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Photonic microfluidic technologies for phytoplankton research

Abstract: Phytoplankton is a crucial component for the correct functioning of different ecosystems, climate regulation and carbon reduction. Being at least a quarter of the biomass of the world's vegetation, they produce approximately 50% of atmospheric O2 and remove nearly a third of the anthropogenic carbon released into the atmosphere through photosynthesis. In addition, they support directly or indirectly all the animals of the ocean and freshwater ecosystems, being the base of the food web. The importance of their measurement and identification has increased in the last years, becoming an essential consideration for marine management. The gold standard process used to identify and quantify phytoplankton is manual sample collection and microscopy-based identification, which is a tedious and time-consuming task and requires highly trained professionals. Microfluidic Lab-on-a-Chip technology represents a potential technical solution for environmental monitoring, for example, in situ quantifying toxic phytoplankton. Its main advantages are miniaturisation, portability, reduced reagent/sample consumption and cost reduction. In particular, photonic microfluidic chips that rely on optical sensing have emerged as powerful tools that can be used to identify and analyse phytoplankton with high specificity, sensitivity and throughput. In this review, we focus on recent advances in photonic microfluidic technologies for phytoplankton research. Different optical properties of phytoplankton, fabrication and sensing technologies will be reviewed. To conclude, current challenges and possible future directions will be discussed.

 Autoría: Algorri J.F., Roldán-Varona P., Fernández-Manteca M.G., López-Higuera J.M., Rodriguez-Cobo L., Cobo-García A.,

 Fuente: Biosensors, 2022, 12(11), 1024

 Editorial: MDPI

 Fecha de publicación: 16/11/2022

 Nº de páginas: 25

 Tipo de publicación: Artículo de Revista

 DOI: 10.3390/bios12111024

 ISSN: 2079-6374

 Proyecto español: PID2019-107270RB-C21