DNA模板诱导针状CdS纳米粒子的形成  

Formation of Needle-like CdS Nanoparticles on DNA Template

作　　者：陈霞[1] 靳健[1] 杨文胜[1] 郭中满[1] 江林[1] 杨百全[1] 徐力[1] 魏莉[1] 李铁津 郑大方[2] 

机构地区：[1]吉林大学化学系,长春130023 [2]吉林大学测试中心,长春130023

出　　处：《高等学校化学学报》2000年第7期1115-1117,共3页Chemical Journal of Chinese Universities

基　　金：吉林省自然科学基金! (批准号 :990 544 )资助

摘　　要：Monolayer of octadecylamine（ODA） and salmon sperm DNA or salmon sperm DNA-Cd complex were studied on air-water interface by π-A isotherm. After being co-transferred onto substrates by Langmuir-Blodgett technique, atomic force microscope（AFM） measurements show the DNA molecules are packed into lines in the film, due to the interactions between the ODA and DNA molecules. By exposing the ODA and DNA-Cd complex LB film to H2S, needle-like CdS nanoparticles were formed along the DNA lines as characterized by transmission electron microscope（TEM）. Electron diffraction（ED） image indicates that the so prepared needle-like CdS is a new kind of nanostructured materials.Monolayer of octadecylamine(ODA) and salmon sperm DNA or salmon sperm DNA-Cd complex were studied on air-water interface by π-A isotherm. After being co-transferred onto substrates by Langmuir-Blodgett technique, atomic force microscope(AFM) measurements show the DNA molecules are packed into lines in the film, due to the interactions between the ODA and DNA molecules. By exposing the ODA and DNA-Cd complex LB film to H_2S, needle-like CdS nanoparticles were formed along the DNA lines as characterized by transmission electron microscope(TEM). Electron diffraction(ED) image indicates that the so prepared needle-like CdS is a new kind of nanostructured materials.

关 键 词：DNA 模板合成 模板剂 纳米粒子 针状硫化镉 

分 类 号：O614.242[理学—无机化学]