فهرست نشریات علمی دسترسی آزاد ایران

Detection of biomolecules is earning wide attention from  sensing researchers because of demand in many critical fields. SPR technique is considered the most efficient method to study of biomolecular. In this work we present an idea to enhance efficiency and performance of SPR based biosensor system. SPR system response to presence of specific concentration of targeted molecules by absorbing a specific light wavelength from a wide light spectrum. The accuracy of the sensing depends on the accuracy of absorbed wavelength shift tracking. The resonance absorbation in the output light specrum observed as a  dip in SPR reflection intensity. The tracking precision of the dip peak position on the wavelength axis determines sensitivity of the sensing.  This work presents an idea that makes the dip peak more sharp, and decrease the full width at half maximum (FWHM) of the dip peak. consequently the whole performance will be improved in terms of sensitivity and consequently the whole performance will be improved in terms of sensitivity and low limit detection parameter.