Exosome RNA Exosome RNA Research & Industry News
Researchers at the National Taiwan University of Science and Technology have developed an innovative bioelectronic device that bridges the gap between biology and electronics. Their creation, a hybrid organic electrochemical transistor (OECT), features a 3D nanofiber array made from self-assembled coronene molecules. These nanofibers were designed to interact with specific biological molecules, turning the transistor into a powerful tool for cancer diagnostics and extracellular vesicle (EV) research.
The device showed exceptional ability to isolate circulating tumor cells (CTCs) from blood. In a model system with breast cancer cells mixed into immune cells, it achieved over 90% efficiency in capturing tumor cells. Better still, it could release more than 80% of these captured cells gently using an electrical signal, which preserves cell integrity for downstream analysis.
Beyond capturing cancer cells, the same platform also promotes the secretion of extracellular vesicles. These EVs are important for intercellular communication and hold great promise in diagnostics and drug delivery. By electrically stimulating cells cultured on the device, the team boosted EV production over 12-fold in cancer cells and 8-fold in stromal cells, without changing the vesicle size or requiring genetic modifications.
This dual-purpose device offers a compact and efficient way to isolate rare cells from blood and increase the yield of therapeutic EVs. It’s a promising step forward in liquid biopsy technology and bioelectronic medicine.
