Extracellular vesicles (EVs) are known to be heterogeneous intravitally. Here, we present cellulose nanofiber sheets which capture EVs with high purity from trace volumes of biofluids and enable analysis of location-dependent heterogeneity to enhance understanding of pathological mechanisms and enable diagnostic readouts.
- Akira Yokoi
- Kosuke Yoshida
- Takao Yasui