Synthesis and Characterization of Glucosamine-Bound Near-Infrared Probes for Optical Imaging
作者:Cong Li、Tiffany R. Greenwood、Zaver M. Bhujwalla、Kristine Glunde
DOI:10.1021/ol060783e
日期:2006.8.1
see text] Two novel near-infrared (NIR) fluorescent probes have been synthesized by linking a carbocyanine fluorophore and glucosamine through different linkers. These probes demonstrated a high quantum yield, low cytotoxicity, reversible pH-dependent fluorescence in the physiological pH range, and a decreased aggregation tendency in aqueous solutions. In vitro NIR optical imaging studies revealed cellular
[结构:见正文]通过将碳花青素荧光团和葡糖胺通过不同的接头连接,已经合成了两种新颖的近红外(NIR)荧光探针。这些探针显示出高的量子产率,低的细胞毒性,在生理pH范围内可逆的pH依赖性荧光以及在水溶液中的聚集趋势降低。体外NIR光学成像研究揭示了这两种探针在四种乳腺上皮细胞系中的细胞摄取和强细胞内NIR荧光。