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Advancing DNA-based Nanotechnology Capabilities and Applications.

机译:推进基于DNA的纳米技术的功能和应用。

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摘要

Biological systems have inspired interest in developing artificial molecular self-assembly techniques that imitate nature's ability to harness chemical forces to specifically position atoms within intricate assemblies. Of the biomolecules used to mimic nature's abilities, nucleic acids have gained special attention. Specifically, deoxyribonucleic acid is a stable molecule with a readily accessible code that exhibits predictable and programmable intermolecular interactions. These properties are exploited in the revolutionary structural DNA nanotechnology method known as scaffolded DNA origami. For DNA origami to establish itself as a widely used method for creating self-assembling, complex, functional materials, current limitations need to be overcome and new methods need to be established to move forward with developing structures for diverse applications in many fields. The limitations discussed in this dissertation include 1) pushing the scale of well-formed, fully-addressable origami to two and seven times the size of conventional origami, 2) testing cost-effective staple strand synthesis methods for producing pools of oligos for a specified origami, and 3) engineering mechanical properties using non-natural nucleotides in DNA assemblies. After accomplishing the above, we're able to design complex DNA origami structures that incorporate many of the current developments in the field into a useful material with applicability in wide-ranging fields, namely cell biology and photonics.
机译:生物系统激发了人们对开发人工分子自组装技术的兴趣,该技术模仿自然界利用化学力将原子具体定位在复杂组装体中的能力。在用于模仿自然能力的生物分子中,核酸受到了特别关注。具体而言,脱氧核糖核酸是一种稳定的分子,具有易于获得的密码,显示出可预测和可编程的分子间相互作用。这些特性被称为骨架DNA折纸的革命性结构DNA纳米技术方法所利用。对于DNA折纸来说,要使其自身成为创建自组装,复杂,功能性材料的一种广泛使用的方法,就需要克服当前的局限性,并且需要建立新的方法,以发展用于许多领域的多种应用的结构。本文所讨论的局限性包括:1)将格式良好,可完全寻址的折纸的尺寸推至传统折纸尺寸的两倍和七倍; 2)测试用于生产特定规格寡聚物池的经济有效的短链合成方法折纸,以及3)在DNA组件中使用非天然核苷酸来工程化机械性能。完成上述步骤后,我们便能够设计出复杂的DNA折纸结构,该结构将本领域的许多最新进展整合到有用的材料中,并在细胞生物学和光子学等广泛领域中得到应用。

著录项

  • 作者

    Marchi, Alexandria N.;

  • 作者单位

    Duke University.;

  • 授予单位 Duke University.;
  • 学科 Nanotechnology.;Biology Cell.;Engineering Biomedical.;Chemistry Biochemistry.
  • 学位 Ph.D.
  • 年度 2014
  • 页码 408 p.
  • 总页数 408
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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