contaminants, including heavy metals, inorganic species, and diverse organic pollutants. By showcasing the versatility and potential of these emerging technologies, this review emphasizes their significant contribution towards developing more efficient and accessible tools for mitigating environmental pollution and protecting public health.

Keywords:

nanosensor pollution surface plasmon resonance nanoparticle plasmonic coupling aggregation

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