Ultra Low Cost All Polymer Systems for Biosensing Applications

In this paper, we have investigated the application of polyelectrolyte multilayer (PEM) fabricated by dip coating and spin assisted (SA) Layer-by-Iayer (LbL) self-assembly technique in biosensing. For Bio-molecular sensing FITC conjugated biotin was used, It is found that dip coated devices are having higher fluorescence intensities compared to the SA coated devices. This provides opportunities to tune the better LbL techniques in growing PEM films, which is of interest for applications in molecular diagnostic methods.