中文摘要：

本文研究了5磺基水杨酸（SSA）与多种金属离子的相互作用的荧光光谱，发现Fe抖可以选择性猝灭SSA的荧光，而其他金属离子如Ca2＋、K＋、Cr3＋、Ni2＋,Mn2＋、Pb2＋、Cu2＋、Zn2＋、Co2＋以及Fe2＋均不能猝灭SSA的荧光。同时发现，加入EDTA竞争Fe3＋或加入盐酸羟胺还原Fe计均可以使SSA的荧光恢复。可以通过质子（H＋／OH-）、配位（Fe3＋／EDTA）和化学氧化还原（盐酸羟胺／KOS2O8）三种方式对其荧光进行可逆调控。在此基础上，分别以SSA和SSA-Fe3＋体系作为起始状态，构建了两化学输入的NOR、OR和INHIBIT分子逻辑门。

英文摘要：

The fluorescence spectra of the interaction between 5-sulfosalicylic acid（SSA） and the iron ion in different valence have been studied. This system shows a sharp Fe （III）-selective fluorescence quenching to SSA, whereas many other metal ions, such as Ca2＋ , K＋ . Cr3＋ , Ni2＋ , Mn2＋ , Pb2＋ , Cu2＋, Zn2＋ ,Co2＋ and Fe2＋ ,could not quench its fluorescence. In addition,the fluorescent intensity of SSA can be recovered by adding EDTA as a competitor or NH2 OH· HCl as a reducing agent. AS a result, the fluorescence intensity of SSA could be reversibly turned by H＋/OH or Fe3＋/EDTA or NH2OH·HCl/ K2S2O8 in aqueous solution. Hereby, starting with SSA system, a NOR logic gate was fabricated with Fe3＋ and H＋ as two chemical inputs. On the other hand,starting with SSA-Fea＋ complex system,an OR logic gate and two INHIBIT logic gates were fabricated.