By Topic

Detection of DNA labeled with magnetic nanoparticles using MgO-based magnetic tunnel junction sensors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

7 Author(s)
Shen, Weifeng ; Physics Department, Brown University, Providence, Rhode Island 02912, USA ; Schrag, Benaiah D. ; Carter, Matthew J. ; Xie, Jin
more authors

Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2832880 

We have demonstrated the detection of 2.5 μM target DNA labeled with 16 nm Fe3O4 nanoparticles (NPs) and 50 nm commercial MACS™ NPs using arrays of magnetic tunnel junction sensors with (001)-oriented MgO barrier layers. Signal-to-noise ratios of 25 and 12 were obtained with Fe3O4 and MACS™ NPs, respectively. These data show conclusively that MgO-based MTJ sensor arrays are very promising candidates for future applications involving the accurate detection and identification of biomolecules tagged with magnetic nanoparticles.

Published in:

Journal of Applied Physics  (Volume:103 ,  Issue: 7 )