基于双控荧光开关的NOR和OR分子逻辑门  

NOR and OR Molecular Logic Gates Based on Double-control Fluorescent Switch

作　　者：宗国强[1,2] 吕功煊[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,兰州730000 [2]中国科学院研究生院,北京100049

出　　处：《化学学报》2009年第2期157-161,共5页Acta Chimica Sinica

基　　金：国家自然科学基金(No. 90210027)资助项目.

摘　　要：合成了L-精氨酸蒽衍生物1,考察了碱土及过渡金属离子对主体分子1荧光光谱的影响,结果发现,在中性水溶液条件下只有Cu2+能有效地猝灭其荧光.另外,通过OH-/H+和Cu2+/乙二胺四乙酸(EDTA)均能对化合物1的荧光强度进行可逆性调控.在此基础上,我们以化合物1水溶液作为起始状态,以OH-和Cu2+为两化学输入,构建了一个"或非"(NOR)分子逻辑门;以1-Cu2+水溶液体系作为起始状态,以H+和EDTA为两化学输入,构建了一个"或"(OR)分子逻辑门.An L-arginine derivative featuring an anthracene unit （1） was synthesized, which could selectively bind Cu^2＋ in neutral aqueous solutions resulting in fluorescence quenching. Almost no fluorescent changes were observed upon the addition of other metal ions such as Mg^2＋, Co^2＋, Ba^2＋, Ca^2＋, Ni^2＋, Zn^2＋, Cd^2＋, Fe^3＋and Hg^2＋. In addition, the fluorescence intensity of 1 could be reversibly tuned by OH^-/H^＋ or Cu^2＋/ethylenediaminetetraacetic acid （EDTA） in the neutral aqueous solutions. Hereby, starting with compound 1 system, a NOR logic gate was fabricated with OH- and Cu^2＋as two chemical inputs. On the other hand, starting with 1-Cu^2＋complex system, an OR logic gate was fabricated with H＋and EDTA as two chemical inputs.

关 键 词：分子逻辑门 荧光开关 L-精氨酸 蒽 CU^2+ 

分 类 号：TN25[电子电信—物理电子学]