Next Article in Journal
Evaluation of Protein Adsorption on Chitosan Surfaces with Reflectometry Interference Spectroscopy
Previous Article in Journal
A Siren Detection System based on Mechanical Resonant Filters
Article Menu

Export Article

Open AccessArticle
Sensors 2001, 1(5), 138-147;

Magnetism-Based Remote Query Glucose Sensors

Department of Electrical Engineering and Materials Research Institute, The Pennsylvania State University, 208 Materials Research Lab, University Park, PA 16802, USA
Author to whom correspondence should be addressed.
Received: 18 September 2001 / Accepted: 28 September 2001 / Published: 7 October 2001
Full-Text   |   PDF [97 KB, uploaded 20 June 2014]   |  


Two wireless, passive remote query magnetism-based glucose sensors, which operate in combination with a mass and volume changing glucose responsive polymer, are presented. One sensor design is based upon the magnetostatic coupling of magnetically soft thin-film elements; as the polymer volume changes in response to glucose concentration so does the magnetostatic coupling between elements. In response to a time varying magnetic field, upon reversal of the magnetization vector of the elements the magnetostatic coupling determines the time rate of change of magnetic flux, and hence the amplitude of the voltage spike generated in a pick-up coil. The other sensor consists of a free-standing magnetoelastic thick-film, coated with a thin layer of the glucose responsive polymer. In response to a time varying magnetic field the sensor mechanically vibrates at a characteristic resonant frequency; the characteristic resonant frequency of the sensor linearly tracks the change in mass of the glucose responsive polymer. View Full-Text
Keywords: Glucose sensor; Fagnetostatic coupling; Fagnetoelastic; Fagnetostrictive; remote query Glucose sensor; Fagnetostatic coupling; Fagnetoelastic; Fagnetostrictive; remote query

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Ong, K.G.; Paulose, M.; Jain, M.K.; Gong, D.; Varghese, O.K.; Mungle, C.; Grimes, C.A. Magnetism-Based Remote Query Glucose Sensors. Sensors 2001, 1, 138-147.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top