| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Colorimetric Sensor for Detecting Wide-Range of Temperature and Photothermal Heating based on Block Copolymer-MoS2 Nanocomposites |
| 초록 |
Herein, we introduce a nanoscale colorimetric sensor capable of photothermal heating by infrared ray while detecting a temperature from 25 to 50 °C. In order to implement both functions in one system, MoS2, which can be used as photothermal heating agent and quencher for Forster Resonance Energy Transfer (FRET), was functionalized with three different block copolymers (BCP). Each BCP consists of the responsive block and the fluorescent block: the former is a PNIPAM-derivative polymer with distinct lower critical solution temperature (LCST) and the latter is a dye block with different colors. The fluorescence of the three BCPs turns independently on and off according to the temperature in the range of 25-50 °C, which brings sequential color changes from white to yellow, red and dark cyan. Thanks to its excellent reversibility and stability, we have introduced this nanocomposite into the hydrogel and patterned it, resulting in higher image resolution than conventional agents. |
| 저자 |
김태완1, 박찬호1, 이건호1, 김동재1, Kin Liao2, 김신현1, 김범준1
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| 소속 |
1KAIST, 2Khalifa Univ. |
| 키워드 |
responsive polymer; colorimetric sensor; photothermal heating; 2d material; block copolymer
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| E-Mail |
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