Visual DNA -- identification of DNA sequence variations by bead trapping.

Abstract:

:In this paper we describe a method that uses the nearly covalent strength biotin-streptavidin interaction to attach a paramagnetic bead of micrometer size to a DNA molecule of nanometer size, scaling up the spatial size of a query DNA strand by a factor of 1000, making it visible to the human eye. The use of magnetic principles enables rapid binding and washing of detector beads, facilitating a readout of amplified DNA sequences in a few minutes. Here we exemplify the method on mitochondrial DNA variations using an array platform. Visual identification and documentation can be performed with an ordinary mobile phone equipped with a built-in camera.

journal_name

Genomics

journal_title

Genomics

authors

Ståhl PL,Gantelius J,Natanaelsson C,Ahmadian A,Andersson-Svahn H,Lundeberg J

doi

10.1016/j.ygeno.2007.07.014

subject

Has Abstract

pub_date

2007-12-01 00:00:00

pages

741-5

issue

6

eissn

0888-7543

issn

1089-8646

pii

S0888-7543(07)00197-8

journal_volume

90

pub_type

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