Project of a portable surface plasmons resonance sensor based on single-board computer

Driven by a series of technological advances, single-board computer (SBC) lead a strong trend in the development of portable and low-cost devices for the analysis of substances in real time and point-of-care testing (PoCT). Due a several advantages, the surface plasmons resonance (SPR) based sensors drove the creation of new portable biosensors. This work proposes the development of an SPR sensor based in SBC and using the low-cost brazilian biochip /prims, called PPBIO, as the sensor element. For processing, analysis and control of the sensor a single-board platform Raspberry Pi is applied. The proposed sensor has a display to allow interactions with the user and electronic adjustment of the optical components. The partial implementation cost of this project is R$1,600.00 and its dimensions are 170 × 110 × 100 mm. A detection limit of 10
⁻⁵
RIU is expected to be reached.