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Peer-Reviewed Open Access Publication · ISSN: 2321-8681 · CC-BY 4.0 International

Open Access ISSN: 2321-8681 Volume: 12, Issue: 2, (July-December) 2025

Nanoparticle-Based Sensors for Real-Time Monitoring of Environmental Pollutants

Authors: Deep Narayan Maurya, Nitin Kumar Agrawal, Animesh Agarwal, Manish Saxena, Shama Parveen India
Correspondence: mauryadeep343@gmail.com
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Abstract

Environmental pollution has become a critical global challenge, requiring rapid, accurate, and continuous monitoring systems. Nanoparticle-based sensors have emerged as powerful tools for
real-time detection of pollutants due to their unique physicochemical properties, including high surface area, tunable optical behavior, and enhanced catalytic activity. In this study, the role of various nanoparticles—such as gold nanoparticles, iron oxide nanoparticles, carbon dots, quantum
dots, and graphene-based nanomaterials—in environmental sensing is reviewed. These nanomaterials interact with pollutants through adsorption, reduction, or surface binding,
causing detectable changes in color, fluorescence, conductivity, or magnetic response. Such signal variations enable highly sensitive and selective detection of heavy metals, industrial
dyes, pesticides, pharmaceutical residues, toxic gases, and micro-pollutants even at trace concentrations. The integration of nanomaterials with optical, electrochemical, and fluorescence-based sensing platforms further enhances detection speed and reliability. Overall, nanoparticle-based sensors represent a promising advancement for environmental monitoring by providing real-time, low-cost, portable, and ecofriendly solutions for pollution assessment and environmental protection.

Keywords; nanoparticle-based sensors, environmental
pollutants, real-time monitoring, heavy metal detection,
fluorescence and electrochemical sensing.

Journal Research and Reviews in Biotechnology and Biosciences
Peer Review Double-Blind Peer Reviewed
Publication Year 2025
Volume Volume: 12, Issue: 2, (July-December)
Page Range 123-132
DOI https://doi.org/10.5281/zenodo.17995287
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Deep Narayan Maurya, Nitin Kumar Agrawal, Animesh Agarwal, Manish Saxena, Shama Parveen (2025). Nanoparticle-Based Sensors for Real-Time Monitoring of Environmental Pollutants. Research and Reviews in Biotechnology and Biosciences, Volume: 12, Issue: 2, (July-December) , 123-132. https://doi.org/10.5281/zenodo.17995287
Deep Narayan Maurya, Nitin Kumar Agrawal, Animesh Agarwal, Manish Saxena, Shama Parveen, 2025. Nanoparticle-Based Sensors for Real-Time Monitoring of Environmental Pollutants. Research and Reviews in Biotechnology and Biosciences, Volume: 12, Issue: 2, (July-December) , pp. 123-132.
Deep Narayan Maurya, Nitin Kumar Agrawal, Animesh Agarwal, Manish Saxena, Shama Parveen. "Nanoparticle-Based Sensors for Real-Time Monitoring of Environmental Pollutants." Research and Reviews in Biotechnology and Biosciences Volume: 12, Issue: 2, (July-December) (2025): 123-132.
@article{rrbb_283_DeepNaray, title = {{Nanoparticle-Based Sensors for Real-Time Monitoring of Environmental Pollutants}}, author = {Deep Narayan Maurya, Nitin Kumar Agrawal, Animesh Agarwal, Manish Saxena, Shama Parveen}, journal = {Research and Reviews in Biotechnology and Biosciences}, issn = {2321-8681}, year = {2025}, volume = {Volume: 12, Issue: 2, (July-December) }, pages = {123-132}, doi = {https://doi.org/10.5281/zenodo.17995287} }
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