Batch analysis of microplastics in water using multi-angle static light scattering and chemometric methods

Choobbari, Mehrdad Lotfi; Ciaccheri, L.; Chalyan, Tatevik; Adinolfi, Barbara; Thienpont, Hugo; Meulebroeck, Wendy; Ottevaere, Heidi

doi:10.1039/d2ay01215d

Cited by 5 publications

(1 citation statement)

References 38 publications

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“…The findings reported here shed light on a promising approach for the batch analysis of microplastics in water and revealed the significance of chemometric methods such as PCA and LDA. Moreover, the developed optofluidic chip paves the way for achieving a reliable, low-cost, and integrated system for online monitoring of microplastics in water [21].…”

Section: Introductionmentioning

confidence: 99%

Towards online monitoring of water pollutants: an optofluidic chip for characterizing microplastics in water

Lotfi Choobbari,

Pourvais Bahramvandi,

Ciaccheri

et al. 2024

Optics and Photonics for Advanced Dimensional Metrology III

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Online monitoring of water pollutants is of great importance for the early detection of contaminants and improving the quality of drinking water. We showcase a smart design of a miniaturized, low-cost, versatile, and handheld optofluidic chip for characterizing microplastics (MPs) in water, which are a potential threat to our environment. The chip encompasses all the required optics for guiding the light to/from the microfluidics, all sandwiched together as a unique miniaturized system. Size and concentration of MPs are characterized by measuring the static light scattering (SLS) signal at two different angles: 0 and 40 degrees. In fact, the concentration of MPs is obtained by observing the SLS signal only at one angle, while for the size of MPs one needs to calculate the variation of signal at two concentrations. In a next step, the performance of the optofluidic chip is benchmarked against a commercial bulky system. The latter works based on a technique called "Goniophotometry", capable of measuring the SLS signal at a broad range of scattering angles between -90 and +90 degrees. Chemometric algorithms like Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) are used to extract the size and concentration of MPs in water using the bulky system. The different sizes and concentrations of MPs are prepared using commercial Polystyrene (PS) beads. It is shown that the developed optofluidic microsystem provides a comparable performance to the commercial bulky machine and is thus a significant step towards the online monitoring of water pollutants, like MPs, in drinking water.

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Section: Introductionmentioning

confidence: 99%

Towards online monitoring of water pollutants: an optofluidic chip for characterizing microplastics in water

Lotfi Choobbari,

Pourvais Bahramvandi,

Ciaccheri

et al. 2024

Optics and Photonics for Advanced Dimensional Metrology III

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Optical biosensors: from working principles to detection methods of label-free devices

Chalyan,

Ottevaere,

Pasquardini

2024

Biophotonics and Biosensing

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Micro(nano)plastics from synthetic oligomers persisting in Mediterranean seawater: Comprehensive NMR analysis, concerns and origins

Giannattasio,

Iuliano,

Oliva

et al. 2024

Environment International

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Batch analysis of microplastics in water using multi-angle static light scattering and chemometric methods

Abstract: Size and concentration are two important parameters for the analysis of microplastics (MPs) in water. The analytical tools reported so far extract this information in a single-particle analysis mode, dramatically...

Cited by 5 publications

References 38 publications

Towards online monitoring of water pollutants: an optofluidic chip for characterizing microplastics in water

Towards online monitoring of water pollutants: an optofluidic chip for characterizing microplastics in water

Optical biosensors: from working principles to detection methods of label-free devices

Micro(nano)plastics from synthetic oligomers persisting in Mediterranean seawater: Comprehensive NMR analysis, concerns and origins

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