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

fYear

2009

fDate

21-25 June 2009

Firstpage

1806

Lastpage

1809

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/SENSOR.2009.5285725

Filename

5285725