光致发光
材料科学
纳米技术
量子点
超分子化学
量子
光电子学
生物相容性
生物成像
红外线的
自组装
纳米结构
量子产额
化学
光学
分子
物理
荧光
有机化学
冶金
量子力学
作者
Kai Tao,Zhen Fan,Limin Sun,Pandeeswar Makam,Zhen Tian,Mark Ruegsegger,Shira Shaham-Niv,Derek J. Hansford,Ruth Aizen,Zui Pan,Scott M. Galster,Jianjie Ma,Fan Yuan,Mingsu Si,Songnan Qu,Mingjun Zhang,Ehud Gazit,Junbai Li
标识
DOI:10.1038/s41467-018-05568-9
摘要
Abstract Quantum confined materials have been extensively studied for photoluminescent applications. Due to intrinsic limitations of low biocompatibility and challenging modulation, the utilization of conventional inorganic quantum confined photoluminescent materials in bio-imaging and bio-machine interface faces critical restrictions. Here, we present aromatic cyclo-dipeptides that dimerize into quantum dots, which serve as building blocks to further self-assemble into quantum confined supramolecular structures with diverse morphologies and photoluminescence properties. Especially, the emission can be tuned from the visible region to the near-infrared region (420 nm to 820 nm) by modulating the self-assembly process. Moreover, no obvious cytotoxic effect is observed for these nanostructures, and their utilization for in vivo imaging and as phosphors for light-emitting diodes is demonstrated. The data reveal that the morphologies and optical properties of the aromatic cyclo-dipeptide self-assemblies can be tuned, making them potential candidates for supramolecular quantum confined materials providing biocompatible alternatives for broad biomedical and opto-electric applications.
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