[14p-P1-1~9] 3.1 Basic optics and frontier of optics

▲ [14p-P1-8] Surface plasmon resonance based fiber optic nicotine sensor using gel entrapment technique

〇(D)rana tabassum¹, Banshi D.Gupta¹ (1.I.I.T. Delhi, India)

Keywords:Surface plasmon resonance, sensor, nicotine

We propose an experimental study on the surface plasmon resonance (SPR) based fiber optic nicotine detection utilizing silver and poly (Ortho-aminophenol) entrapped gel thin films. The sensor works on wavelength modulation scheme.The interaction of the hydrogen bonds of nicotine with the POAP of the entrapped gel layer gives rise to the change in volume of the gel matrix and hence changes dielectric function of the gel layer which is observed as a dip in the transmitted power spectrum. With the increase in the nicotine concentration from 0 to 150 mM, a sufficient amount of shift in the resonance wavelength is observed. The proposed sensor can be used for online monitoring of nicotine in different environment.