| 4. | Characterizing the surface charge of synthetic nanomembranes by the streaming potential method Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 14 April 2010 Subhra Datta, A.T. Conlisk, Dharmesh M. Kanani, Andrew L. Zydney, William H. Fissell, Shuvo Roy Graphical Abstract
The zeta potential ζapp apparent from streaming potential measurement and thin electric double layer theory is corrected to the true zeta potential value (circle) using finite-EDL streaming potential theory (curve).  | | | 12. | Sensitive label-free immunoassay of carcinoembryonic antigen based on Au–TiO2 hybrid nanocomposite film Journal of Colloid and Interface Science, In Press, Accepted Manuscript, Available online 13 April 2010 Yuyong Zhang, Ruo Yuan, Yaqin Chai, Yun Xiang, Xiaoqing Qian, Haixia Zhang Graphical Abstract
In this paper, a new nanostructured Au–TiO2 particle was synthesized and employed for the construction of a label-free amperometric immunosensor for carcinoembryonic antigen (CEA) determination. The spherical Au–TiO2 nanoparticles provided a good microenvironment for the immobilization of biomolecules, enhanced the surface coverage of protein, had large surface-to-volume ratio, film-forming ability and high stability. The Au–TiO2 nanoparticles were characterized by transmission electron microscopy (TEM). The fabrication process of the electrochemical immunosensor was monitored by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. Under optimal conditions, the proposed immunosensor exhibits a good linearity at the studied concentration range from 0.2 to 160.0 ng mL−1 towards CEA with a coefficient of 0.9965 and a detection limit of 0.06 ng mL−1 (S/N=3). Moreover, the proposed immunosensor shows good selectivity, reproducibility, high sensitivity, and would have a potential application in clinical immunoassays. | | | 15. | Structural and optical properties of ZnO nanopowder prepared by microwave-assisted synthesis Journal of Luminescence, In Press, Accepted Manuscript, Available online 13 April 2010 Y.C. Lee, C.S. Yang, H.J. Huang, S.Y. Hu, J.W. Lee, C.F. Cheng, C.C. Huang, M.K. Tsai, H.C. Kuang | | |