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- Title
DNA Nanoribbon‐Templated Self‐Assembly of Ultrasmall Fluorescent Copper Nanoclusters with Enhanced Luminescence.
- Authors
Ouyang, Xiangyuan; Wang, Meifang; Guo, Linjie; Cui, Chengjun; Liu, Ting; Ren, Yongan; Zhao, Yan; Ge, Zhilei; Guo, Xiniu; Xie, Gang; Li, Jiang; Fan, Chunhai; Wang, Lihua
- Abstract
Fluorescent copper nanoclusters (CuNCs) have been widely used in chemical sensors, biological imaging, and light‐emitting devices. However, individual fluorescent CuNCs have limitations in their capabilities arising from poor photostability and weak emission intensities. As one kind of aggregation‐induced emission luminogen (AIEgen), the formation of aggregates with high compactness and good order can efficiently improve the emission intensity, stability, and tunability of CuNCs. Here, DNA nanoribbons, containing multiple specific binding sites, serve as a template for in situ synthesis and assembly of ultrasmall CuNCs (0.6 nm). These CuNC self‐assemblies exhibit enhanced luminescence and excellent fluorescence stability because of tight and ordered arrangement through DNA nanoribbons templating. Furthermore, the stable and bright CuNC assemblies are demonstrated in the high‐sensitivity detection and intracellular fluorescence imaging of biothiols.
- Subjects
LUMINESCENCE; DNA; COPPER; CHEMICAL detectors; IMAGING systems in biology; BINDING sites
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 29, p11934
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202003905