OPTICAL CHARACTERIZATION OF OXYTOCIN SOLUTION IN VARIOUS FLUIDS

The ability to measure the amount and fluctuations of oxytocin in an infant’s organism is very significant in neuropsychology. For example, these measurements are used in experiments to show the correlation between oxytocin levels and the amount and intensity of eye contact initiated by the infant during interaction. This correlation and measure is an important factor in early diagnosis and treatment of ASD (Autism Spectrum Disorders). Existing methods for evaluation of the oxytocin level in the blood and in the different sections of the brain and nervous system are very complex and not reliable.

Development of an operative and accurate method for neuropeptides estimation requires knowledge of substances properties and in particular the optical properties. In our work, we measured the optical transmittance and absorption of several fluid solutions containing oxytocin in the large spectral range. Obtained results indicate that the most representative spectral region for accurate oxytocin measurement is the ultra-violet spectral area. These promising results enable assessment the oxytocin level in various solutions as well as differentiating oxytocin from other neuropeptides.