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DNA Microstructure Based on Self-Assembly of 4-Sticky-End Holiday Junctions in Aqueous Solution

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Abstract:

Liverwort-like DNA microscale structures consist of 4-sticky-end Holiday junctions as DNA bricks that can be used in nanotechnology and nanobiotechnology to direct the self-assembly of nanomachines as well as DNA assembly. Previously it has not been possible to obtain such DNA microscale structural forms, but herein we report construction of a mesh-like material made up of 4 strands of 40-base DNA. Advanced bio-imaging techniques such as fluorescence correlation spectroscopy (FCS), laser scanning microscopy (LSM), and atomic force microscopy (AFM) help us as ultrasensitive detection tools for examing structures in solutions. Combinations of these techniques allow us to survey various chemical conditions of materials and solutions.

Keywords: AFM; DIFFUSIN; FCS; FLUORESCENT; NANOSTRUCTURE

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2007.527

Publication date: March 1, 2007

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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