@article{(Open Science Index):https://publications.waset.org/pdf/5167, title = {Dextran Modified Silicon Photonic Microring Resonator Sensors}, author = {Jessie Yiying Quah and Vivian Netto and Jack Sheng Kee and Eric Mouchel La Fosse and Mi Kyoung Park}, country = {}, institution = {}, abstract = {We present a dextran modified silicon microring resonator sensor for high density antibody immobilization. An array of sensors consisting of three sensor rings and a reference ring was fabricated and its surface sensitivity and the limit of detection were obtained using polyelectrolyte multilayers. The mass sensitivity and the limit of detection of the fabricated sensor ring are 0.35 nm/ng mm-2 and 42.8 pg/mm2 in air, respectively. Dextran modified sensor surface was successfully prepared by covalent grafting of oxidized dextran on 3-aminopropyltriethoxysilane (APTES) modified silicon sensor surface. The antibody immobilization on hydrogel dextran matrix improves 40% compared to traditional antibody immobilization method via APTES and glutaraldehyde linkage.}, journal = {International Journal of Biomedical and Biological Engineering}, volume = {6}, number = {9}, year = {2012}, pages = {447 - 450}, ee = {https://publications.waset.org/pdf/5167}, url = {https://publications.waset.org/vol/69}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 69, 2012}, }