Presentation Information
[24a-1BN-1]Detection of polystyrene nanoparticles in freshwater by surface plasmon resonance spectroscopy
〇Mikihisa Hirose1, Shuo Cheng2, Kotaro Kajikawa1, Mana Toma1 (1.Tokyo Tech, Eng., 2.Tokyo Tech, Env.)
Keywords:
Biosensor,microplastics,Surface Plasmon Resonance
In recent years, pollution caused by microplastics has attracted global attention as a significant environmental issue. Microplastics are typically defined as plastic particles smaller than 5 mm in size. Due to its widespread use, microplastics are widely produced from multiple sources and consequently discarded into freshwater. Although the risk is not fully understood, microplastics may raise potential toxicity concerns. Specifically, polystyrene nanoparticles are more toxic than other plastic particles because of their properties. However, there are some technical limitations with the presented microplastic detection methods. In this study, we realize a simple and sensitive polystyrene detection method by combining Polystyrene Binding Peptide (PSBP) modification and Surface Plasmon Resonance based biosensor (SPR biosensor).