High-Sensitivity Diamond-tipped Thermal Sensor for Non-Invasive Skin Cancer Detection: Development and Validation – Part A

Abstract A novel diamond-tipped thermal sensor has been developed for non-invasive skin cancer detection. The device uses a single-crystal diamond substrate with a thermocouple measurement, modelling demonstrates a ~10 times sensitivity improvement (0.08°C/thermal product) over previous thin-film thermal product sensors. Part A of this 2-part paper details the sensor concept, modelling of the sensor for various materials, and design rationale. Part B paper presents experimental validation, statistical modelling, and preliminary biological tissue testing. Keywords: Thermal product sensor; Diamond substrate; Skin cancer detection; Non-invasive diagnostics; Thermal properties; Biomedical sensing