A new reporter design based on DNA origami nanostructures for quantification of short oligonucleotides using microbeads View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2019-12

AUTHORS

Youngeun Choi, Carsten Schmidt, Philip Tinnefeld, Ilko Bald, Stefan Rödiger

ABSTRACT

The DNA origami technique has great potential for the development of brighter and more sensitive reporters for fluorescence based detection schemes such as a microbead-based assay in diagnostic applications. The nanostructures can be programmed to include multiple dye molecules to enhance the measured signal as well as multiple probe strands to increase the binding strength of the target oligonucleotide to these nanostructures. Here we present a proof-of-concept study to quantify short oligonucleotides by developing a novel DNA origami based reporter system, combined with planar microbead assays. Analysis of the assays using the VideoScan digital imaging platform showed DNA origami to be a more suitable reporter candidate for quantification of the target oligonucleotides at lower concentrations than a conventional reporter that consists of one dye molecule attached to a single stranded DNA. Efforts have been made to conduct multiplexed analysis of different targets as well as to enhance fluorescence signals obtained from the reporters. We therefore believe that the quantification of short oligonucleotides that exist in low copy numbers is achieved in a better way with the DNA origami nanostructures as reporters. More... »

PAGES

4769

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/s41598-019-41136-x

DOI

http://dx.doi.org/10.1038/s41598-019-41136-x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112856136

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30886341


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