Preparation and Characterization of Polyaniline Nanotube

Hassan, Hazem

doi:10.11648/j.ajac.s.2015030301.18

Cited by 8 publications

(4 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the course of COP, PANI grew as small particles that fully cover BC/PVAN nanofibers, resulting in a rough texture (Figure c). PVAN may induce the dispersion of these small particles, , preventing the aggregation of a cauliflower-like structure typically obtained when the reaction is conducted at low pH and in the presence of strong oxidants such as APS . BC/PVAN is therefore coated with PANI, consisting of a nanorod-like structures that can be easily recognized within the interspaces of the porous BC nanocomposite network, as exemplified in the circled area in Figure c.…”

Section: Resultsmentioning

confidence: 99%

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

Rebelo

Liu

et al. 2019

ACS Biomater. Sci. Eng.

View full text Add to dashboard Cite

Microbial cellulose paper treated with polyaniline and carbon nanotubes (PANI/CNTs) can be attractive as potential flexible capacitors in terms of further improvements to the conductivity and thermal resistance. The interactions between PANI and CNTs exhibit new electrochemical features with increased electrical conductivity and enhanced capacity. In this study, PANI/CNTs was incorporated into a flexible poly(4-vinylaniline)-grafted bacterial cellulose (BC/PVAN) nanocomposite substrate for further functionalization and processability. PANI/CNTs coatings with a nanorod-like structure can promote an efficient ion diffusion and charge transfer, with a significant enhancement of the electrical conductivity after CNTs reinforcement of 1 order of magnitude up to (1.0 ± 0.3) × 10–1 S·cm–1. An escalating improvement of the double charge capacity (∼54 mF) of the grafted BC nanocomposites was also detected through electrochemical analysis. The multilayered electrical coatings also reinforce the thermal resistance, preventing anticipated thermal degradation of the BC substrate. The cell viability and differentiation assays using neural stem cells (SVZ cells) testified to the cytocompatibility of the grafted BC nanocomposites, while inducing neuronal differentiation over 7 days of culture with a neurite that was 77 ± 24.7 μm long. This is promising for meeting the requirements in the construction of high-performance bioelectronic devices that can actively interface biologically, providing a friendly environment for cells while tuning the device performance.

show abstract

Section: Resultsmentioning

confidence: 99%

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

Rebelo

Liu

et al. 2019

ACS Biomater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…On the other hand, SEM micrograph for higher Bi 2 Te 3 content (50%) (Figure 3c,d) indicates the granular structure of PANI due to the increase in Bi 2 Te 3 nanoparticles, this implies that no polymer chain entanglement during the polymerization process 26 . This means that the starting materials and the preparation conditions are recognized as the critical factor in forming the compact, continuous, and overgrowth nanostructures of PANI compositions 41,42 . Conversely, the presence of Bi 2 Te 3 during the fabrication process might also have an impact on the uneven flaky structure.…”

Section: Resultsmentioning

confidence: 99%

γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications

Shalaby

Abdelhaleem

Taha

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

The (PANI) 1Àx (Bi 2 Te 3 ) x composites were successfully synthesized. These composites have a simple physical combination of intrinsic conducting polymer and nanocrystal topological insulator materials which are promising new materials for unusual applications. The influence of γ-irradiation (100 kGy doses) on the performance of the (PANI) 1Àx (Bi 2 Te 3 ) x composites was described by atypical techniques to assess the radiation hardness of the samples. X-ray diffraction and Raman spectroscopy measurements show the semi-crystalline phases, the other structural parameters, and the phonon modes. The compositional analysis and the morphological properties were investigated by energy-dispersive X-ray, while transmission electron microscopy imaging confirmed the morphology of the dopants of Bi 2 Te 3 nanoparticles into the polyaniline (PANI) matrix, which shows the accumulation of the particles. Thermogravimetric analysis figured out the degradation behavior of the compositions. The representative electron spin resonance (ESR) signal exhibits a narrow single-line ESR spectrum for PANI/Bi 2 Te 3 nanoparticle concentrations. (PANI) 1Àx (Bi 2 Te 3 ) x illustrates unexpected ferromagnetic behavior that confirms the magnetic performance of the samples without introducing any magnetic dopants. The obtained materials showed promising performance for using such hybrid materials as a positive temperature coefficient thermistor.

show abstract

“…The FTIR bands situated at 1300 and 1110 cm −1 are attributed to the C–N benzenoid and C–H stretching vibration of polyaniline, respectively [ 60 ]. The FTIR peaks located at 1562 and 1483 cm −1 correspond to C=N and C=C stretching vibration modes of benzenoid of polyaniline, respectively [ 61 , 62 ]. The characteristic bonds on the surface of the nanomaterial confirm the formation of polyaniline.…”

Section: Resultsmentioning

confidence: 99%

Non-Enzymatic Glucose Sensors Composed of Polyaniline Nanofibers with High Electrochemical Performance

Sobahi,

Alam,

Imran

et al. 2024

Molecules

View full text Add to dashboard Cite

The measurement of glucose concentration is a fundamental daily care for diabetes patients, and therefore, its detection with accuracy is of prime importance in the field of health care. In this study, the fabrication of an electrochemical sensor for glucose sensing was successfully designed. The electrode material was fabricated using polyaniline and systematically characterized using scanning electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and UV-visible spectroscopy. The polyaniline nanofiber-modified electrode showed excellent detection ability for glucose with a linear range of 10 μM to 1 mM and a detection limit of 10.6 μM. The stability of the same electrode was tested for 7 days. The electrode shows high sensitivity for glucose detection in the presence of interferences. The polyaniline-modified electrode does not affect the presence of interferences and has a low detection limit. It is also cost-effective and does not require complex sample preparation steps. This makes it a potential tool for glucose detection in pharmacy and medical diagnostics.

show abstract

Preparation and Characterization of Polyaniline Nanotube

Cited by 8 publications

References 16 publications

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications

Non-Enzymatic Glucose Sensors Composed of Polyaniline Nanofibers with High Electrochemical Performance

Contact Info

Product

Resources

About

Preparation and Characterization of Polyaniline Nanotube

Cited by 8 publications

References 16 publications

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

Carbon Nanotube-Reinforced Poly(4-vinylaniline)/Polyaniline Bilayer-Grafted Bacterial Cellulose for Bioelectronic Applications

γ‐irradiation hardness investigations of (PANI)1−x(Bi2Te3)x composites for thermistor applications

Non-Enzymatic Glucose Sensors Composed of Polyaniline Nanofibers with High Electrochemical Performance

Contact Info

Product

Resources

About

γ‐irradiation hardness investigations of (PANI)_1−x(Bi₂Te₃)_x composites for thermistor applications