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Corrosion in Mg-alloy biomedical implants-the strategies to reduce the impact of the corrosion inflammatory reaction and microbial activity

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Journal of Magnesium and Alloys 2022年第12期10卷 3306-3326页

作者： Soumya Saha Widya Lestari Caroline Dini Murni Nazira Sarian Hendra Hermawan Valentim A.R.Barão Cortino Sukotjo christos takoudis Department of Biomedical Engineering University of Illinois at ChicagoChicagoUnited States Fundamental Dental and Medical Sciences Department Kulliyyah of DentistryInternational Islamic University MalaysiaKuantanMalaysia Department of Prosthodontics and Periodontology Piracicaba Dental SchoolUniversity of Campinas(UNICAMP)PiracicabaBrazil Institute of Systems Biology(INBIOSIS) Universiti Kebangsaan MalaysiaBandar Baru BangiSelangor 43600Malaysia Department of Mining Metallurgical and Materials EngineeringLaval UniversityQuebec CityQC G1V 0A6Canada Department of Restorative Dentistry University of Illinois at Chicago College of DentistryChicagoUnited States Department of Chemical Engineering University of Illinois at ChicagoChicagoUnited States

The most common complication of orthopedic surgery is implant failure, which can result in catastrophic injury and a significant financial burden for patients. Implant failure can be caused by a variety of factors, the most common of which are peri–implant infection(or implantrelated infection), excessive inflammatory response which caused pain and aseptic loosening. Orthopedic surgeons now have a variety of options for treating these issues, including revision surgery, which has demonstrated to be effective. If excessive inflammatory reaction caused by the corrosion and peri–implant infection can be avoided, it will be of enormous social benefits. This review will provide a summary of corrosion and the inflammation reactions due to the corrosion and antimicrobial properties of Mg alloy-based implants covering both in vitro and in vivo studies. The strategies on hindering/overcoming the excessive inflammatory response and enhancing the antimicrobial activity are discussed in this review.

关键词： Mg-alloy implants review Corrosion and inflammation Microbial infection

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Collagen membrane functionalized with magnesium oxide via room-temperature atomic layer deposition promotes osteopromotive and antimicrobial properties

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Bioactive Materials 2023年第12期30卷 46-61页

作者： Soumya Saha Raphael Cavalcante Costa Mirela Caroline Silva Joao Matheus Fonseca-Santos Lin Chen Abhijit H.Phakatkar Harshdeep Bhatia Leonardo P.Faverani Valentim A.R.Barao Tolou Shokuhfar Cortino Sukotjo christos takoudis Department of Biomedical Engineering University of Illinois ChicagoChicagoUSA Department of Prosthodontics and Periodontology Piracicaba Dental SchoolUniversity of Campinas(UNICAMP)PiracicabaSao PauloBrazil Department of Diagnosis and Surgery Division of Oral and Maxillofacial Surgery and ImplantologySao Paulo State University(UNESP)School of DentistryAraçatubaSao PauloBrazil Department of Periodontics Center for Wound Healing and Tissue RegenerationCollege of DentistryUniversity of Illinois ChicagoChicagoUSA Department of Chemical Engineering University of Illinois ChicagoChicagoUSA Department of Restorative Dentistry University of Illinois Chicago College of DentistryChicagoUSA

Artificial bone grafting materials such as collagen are gaining interest due to the ease of production and ***,collagen must be supplemented with additional coating materials for improved ***,we report room-temperature atomic layer deposition(ALD)of MgO,a novel method to coat collagen membranes with *** techniques such as X-ray photoelectron spectroscopy,Raman spectroscopy,and electron beam dispersion mapping confirm the chemical nature of the *** electron and atomic force microscopies show the surface topography and morphology of the collagen fibers were not altered during the ALD of *** release of magnesium ions promotes bone growth,and we show the deposited MgO film leaches trace amounts of Mg when incubated in phosphate-buffered saline at 37◦*** coated collagen membrane had a superhydrophilic surface immediately after the deposition of *** film was not toxic to human cells and demonstrated antibacterial properties against bacterial ***,in vivo studies performed on calvaria rats showed MgO-coated membranes(200 and 500 ALD)elicit a higher inflammatory response,leading to an increase in angiogenesis and a greater bone formation,mainly for Col-MgO500,compared to uncoated *** on the characterization of the MgO film and in vitro and in vivo data,the MgO-coated collagen membranes are excellent candidates for guided bone regeneration.

关键词： coating magnesium atomic

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