Multi-walled carbon nanotubes with poly(NDGAChi) biocomposite film for the electrocatalysis of epinephrine and norepinephrine Export

@article{citeulike:4179608, abstract = {A novel biocomposite film (MWCNTs-P NDGAChi ) which contains multi-walled carbon nanotubes (MWCNTs) along with the incorporation of poly(nordihydroguaiaretic acid) and chitosan co-polymer (P NDGAChi ) has been synthesized on gold electrode by potentiostatic methods. The presence of MWCNTs in the biocomposite film enhances P NDGAChi 's surface coverage concentration (Γ) on the electrode and decreases degradation of P NDGAChi during cycling. The biocomposite film also exhibits promising enhanced electrocatalytic activity towards the oxidation of biochemical compounds such as epinephrine (EP) and norepinephrine (NEP). The cyclic voltammetry has been used for the measurement of electroanalytical properties of analytes by means of MWCNTs-P NDGAChi biocomposite film modified gold electrode. The sensitivity values of MWCNTs-P NDGAChi biocomposite film modified gold electrode are higher than the values which are obtained for P NDGAChi film modified gold electrode. Electrochemical quartz crystal microbalance studies reveal the enhancements in the functional properties of MWCNTs and P NDGAChi present in MWCNTs-P NDGAChi biocomposite film. Surface morphology of the biocomposite films have been studied using scanning electron microscopy, atomic force microscopy and scanning tunneling microscopy. The surface morphology results reveal that P NDGAChi incorporated on MWCNTs. Finally, the flow injection analysis has been used for the amperometric detection of EP and NEP at MWCNTs-P NDGAChi film modified screen printed carbon electrode.}, author = {Li, Ying and Umasankar, Yogeswaran and Chen, Shen-Ming}, citeulike-article-id = {4179608}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.ab.2009.02.032}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0003269709001390}, day = {01}, doi = {10.1016/j.ab.2009.02.032}, issn = {00032697}, journal = {Analytical Biochemistry}, keywords = {biocomposite, carbon, electrocatalysis, electrodes, epinephrine, film, modified, multiwall, nanotubes, norepinephrine}, month = {March}, posted-at = {2009-03-15 18:34:17}, priority = {2}, title = {Multi-walled carbon nanotubes with poly(NDGAChi) biocomposite film for the electrocatalysis of epinephrine and norepinephrine}, url = {http://dx.doi.org/10.1016/j.ab.2009.02.032}, year = {2009} }

TY - JOUR ID - citeulike:4179608 L3 - citeulike-article-id:4179608 N2 - A novel biocomposite film (MWCNTs-P NDGAChi ) which contains multi-walled carbon nanotubes (MWCNTs) along with the incorporation of poly(nordihydroguaiaretic acid) and chitosan co-polymer (P NDGAChi ) has been synthesized on gold electrode by potentiostatic methods. The presence of MWCNTs in the biocomposite film enhances P NDGAChi ’s surface coverage concentration (Γ) on the electrode and decreases degradation of P NDGAChi during cycling. The biocomposite film also exhibits promising enhanced electrocatalytic activity towards the oxidation of biochemical compounds such as epinephrine (EP) and norepinephrine (NEP). The cyclic voltammetry has been used for the measurement of electroanalytical properties of analytes by means of MWCNTs-P NDGAChi biocomposite film modified gold electrode. The sensitivity values of MWCNTs-P NDGAChi biocomposite film modified gold electrode are higher than the values which are obtained for P NDGAChi film modified gold electrode. Electrochemical quartz crystal microbalance studies reveal the enhancements in the functional properties of MWCNTs and P NDGAChi present in MWCNTs-P NDGAChi biocomposite film. Surface morphology of the biocomposite films have been studied using scanning electron microscopy, atomic force microscopy and scanning tunneling microscopy. The surface morphology results reveal that P NDGAChi incorporated on MWCNTs. Finally, the flow injection analysis has been used for the amperometric detection of EP and NEP at MWCNTs-P NDGAChi film modified screen printed carbon electrode. JF - Analytical Biochemistry SN - 00032697 TI - Multi-walled carbon nanotubes with poly(NDGAChi) biocomposite film for the electrocatalysis of epinephrine and norepinephrine KW - biocomposite KW - carbon KW - electrocatalysis KW - electrodes KW - epinephrine KW - film KW - modified KW - multiwall KW - nanotubes KW - norepinephrine AU - Li, Ying AU - Umasankar, Yogeswaran AU - Chen, Shen-Ming PY - 2009/03/01/ UR - http://dx.doi.org/10.1016/j.ab.2009.02.032 ER -