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明胶-聚丙烯酸纳米微球可在4℃下自组装形成纳米棒,所形成的纳米棒结构规整并具有与纳米微球相同的直径.通过观察纳米棒形成的中间状态,发现该纳米棒由明胶-聚丙烯酸纳米微球一维排列而成.由于只有在较低温度下纳米微球才能形成棒状结构,并且圆二色性光谱数据证明明胶-聚丙烯酸纳米微球表面的明胶分子具有在低温下复性成为三螺旋构象的能力,因此可以推断明胶-聚丙烯酸纳米棒是由纳米微球表面的明胶分子通过复性为三螺旋结构所产生的氢键以及静电等力的作用一维自组装而形成的.
The gelatin-polyacrylic acid nanospheres can self-assemble into nanorods at 4 ℃, the formed nanorods are regular in structure and have the same diameter as nanospheres.By observing the intermediate state of nanorods formation, it is found that the nanorods consist of gelatin - Polyacrylic acid nano-microspheres are one-dimensional arrangement.Due to nano-microspheres can form rod-like structure only at lower temperature, and circular dichroism spectroscopy data prove that gelatin molecules on the surface of gelatin-polyacrylic acid nano-microspheres have low temperature Refolding triple helix conformation ability, it can be concluded gelatin - polyacrylic acid nanorods are nano-spherical surface of the gelatin molecules by refolding the triple helix structure of the hydrogen bond and the role of electrostatic one-dimensional self-assembly Forming.