Title :
Implementation of a FPGA-based data acquisition and processing system for image sensors employed in SPR biosensing
Author :
Pereira, E.G. ; Oliveira, Luis C. ; Morais, Marcos R. A. ; Lima, A.M.N. ; Neff, H.
Author_Institution :
Dept. of Electr. Eng. - DEE, Univ. Fed. de Campina Grande - UFCG, Campina Grande, Brazil
Abstract :
Optical biosensors based on surface plasmon resonance (SPR) are powerful tools for detecting biomolecules. In this paper, a reconfigurable image acquisition and processing system for SPR sensors is presented. The system uses a FPGA device for acquiring and processing data from an image sensor to determine the angle at which the minimum reflectivity of the optical multilayer arrangement occurs. A frequency domain processing for smoothing the SPR signal is implemented in hardware. The system also incorporates a communication interface for sending processed and unprocessed data from the FPGA to a remote device and receiving settings regarding the data acquisition and data processing strategies.
Keywords :
biological techniques; biosensors; data acquisition; field programmable gate arrays; frequency-domain analysis; image sensors; optical sensors; surface plasmon resonance; FPGA device; FPGA-based data acquisition; SPR biosensing; SPR signal smoothing; communication interface; frequency domain processing; image processing system; image sensor; optical biosensor; optical multilayer arrangement; reconfigurable image acquisition; surface plasmon resonance; Biosensors; Field programmable gate arrays; Image sensors; Optical surface waves; Plasmons; Refractive index; FPGA; biosensor; data acquisition system; surface plasmon resonance;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014 IEEE International
Conference_Location :
Montevideo
DOI :
10.1109/I2MTC.2014.6860869
