Silicon functionalization expands the repertoire of Si-rhodamine fluorescent probes
作者:Desaboini Nageswara Rao、Xincai Ji、Stephen C. Miller
DOI:10.1039/d2sc01821g
日期:——
molecules. Si-rhodamines, in which the bridging oxygen of rhodamines is replaced with a dimethyl silyl group, are increasingly the dye scaffold of choice for biological applications, as fluorescence is shifted into the near-infrared while maintaining high brightness. Despite intense interest in Si-rhodamines, there has been no exploration of the scope of silicon functionalization in these dyes, a potential
荧光染料如罗丹明被广泛用于测定活性和成像其他不可见分子的位置。Si-罗丹明,其中罗丹明的桥氧被二甲基甲硅烷基取代,越来越成为生物应用的首选染料支架,因为荧光转移到近红外,同时保持高亮度。尽管对 Si-罗丹明有浓厚的兴趣,但尚未探索这些染料中硅功能化的范围,这是传统罗丹明中不存在的潜在修饰位点。在这里,我们报告了广泛的甲硅烷基修饰,这些修饰可以使染料更亮,进一步红移,调节荧光的新方法,以及引入染料附着手柄,包括用于核 DNA 的荧光标记剂,SNAP 标记和 HaloTag 标记。因此,对桥接硅的修改对于改进和扩展所有 Si 染料的应用具有广泛的用途。