نتایج جستجو برای: electropolymerization

تعداد نتایج: 488  

2009
R. Doyle C. B. Breslin

A modified platinum electrode was fabricated by the electropolymerization of pyrrole using a sodium p-sulphonatocalix[6]arene as the supporting electrolyte. The modified electrode acts as a reasonably sensitive electrochemical sensor for dopamine giving a linear calibration curve in the range 0.075 – 1.00 mM dopamine. The sensor shows no ability to sense the common interferent ascorbic acid, th...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2007
Hui Feng Hua Wang Yun Zhang Bani Yan Guoli Shen Ruqin Yu

A direct electrochemical biosensing platform has been fabricated by covalent incorporation of carbon nanotubes (CNT) and gold nanoparticles (GNP) onto the poly(thionine) (PTH) film deposited by electropolymerization. With the synergic effects of the composite nanomaterials together with the excellent mediating redox polymer, the proposed platform could allow for faster electron transfer and hig...

2015
Takeshi Higuchi Hidetoshi Nishiyama Mitsuo Suga Hirohmi Watanabe Atsushi Takahara Hiroshi Jinnai

We propose a one-step nanopatterning method where liquid monomers are polymerized directly with an electron beam under an atmospheric pressure. The method allows precise positional control of an electron beam that induces electropolymerization based on an anodic oxidation only in the irradiated areas. Various versatile conjugated polymers, including polypyrrole, polyaniline and poly(3-hexylthio...

2012
Nareerat Plylahan Nana Amponsah Kyeremateng Marielle Eyraud Frederic Dumur Hervé Martinez Lionel Santinacci Philippe Knauth Thierry Djenizian

The highly conformal electrodeposition of a copolymer electrolyte (PMMA-PEO) into self-organized titania nanotubes (TiO2nt) is reported. The morphological analysis carried out by scanning electron microscopy and transmission electron microscopy evidenced the formation of a 3D nanostructure consisting of a copolymer-embedded TiO2nt. The thickness of the copolymer layer can be accurately controll...

Journal: :ACS applied materials & interfaces 2012
Handoko T Santoso Virendra Singh Kyriaki Kalaitzidou Baratunde A Cola

We synthesized polythiophene (PTh) films on stainless steel electrodes using chronoamperometry in boron trifluoride diethyl etherate (BFEE) electrolyte with anionic surfactants. The presence of the anionic surfactants in BFEE reduced the oxidation potential of thiophene and increased the oxidation current during electropolymerization. The measured in-plane electrical conductivity of PTh films s...

Journal: :Chemical communications 2013
Noémie Lalaoui Kamal Elouarzaki Alan Le Goff Michael Holzinger Serge Cosnier

We report the functionalization of multi-walled carbon nanotube (MWCNT) electrodes by oxidative electropolymerization of pyrrole monomers bearing pyrene and N-hydroxysuccinimide groups. Both polymers were applied to the immobilization and electrical wiring of Trametes versicolor laccase via chemical grafting or non-covalent binding. A "pseudo" host-guest interaction of polymerized pyrene with a...

2000
A. Curulli G. Palleschi A. CURULLI

Different kind of macrosensors have been assembled using several nonconducting electropolymerized films. Different techniques of film electropolymerization such as cyclic voltammetry and chronoamperometry are compared. Film function, including the prevention of interferences and fouling problems and immobilization of the enzymes are described and optimised. We have immobilized oxidase [1] and d...

Journal: :Anais da Academia Brasileira de Ciencias 2000
K Araki S de S Lima H Winnischofer

A relevant series of symmetric supramolecular porphyrins has been obtained by attaching four [RuII(bipy)2Cl] groups to the pyridyl substituents of meso-tetra(4-pyridyl)porphyrin and its metallated derivatives. These compounds display a rich electrochemistry and versatile catalytic, electrocatalytic and photochemical properties, associated with the ruthenium-bipyridine and the porphyrin complexe...

2013
Erika Herrera Calderon Milind Dangate Norberto Manfredi Alessandro Abbotto Matteo M. Salamone Riccardo Ruffo Claudio M. Mari

A new heteroarylene-vinylene donor-acceptor low bandgap polymer, the poly(DEHT-V-BTD), containing vinylene-spaced efficient donor (dialkoxythiophene) and acceptor (benzothiadiazole) moieties, is presented. Electropolymerization has been carried out by several electrochemical techniques and the results are compared. In particular, the pulsed potentiostatic method was able to provide layers with ...

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