Laser-assisted production of HAp-coated zirconia structured surfaces for biomedical applications

Faria, D.; Henriques, Bruno; Souza, A.C.; Silva, F.S.; Carvalho, Ó.

doi:10.1016/j.jmbbm.2020.104049

Cited by 31 publications

(17 citation statements)

References 88 publications

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“…The friction test of laser-treated and subsequent deposition of a HAp-coated zirconia reveals superb adhesion of HAp coating on textured zirconia surface. In addition, the bioactive coating reliability does not concede through implant insertion [70]. Figure 5 illustrates the SEM images of HAp-coated zirconia textured surface after the friction tests against bone and the subsequent EDS spectra of evident zones, Z1 and Z2.…”

Section: Lst On Zirconia For Biomedical Applicationmentioning

confidence: 99%

Laser Surface Texturing for Biomedical Applications: A Review

et al. 2021

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For generating a texture or pattern on a work surface, one of the emerging processes is laser surface texturing (LST). It is an effective method for producing texture on a work surface. Literature shows that various lasers have been applied to generate textures on the surface of work materials. Recently, LST has shown tremendous potential in the field of biomedical applications. Applying the LST process, the efficacy of the biomaterial has been drastically improved. This paper presents an in-depth review of laser surface texturing for biomedical applications. The effect of LST on important biomaterial has been thoroughly studied; it was found that LST has extreme potential for surface modification of biomaterial and can be utilized for biomedical applications.

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Section: Lst On Zirconia For Biomedical Applicationmentioning

confidence: 99%

Laser Surface Texturing for Biomedical Applications: A Review

et al. 2021

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“…In addition, this technique provides a green synthesis of AgNPs 49 as it eliminates the requirement of any kind of chemical reducers and stabilizers in its process. 50 Although several reports have investigated the use of both laser texturing and functional nanoparticle immobilization as individual processing methods onto different metallic 51 and polymeric surfaces, 38 comparatively, only a few studies have investigated their combination. 52 Therefore, this study aims to explore the use of an all laser-based approach to both create a hierarchical nanostructure and immobilize AgNPs directly onto Ti implant surfaces to effectively increase both osseointegration and antimicrobial properties.…”

Section: ■ Introductionmentioning

confidence: 99%

“…The photo and thermal energy of the laser beam has the ability to reduce and immobilize many silver ionic compounds to metallic nanoparticles directly onto target metallic surfaces. In addition, this technique provides a green synthesis of AgNPs as it eliminates the requirement of any kind of chemical reducers and stabilizers in its process . Although several reports have investigated the use of both laser texturing and functional nanoparticle immobilization as individual processing methods onto different metallic and polymeric surfaces, comparatively, only a few studies have investigated their combination .…”

Section: Introductionmentioning

confidence: 99%

Laser-Assisted Nanotexturing and Silver Immobilization on Titanium Implant Surfaces to Enhance Bone Cell Mineralization and Antimicrobial Properties

et al. 2022

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Despite the great advancement and wide use of titanium (Ti) and Ti-based alloys in different orthopedic implants, device-related infections remain the major complication in modern orthopedic and trauma surgery. Most of these infections are often caused by both poor antibacterial and osteoinductive properties of the implant surface. Here, we have demonstrated a facile two-step laser nanotexturing and immobilization of silver onto the titanium implants to improve both cellular integration and antibacterial properties of Ti surfaces. The required threshold laser processing power for effective nanotexturing and osseointegration was systematically determined by the level of osteoblast cells mineralized on the laser nanotextured Ti (LN−Ti) surfaces using a neodymium-doped yttrium aluminum garnet laser (Nd:YAG, wavelength of 1.06 μm). Laser processing powers above 24 W resulted in the formation of hierarchical nanoporous structures (average pore 190 nm) on the Ti surface with a 2.5-fold increase in osseointegration as compared to the pristine Ti surface. Immobilization of silver nanoparticles onto the LN−Ti surface was conducted by dip coating in an aqueous silver ionic solution and subsequently converted to silver nanoparticles (AgNPs) by using a low power laser-assisted photocatalytic reduction process. Structural and surface morphology analysis via XRD and SEM revealed a uniform distribution of Ag and the formation of an AgTi-alloy interface on the Ti surface. The antibacterial efficacy of the LN−Ti with laser immobilized silver (LN− Ti/LI−Ag) was tested against both Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. The LN− Ti/LI−Ag surface was observed to have efficient and stable antimicrobial properties for over 6 days. In addition, it was found that the LN−Ti/LI−Ag maintained a cytocompatibility and bone cell mineralization property similar to the LN−Ti surface. The differential toxicity of the LN−Ti/LI−Ag between bacterial and cellular species qualifies this approach as a promising candidate for novel rapid surface modification of biomedical metal implants.

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“…Em março de 2020, a pandemia da COVID-19 forçou as Instituições de Ensino Superior (IES) a suspenderem todas as atividades letivas presenciais, após a determinação de estado de emergência, incontáveis decretos e resoluções internas (ASSEMBLEIA DA REPÚBLICA, 2020). Perante o cenário de incertezas e da necessidade da tomada rápida de decisões, foi necessário recorrer à comunicação on-line através de vídeochamadas (Microsoft teams, Zoom, Skype, entre outras), sendo imposto a professores e estudantes que se adaptassem muito rapidamente a essa nova realidade e ao ensino remoto emergencial (HOD-GES et al, 2020;MOREIRA;HENRIQUES;BARROS, 2021).…”

Section: Introductionunclassified

Pesquisas E Inovações Em Engenharias

2022

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O livro "PESQUISAS E INOVAÇÕES EM ENGENHARIAS" foi organizado com o objetivo de reunir e apresentar resultados de pesquisas e interesses de profissionais e estudantes de engenharias e áreas afins de vários lugares do Brasil. Encontramos artigos de revisão, prospecções, estudos de casos e pesquisas experimentais de grande relevância para a literatura científica.Agradecemos a Editora Inovar e às equipes envolvidas nesse projeto pelo empenho e confiança.Desejamos a todos uma excelente leitura.

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Laser-assisted production of HAp-coated zirconia structured surfaces for biomedical applications

Cited by 31 publications

References 88 publications

Laser Surface Texturing for Biomedical Applications: A Review

Laser Surface Texturing for Biomedical Applications: A Review

Laser-Assisted Nanotexturing and Silver Immobilization on Titanium Implant Surfaces to Enhance Bone Cell Mineralization and Antimicrobial Properties

Pesquisas E Inovações Em Engenharias

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