Biological MWCNT/chitosan composite coating with outstanding anti-corrosion property for implants

Synthesis of mint leaf extract and mint-leaf-based NiO nanoparticles, coating of extract layers without and with NiO nanoparticles on copper through drop-casting, and their analysis for the corrosion prevention in saline water

“…23–25 In some cases, they are also used for the coating prevention of metals in combination with other materials to improve the performance of natural materials against corrosion. 26,27 However, the use of only natural materials for the protective coating of metals is rare (except by our research group). 28,29…”

“…[23][24][25] In some cases, they are also used for the coating prevention of metals in combination with other materials to improve the performance of natural materials against corrosion. 26,27 However, the use of only natural materials for the protective coating of metals is rare (except by our research group). 28,29 A natural material (mint leaf) is selected in the present work to coat Cu by drop-casting, and its performance against corrosion has been studied.…”

A sandwich amperometric immunosensor for the detection of fowl adenovirus group I based on bimetallic Pt/Ag nanoparticle-functionalized multiwalled carbon nanotubes

“…More importantly, Chi can covalently attach to MWCNTs via π–π interactions to form MWCNTs-Chi nanobiocomposites. This approach involves the incorporation of MWCNTs with a polymeric backbone, which is helpful for increasing the solubility of MWCNTs without decreasing their conductivity 28 ; this approach can not only synergistically promote electron conduction but also effectively immobilize biomolecules such as antibodies and maintain their bioactivity 29 . Based on the above advantages, MWCNTs-Chi nanobiocomposites as substrates provide a suitable microenvironment for immunosensors.…”

Correlations between the anti-corrosion properties and the photocatalytic behavior of epoxy coatings incorporating modified graphene oxide deposited on a zinc substrate

“…One of the efficient ways to avoid the oxidation of metals due to aggressive environmental effects is through coatings application on their surface. In the past few decades, a continuously increased interest has been observed in the preparation of sophisticated eco-friendly anti-corrosion coatings to substitute highly toxic chromate treatments 1,2 with intensied interest for silica, [3][4][5][6][7] titania, 8,9 biopolymers [10][11][12] and organic-based protective layers. 13 Among these, epoxy is a widespread polymer matrix for the protection of metal surfaces, due to its good physical barrier effect.…”