Title :
Capacitive Transduction in Partially Disordered Systems: Application to LC-Based Biosensors
Author :
Abu-Abed, Alaeddin ; Lindquist, Robert G.
Author_Institution :
Univ. of Alabama in Huntsville, Huntsville
Abstract :
Capacitive transduction is investigated for use in a liquid crystal (LC) based sensors with potential applications to biological systems. The theory for tracking the average molecular orientation of a partially disordered liquid crystal film via capacitive transduction in an inhomogeneous, anisotropic media is presented. The sensitivity for the sensor at different alignment is discussed. Both the experimental and calculated values for fringing capacitance of a selected structure are presented.
Keywords :
biosensors; capacitive sensors; liquid crystal devices; molecular orientation; transducers; average molecular orientation; capacitive transduction; fringing capacitance; liquid crystal based biosensors; partially disordered liquid crystal film; Application software; Biosensors; Capacitive sensors; Chemical and biological sensors; Liquid crystals; Optical distortion; Optical films; Optical sensors; Permittivity; Sensor systems and applications;
Conference_Titel :
Sensors Applications Symposium, 2007. SAS '07. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0678-1
Electronic_ISBN :
1-4244-0678-1
DOI :
10.1109/SAS.2007.374358
