Fig. 1From: Quercetin-loaded mesoporous nano-delivery system remodels osteoimmune microenvironment to regenerate alveolar bone in periodontitis via the miR-21a-5p/PDCD4/NF-κB pathwayCharacterization of Quercetin/MBG nano-delivery system. A Scheme of preparation protocol for MBG and Quercetin/MBG. B–D Visual inspection, TEM, and particle size distribution diagram of MBG and Quercetin/MBG. E Wide-angle and wide-angle XRD of MBG. F FITR of MBG and Quercetin/MBG. G Drug release curve of Quercetin/MBGBack to article page