Overview
- Researchers published a prototype in Nature Photonics that uses a 3D engineered optical chip to read how molecules bend light and detect extracellular vesicles from a single drop of blood in about 15 minutes.
- In laboratory comparisons the device showed roughly a 10,000-fold improvement in sensitivity over standard ELISA assays when detecting those vesicles.
- When tested on 170 human serum samples the prototype distinguished early lung cancer from healthy samples with reported accuracy up to 95 percent versus about 75 percent for ELISA.
- The sensing chip is compatible with 8-inch semiconductor wafer fabrication, a design choice the authors say could make mass production and low per-unit costs possible if engineering hurdles are solved.
- Study authors caution that the prototype needs further engineering, broader clinical validation and regulatory review before it can be used in clinics or at home, and that real-world rollout will require strong quality control and oversight.