Novel conductive PANI/hydrophilic thiacalix[4]arene nanocomposites: synthesis, characterization and investigation of properties

Norouzian, Rafieh‐Sadat; Lakouraj, Moslem Mansour; Zare, Ehsan Nazarzadeh

doi:10.1007/s10118-014-1402-4

“…Besides, PANI has extensively been studied in the field of anticorrosion [127]- [129]. However, PANI has some disadvantages that restrict its application including the difficult solubility in the majority of the available solvents, and poor processability [130], [131]. Even though studies indicated that PANI promotes cell ingrowth and proliferation, recent studies showed an opposite behaviour.…”

Section: B Polyaniline (Pani) and Pani-based Compositesmentioning

confidence: 99%

A Review on the Latest Developments of Conducting Polymer and Composite Coatings for Enhancing Biocompatibility and Corrosion Resistance of Metallic Biomedical Implants

Mohammed

¹

,

Radhi

²

,

Hadi

³

2021

EJERS

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The utilisation of metals and alloys in the biomedical field was and is still of immense importance for human life. Typically, the materials used for metallic biomedical applications, particularly those are implanted in vivo, provide appropriate mechanical and biological properties that allow them to accomplish the purpose for which they are used. Nonetheless, there are some inherent limitations impede the optimal use of these materials. One of the most crucial determinants is corrosion, which results in several other problems such as the formation of toxic substances that can not only cause necrosis of the cells attached to the implant, these toxins could also be carried by blood into body tissues and organs. This in turn leads to dire consequences on patient's life. Although a wide variety of approaches may be available to address the corrosion issue, it is alleged that coating these metals and alloys with polymers, especially the conductive ones, is among the best strategies in this regard. This review will highlight the latest developments in using conductive polymers including polypyrrole, polyaniline, polythiophene and their composites in order to enhance biocompatibility, mechanical properties and most importantly corrosion protection performance of metallic implants. The findings obtained from coating 316L stainless steel, titanium and magnesium alloys, which have been widely manipulated in biomedical field as long and short-term implants, will be evaluated.

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“…5) [132]. Additionally, PANI electrical conductivity reduces in a long-term [131] and the weak thermostability and mechanical integrity [133], [134]. A number of strategies including re-doping with the functionalised organic acids, polymer copolymerisation, and the fabrication of the blends and composites with several materials have been established to overcome the reported limitations [135].…”

Section: B Polyaniline (Pani) and Pani-based Compositesmentioning

confidence: 99%

A Review on the Latest Developments of Conducting Polymer and Composite Coatings for Enhancing Biocompatibility and Corrosion Resistance of Metallic Biomedical Implants

Mohammed

¹

,

Radhi

²

,

Hadi

³

2021

EJENG

4

0

View full text Add to dashboard Cite

The utilisation of metals and alloys in the biomedical field was and is still of immense importance for human life. Typically, the materials used for metallic biomedical applications, particularly those are implanted in vivo, provide appropriate mechanical and biological properties that allow them to accomplish the purpose for which they are used. Nonetheless, there are some inherent limitations impede the optimal use of these materials. One of the most crucial determinants is corrosion, which results in several other problems such as the formation of toxic substances that can not only cause necrosis of the cells attached to the implant, these toxins could also be carried by blood into body tissues and organs. This in turn leads to dire consequences on patient's life. Although a wide variety of approaches may be available to address the corrosion issue, it is alleged that coating these metals and alloys with polymers, especially the conductive ones, is among the best strategies in this regard. This review will highlight the latest developments in using conductive polymers including polypyrrole, polyaniline, polythiophene and their composites in order to enhance biocompatibility, mechanical properties and most importantly corrosion protection performance of metallic implants. The findings obtained from coating 316L stainless steel, titanium and magnesium alloys, which have been widely manipulated in biomedical field as long and short-term implants, will be evaluated.

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“…Also, its electrical conductivity decreases over a long cycle time. 6 A number of approaches such as redoping with the functionalized organic acids, copolymerization with PANI derivatives or other polymers, and the preparation of the blends and nanocomposites with various materials have been developed to diminish the aforementioned disadvantages. 7 Polyaniline nanocomposites are one of the most promising ICPs nanocomposites showing an electrical conductivity by combining the PANI matrix with the conducting or insulating nanofillers.…”

Section: Introductionmentioning

confidence: 99%

“…However, PANI has some disadvantages, such as low solubility or insolubility in the most common solvents, infusibility, and weak processability. Also, its electrical conductivity decreases over a long cycle time . A number of approaches such as re-doping with the functionalized organic acids, copolymerization with PANI derivatives or other polymers, and the preparation of the blends and nanocomposites with various materials have been developed to diminish the aforementioned disadvantages …”

Section: Introductionmentioning

confidence: 99%

Progress in Conductive Polyaniline-Based Nanocomposites for Biomedical Applications: A Review

Zare‬

¹

,

Makvandi

²

,

Ashtari

³

et al. 2019

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Inherently conducting polymers (ICPs) are a specific category of synthetic polymers with distinctive electro-optic properties, which involve conjugated chains with alternating single and double bonds. Polyaniline (PANI), as one of the most well-known ICPs, has outstanding potential applications in biomedicine because of its high electrical conductivity and biocompatibility caused by its hydrophilic nature, low-toxicity, good environmental stability, and nanostructured morphology. Some of the limitations in the use of PANI, such as its low processability and degradability, can be overcome by the preparation of its blends and nanocomposites with various (bio)polymers and nanomaterials, respectively. This review describes the state-of-the-art of biological activities and applications of conductive PANI-based nanocomposites in the biomedical fields, such as antimicrobial therapy, drug delivery, biosensors, nerve regeneration, and tissue engineering. The latest progresses in the biomedical applications of PANI-based nanocomposites are reviewed to provide a background for future research.

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Novel conductive PANI/hydrophilic thiacalix[4]arene nanocomposites: synthesis, characterization and investigation of properties

Cited by 13 publications

References 48 publications

A Review on the Latest Developments of Conducting Polymer and Composite Coatings for Enhancing Biocompatibility and Corrosion Resistance of Metallic Biomedical Implants

A Review on the Latest Developments of Conducting Polymer and Composite Coatings for Enhancing Biocompatibility and Corrosion Resistance of Metallic Biomedical Implants

A Review on the Latest Developments of Conducting Polymer and Composite Coatings for Enhancing Biocompatibility and Corrosion Resistance of Metallic Biomedical Implants

Progress in Conductive Polyaniline-Based Nanocomposites for Biomedical Applications: A Review

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