Orthopedic implants provide an avascular surface for microbial attachment and biofilm formation, impeding the entry of immune cells and the diffusion of antibiotics. The above is an important cause of dental and orthopedic implant-associated infection (IAI). For the prevention and treatment of IAI, the drawbacks of antibiotic resistance and surgical treatment are increasingly apparent. Due to their outstanding biological properties such as biocompatibility, immunomodulatory effects, and antibacterial properties, graphene-based nanomaterials (GBNs) have been applied to bone tissue engineering to deal with IAI, and in particular have great potential application in drug/gene carriers, multi-functional platforms, and coating forms. Here we review the latest research progress and achievements in GBNs for the prevention and treatment of IAI, mainly including their biomedical applications for antibacterial and immunomodulation effects, and for inducing osteogenesis. Furthermore, the biosafety of graphene family materials in bone tissue regeneration and the feasibility of clinical application are critically analyzed and discussed.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d2bm01507b | DOI Listing |
J Orthop Surg Res
January 2025
Hamidiye Medicine Faculty, Department of Medical Biology, University of Health Sciences, Istanbul, Türkiye.
Background: Despite their biocompatibility, metal implants are susceptible to infections, leading to implant failure and patient complications. The purpose of this study was to investigate the antibacterial potential of antibiotic-coated titanium and stainless steel implants.
Methods: The study was designed as an experimental in vitro study, and it was conducted at the Department of Immunology of the University of Health Sciences, Istanbul/ Turkiye in January and February 2024.
Colloids Surf B Biointerfaces
December 2024
College of Chemical Engineering, Xinjiang Normal University, 102 Xinyi Road, Urumqi 830054, P.R. China. Electronic address:
Infection and insufficient osseointegration are the primary factors leading to the failure of titanium-based implants. Surface coating modifications that combine both antibacterial and osteogenic properties are commonly employed strategies. However, the challenge of achieving rapid antibacterial action and consistent osteogenesis with these coatings remains unresolved.
View Article and Find Full Text PDFHeliyon
January 2025
D. Serikbayev East Kazakhstan Technical University, Oskemen, 070000, Kazakhstan.
J Orthop Res
December 2024
Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois, USA.
Periprosthetic joint infection (PJI) is a leading cause and major complication of joint replacement failure. As opposed to standard-of-care systemic antibiotic prophylaxis for PJI, we developed and tested titanium femoral intramedullary implants with titania nanotubes (TNTs) coated with the antibiotic gentamicin and slow-release agent chitosan through electrophoretic deposition (EPD) in a mouse model of PJI. We hypothesized that these implants would enable local gentamicin delivery to the implant surface and surgical site, effectively preventing bacterial colonization.
View Article and Find Full Text PDFBiomaterials
December 2024
Department of Orthopedics, The First Affiliated Hospital of Naval Medical University: Changhai Hospital, Shanghai, 200433, China. Electronic address:
Bacterial implant-associated infections predominantly contribute to the failure of prosthesis implantation. The local biofilm microenvironment (BME), characterized by its hyperacidic condition and high hydrogen peroxide (HO) level, inhibits the host's immune response, thereby facilitating recurrent infections. Here, a Janus PEGylated CuS nanoparticle (CuPen) armed engineered Lactobacillus casei (L.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!