Fig. 1From: Periodontal ligament stem cell-derived exosome-loaded Emodin mediated antimicrobial photodynamic therapy against cariogenic bacteriaCharacterization of PDL-Exo and Emo@PDL-Exo: a TEM micrograph of PDL-Exo (Scale bar = 100 nm), b TEM micrograph of Emo@PDL-Exo (Scale bar = 50 nm), c Flow cytometry analysis of Exo-specific marker CD81, d Total protein concentration of PDL-Exo, e Average particle size distribution of Emo@PDL-ExoBack to article page