酸处理纳米管钛酸与氨基酸相互作用研究  

Studies on Interaction of Acid-treated Nanotube Titanic Acid and Amino Acids

作　　者：张虎勤[1] 陈雪梅[1] 金振声[2] 廖光熙[1] 吴晓明[1] 杜建强[1] 曹翔[1] 

机构地区：[1]西安交通大学生物医学信息工程教育部重点实验室,生命科学与技术学院生物信息学研究中心,西安710049 [2]河南大学特种功能材料省重点实验室,开封475001

出　　处：《生物医学工程学杂志》2010年第3期617-621,共5页Journal of Biomedical Engineering

摘　　要：根据纳米管钛酸(NTA)所具有的独特光学性质、电学性质和光催化作用特性,对NTA进行酸活化处理,增强NTA的表面活性,利用透射电子显微镜(TEM)和傅立叶变换红外光谱法(FT-IR)对NTA表面结构和表面基团进行了表征和分析,探讨分析酸处理NTA与氨基酸的相互作用结果。分析发现,乙酸处理NTA长度明显变短,纳米管束直径无明显变化,NTA表面成功交联了羧基或酯基;酸处理NTA更易捕获氨基酸残基形成紧密结合。Nanotube titanic acid （NTA） has distinct optical and electrical character,and has photocatalysis character. In accordance with these qualities,NTA was treated with acid so as to enhance its surface activity. Surface structures and surface groups of acid-treated NTA were characterized and analyzed by Transmission Electron Microscope （TEM） and Fourier Transform Infrared Spectrometry （FT-IR）. The interaction between acid-treated NTA and amino acids was investigated. Analysis results showed that the lengths of acid-treated NTA became obviously shorter. The diameters of nanotube bundles did not change obviously with acid-treating. Meanwhile,the surface of acid-treated NTA was cross-linked with carboxyl or esterfunction. In addition,acid-treated NTA can catch amino acid residues easily,and then form close combination.

关 键 词：纳米管钛酸 透射电子显微镜 氨基酸 相互作用 

分 类 号：TB383.1[一般工业技术—材料科学与工程]