Biocompatible responsive polypyrrole/GO nanocomposite coatings for biomedical applications

Kumar, A. Madhan; Suresh, Bharathi; Ramakrishna, Suresh; Kim, Kye-Seong

doi:10.1039/c5ra14464g

Cited by 37 publications

(16 citation statements)

References 35 publications

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“…It is also evident that bare Al specimen showed the highest i corr (1.426 × 10 −5 A cm −2 ) and lowest E corr (− 0.752 V) values amongst the investigated samples. Since the corrosion current density is directly proportional to the corrosion rate, a lower i corr value generally signifies a higher corrosion resistant behavior [27]. Concerning the bare, i corr values of anodized samples decrease by more than one order of magnitude.…”

Section: Structural Analysismentioning

confidence: 98%

Influence of Organic Acids on the Surface and Corrosion Resistant Behavior of Anodized Films on AA2024 Aerospace Alloys in Artificial Seawater

et al. 2019

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This study aims to evaluate the influence of dicarboxylic acids (oxalic, malonic and succinic acid) used in anodization bath on the surface and corrosion resistant performance of anodized films on AA2024 aerospace grade alloys. The surface morphology, topography, composition and structure of anodized samples were examined by scanning electron microscopy, optical profilometer, X-ray diffraction and attenuated total reflectance-infrared techniques. Characterization results revealed the effect of dicarboxylic acids addition on the anodized film's surface with important changes. X-ray Photoelectron Spectroscopic analysis confirmed the presence of carboxylic groups on the porous anodized layer processed in anodization bath containing succinic acid. The electrochemical corrosion tests specified a solid relationship between the corrosion resistance and the surface microstructure of the anodized layer processed in different dicarboxylic acids.

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Section: Structural Analysismentioning

confidence: 98%

Influence of Organic Acids on the Surface and Corrosion Resistant Behavior of Anodized Films on AA2024 Aerospace Alloys in Artificial Seawater

et al. 2019

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“…316L SS coated with PPy plus CNTs displayed corrosion potential better than uncoated 316L SS when both alloys placed in simulated body fluid (SBF) [107]. Kumar [108]. Bilayer coatings by electropolymerisation of PPy on 316L SS followed by the electrodeposition of porous strontium hydroxyapatite (Sr-HA) were successfully developed.…”

Section: A Polypyrrole (Ppy) and Ppy-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

Radhi

Hadi

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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“…It can be found in three configurations: (i) unoxidized pure graphene sheets, (ii) graphene oxide (GO), and (iii) reduced graphene oxide (rGO). For example, Kumar et al used GO to functionalize the biopolymer polypyrrole to serve as a coating for implants with improved biocompatible characteristics [43].…”

Section: Nanocomposites With Carbon-based Nanofillersmentioning

confidence: 99%

A Comprehensive Review on Bio-Nanomaterials for Medical Implants and Feasibility Studies on Fabrication of Such Implants by Additive Manufacturing Technique

Velu

Calais

Jayakumar³

et al. 2019

Materials

101

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Nanomaterials have allowed significant breakthroughs in bio-engineering and medical fields. In the present paper a holistic assessment on diverse biocompatible nanocomposites are studied. Their compatibility with advanced fabrication methods such as additive manufacturing for the design of functional medical implants is also critically reviewed. The significance of nanocomposites and processing techniques is also envisaged comprehensively in regard with the needs and futures of implantable medical device industries.

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Biocompatible responsive polypyrrole/GO nanocomposite coatings for biomedical applications

Abstract: Hybrid implant coating materials composed of at least two constituents of different chemistry, functionality, and biocompatibility have attracted attention in a wide range of biomedical applications.

Cited by 37 publications

References 35 publications

Influence of Organic Acids on the Surface and Corrosion Resistant Behavior of Anodized Films on AA2024 Aerospace Alloys in Artificial Seawater

Influence of Organic Acids on the Surface and Corrosion Resistant Behavior of Anodized Films on AA2024 Aerospace Alloys in Artificial Seawater

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

A Comprehensive Review on Bio-Nanomaterials for Medical Implants and Feasibility Studies on Fabrication of Such Implants by Additive Manufacturing Technique

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