Trends in Applied Sciences Research1819-35792151-7908Science International10.3923/tasr.2012.737.747SundariRita HadibarataTony HengLee Yook AhmadMusa 9201279Formaldehyde is a known carcinogen which may cause cancer when accumulated in the body. This study showed the results of a formaldehyde biosensor which was fabricated by nanogold doping in a poly-2-hydroxy ethyl methacrylate (p-HEMA) membrane. The biocatalysts used for the biosensor were 1.0% ferrocene mediator and alcohol oxidase which was then deposited on a carbon screen-printed electrode. 2,2-Dimethoxy-2-phenyl-acetophenone (DMPP) was applied to the membrane as a polymerization agent. The amperometric method was employed with a phosphate buffer solution (pH = 7.2). The optimum potential was selected to be 0.3 V which obtained good linear calibration (R2 = 0.99) for a range of 0.02-0.16 mM formaldehyde (n = 4). The RSD (Relative Standard Deviation) and LOD (Limit of Detection) were found to be 5.62% and 0.007 mM formaldehyde, respectively. The fabricated biosensor successfully detected formaldehyde in selected fresh foodstuffs (tauhu, meatballs, shrimp and dried and wet fish) and the results were well correlated with the NASH standard method.]]>Ali, M.B., Y. Korpan, M. Gonchar, A. El'skaya, M.A. Maaref, N. Jaffrezic-Renault and C. Martelet,200622575581Atkins, P. and J. de Paula,20027th Edn.,pp: 1031-1035pp: 1031-1035Hong, B. and K.A. Kang,20062113331338Boujtita, M., J.P. Hart and R. Pittson,200015257263Castillo, J., S. Gaspar, I. Sakharov and E. Csoregi,200318705714Chay, T.C., S. Surif and L.Y. Heng,2009Anabaena torulosa as an electrochemical toxicity biosensor.]]>21420Chen, F., Y. Jiang and F. Ouyang,2005416Cui, X., G. Fang, L. Jiang and S. Wang,2007590253259Dzyadevych, S.V., V.N. Arkhypova, Y.I. Korpan, A.V. Elskaya and A.P. Soldatkin et al.,20014454755Hall, E.A.H., M. Preuss, J.J. Gooding and M. Hammerle,19981998pp: 227-237pp: 227-237Huang, Y., W. Zhang, H. Xiao and G. Li,200521817821Issa, R., N.A. Hamdan and M.F.M. Noh,2010Mycobacterium tuberculosis.]]>9304311Kataky, R., M.R. Bryce, L. Goldenberg, S. Hayes and A. Nowak,200256451458Khlupova, M., B. Kuznetsov, O. Demkiv, M. Gonchar, E. Csoregi and S. Shleev,200771934940Kleeberg, U. and W. Klinger,198281931Korpan, Y.I., M.V. Gonchar, A.A. Sibirny, C. Martelet, A.V. El'skaya, T.D. Gibson and A.P. Soldatkin,2000157783Lawal, A.T. and S.B. Adeloju,2008825992605Lawal, A.T. and S.B. Adeloju,201212315325Li, J., J. Yu, F. Zhao and B. Zeng,20075873340Lin, L., J. Chen, Q. Lin, W. Chen and J. Chen et al.,20108021132119Luo, X.L., J.J. Xu, W. Zhao and H.Y. Chen,20042 nanoparticles.]]>97249255Labib, M., M. Hedstrom, M. Amin and B. Mattiasson,2010659194200Ngamchana, S. and W. Surareungchai,2004510195201Opallo, M. and J. Kukulka-Walkiewicz,20014642354242Rahaie, M. and S.S. Kazemi,20109428443Shimomura, T., T. Itoh, T. Sumiya, F. Mizukami and M. Ono,2008135268275Sharma, D., B. Sharma and A.K. Shukla,2011102340Shing, W.L., S. Surif and L.Y. Heng,2008Anabaena torulosa.]]>3162168Shyuan, L.K., L.Y. Heng, M. Ahmad, S.A. Aziz and Z. Ishak,20083359365Smutok, O., B. Ngounou, H. Pavlishko, G. Gayda, M. Gonchar and W. Schuhmann,2006113590598Sridevi, G., G. Mugeraya and P. Gopkumar,200811623Sundaram, S. and K.K. Soumya,20116116Tyihak, E., L. Trezl and B. Szende,1998851259270Vastarella, W. and R. Nicastri,200566627633Vianello, F., R. Boscolo-Chio, S. Signorini and A. Rigo,200722920925Kandimalla, V.B., V.S. Tripathi and H. Ju,20062711671174Wang, S., X. Cui and G. Fang,200710314871493Yang, X., Y. Lu, Y. Ma, Y. Li, F. Du and Y. Chen,2006420416420Yang, W., J. Wang, S. Zhao, Y. Sun and C. Sun,20068665672Zhang, Y., Y. Zhang, H. Wang, B. Yan, G. Shen and R. Yu,2009627914Zhang, S., N. Wang, Y. Niu and C. Sun,2005109367374