A one-step strategy for rapid detection of sub-50 nm polystyrene nanoplastics using nanobody-based homogeneous immunoassay

Key Points

• Detection of nanoplastics under 50 nm is achieved using a novel immunoassay method, enhancing accuracy and speed.
• The immunoassay shows a detection limit significantly lower than conventional methods, enabling better monitoring.
• This study utilizes a homogeneous immunoassay technique focusing on nanobody recognition, a key advancement in sensitivity.
• Environmental implications are critical, as early detection of nanoplastics can help assess pollution's impact on ecosystems.