Opportunities in next-generation porous membrane-based extracellular vesicle processing and applications.

Extracellular vesicle (EV) research and applications increasingly leverages porous membrane technologies beyond traditional filtration methods used for isolation and purification. While filtration remains foundational in EV handling, emerging applications employ membranes directly in new EV research contexts, such as: three-dimensional cell culture, tissue barrier modeling, environmental monitoring, and horizontal EV transfer studies. Concurrently, advancements in membrane science are providing novel modifications leading to significantly enhanced membrane performance in EV applications. These innovations include: surface-enhanced membranes for plasmonic detection, selective EV corona characterization and manipulation, targeted EV removal strategies, self-assembled and patterned membranes to simplify production and improve consistency, customized pore geometries for optimized throughput, and self-cleaning membranes to mitigate fouling. Collectively, developments in these porous membrane technologies promise to markedly improve the effectiveness, precision, and scope of EV-based research and applications, particularly within diagnostics, therapeutics, and cancer biology.