%0 Journal Article %A An-Shik Yang and Chin-Ting Kuo and Yung-Chun Yang and Wen-Hsin Hsieh and Chiang-Ho Cheng %D 2015 %J International Journal of Mechanical and Mechatronics Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 103, 2015 %T Characterization of the Dispersion Phenomenon in an Optical Biosensor %U https://publications.waset.org/pdf/10001625 %V 103 %X Optical biosensors have become a powerful detection and analysis tool for wide-ranging applications in biomedical research, pharmaceuticals and environmental monitoring. This study carried out the computational fluid dynamics (CFD)-based simulations to explore the dispersion phenomenon in the micro channel of an optical biosensor. The predicted time sequences of concentration contours were utilized to better understand the dispersion development occurred in different geometric shapes of micro channels. The simulation results showed the surface concentrations at the sensing probe (with the best performance of a grating coupler) in respect of time to appraise the dispersion effect and therefore identify the design configurations resulting in minimum dispersion. %P 1199 - 1204