Fabrication and characterization of PNA-DNA hybrid nanostructures

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Title
Fabrication and characterization of PNA-DNA hybrid nanostructures
Author(s)
B Gnapareddy; J A Kim; S R Dugasani; A Tandon; B Kim; S Bashar; J A Choi; G H Joe; T Kim; Tai Hwan Ha; S H Park
Bibliographic Citation
Rsc Advances, vol. 4, pp. 35554-35558
Publication Year
2014
Abstract
Although the distinct properties and synthesis methodology of peptide nucleic acid (PNA) molecules have been established by extensive studies, the construction of an artificial nanostructure made from PNA has been examined in only a few reports. Here we study the feasibility of constructing PNA-DNA hybrid nanostructures by conventional free solution annealing and substrate assisted growth methods. For conventional free solution annealing, we introduced a 2-step annealing procedure to mitigate the self-aggregation of PNA in the formation of stable PNA-DNA hybrid structures. Atomic force microscopy images revealed the formation of PNA-DNA hybrid nanostructures smaller than normal DNA and the Raman band intensities of the hybrid gradually decreased as a few DNA strands were replaced by PNA possibly due to the fast binding properties of PNA and the structural stress between PNA and DNA.
ISSN
2046-2069
Publisher
Royal Soc Chem
DOI
http://dx.doi.org/10.1039/c4ra04751f
Type
Article
Appears in Collections:
Division of Bio Technology Innovation > Core Research Facility & Analysis Center > 1. Journal Articles
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