| 학회 |
한국고분자학회 |
| 학술대회 |
2022년 봄 (04/06 ~ 04/08, 대전컨벤션센터) |
| 권호 |
47권 1호 |
| 발표분야 |
의료용 고분자 부문위원회 |
| 제목 |
Bimetallic Electrodes Passivated with Hyaluronic Acid for Mechanical and Electrochemical Stability of Smart Contact Lens |
| 초록 |
The duration and accuracy of the continuous glucose monitoring systems (CGMs) are affected by the stability of electrodes in the glucose sensor. Pt and Au electrodes with high sensitivity and stability have been mainly used for biosensors. However, the low ductility of Pt and large difference of thermal expansion coefficient between Pt and polymer substrate lead to critical defects. Au has a problem of corrosion and dissolution due to reaction with Cl- ions. Here, we developed hyaluronated gold/platinum (HA-Au/Pt) bimetallic electrodes for long-term stable and accurate smart contact lens for CGMs. The Au thin-film is used for stress relaxation layer of Pt thin-film. Also, we prevented the dissolution of the Au by Cl- ion in tears by passivating the edge of the Au/Pt bimetallic electrode with HA. We demonstrated that the smart contact lens applied HA-Au/Pt bimetallic electrodes have a high correlation (ρ=0.875) with 98.6 % clinically acceptable data for 4 weeks in vivo. |
| 저자 |
한혜현, 한세광
|
| 소속 |
포항공과대 |
| 키워드 |
Bimetallic Electrodes; Hyaluronic Acid; Continuous Glucose Monitoring Systems; Glucose Sensor; Smart Contact Lens
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| E-Mail |
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