Biomimetic nanoparticles combine antibacterial and immune effects in rat periodontitis
Published in Drugs development & discovery, Immunology, Journals, Nanomedicine.
Published October 27, 2026.
A study published October 26 in the International Journal of Oral Science investigates a biomimetic nanoparticle for experimental periodontitis. Yufei Tang and colleagues combined minocycline-loaded gelatin particles with a hybrid coating made from neutrophil and macrophage membranes.
The resulting system, NMm@MINO, released its antibiotic cargo in response to proteases. Laboratory tests reported more than 99% killing of Porphyromonas gingivalis and Staphylococcus aureus. Separate cellular assays found changes in macrophage inflammatory markers, increased bone-formation-related activity and reduced osteoclast formation.
In a ligature-induced rat periodontitis model assessed at days 3, 7 and 14, local treatment reduced inflammatory measures, improved collagen remodeling and limited alveolar bone loss. These findings suggest a delivery approach that addresses infection and host responses together.
The evidence remains preclinical. Short-term findings in rats do not establish durable periodontal regeneration, human safety or superiority to established dental care. The antibacterial results also apply to the tested laboratory conditions, rather than every organism within a complex human periodontal biofilm.