Conducting polymers: an emerging field of biosensors

Borole, D. D.; Kapadi, U. R.; Mahulikar, Pramod P.; Hundiwale, D. G.

doi:10.1163/156855506775526205

Cited by 50 publications

(31 citation statements)

References 51 publications

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“…The applications of both conducting polymer and CNT in chemical, gas, and biosensors have been widely demonstrated in literature, and there are excellent reviews on this topic [2,[123][124][125][126][127][128][129][130][131][132][133][134][135][136]. The expected synergetic effect of PANI-CNT composites has been a motivating factor to do research on sensors, exploiting the mechanical stability of CNT and the redox properties of PANI.…”

Section: Sensorsmentioning

confidence: 99%

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

132

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Abstract:The key developments in polyaniline-carbon nanotube (PANI-CNT) composites are reviewed. Apart from in situ chemical polymerization and electrochemical deposition, a number of interesting approaches including the use of aniline functionalized CNTs and ultrasound/microwave/γ-radiation initiated polymerization have been used in the preparation of composites. The structure and properties of these composites have been investigated by a variety of techniques including absorption, infrared (IR), Raman, X-ray photoelectron spectroscopy methods, scanning electron and scanning probe microscopy techniques, cyclic voltammetry, and thermogravimetry. The experimental results indicate favorable interaction between PANI and CNTs. The CNT content in these composites controls their conductive, mechanical, and thermal properties. The most interesting characteristic is their easy dispersibility in aqueous solution. The performance evaluation studies of PANI-CNT composites in a number of applications including supercapacitors, fuel cells, sensors, and actuators are highlighted.

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Section: Sensorsmentioning

confidence: 99%

Polyaniline-carbon nanotube composites

Gajendran

Saraswathi

2008

Pure and Applied Chemistry

132

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“…[16] Moreover, these conducting materials possess a good biocompatibility in vitro as well as in vivo. [17][18][19] Studies on the cells cultured on conducting polymeric substrates have shown positive cellular influence in supporting and modulating some kinds of tissue regeneration, including the nerve, [20][21][22] skin, [23] cardiac myoblasts, [24,25] skeletal muscle cells, [26,27] and bone tissue. [28,29] Scaffold properties of CS-Gel composite, [30] Gel/ PANI composite, [24] Gel/HA composite, [31] as well as CS-Gel/nHA composite [22] have been studied before separately.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of chitosan–gelatin/nanohydroxyapatite–polyaniline composite with potential application in tissue engineering scaffolds

Azhar

Olad

Salehi

2014

Designed Monomers and Polymers

114

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In this study to further improve surface characteristics of tissue engineering scaffolds, a novel composite based on chitosan-gelatin/nanohydroxyapatite-polyaniline (CS-Gel/nHA-PANI) was prepared by blending the synthesized nHA and PANI with chitosan and gelatin solution followed by lyophilization technique. The prepared composite scaffold was characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy techniques. The effects of nHA and PANI on the physicochemical properties of the scaffold including swelling ratio, density, biodegradation, biomineralization, and mechanical behavior were investigated. The composite scaffold was highly porous with the mean pore size of 200 μm. Compared with CS-Gel and CS-Gel/nHA scaffolds, the CS-Gel/nHA-PANI scaffold exhibited lower degradation rate and higher biomineralization and mechanical strength. Preliminary evaluation of the biocompatibility and cytotoxicity of the CS-Gel/nHA-PANI composite scaffold was performed by MTT assay using bovine leukemia virus fetal lamb kidney cell line (BLV-FLK) and then cell attachment studies were assessed using dental pulp stem cells. Results indicated no toxicity, and cells attached and proliferated on the pore surfaces of the scaffold. These findings suggested that the developed scaffold possess the prerequisites and can be used as a scaffold for hard tissues regeneration.

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“…So far, these nanoparticles have been widely incorporated into various types of advanced polymers such as high-temperature polymers [12][13][14] and electrically conducting polymers. [15][16][17] Poly(3,4-ethylenedioxythiophene) (PEDOT) as one of the most successful conducting polymers seems to be a good choice for the deposition of Ag NP's. PEDOT polymer has a number of significant characteristics such as excellent environmental stability, high conductivity, and transparency in thin oxidized films.…”

Section: Introductionmentioning

confidence: 99%

Chemical synthesis of PEDOT/Ag nanocomposites via emulsion technique in silver colloid

Behniafar

Yousefzadeh

2014

Designed Monomers and Polymers

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An efficient route is used to prepare poly(3,4-ethylenedioxythiophene)/silver nanocomposite by chemical oxidative polymerization of 3,4-ethylenedioxythiophene monomer in Ag colloidal medium through emulsion technique using iron (III) p-toluenesulfonate hexahydrate (Fe(OTs) 3 .6H 2 O) oxidant. Sodium dodecyl sulfate plays a dual role involving both as emulsifier of the polymerization medium and stabilizer of the simultaneously reduced Ag nanoparticles. To compare the results obtained, an Ag-unloaded PEDOT is also prepared analogously. The resulted samples are fully characterized by fourier transform infrared, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, UV/vis, and thermogravimetric analyses. No remarkable aggregation of Ag nanoparticles occurs during the polymerization reaction. Moreover, average particle size of the incorporated Ag is found to be <10 nm.

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Conducting polymers: an emerging field of biosensors

Cited by 50 publications

References 51 publications

Polyaniline-carbon nanotube composites

Polyaniline-carbon nanotube composites

Fabrication and characterization of chitosan–gelatin/nanohydroxyapatite–polyaniline composite with potential application in tissue engineering scaffolds

Chemical synthesis of PEDOT/Ag nanocomposites via emulsion technique in silver colloid

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