An Oligopeptide-Protected Ultrasmall Gold Nanocluster with Peroxidase-Mimicking and Cellular-Imaging Capacities

oleh: Daoqing Fan, Jiale Ou, Ling Chen, Lichao Zhang, Zhiren Zheng, Haizhu Yu, Xiangming Meng, Manzhou Zhu

Format: Article
Diterbitkan: MDPI AG 2022-12-01

Deskripsi

Recent decades have witnessed the rapid progress of nanozymes and their high promising applications in catalysis and bioclinics. However, the comprehensive synthetic procedures and harsh synthetic conditions represent significant challenges for nanozymes. In this study, monodisperse, ultrasmall gold clusters with peroxidase-like activity were prepared via a simple and robust one-pot method. The reaction of clusters with H<sub>2</sub>O<sub>2</sub> and 3,3′,5,5′-tetramethylbenzidine (TMB) followed the Michaelis-Menton kinetics. In addition, in vitro experiments showed that the prepared clusters had good biocompatibility and cell imaging ability, indicating their future potential as multi-functional materials.