SENSOR FABRICATION BASED ON SURFACE PLASMON RESONANCE FOR APPLICATION OF BIOMOLECULE DETECTION

• Main Author: HANIFAH LIANI (NIM : 20215033), PUTRI
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/23735
• Institution: Institut Teknologi Bandung

Nowadays, biological detection is needed in some industry. Some of detection <br /> <br /> method already done but in this research we use sensor based surface plasmon <br /> <br /> resonance which have a high sensitivity and one of free label method. Detection <br /> <br /> without specific tag or color used to get high sensitivity measurement of analyte <br /> <br /> or biomolecules. One way to exited SPR is Total Internal Reflection (TIR) in <br /> <br /> boundary of dielectric and metal from fiber optic. Therefore, in this research <br /> <br /> fabrication and simulation using Comsol Multiphysics 5.3 of tapered fiber was <br /> <br /> done. Simulation was done to know the effect of electromagnetic field of sensor. <br /> <br /> Krestchmann method and tapered fiber was done with some variation such as type <br /> <br /> of metal, thickness of metal, angle of incidence and also wavelength. The tapered <br /> <br /> fiber that generated have a 9 degree tilt by tapering rig and can be used to <br /> <br /> biomolecule detection with an amount dip friction of porcine is 34,12 nm and <br /> <br /> 12,97 nm bovine. Besides that, from the simulation of sensor which was produced <br /> <br /> known that have a 2,3891 sensitivity of sensor.