Aggregation Induced Emission Active Cytophilic Fluorescent Bioprobes for Long-Term Cell Tracking
申请人:The Hong Kong University of Science and Techno
公开号:US20130089889A1
公开(公告)日:2013-04-11
Fluorescent bioprobes comprising fluorogen formed nanoparticles comprising fluorogens with aggregation-induced emission (ATE) properties, which can be used for long-term cell tracking. The fluorogens are nonemissive in organic solution but become highly emissive when aggregated in aqueous solution. The fluorescent molecules can readily pass through cell membranes, stain only the cell cytoplasm, and form highly emissive nanoaggregates in aqueous media without any obvious cytoxicity in the living cells. Furthermore, the molecules can be retained inside the cells without noticeable leakage to the outside. Therefore, these ATE-based compounds can be used as selective and cell-compatible fluroescent bioprobes for long-term live cell tracking and imaging.
荧光生物探针由荧光原子团聚诱导发射(ATE)性质的荧光原子团聚形成的纳米粒子组成,可用于长期细胞追踪。这些荧光原子团在有机溶液中不发光,但在水溶液中聚集时变得高度发光。这些荧光分子可以轻松穿过细胞膜,仅染色细胞质,并在水介质中形成高度发光的纳米聚集体,而不对活细胞产生明显的细胞毒性。此外,这些分子可以在细胞内保留,而不会明显泄漏到外部。因此,这些基于ATE的化合物可用作选择性和细胞相容的荧光生物探针,用于长期活细胞追踪和成像。