This paper proposes an integrated micro-chip for the manipulation and detection of magnetic particles (MPs). A conducting ring structure is used to manipulate MPs toward giant magnetoresistance (GMR) sensing elements for rapid detection. The GMR sensor is fabricated in a horseshoe shape in order to detect the majority of MPs that are trapped around the conducting structure. The GMR sensing elements are connected in a Wheatstone bridge circuit topology for optimum noise suppression. Full fabrication details of the micro-chip, characterization of the GMR sensors, and experimental results with MPs are presented in this paper. Experimental results showed that the micro-chip can detect MPs from low concentration samples after they were guided toward the GMR sensors by applying current to the conducting ring structure.
Skip Nav Destination
,
,
,
Article navigation
1 April 2012
PROCEEDINGS OF THE 55TH ANNUAL CONFERENCE ON MAGNETISM AND MAGNETIC MATERIALS
14-18 November 2010
Atlanta, Georgia
Research Article|
Magnetism and Magnetic Materials|
March 09 2012
An integrated micro-chip for rapid detection of magnetic particles
Chinthaka P. Gooneratne;
Chinthaka P. Gooneratne
a)
1Division of Physical Sciences and Engineering,
King Abdullah University of Science and Technology
, Thuwal 23955, Kingdom of Saudi Arabia
Search for other works by this author on:
Cai Liang;
Cai Liang
1Division of Physical Sciences and Engineering,
King Abdullah University of Science and Technology
, Thuwal 23955, Kingdom of Saudi Arabia
Search for other works by this author on:
Ioanna Giouroudi;
Ioanna Giouroudi
2Institute of Sensor and Actuator Systems,
Vienna University of Technology
, 1040 Vienna, Austria
Search for other works by this author on:
Jürgen Kosel
Jürgen Kosel
1Division of Physical Sciences and Engineering,
King Abdullah University of Science and Technology
, Thuwal 23955, Kingdom of Saudi Arabia
Search for other works by this author on:
Chinthaka P. Gooneratne
1,a)
Cai Liang
1
Ioanna Giouroudi
2
Jürgen Kosel
1
1Division of Physical Sciences and Engineering,
King Abdullah University of Science and Technology
, Thuwal 23955, Kingdom of Saudi Arabia
2Institute of Sensor and Actuator Systems,
Vienna University of Technology
, 1040 Vienna, Austria
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected].
J. Appl. Phys. 111, 07B327 (2012)
Article history
Received:
September 23 2011
Accepted:
November 28 2011
Citation
Chinthaka P. Gooneratne, Cai Liang, Ioanna Giouroudi, Jürgen Kosel; An integrated micro-chip for rapid detection of magnetic particles. J. Appl. Phys. 1 April 2012; 111 (7): 07B327. https://doi.org/10.1063/1.3678303
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
A step-by-step guide to perform x-ray photoelectron spectroscopy
Grzegorz Greczynski, Lars Hultman
Piezoelectric thin films and their applications in MEMS: A review
Jinpeng Liu, Hua Tan, et al.
Decoding diffraction and spectroscopy data with machine learning: A tutorial
D. Vizoso, R. Dingreville
Related Content
A giant magnetoresistance ring-sensor based microsystem for magnetic bead manipulation and detection
J. Appl. Phys. (March 2011)
Influence of the free-layer domain structure on domain-wall displacing type field sensors
J. Appl. Phys. (April 2011)
An integrated microfluidic cell for detection, manipulation, and sorting of single micron-sized magnetic beads
J. Appl. Phys. (April 2006)
Micron size GMR magnetic sensor with needle structure
AIP Conf. Proc. (May 2012)