Mechanical and antibacterial behavior of multilayered geopolymer coatings on Ti6Al4V alloys

Rondinella, Alfredo; Furlani, Erika; Dell’Antone, Lorenzo; Marin, Elia; Boschetto, Francesco; Sordetti, Francesco; Lanzutti, A.; Andreatta, F.; Fedrizzi, L.; Maschio, S.

doi:10.1007/s10853-022-07767-8

Cited by 3 publications

(1 citation statement)

References 27 publications

(32 reference statements)

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“…The antimicrobial activity of geopolymer-based materials was investigated by Rondinella et al Here, a metakaolin-based geopolymer was used to form a multilayer coating on a prosthetic device made of a Ti 6 Al 4 V alloy. The developed coating showed antibacterial activity by limiting bacterial growth [106]. In turn, Hashimoto et al [107] verified the antimicrobial activity of metakaolin-based geopolymers immersed for 24 h in a copper chloride solution.…”

Section: Geopolymer Applications In Microbial Protectionmentioning

confidence: 95%

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Kudłacik-Kramarczyk,

Drabczyk,

Figiela

et al. 2023

Materials

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The initial predictions of the importance of geopolymers primarily assumed use mainly in the construction sector. However, as research progresses, it is becoming clear that these versatile materials demonstrate the ability to greatly exceed their original applications, as characterized in detail in this review article. To the best of our knowledge, there is no literature review concerning geopolymer materials that compiles the diverse applications of these versatile materials. This paper focuses on geopolymer applications beyond the construction industry. The surprising application potential of geopolymers in medicine has become a topic of particular interest. Therefore, considerable attention in this paper is devoted to characterizing the utility of these materials in tissue engineering, dentistry and drug delivery systems. Geopolymers not only have exceptional heat resistance and compressive strength, making them durable and resistant to manipulation (over five times less drug released from the geopolymer carrier compared to the commercial formulation), but also provide a robust solution for extended-release drug delivery systems, especially in opioid formulations. Their chemical stability, porous structure and ability to maintain structure after repeated regeneration processes speak to their potential in water treatment. Geopolymers, which excel in the energy industry as refractory materials due to their resistance to high temperatures and refractory properties, also present potential in thermal insulation and energy storage. It was demonstrated that geopolymer-based systems may even be 35% cheaper than conventional ones and show 70% lower thermal conductivity. In terms of protection against microorganisms, the possibility of modifying geopolymers with antimicrobial additives shows their adaptability, maintaining their effectiveness even under high-temperature conditions. Research into their use as anticorrosion materials is targeting corrosion-resistant coatings, with geopolymers containing graphene oxide showing particularly promising results. The multitude of potential applications for geopolymers in a variety of fields reflects their enormous potential. As research progresses, the scope of their possibilities continues to expand, offering innovative solutions to pressing global challenges.

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Section: Geopolymer Applications In Microbial Protectionmentioning

confidence: 95%

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Kudłacik-Kramarczyk,

Drabczyk,

Figiela

et al. 2023

Materials

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Recent Developments in the Production of Geopolymers from Biomass Ash

Adeleke,

Anosike-Francis,

Olosho

et al. 2023

2023 2nd International Conference on Multidisciplinary Engineering and Applied Science (ICMEAS)

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Geopolymer Materials for Bone Tissue Applications: Recent Advances and Future Perspectives

et al. 2023

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With progress in the bone tissue engineering (BTE) field, there is an important need to develop innovative biomaterials to improve the bone healing process using reproducible, affordable, and low-environmental-impact alternative synthetic strategies. This review thoroughly examines geopolymers’ state-of-the-art and current applications and their future perspectives for bone tissue applications. This paper aims to analyse the potential of geopolymer materials in biomedical applications by reviewing the recent literature. Moreover, the characteristics of materials traditionally used as bioscaffolds are also compared, critically analysing the strengths and weaknesses of their use. The concerns that prevented the widespread use of alkali-activated materials as biomaterials (such as their toxicity and limited osteoconductivity) and the potentialities of geopolymers as ceramic biomaterials have also been considered. In particular, the possibility of targeting their mechanical properties and morphologies through their chemical compositions to meet specific and relevant requirements, such as biocompatibility and controlled porosity, is described. A statistical analysis of the published scientific literature is presented. Data on “geopolymers for biomedical applications” were extracted from the Scopus database. This paper focuses on possible strategies necessary to overcome the barriers that have limited their application in biomedicine. Specifically, innovative hybrid geopolymer-based formulations (alkali-activated mixtures for additive manufacturing) and their composites that optimise the porous morphology of bioscaffolds while minimising their toxicity for BTE are discussed.

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Mechanical and antibacterial behavior of multilayered geopolymer coatings on Ti6Al4V alloys

Cited by 3 publications

References 27 publications

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Geopolymers: Advanced Materials in Medicine, Energy, Anticorrosion and Environmental Protection

Recent Developments in the Production of Geopolymers from Biomass Ash

Geopolymer Materials for Bone Tissue Applications: Recent Advances and Future Perspectives

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