结论

在本研究中，朗缪尔单层技术作为二维 方法适用于空气-水/水界面 了解彼此之间互动的性质和方向 GO 和脂质模型。 具有相同 18 碳烷基的五种脂质 链，但故意选择不同的头组电荷 使可能的相互作用合理化。 实验结果 表明这些脂质和 GO 之间的相互作用是明确的 受静电相互作用支配。 当这些脂质 散布在空气-GO 分散界面，GO 可以结合 或被吸附到单层带正电荷的脂质中 DODAB 和 DSEPC，增加平均分子面积。 然而，单层带中性电荷的头基 （磷酸胆碱）或带负电荷的头部基团（磷酸和羧基）不吸附 GO，因为没有偏爱 静电相互作用。 因为磷脂 在生物系统中带负电或中性电， GO 可能被细胞摄取到膜中 是由于 GO 和 磷脂，但通过膜的生物活性。

当 GO 被注入到 DODAB 和 DSEPC 带正电荷单层，不同 发现了表面压力的观察结果。 GO 可以插入 单层 DODAB 以 20 mN/m 增加表面 压力。 然而，GO 不能扩散到与 即使在低得多的表面压力下 DSEPC 单层 可能是由于屏蔽了乙基磷基团。 GO 绑定到 DODAB 时的定向模型和 提出 DSEPC 单层来解释不同的 GO在空气-水界面的吸附行为。 建议采用“边缘向内”而不是“面向内”的方向 描述 GO 纳米片插入时的方向 DODAB 的单层。

作者信息

通讯作者

*电子邮件：rml@miami.edu (RML)。

笔记

作者声明没有竞争性经济利益。

致谢

这项工作得到了 2012 年桥梁基金资助 迈阿密大学。

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石墨烯与磷脂之间的作用——摘要、介绍

石墨烯与磷脂之间的作用——实验部分

石墨烯与磷脂之间的作用——结果和讨论

石墨烯与磷脂之间的作用——结论、致谢！