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Microplastic Detection and Quantification with Biosensing Techniques
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This review examines emerging biosensor technologies for detecting and quantifying microplastics in food and environmental samples, comparing electrochemical, optical, and biological sensing approaches as faster and cheaper alternatives to conventional spectroscopy. Improved detection methods are critical for understanding true human exposure levels and setting meaningful safety thresholds for microplastics in drinking water and food.
Microplastics (MPs), particles ranging from 1 μm to 5 mm, have risen to prominence as significant pollutants on a global scale, driven by the widespread use of plastics in our daily lives. Their ability to transition from the micro- to the nanoscale (less than 1 μm) allows them to permeate every corner of the natural world, leading to ecological imbalances and global crises. Despite their pervasive presence, the absence of a standardized method for effectively separating and analyzing microplastics in real food or environmental samples remains a critical challenge. Consequently, there is a pressing need to devise a simple, rapid, cost-effective, and accurate method, capable of precisely gauging the degree of MP contamination. Conventional detection methods have several limitations in the detection of microplastics, as they are not always efficient in terms of cost, speed, on-site capabilities, or real-time analysis. In this particular context, biosensors have demonstrated remarkable efficacy in enabling accurate, on-site, and real-time detection of MPs. This chapter covers basic topics with an emphasis on the detection and measurement of MPs utilizing biosensing technology.
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This review covers new sensing technologies, including electrochemical and optical biosensors, being developed to detect microplastics and nanoplastics more quickly and affordably than current lab methods. Better detection tools are essential because understanding how much plastic pollution exists in the environment and in our bodies is the first step toward addressing the health risks.
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This review covers new biosensor technologies being developed to detect microplastics and nanoplastics more quickly and accurately than current methods. Better detection tools are important because they could enable faster monitoring of plastic contamination in water, food, and the environment, helping researchers and regulators better protect human health.
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This review examines how biosensors -- devices that use biological materials to detect pollutants -- could provide faster and cheaper monitoring of microplastics and heavy metals in the environment. Current methods for detecting microplastics are expensive and time-consuming, so biosensor technology could help track contamination more widely. Better environmental monitoring is an important step toward reducing the microplastic exposure that ultimately affects human health.
Field-Portable Microplastic Sensing in Aqueous Environments: A Perspective on Emerging Techniques
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This review examines emerging field-portable technologies for detecting and quantifying microplastics in aqueous environments, discussing optical, spectroscopic, and electrochemical sensing approaches. Researchers identify the lack of a standardized, rapid on-site method as the primary bottleneck limiting accurate real-world microplastic monitoring.
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Tiny plastic particles are everywhere in our environment, and this review rounds up the latest tools scientists are building to detect them faster and more accurately—from light-based sensors to electronic and biology-based detectors. The big takeaway is that portable electrochemical devices (think small, sensor-based gadgets) currently show the most promise for real-world testing of water, food, or other samples on the spot. This matters because better detection tools are the first step toward understanding how much plastic we're actually exposed to and what it might mean for our health.
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