Nanostructured SmFeO3 Gas Sensors: Investigation of the Gas Sensing Performance Reproducibility for Colorectal Cancer Screening

摘要: Among the various chemoresistive gas sensing properties studied so far, response reproducibility, i.e., capability to reproduce a device with same performance, has been poorly investigated. However, reproducibility of performance is fundamental importance for employment these devices in on-field applications, and demonstrate reliability process development. This sensor property became crucial preparation medical diagnostic tools, which use specific sensors along dedicated algorithm can be used screening diseases. In this work, SmFeO3 perovskite-based A set four devices, obtained from screen-printing deposition, have tested laboratory both controlled concentrations CO biological fecal samples. The samples were employed clinical validation protocol prototype non-invasive colorectal cancer prescreening. Sensors showed high degree, an error lower than 2% value test 6% Finally, recovery times was also evaluated.