This paper discuss about a novel technique of developing a nano-structured polypyrrole biosensor for measurement of very low concentrations of hydrogen peroxide in liquid media. The proposed fabrication method is very effective in growing a nano-structured conducting polymer layer on a planar conducting substrate. In addition enzyme loading was done under a high electric field of 1000V/m. The d...

We have chemically polymerized pyrrole in the presence of Sn-doped TiO2 nanoparticles (NPs) and TiO2 (NPs) which act as a protective pigment. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) results show a core–shell structure of pigments in which TiO2 and Sn-doped TiO2 NPs have a nucleus effect and caused a homogenous PPy core–shell type morphology...

Wood and cellulose derivatives, in both fibrous and water-soluble macromolecular form, are emerging as outstanding candidates for organic electronics applications due to their large-scale availability, low cost, and easy processability. Paper and wood fibre-based derivatives are considered to be materials of choice as supports for communication world-wide. The interest in producing inexpensive ...

In order to characterize stable composites that will contribute industrial applications, polypyrrole (PPy)/huntite were prepared by the physical method. Polypyrrole produced at various huntite concentrations (10, 20, 30, 40 wt.%). Polypyrrole/huntite was characterized Fourier transform infrared spectroscopy (FTIR), Thermal Gravimetric Analyses (TGA), Differential (DTA), Scanning electron micros...

The ion-mediated conduction and versatility of device fabrication of conducting polymers provide a route to the study of neural signaling. Patterned junctions of conducting polypyrrole have been electropolymerized on commercially available microelectrode arrays, with typical dimensions 200 mum between electrodes, each electrode being 30 mum in diameter. Tetrabutylammonium perchlorate or sodium ...

Microelectrodes have been used for over 30 years of glucose biosensor history. Two different types of glucose biosensors were developed using 176μm and 25μm diameter Pt wire cylindrical microelectrodes. The 176 μm Pt wire type microelectrodes were modified with non-conductive polymers and glucose oxidase enzyme. The lifetime of biosensors was over 50 days and had negligible response to interfer...

electrode has been investigated as the electrode substrate for deposition of a thin membrane ion gating polymer called polypyrrole (PPy). The PPy membrane was successfully deposited and its surface morphology studied using scanning electron microscopy. Given the properties of the bucky gel electrode and its ability to conduct ions, this work establishes the first step towards a semi-solid ion-g...

The development of highly flexible fibre batteries based on conducting polymers is described. The performance of cells with polypyrrole–hexafluorophosphate (PPy/PF6) and polypyrrole–polystyrenesulfonate (PPy/PSS) is evaluated. Based on the results, fibre batteries consisting of a PPy/PF6 cathode and a PPy/PSS anode are fabricated and tested in an electrolyte of 1M LiPF6 in a mixture of ethylene...

This work includes the exploitation of laboratory-assembled SPR technique for application gas sensors at room temperature. The refractive index change interface ZnO/polypyrrole with adsorption gases (NH3) is basis sensor. theoretical simulations were done to find out optimum thickness ZnO and polypyrrole composite films sharp reflectance values. Theoretical curves obtained by changing value gol...

In this work, polypyrrole/ZnO nanocomposite (PPy/ZnO NC) was produced through synthesis of polypyrrole polymer in the presence of ZnO nanoparticles. The corrosion behavior of polyvinyl butyral coatings without and with different weight percentages of nanocomposite on the surface of 7075 Al alloy was investigated in 3.5% NaCl solution at different immersion times using electrochemical impedance ...