Water Triggered Synthesis of Highly Stable and Biocompatible 1D Nanowire, 2D Nanoplatelet, and 3D Nanocube CsPbBr 3 Perovskites for Multicolor Two-Photon Cell Imaging

作者：Avijit Pramanik, Shamily Patibandla, Ye Gao, Kaelin Gates, Paresh Chandra Ray · 发表于：JACS Au · 年份：2020 · DOI：10.1021/jacsau.0c00038 · 被引用次数：72 · 研究领域：Perovskite Materials and Applications、2D Materials and Applications、Quantum Dots Synthesis And Properties

High Resolution Image Download MS PowerPoint Slide Two-photon imaging in the near-infrared window holds huge promise for real life biological imaging due to the increased penetration depth. All-inorganic CsPbX 3 nanocrystals with bright luminescence and broad spectral tunability are excellent smart probes for two-photon bioimaging. But, the poor stability in water is a well-documented issue for limiting their practical use. Herein, we present the development of specific antibody attached water-resistant one-dimensional (1D) CsPbBr 3 nanowires, two-dimensional (2D) CsPbBr 3 nanoplatelets, and three-dimensional (3D) CsPbBr 3 nanocubes which can be used for selective and simultaneous two-photon imaging of heterogeneous breast cancer cells in the near IR biological window. The current manuscript reports the design of excellent photoluminescence quantum yield (PLQY), biocompatible and photostable 1D CsPbBr 3 nanowires, 2D CsPbBr 3 nanoplatelets, and 3D CsPbBr 3 nanocubes through an interfacial conversion from zero-dimensional (0D) Cs 4 PbBr 6 nanocrystals via a water triggered strategy. Reported data show that just by varying the amount of water, one can control the dimension of CsPbBr 3 perovskite crystals. Time-dependent transition electron microscopy and emission spectra have been reported to find the possible pathway for the formation of 1D, 2D, and 3D CsPbBr 3 nanocrystals from 0D Cs 4 PbBr 6 nanocrystals. Biocompatible 1D, 2D, and 3D CsPbBr 3 nanocrystals were developed by c...