In this study, for the first time, Porphyromonas gingivalis, an anaerobic bacterium, was selected to synthesize carbon dots. The achieved P.gingivalis-carbon dots (Pg-CDs) exhibited strong fluorescence and high stability with capacity for dual function as Fe3+ sensor and intracellular imaging agent. The detection limit for Fe3+ was as low as 1.85µM. On the other hand, the prepared Pg-CDs were an excellent candidate for biosensor with high biocompatibility.

中文翻译：

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源自牙龈卟啉单胞菌厌氧菌的双功能碳点用于选择性检测 Fe 3+ 和生物成像

本研究首次选择厌氧菌牙龈卟啉单胞菌合成碳点。所获得的牙龈卟啉单胞菌-碳点（Pg-CDs）表现出强荧光和高稳定性，具有作为Fe3+传感器和细胞内显像剂的双重功能。Fe3+ 的检测限低至 1.85µM。另一方面，制备的 Pg-CDs 是具有高生物相容性的生物传感器的优秀候选者。