Capacitance-based Biosensors for Continuous Monitoring of Glucose : Design, Fabrication and Testing of Multiple Sensor Architectures

ISBN-13: 9783639123135 / Angielski / Miękka / 2009 / 88 str.

Sandeep Mariserla

Opis

Self-monitoring of blood glucose has become an important and critical tool for effective management of patients with diabetes. This book describes multiple MEMS (Microelectromechanical systems) sensor architectures that can continuously measure, in real time, the concentration of glucose in a solution. The devices incorporate a glucose-sensitive hydrogel membrane, which swells reversibly in the presence of a glucose containing solution. The MEMS architecture transforms the resultant swelling of the hydrogel membrane into the displacement of a capacitor plate. Signal transduction arises directly from motion of one capacitor plate with respect to the other fixed plate, resulting in a change in capacitance. Hence the presence or variation in the concentration of glucose can be observed as a change in capacitance of the device. In order to develop the continuous monitoring glucose sensor, various performance aspects, like the optimal hydrogel recipe as well as the repeatability of the hydrogel swelling response and the development of an efficient microfabrication scheme to manufacture the sensor, have been researched extensively.

O autorze

Sandeep Mariserla, Ph.D: Materials Science and Engineering at the
University of Illinois, Urbana-Champaign. M.Sc in Polymer Science
at the University of Madras. Currently, Product Engineer at
Intermolecular Inc., San Jose (CA), USA.