改性脂类分子自组装微管模板的制备及金属化

利用联乙炔基甘油磷脂酰乙二醇分子自组装制备了脂类微管,并以该脂类微管为模板,在其表面化学沉积制备了镀镍金属微管。SEM和TEM观察表明,自组装微管的生成率很高,脂类微管呈弯曲螺旋结构,具有很高的长径比,平均长度为380μm,平均直径为110 nm;金属微管表面相对致密,平均长度为120μm,平均直径为210 nm。XRD分析结果表明,镍镀层为非晶态结构。金属微管可用作载体包埋海洋防污剂或药物,控制它们的释放,可望用于新型功能材料的开发。

Preparation of Modified Lipid Molecular Self-assembly Microtubule Template and Its Metallization

Lipid microtubules are prepared with self-assembly method from diacetylenic glycerol phosphatidylhydroxyethanol,a modified lipid molecule.Metallic microtubules are obtained on the template of these lipid tubules by electroless plating of Ni.SEM and TEM examination shows that there is a high yield of microtubules in the self-assembly from the lipid molecules,and they present a wrapped helical structure with a high aspect ratio.Their average length is 380 μm,and the average diameter is 110 nm.The metallized microtubules have a fine plating surface with an average length of 120 μm and an average diameter of 210 nm.XRD analysis indicates that the coated Ni on the microtubule template is in a non-crystalline state.Metallized microtubules can be used as a vehicle to encapsulate marine antifouling agents or drugs in its lumen to control their release.Hence,metallized microtubules can be pontential to be developed for novel micro-and nano-meter functional materials.