Light and living organisms: therapeutic interactions
Since ancient times, human beings have used sunlight as a form of therapy. With the advent of artificial light and lasers and Light Emitting Diodes (LEDs) in particular, the medical applications of light have seen major developments because it is now possible to study the interaction between specific wavelengths and biological systems. Not all light is the same: the “visible” portion of the electromagnetic spectrum is made up of various wavelengths characterised by specific energies and frequencies that produce different biological effects on living organisms.
In recent years, Italian and international research institutions operating in the field of Photonics, in collaboration with EmoLED, have discovered that certain wavelengths of visible light spectrum in the blue range (410-430 nm) can modulate various biological factors that are involved in skin tissue repair process, promoting a positive outcome.
The healing of a wound is a complex physiological process, which in the majority of cases ends within four weeks. Impaired health conditions can bring about the onset of wounds for which the healing process is prolonged or never completely finishes. The wounds can thus be defined as “chronic”, and represent a serious medical problem worldwide, having a significant impact on the quality of life of patients and a high social cost. The availability of new therapies that can stimulate the healing process of a difficult wound should therefore be a medical and public health priority.
