Title :
Variable incidence angle subwavelegth grating SPR graphene biosensor
Author :
Islam, Md Shariful ; Kouzani, Abbas Z.
Author_Institution :
Sch. of Eng., Deakin Univ., Geelong, VIC, Australia
Abstract :
This paper investigates the sensitivity enhancement of a variable incidence angle subwavelength grating based multilayer surface plasmon resonance biosensor (SPRB). In the proposed design, a periodic array of subwavelength grating is integrated on top of a layer of graphene sheet in the multilayer SPR biosensor. The performance of the biosensor is investigated through monitoring the biomolecular interactions of cDNA-ssDNA interactions on its surface. The sensitivity improvement is indicated by the shift of the resonance peak angle.
Keywords :
DNA; biological techniques; biosensors; chemical sensors; diffraction gratings; graphene; molecular biophysics; sensitivity analysis; surface plasmon resonance; SPR graphene biosensor; SPRB; biomolecular interaction monitoring; biosensor performance; cDNA-ssDNA interaction; graphene sheet layer; multilayer SPR biosensor; multilayer surface plasmon resonance biosensor; periodic subwavelength grating array; resonance peak angle shift; sensitivity enhancement; variable incidence angle subwavelegth grating; Biosensors; Graphene; Gratings; Optical surface waves; Plasmons; Sensitivity; Surface waves;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
DOI :
10.1109/EMBC.2013.6610177
