Design of Carbon Nanotube Modified Conducting Polymer for Biosensing Applications

Photoelectrochemical Biosensing Approach for Alcohol Determination by “Wiring” of Alcohol Oxidase Photonically with P(SNS-NH2)/AOx/CNT/[Ru(bpy)3]2+Modified Electrodes

“…Clean Au slides with an effective illumination area of 0.25 cm 2 were cleaned and cyclic voltammograms up to 100 cycles (1.05×10 −3 coulombus) were run on a gold slide at a scan rate of 0.5 V/s in acetonitrile solution containing 5 mg/mL SNS-NH 2 , 0.1 M NaClO 4 and 0.1 M LiClO4. CNT (1mg) was dissolved in 1.0 mL 98% ethanol and sonicated for 30 min, then 10 μL of CNT dispersion were spread over the polymer coated electrode and allowed to dry overnight (39). After surface modification with CNT, P(SNS-NH 2 )/CNT electrodes), 5μL AOx (6.25 U) and 10 μL of glutaraldehyde solution (1% in pH = 7.3,50 mM phosphate buffer) were cast on to an electrode surface.…”

“…Conducting polymer and CNTs attracted interest in recent years since the incorporation of CNTs into conducting polymers can lead to producing new composite materials with combined properties of each component. Therefore their synergistic effect would be useful in some particular applications (39).…”

Ferrocene-Functionalized 4-(2,5-Di(thiophen-2-yl)-1H-pyrrol-1-yl)aniline: A Novel Design in Conducting Polymer-Based Electrochemical Biosensors

“…Furthermore the conducting polymer of 2-(2,5-di(thiophen-2-yl)-1 H -pyrrol-1-yl) acetic acid was electrochemically synthesized onto a graphite electrode by cyclic voltammetry and immobilization of GOx onto the polymer was performed through covalent binding using carbodiimide coupling method by Ekiz et al [ 11 ]. In another study, 4-(2,5-di(thiophen-2-yl)-1 H -pyrrol-1-yl) benzenamine (SNS-NH 2 ) was electrodeposited onto the graphite electrode and used as an immobilization support for different biocomponents such as enzyme [ 12 , 13 ] and G. oxydans cells [ 14 ]. Recently, Oztekin et al investigated direct electron transfer from GOx immobilized on polyphenanthroline-modified glassy carbon electrode [ 15 ].…”

Synthesis of an amine-functionalized naphthalene-containing conducting polymer as a matrix for biomolecule immobilization

“…[14][15][16] Nowadays, functionalized unique conducting polymers, which have a variety of functional groups such as amino or carboxyl groups, have received great attention for their ability to form highly stable biodetection systems through the strong bonds between the polymeric platforms and biomolecules. Recently, 4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)benzenamine (SNS-NH 2 ) was electrodeposited onto an electrode surface and used as an immobilization support for different biocomponents such as glucose oxidase 17,18 and G. oxydans cells. 19 [poly(TBT6-NH 2 )], where choline oxidase was successfully immobilized via crosslinking due to the free amino functional groups of the polymeric structure.…”