| 학회 |
한국고분자학회 |
| 학술대회 |
2014년 가을 (10/06 ~ 10/08, 제주 ICC) |
| 권호 |
39권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Hydrochromic Polydiacetylenes for Sweat Pore-Based Fingerprint Analysis |
| 초록 |
Hydrochromic materials have been actively investigated in the context of humidity sensing and measuring water contents in organic solvents. Here we report a sensor system that undergoes a brilliant blue-to-red color transition as well as ‘Turn-on’’ fluorescence upon exposure to water. Introduction of a hygroscopic element into a supramolecularly assembled polydiacetylene results in a hydrochromic conjugated polymer that is rapidly responsive (＜20 μs), spin-coatable and inkjet-compatible. Importantly, the hydrochromic sensor is found to be suitable for mapping human sweat pores. The exceedingly small quantities (sub-nanoliter) of water secreted from sweat pores are sufficient to promote an instantaneous colorimetric transition of the polymer. As a result, the sensor can be used to construct a precise map of active sweat pores on fingertips. This study has the potential of serving as new method for fingerprint analysis and for the clinical diagnosis of malfunctioning sweat pores. |
| 저자 |
이주섭1, 표민경1, 박범준2, 이찬우1, 김종만1
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| 소속 |
1한양대, 2경희대 |
| 키워드 |
Hydrochromic; Polydiacetylene
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| E-Mail |
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