Two energy transfer cassettes that exhibit a large pseudo Stokes' shift (up to 400 nm) due to efficient through-bond energy transfer (up to 99%) have been constructed. Selective binding of Fe(III) with the donor entity significantly suppresses the excitation energy transfer resulting in fluorescence quenching in aqueous solution and in living cells.
构建了两种能量传递盒,它们因高效的通过键能量传递(高达99%)而展现出大约400 nm的伪斯托克斯位移。Fe(III)与供体单元的选择性结合显著抑制了激发能量传递,从而导致在
水溶液和活细胞中荧光猝灭。