Photometric Station for In-Vitro Diagnostic Analysis Through the Use of Organic-Based Opto-electronic Devices and Photonic Crystals

The present work proposes a method and an apparatus that allows the in vitro diagnostic analysis of biological samples to be carried out by analyzing the light radiation transmitted through the sample. An OLED (Organic LED) source, with broad emission spectrum for white light, was used; the optical path of the light radiation emitted by the source has been adapted to the specific wavelengths of the system (405 nm, 450 nm, 492 nm, 550 nm, 620 nm) and the detection of the signal was carried out through the use of an OPD (organic photodiode) with the appropriate photoresponse. To suitably select the analysis signal, a series of photonic crystals have been used, with the aim to also obtain a bandwidth of less than 10 nm as required by the solutions already present on the market. The proposed system gives the opportunity to reduce the overall dimensions of the analyzer compared to the systems existing on the market, avoiding the use of supplementary optical fibers and interference filters.