Lys-Lys诱导的金纳米粒子组装  

Assembly of Au Nanoparticles by Lysine-Lysine Dipeptide

作　　者：徐力[1] 郭轶[1] 解仁国[1] 纪小会[1] 庄家骐[1] 杨文胜[1] 李铁津 

机构地区：[1]吉林大学化学学院

出　　处：《化学学报》2003年第4期469-472,共4页Acta Chimica Sinica

基　　金：国家自然科学基金 (No.50 1 72 0 1 9);教育部优秀青年教师资助计划资助项目

摘　　要：尝试利用赖氨酸分子作为连接剂将金纳米粒子组装成有序的纳米结构 .首先通过赖氨酸的氨基与金纳米粒子的作用将其固定在粒子表面 ,然后通过氨基酸的缩合将金纳米粒子连接成有序的纳米结构 .透射电子显微镜观察表明形成的纳米粒子网络结构中 ,相邻粒子之间的距离约为 1.5nm ,与由两个赖氨酸缩合而成的二肽 (Lys Lys)长度相符 .This paper reports the assembly of Au nanoparticles into 3-D network structures mediated by Lys-Lys. The condensation of. lysine residues mainly results in the formation of dipeptide as indicated by mass spectrometry. Two lysine molecules are connected together to form dipeptide (lys-lys) after the addition of condensing agent such as EDC. As a result, the gold nanoparticles are assembled into network array linked by Lys-Lys. The distance between two adjacent- nanoparticles in the network is. 1.5 nm as determined by TEM observations, in consistent with the length of the dipeptide.

关 键 词：金纳米粒子 组装 赖氨酸连接剂 纳米结构 生物分子 无机纳米复合体系 

分 类 号：TB383[一般工业技术—材料科学与工程] O614.123[理学—无机化学]