Polyaniline synthesis and its biosensor application

Tahir, Zarini Muhammad; Alocilja, Evangelyn C.; Grooms, Daniel L.

doi:10.1016/j.bios.2004.08.008

Cited by 142 publications

(66 citation statements)

References 23 publications

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“…[24][25][26] Among various conducting polymers, polyaniline (PANI) has been widely investigated due to its unique conduction mechanism and high environmental stability. 27 The composite of AuNPs-PANI exhibits both charge transfer effect and charge transfer induced conductance switching suitable for memory device. 28 However, composite of AuNPs-PANI system for biosensing has not yet much investigated.…”

Section: Introductionmentioning

confidence: 99%

Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties

Li¹,

Lin²,

Liu³

et al. 2008

j nanosci nanotechnol

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Gold nanoparticles (AuNPs) have been self-assembled onto electrochemically deposited polyaniline (PANI) films on indium-tin-oxide (ITO) coated glass plates to fabricate glucose biosensor. The covalent immobilization of glucose oxidase (GOx) in the near vicinity of gold nanoparticles has been obtained using N-ethyl-N -(3-dimethylaminopropyl) carbodiimide (EDC)/N-hydroxysuccinimide (NHS), chemistry between amino groups of PANI and COOH groups of GOx. These AuNPs-PANI/ITO and GOx/AuNPs-PANI/ITO composite films have been characterized using Fourier transform infra red (FTIR) and cyclic voltammtery (CV) techniques, respectively. The fast electron transfer from the modified PANI surface to electrode has been indicating by the observed increase in amperometric response current of these GOx/AuNPs-PANI/ITO bioelectrodes. These GOx/AuNPs-PANI/ITO bioelectrodes exhibit response time of 10 s, linearity from 50 to 300 mg/dl and show value of apparent Michaelis-Menten constant (K app m ) of 2.2 mM.

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Section: Introductionmentioning

confidence: 99%

Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties

Li¹,

Lin²,

Liu³

et al. 2008

j nanosci nanotechnol

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“…The stimulus as well as the response can be electrical, thermal, chemical, magnetic or other origin. The reason why smart fabrics have attracted interest throughout the world is because of their ability to be used in applications such as antimicrobial clothing [1], electrotherapy [2], health monitoring shirts [3], transferring of data in clothing, military applications [4] and biosensors [5].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activity of Nanostructured Polyaniline Combined With Mupirocin

Jotiram¹,

Prasad²,

Jakka³

et al. 2012

Nano BioMed ENG

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Nanostructured and conducting polymer polyaniline (PANI) is used in numerous applications in electrotherapy, electro-magnetic materials for monitoring health, antimicrobial clothing, data transfer in smart textiles, biosensors and for defense technology. An important criterion for all the above mentioned utilities is, producing polymeric conductive fibers. In the present study we prepared conducting PANI nanofibres combined with mupirocin, a topical antimicrobial agent, through a self-assembly process. The prepared polymer was then tested for the antibacterial properties against various Gram positive and Gram negative bacteria such as Streptococcus pyogenes, Staphylococcus epidermidis, Staphylococcus aureus and Escherichia coli. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to identify the chemical structure of the PANI nanofibres. The antibacterial properties were assessed by measuring the zones of inhibition. It was evident from these results that antimicrobial activity increased with increasing PANI and PANI combined with mupirocin (PANI-mupirocin) concentrations. It was also found that PANI-mupirocin has enhanced antimicrobial activity compared to PANI alone. This information might be useful to evaluate the potential use of nanostructured polyaniline in fabrics incorporated with antibacterial agents as a prophylactic use against bacterial skin infections in the near future.

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“…The AC impedance spectra presented by Nyquist plot in the presence of 0.5 M KNO 3 solution containing 5.0 mM [Fe(CN) 6 ] 3/4 are shown in Figure 4. Two characteristic parts are identified in the plot as a linear curve and a semicircular shape, which occurred at low and high frequencies, respectively.…”

Section: Electrochemical Impedance Studiesmentioning

confidence: 99%

“…The working electrode was either the bare GCE or Padpa/GCE modified electrode. The EIS measurements were conducted at an open circuit potential of 5.0 mM [Fe(CN) 6 ] 3/4 redox probe in the frequency range from 0.1 Hz to 100 kHz.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…They can also exert control over the parameters of the film thickness and homogeneity [2]. These novel PMEs may potentially find application in a wide range of technologies including, energy storage systems [3], membrane gas separation [4], electrocatalysis [5], and sensors [6]. The polymeric films can be further incorporated by some modifiers such as enzymes [7], nanoparticles [8] and polymer composite structures [9] to facilitate certain applications.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication and surface characterization of poly(4-aminodiphenylamine) film modified electrode and its application for lead and cadmium determination

Al-Hinaai

Al-Harthi

Khudaish

2014

SQU Journal for Science

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Poly(4-aminodiphenylamine), Padpa, film was synthesized electrochemically on a glassy carbon electrode by potentiodynamic repetitive cycling of 4-aminodiphenylamine (4-adpa) in 1.0 M HCl. The mechanistic steps involved the oxidation of the protonated monomer to diimine species followed by its dimerization to form the mono-charged radical intermediate, which was considered as the initiation step for the progress of polymerization. The electrochemical properties and surface morphology of the film modified electrode were characterized using electrochemical and various surface scanning techniques. The XPS data demonstrated the existence of =N bonding responsible for polymer formation, while the AFM image revealed a uniform and symmetrical fiber structure with low energy dissipation. The modified electrode was primarily applied as an environmental sensor for the simultaneous and selective determination of Cd 2+

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Polyaniline synthesis and its biosensor application

Cited by 142 publications

References 23 publications

Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties

Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties

Antibacterial Activity of Nanostructured Polyaniline Combined With Mupirocin

Fabrication and surface characterization of poly(4-aminodiphenylamine) film modified electrode and its application for lead and cadmium determination

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Polyaniline synthesis and its biosensor application

Cited by 142 publications

References 23 publications

Nanostructured CaWO4, CaWO4:Eu3+ and CaWO4:Tb3+ Particles: Sonochemical Synthesis and Luminescent Properties

Nanostructured CaWO4, CaWO4:Eu3+ and CaWO4:Tb3+ Particles: Sonochemical Synthesis and Luminescent Properties

Antibacterial Activity of Nanostructured Polyaniline Combined With Mupirocin

Fabrication and surface characterization of poly(4-aminodiphenylamine) film modified electrode and its application for lead and cadmium determination

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Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties

Nanostructured CaWO₄, CaWO₄:Eu³⁺ and CaWO₄:Tb³⁺ Particles: Sonochemical Synthesis and Luminescent Properties