Advances in polyaniline-based nanocomposites

Singh, Pratibha; Shukla, Shipra

doi:10.1007/s10853-019-04141-z

Cited by 86 publications

(37 citation statements)

References 287 publications

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“…In the midst of CPs, polyaniline (PANI) has foremost place because of easy synthesis, unique acid base chemistry, good environmental stability, tunable electrical conductivity and biocompatibility [167,168]. Conducting polymer-metal nanocomposites, a new class of materials, offers device design possibility with new functionality, in which the optimized properties of both organic and inorganic have been exploited [169][170][171][172][173][174][175]. Many appealing studies have been reported in literatures based on nanocomposites of PANI with different metals such as PANI-Ag [176,177], PANI-Au [178][179][180], PANI-Pt [181][182][183] and PANI-Cu [184,185].…”

Section: Polyaniline-silver Nanocompositementioning

confidence: 99%

Electron Beam Induced Tailoring of Electrical Characteristics of Organic Semiconductor Films

et al. 2020

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Tailoring the characteristics of organic semiconductors including molecular semiconductor and conducting polymers is the frontline area of research for improving the performance of organic electronic devices. Electron beam treatment has been established as one of the easiest method in comparison to others like chemical doping, thermal processing, ozonolysis, UV and other ionizing radiation treatment, to tune the physico-chemical properties of organic semiconductors. High energy electron beam (EB) generated from an accelerators impinges energy to the material and causes several phenomena including doping, crosslinking, chain degradation, gas evolution, molecular structural modifications, oxidation and unsaturation. Such modifications lead to variation in electrical characteristics and consequently affect the overall device performances. In the present review we have focused on the different interaction processes of EB with organic semiconductors and its implications to tailor the performance of device comprising of it mainly gas sensors, field effect transistors, thermoelectric power generators and radiation dosimeters.

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Section: Polyaniline-silver Nanocompositementioning

confidence: 99%

Electron Beam Induced Tailoring of Electrical Characteristics of Organic Semiconductor Films

et al. 2020

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“…Actually, several inorganic nanomaterials have been used to dope into the polymer networks, such as PANi/Ni [18], PANi/Au [19], PANi/WO3 [20], PANi/Mn2O3 [21], PANi/MnO2 [22] and PANi/MWCNTs [8] nanocomposites. In general, these nanocomposites can be synthesized by different techniques including chemical, electrochemical, photochemical and mechano-chemical methods and these developed materials have been applied for many applications such as energy storage, electrochemical biosensors, electrochemical sensors, FET-based biosensors, and coating and metal protecting [1]. To apply of the inorganic nanomaterial/conducting polymer nanocomposites for development of electrochemical biosensors, these fabricated nanomaterials have to be coated onto the electrodes using a drop-casting and/or an electrochemical method insitu on the working electrode [2,23].…”

Section: Introductionmentioning

confidence: 99%

“…In recent decades, conducting polymers have been attracted the much attention of scientists worldwide for biosensing applications thanks to their unique properties [1][2][3][4]. Pure conducting polymers are formed in various structures such as nanowires, nanotubes and nano-thin films to obtain a large surface area and a high efficiency [5,6].…”

Section: Introductionmentioning

confidence: 99%

Multi-walled Carbon Nanotubes/Manganese Dioxide Nano- flowers-like/Polyaniline Nanowires Nanocomposite Modified Electrode: A New Platform for a Highly Sensitive Electrochemical Impedance DNA Sensor

Chu

Tran

et al. 2021

Preprint

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We describe in this report a development of label-free electrochemical DNA sensor based on a novel nanostructured electrode of multi-walled carbon nanotubes (MWCNTs)/ nano-flowers-like manganese dioxide (MnO2)/polyaniline nanowires (PANi NWs) nanocomposite. The nanocomposite was synthesized in-situ onto an interdigitated platinum microelectrode (Pt) using a combination of chemical and electrochemical synthesis methods: chemical preparation of MWCNTs/MnO2 and electropolymerization of PANi NWs. The fabricated MWCNTs/MnO2/PANi NWs was then used to develop a label-free electrochemical DNA sensor for a specific gene of Escherichia coli (E.coli) O157:H7 detection. The MWCNTs/MnO2/PANi NWs modified Pt electrode’s surface can facilitate for probe DNA strands immobilization and, therefore the electrochemical signal of the DNA sensors has been improved. The electrochemical impedance spectroscopy (EIS) measurements were conducted to investigate the output signals generated by the specific binding of probe and target DNA sequences. Obtained results indicated that the developed electrochemical biosensor can detect the target DNA in the linear range of 5 pM to 500 nM with a low limit of detection (LOD) at 4.42 × 10 –13 M. The research results demonstrated that the MWCNTs/MnO2/PANi NWs nanocomposite-based electrochemical DNA sensor has a great potential application to the development of highly sensitive and selective electrochemical DNA sensors to detect pathogenic agents.

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“…All the polymers obtained by the electrolysis are divided into three groups, i.e., electroconductive, electrochemically active, and inactive polymers. Polyaniline [11,12], polypyrrole [13], polythiophene [14], and their derivatives are mostly used in electrochemical sensors and biosensors as electroconductive polymers.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical DNA Sensor Based on the Copolymer of Proflavine and Azure B for Doxorubicin Determination

Porfireva

Evtugyn

2020

Nanomaterials

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A DNA sensor has been developed for the determination of doxorubicin by consecutive electropolymerization of an equimolar mixture of Azure B and proflavine and adsorption of native DNA from salmon sperm on a polymer film. Electrochemical investigation showed a difference in the behavior of individual drugs polymerized and their mixture. The use of the copolymer offered some advantages, i.e., a higher roughness of the surface, a wider range of the pH sensitivity of the response, a denser and more robust film, etc. The formation of the polymer film and its redox properties were studied using scanning electron microscopy and electrochemical impedance spectroscopy. For the doxorubicin determination, its solution was mixed with DNA and applied on the polymer surface. After that, charge transfer resistance was assessed in the presence of [Fe(CN)6]3−/4− as the redox probe. Its value regularly grew with the doxorubicin concentration in the range from 0.03 to 10 nM (limit of detection 0.01 nM). The DNA sensor was tested on the doxorubicin preparations and spiked samples mimicking blood serum. The recovery was found to be 98–106%. The DNA sensor developed can find application for the determination of drug residues in blood and for the pharmacokinetics studies.

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Advances in polyaniline-based nanocomposites

Cited by 86 publications

References 287 publications

Electron Beam Induced Tailoring of Electrical Characteristics of Organic Semiconductor Films

Electron Beam Induced Tailoring of Electrical Characteristics of Organic Semiconductor Films

Multi-walled Carbon Nanotubes/Manganese Dioxide Nano- flowers-like/Polyaniline Nanowires Nanocomposite Modified Electrode: A New Platform for a Highly Sensitive Electrochemical Impedance DNA Sensor

Electrochemical DNA Sensor Based on the Copolymer of Proflavine and Azure B for Doxorubicin Determination

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