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Microplastic Sensors Based on Tilted Fiber Bragg Grating and Engineered Peptides
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This paper presents a fiber optic sensor modified with a polystyrene-binding peptide for detecting microplastics in water. Peptide-based biosensors offer a highly selective approach for detecting specific types of microplastics, potentially enabling real-time water quality monitoring.
This paper presents a microplastic sensor that utilizes a tilted fiber Bragg grating surface plasmon resonance modified with a polystyrene-binding peptide. The sensor design includes an tilted fiber Bragg grating surrounded by a 50 nm thick gold layer. The PSBP, modified with thiol, self-assembles on the gold surface through a Au-S bond. This peptide biosensor is capable of specifically binding to polystyrene microplastics through hydrophobic. It can effectively detect PS microplastics in water within the concentration range of 1 mg/ml to 1 $\mu$g/ml.
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Hydrophobic peptide biosensors engineered to bind polystyrene and polypropylene surfaces were demonstrated as a rapid detection method for microplastics, offering high specificity for two of the most commonly distributed plastic polymer types in marine environments.
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Researchers developed a single peptide-based sensor that can identify different water-soluble synthetic polymers in water by detecting patterns of optical signals. Water-soluble plastics are an emerging pollution concern in wastewater. This type of sensor could help monitor plastic polymer contamination in water systems where conventional microplastic detection methods may not work.
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This review explores the emerging use of specially designed peptides that can bind to specific types of plastic for detecting microplastics in water. Researchers describe how advances in protein engineering and computational design have enabled the creation of peptides that selectively recognize different polymer surfaces. The peptide-based approach offers a promising new detection method that could complement existing techniques for monitoring microplastic pollution in aquatic environments.
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Researchers created a portable detection system using fluorescence-tagged peptides and electrochemical sensors to identify polystyrene microplastics in different water types. The method could detect microplastics across a wide size range and in various water conditions, including seawater and tap water. This on-site detection approach could make microplastic monitoring faster and more accessible compared to traditional laboratory methods.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.