Electropolymerized polypyrrole silver nanocomposite coatings on porous Ti substrates with enhanced corrosion and antibacterial behavior for biomedical applications

Garcı́a, C.; Godinho, Vanda; Perez-Gonzalez, Clara; Torres, Yadir; Martín-Pedrosa, Fernando

doi:10.1016/j.mtchem.2023.101433

Cited by 15 publications

(9 citation statements)

References 109 publications

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“…The amorphous particle distribution of pure P2CA is contrasted with the semihexagonal shapes observed in the composite, a result of the intercalation of inorganic MnO 2 -Mn 2 O 3 within the polymer network. This enhancement in morphological behavior is strongly correlated with improved electrical properties, positioning the nanocomposite as a potential candidate for application in electrical devices geared towards energy conversion or storage [29,30].…”

Section: Resultsmentioning

confidence: 99%

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Alkallas,

Esayed,

Ben Gouider Trabelsi

et al. 2024

Phys. Scr.

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A highly efficient MnO2-Mn2O3/Poly-2-methylaniline (MnO2-Mn2O3/P2MA) hexagonal nanocomposite is synthesized using a one-pot technique involving oxidation polymerization. The hexagonal morphology and crystalline nature of this nanocomposite, as evidenced by the XRD pattern, affirm its exceptional characteristics. The electrical properties are assessed through charge/discharge behavior and cyclic voltammetry curves, elucidating the storage capabilities of this pseudo supercapacitor using different electrolytes NaOH and HCl. The fabricated supercapacitor exhibits impressive efficiency values of 22 F/g in a basic medium and a notably higher 72 F/g in an acidic medium at a current density of 0.2 A/g. Similarly, the power density values are calculated at 480 and 478 W.kg-1 for the basic and acidic electrolyte, correspondingly. In the basic medium, the series resistance (RS) and charge transfer resistance (RCT) are 5.2 and 0.7 Ω, respectively. In the acidic medium, these values are notably lower, with RS at 2.82 Ω and RCT at 0.2 Ω. Remarkably, even after 500 cycles, the supercapacitor stability remains high at 95% in both media, underscoring the enduring stability attributed to the oxides and polymer materials within the supercapacitor. The combination of cost-effectiveness, ease of fabrication, and potential for mass production positions this supercapacitor as a promising candidate for industrial applications of polymer-based supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Alkallas,

Esayed,

Ben Gouider Trabelsi

et al. 2024

Phys. Scr.

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“…On the other hand, porous c.p. Ti substrates were fabricated following the space-holder technique to achieve highly differentiated pore contents and pore size distributions according to the results previously published by the authors. − Then, hydrogels with 1 and 4% cross-linker were infiltrated on top of the c.p. Ti substrates using a heat-shrink tube and the hydroxyapatite formation capacity of infiltrated hydrogels was investigated.…”

Section: Methodsmentioning

confidence: 99%

Versatile Biodegradable Poly(acrylic acid)-Based Hydrogels Infiltrated in Porous Titanium Implants to Improve the Biofunctional Performance

Martínez,

Begines,

Pajuelo

et al. 2023

Biomacromolecules

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This research work proposes a synergistic approach to improve implants’ performance through the use of porous Ti substrates to reduce the mismatch between Young’s modulus of Ti (around 110 GPa) and the cortical bone (20–25 GPa), and the application of a biodegradable, acrylic acid-based polymeric coating to reduce bacterial adhesion and proliferation, and to enhance osseointegration. First, porous commercially pure Ti substrates with different porosities and pore size distributions were fabricated by using space-holder techniques to obtain substrates with improved tribomechanical behavior. On the other hand, a new diacrylate cross-linker containing a reduction-sensitive disulfide bond was synthesized to prepare biodegradable poly(acrylic acid)-based hydrogels with 1, 2, and 4% cross-linker. Finally, after the required characterization, both strategies were implemented, and the combination of 4% cross-linked poly(acrylic acid)-based hydrogel infiltrated in 30 vol % porosity, 100–200 μm average pore size, was revealed as an outstanding choice for enhancing implant performance.

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“…[147] Thus, PPy in combination with bioactive coatings, such as SH porous Ti substrates, could be beneficial for tuning mechanical properties (corrosion resistance and bone ingrowth, for instance) with enhanced antibacterial properties, which is especially helpful for restoring electrical conductivity of body tissues and infection-impaired healings. [149] Additive manufacturing of PPy and its composite hydrogels is highly conductive and biocompatible for sensing applications. For instance, Dutta et al demonstrated the use of a triple cross-linking strategy for the fabrication of GelMA/PPy bioink for electrical stimulation of stem cells toward bone regeneration [150] (Figure 9a).…”

Section: Polypyrrole and Its Nanocompositesmentioning

confidence: 99%

3D Printable Hydrogel Bioelectronic Interfaces for Healthcare Monitoring and Disease Diagnosis: Materials, Design Strategies, and Applications

Dutta,

Ganguly,

Randhawa

et al. 2024

Adv Materials Technologies

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In recent years, additive manufacturing tools, such as 3D printing, has gained enormous attention in biomedical engineering for developing ionotropic devices, flexible electronics, skin‐electronic interfaces, and wearable sensors with extremely high precision and sensing accuracy. Such printed bioelectronics are innovative and can be used as multi‐stimuli response platforms for human health monitoring and disease diagnosis. This review systematically discusses the past, present, and future of the various printable and stretchable soft bioelectronics for precision medicine. The potential of various naturally and chemically derived conductive biopolymer inks and their nanocomposites with tunable physico‐chemical properties is also highlighted, which is crucial for bioelectronics fabrication. Then, the design strategies of various printable sensors for human body sensing are summarized. In conclusion, the perspectives on the future advanced bioelectronics are described, which will be helpful, particularly in the field of nano/biomedicine. An in‐depth knowledge of materials design to functional aspects of printable bioelectronics is demonstrated, with an aim to accelerate the development of next‐generation wearables.

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Electropolymerized polypyrrole silver nanocomposite coatings on porous Ti substrates with enhanced corrosion and antibacterial behavior for biomedical applications

Cited by 15 publications

References 109 publications

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Versatile Biodegradable Poly(acrylic acid)-Based Hydrogels Infiltrated in Porous Titanium Implants to Improve the Biofunctional Performance

3D Printable Hydrogel Bioelectronic Interfaces for Healthcare Monitoring and Disease Diagnosis: Materials, Design Strategies, and Applications

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Electropolymerized polypyrrole silver nanocomposite coatings on porous Ti substrates with enhanced corrosion and antibacterial behavior for biomedical applications

Cited by 15 publications

References 109 publications

Basic and acidic electrolyte mediums impact on MnO2-Mn2O3/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Basic and acidic electrolyte mediums impact on MnO2-Mn2O3/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Versatile Biodegradable Poly(acrylic acid)-Based Hydrogels Infiltrated in Porous Titanium Implants to Improve the Biofunctional Performance

3D Printable Hydrogel Bioelectronic Interfaces for Healthcare Monitoring and Disease Diagnosis: Materials, Design Strategies, and Applications

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Product

Resources

About

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor

Basic and acidic electrolyte mediums impact on MnO₂-Mn₂O₃/Poly-2-methylaniline hexagonal nanocomposite pseudo-supercapacitor