Synthesis of Tin Oxide Nanofibers for Lung Cancer, Diabetes and Kidney Malfunction Detection

A highly sensitive exhaled-breath sensor, using tin dioxide (SnO2) fibers assembled from thin, wrinkled SnO2 nanotubes can be developed. These metal-oxide nanofiber-based chemiresistive gas sensors allow for portable real-time breath tests that could be available on smart phones or tablets in the near future. They sensors allow for diagnosing serious diseases such as diabetes or lung cancer quickly and effectively by simply breathing into a small nanofiber breathing sensor, mounted on a phone or other device. . The SnO2 fibers, called micro phase-separations, are generated between polymers and dissolved materials while varying the flow rate of an electrospinning solution feed and then applying a heat treatment.