Skin cancer is the most common form of cancer and is increasing worldwide. Historically, its diagnosis has relied on various conventional techniques, mainly biopsies, which are performed invasively. There are other less invasive diagnostic techniques – such as dermoscopy, ultrasound or Raman spectroscopy, among others – but they are not immediate (the sample must be taken to the laboratory), are expensive and require highly specialised personnel and equipment.

In this context, the SKINSENS proposal arises with the intention of alleviating these drawbacks. Its main objective is to design a prototype of a thermo-optical sensor with electrical readout that detects skin alterations present in cancerous tissue. By comparing samples of diseased and non-cancerous tissue, it can be observed that the biological and physico-chemical properties change. The key to the operation of the SKINSENS sensor lies in detecting these variations, in particular in two parameters: the heat capacitance and the optical absorbance. The skin is illuminated with a laser directly through the sensor, which ensures an instantaneous response to temperature changes in the illuminated area. In addition, this method is especially beneficial for darker coloured tissues, or if the patient has tattoos.

Skinsens will have a significant social impact, especially in terms of public health, as it is a new solution that could be used in a simple and practical way as a “point of care” in medical centres and in surgical procedures in hospitals. This will reduce the volume of undiagnosed complications and progression of the condition.