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中文摘要：
DNA分子具有稳定的物理化学性质,成为纳米领域的重要实验材料,已有许多将其作为模板构建纳米线等方面的研究,因而,DNA分子的操纵技术显得尤为重要。分子梳技术利用水流动时的弯月面操纵DNA分子,是构建特定的DNA分子纳米结构的一个重要方法。本文采用一种改良分子梳技术,用原子力显微镜观察水和乙醇操纵DNA分子后形成的规则图案,分析弯月面和液流对DNA分子的作用,并讨论了液体和DNA分子在操纵时的作用机制。
英文摘要：
Due to its unique physical and chemical properties, DNA has recently become a promising material for building blocks in nanofabrication. Many researches focus on how to use DNA molecules as a template for nanowires Molecular Combing technique is one of important methods to manipulate DNA molecules by using a water meniscus and form specific DNA nano-structures on surfaces. In this paper, by employing a modified molecular combing technique, special patterns of DNA molecules was formed, and the interaction between liquid flows or meniscus and DNA molecules was analyzed, and the mechanism of manipulating DNA molecules by liquid was studied.
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