发光
生物传感器
自体荧光
化学
纳米颗粒
发光测量
纳米技术
持续发光
光化学
荧光
材料科学
光电子学
物理
光学
热释光
作者
Juan Li,Xiaolin Huang,Xu Zhao,Lijian Chen,Xiu‐Ping Yan
标识
DOI:10.1002/anie.202011553
摘要
Abstract Persistent luminescent nanoparticles (PLNPs) with intrinsic stimuli‐responsive properties are desirable because of no autofluorescence background and natural responsive luminescence. However, the stimuli‐responsive features of pure PLNPs have been unexplored. Here we show a facile one‐pot hydrothermal synthesis of green‐emitting Zn 2 GeO 4 :Mn 2+ ,Pr 3+ nanoparticles (ZGMP) with regular shape, uniform size and good afterglow luminescent performance. We also report the pH stimuli‐responsive luminescent behavior of ZGMP and its possible mechanism. Taking the intriguing feature of pH responsive persistent luminescence, we explore ZGMP as autofluorescence‐free probes to achieve stimuli‐activated signal switch for biosensing by integrating enzyme catalysis reaction mediated pH modulation. The pH‐responsive persistent luminescence also makes ZGMP promising for high‐level information encryption.
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