Cart (Loading....) | Create Account
Close category search window

Quantitative detection of DNA labeled with magnetic nanoparticles using arrays of 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

4 Author(s)
Shen, Weifeng ; Physics Department, Brown University, Providence Rhode Island 02912, USA ; Schrag, Benaiah D. ; Carter, Matthew J. ; Xiao, Gang

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We have demonstrated the detection of 2.5 μM target DNA labeled with 16 nm Fe3O4 nanoparticles (NPs) using arrays of magnetic tunnel junction sensors with (001)-oriented MgO barrier layers. A MTJ sensor bridge was designed to detect the presence of magnetic NPs bonded with target DNA. A raw signal of 72 μV was obtained using complementary target DNA, as compared with a nonspecific bonding signal of 25 μV from noncomplementary control DNA. Our results indicate that the current system’s detection limit for analyte DNA is better than 100 nM.

Published in:

Applied Physics Letters  (Volume:93 ,  Issue: 3 )

Date of Publication:

Jul 2008

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.