This study investigates the effect of incorporation of one- or two-dimensional nanoparticles with distinct composition and morphology on the bioactivity of biodegradable, biocompatible polymer matrices. 0.2 wt% multiwalled carbon nanotubes, multiwalled graphene nanoribbons, graphene oxide nanoplatelets (GONPs), molybdenum disulfide nanoplatelets (MSNPs), or tungsten disulfide nanotubes (WSNTs) were uniformly dispersed in poly(lactic-co-glycolic acid) (PLGA) polymer. PLGA or nanoparticle-incorporated PLGA were then incubated with simulated body fluid (SBF) under physiological conditions for 1, 3, 7, or 14 days. Apatite collection on control and incorporated scaffolds was assessed. All groups showed apatite precipitate on the surface after 1 day of SBF incubation. After 14 days of SBF incubation, scaffolds incorporated with GONPs, MSNPs, or WSNTs showed significantly higher phosphate accumulation compared to PLGA scaffolds. Scaffolds incorporated with GONPs, MSNPs, or WSNTs should be studied in vivo to further investigate potential bioactivity, leading to enhanced integration and tissue repair at the bone–implant interface.
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