Title :
Flexible enzyme free glucose micro-sensor for continuous monitoring applications
Author :
Lee, Y.J. ; Kim, J.D. ; Park, J.Y.
Author_Institution :
Dept. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
Flexible enzyme free glucose micro-sensor with nanoporous Pt (platinum) working electrode on a bio-compatible PET (polyethylene terephthalate) film was designed, fabricated, and characterized for continuous monitoring applications. The fabricated flexible sensor showed electrode surface RF (roughness factor) of 106.5 which was much higher than that of the sensor with sputtered Au electrode. The fabricated sensor exhibited high sensitivity of 20.16 muA/mMmiddotcm2 with correlation coefficient of 0.958 without affecting inferring species in glucose concentrations ranged from 5 to 30 mM. It also exhibited low detection limit of 25 muM, and highly stable recovery characteristic. Flexibility, bio-compatibility, and enzyme free characteristic of the fabricated sensor are strong advantages for continuous glucose monitoring applications.
Keywords :
biochemistry; biomedical equipment; biomedical materials; blood; chemical sensors; diseases; electrodes; microsensors; nanoporous materials; patient monitoring; platinum; polymer films; prosthetics; surface roughness; Pt; biocompatible PET film; biocompatible polyethylene terephthalate film; blood glucose; continuous glucose monitoring; continuous monitoring applications; correlation coefficient; electrode surface roughness factor; flexible enzyme free glucose microsensor; glucose concentrations; hypoglycemia; implants; nanoporous platinum; Biochemistry; Biosensors; Electrodes; Monitoring; Nanoporous materials; Platinum; Polyethylene; Positron emission tomography; Sensor phenomena and characterization; Sugar; Continuous monitoring; Enzyme free; Flexible; Glucose; Micro-sensor; Nanoporous Pt; PET;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4244-4190-7
Electronic_ISBN :
978-1-4244-4193-8
DOI :
10.1109/SENSOR.2009.5285725
