NDLI: High sensitivity indium antimonide thin film micro-Hall sensor arrays for simultaneous multiple detection of magnetic beads for biomedical applications

Content Provider	IEEE Xplore Digital Library
Author	Togawa, K. Sanbonsugi, H. Lapicki, A. Abe, M. Sandhu, A.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Electron., Tokyo Inst. of Technol., Japan (Togawa, K.)
Abstract	In this report the fabrication of an InSb Hall sensor arrays to simultaneously detect multiple superparamagnetic microbeads for biomedical applications is described. One-dimensional InSb Hall sensor arrays with 8 micro-Hall devices were fabricated using photolithography and wet chemical etching. The electrical characteristics and noise spectrum of the micro-Hall sensors were determined by van der Pauw Hall measurements and fast Fourier transform (FFT) spectrum analysis respectively. Results show that the offset voltage of all 8 Hall sensors was small at /spl sim/0.1 mV under a drive current (I/sub H/) of 100 /spl mu/A. The minimum detectable magnetic field is found to be 0.10 mG/(Hz)/sup 1/2/ at I/sub H/ = 1 mA. Calculations showed that the magnetic field from a single ferromagnetic particle with a radius of 50 nm at a distance of 200 nm from the sensor is about 4.4 G. Therefore, the sensitivity of the Hall array micro-Hall sensors is sufficient for detection of magnetic microbeads. In conclusion, the paper showed that real time simultaneous detection of multiple superparamagnetic beads using the InSb-Hall sensor array system is possible. These results suggest that possibility of using two dimensional Hall sensor array biochips for biomedical applications.
Sponsorship	Magnetics Soc. of Japan Magnetics Soc. of the IEEE
Starting Page	955
Ending Page	956
File Size	185772
Page Count	2
File Format	PDF
ISBN	0780390091
DOI	10.1109/INTMAG.2005.1463906
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-04-04
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sensor arrays Thin film sensors Indium Magnetic films Biosensors Magnetic sensors Chemical and biological sensors Sensor phenomena and characterization Chemical sensors Magnetic field measurement
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

High-sensitivity InSb thin-film micro-Hall sensor arrays for simultaneous multiple detection of magnetic beads for biomedical applications

Magnetic Field Mediated Collection and Dispersion of Superparamagentic Beads on Micro-Hall Effect Biosensors Using Localized Integrated Field Gradients for Biomedical Applications

Practical Hall effect sensors for biomedical instrumentation - 'horses for courses'

Micro Magnetic Thin - Film Sensor Using LC Resonance

A smart thin-film flow sensor for biomedical applications

Two-component thin-film microwave sensor of magnetic fields

Fabricating biomedical sensors with thin-film technology

Sensitivity Dependence of the Planar Hall Effect Sensor on the Free Layer of the Spin-Valve Structure

Integrated thin film magneto-impedance sensor head using plating process

High sensitivity indium antimonide thin film micro-Hall sensor arrays for simultaneous multiple detection of magnetic beads for biomedical applications

Similar Documents

High-sensitivity InSb thin-film micro-Hall sensor arrays for simultaneous multiple detection of magnetic beads for biomedical applications

Magnetic Field Mediated Collection and Dispersion of Superparamagentic Beads on Micro-Hall Effect Biosensors Using Localized Integrated Field Gradients for Biomedical Applications

Practical Hall effect sensors for biomedical instrumentation - 'horses for courses'

Micro Magnetic Thin - Film Sensor Using LC Resonance

A smart thin-film flow sensor for biomedical applications

Two-component thin-film microwave sensor of magnetic fields

Fabricating biomedical sensors with thin-film technology

Sensitivity Dependence of the Planar Hall Effect Sensor on the Free Layer of the Spin-Valve Structure

Integrated thin film magneto-impedance sensor head using plating process

High sensitivity indium antimonide thin film micro-Hall sensor arrays for simultaneous multiple detection of magnetic beads for biomedical applications