| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Glucose Sensors Fabricated by Piezoelectric Inkjet Printing |
| 초록 |
The piezoelectric inkjet printing holds great promise for fabrication of miniaturized bioelectronic devices. In this study, enzymatic glucose biosensors based on conducting polymer/glucose oxidase/HRP composites were fabricated by the inkjet printing. Combination of GOx and HRP has a synergistic effect resulting in significant amplification of the response signal. The bioink was printed on ITO coated PET film by a piezoelectric inkjet printer. An image that has multiple squares (1X1 cm) with 564 dpi resolution was prepared The patterned film was covered with a cellulose acetate membrane. Response to different glucose concentrations was measured by cyclic voltammetry and chronoamperometry. Pt wire and Ag/AgCl electrode were used as counter and reference electrodes. The fabricated glucose sensor exhibited a linear dose-dependent electrochemical response to glucose from 240 uM to 640 uM with the sensitivity of 2.569 nA·cm-2·uM (R2=0.983). The lower detection limit was 0.24 mM glucose. |
| 저자 |
윤연희1, 이병국1, 김성원2, 유봉영1, Kinam Park2, 조용우1
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| 소속 |
1한양대, 2Purdue Univ. Departments of Pharmaceutics and Biomedical Engineering |
| 키워드 |
Glucose sensor; Piezoelectric inkjet printing; Glucose oxidase; Horseradish peroxidase
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| E-Mail |
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